1 | <?php
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2 | /**
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3 | *
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4 | * @package dbal
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5 | * @version $Id$
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6 | * @copyright (c) 2007 phpBB Group
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7 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License
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8 | *
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9 | */
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10 |
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11 | /**
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12 | * @ignore
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13 | */
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14 | if (!defined('IN_PHPBB'))
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15 | {
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16 | exit;
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17 | }
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18 |
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19 | /**
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20 | * Database Tools for handling cross-db actions such as altering columns, etc.
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21 | * Currently not supported is returning SQL for creating tables.
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22 | *
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23 | * @package dbal
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24 | * @note currently not used within phpBB3, but may be utilized later.
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25 | */
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26 | class phpbb_db_tools
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27 | {
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28 | /**
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29 | * Current sql layer
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30 | */
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31 | var $sql_layer = '';
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32 |
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33 | /**
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34 | * @var object DB object
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35 | */
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36 | var $db = NULL;
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37 |
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38 | /**
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39 | * The Column types for every database we support
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40 | * @var array
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41 | */
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42 | var $dbms_type_map = array(
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43 | 'mysql_41' => array(
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44 | 'INT:' => 'int(%d)',
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45 | 'BINT' => 'bigint(20)',
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46 | 'UINT' => 'mediumint(8) UNSIGNED',
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47 | 'UINT:' => 'int(%d) UNSIGNED',
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48 | 'TINT:' => 'tinyint(%d)',
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49 | 'USINT' => 'smallint(4) UNSIGNED',
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50 | 'BOOL' => 'tinyint(1) UNSIGNED',
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51 | 'VCHAR' => 'varchar(255)',
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52 | 'VCHAR:' => 'varchar(%d)',
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53 | 'CHAR:' => 'char(%d)',
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54 | 'XSTEXT' => 'text',
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55 | 'XSTEXT_UNI'=> 'varchar(100)',
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56 | 'STEXT' => 'text',
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57 | 'STEXT_UNI' => 'varchar(255)',
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58 | 'TEXT' => 'text',
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59 | 'TEXT_UNI' => 'text',
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60 | 'MTEXT' => 'mediumtext',
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61 | 'MTEXT_UNI' => 'mediumtext',
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62 | 'TIMESTAMP' => 'int(11) UNSIGNED',
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63 | 'DECIMAL' => 'decimal(5,2)',
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64 | 'DECIMAL:' => 'decimal(%d,2)',
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65 | 'PDECIMAL' => 'decimal(6,3)',
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66 | 'PDECIMAL:' => 'decimal(%d,3)',
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67 | 'VCHAR_UNI' => 'varchar(255)',
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68 | 'VCHAR_UNI:'=> 'varchar(%d)',
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69 | 'VCHAR_CI' => 'varchar(255)',
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70 | 'VARBINARY' => 'varbinary(255)',
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71 | ),
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72 |
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73 | 'mysql_40' => array(
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74 | 'INT:' => 'int(%d)',
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75 | 'BINT' => 'bigint(20)',
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76 | 'UINT' => 'mediumint(8) UNSIGNED',
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77 | 'UINT:' => 'int(%d) UNSIGNED',
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78 | 'TINT:' => 'tinyint(%d)',
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79 | 'USINT' => 'smallint(4) UNSIGNED',
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80 | 'BOOL' => 'tinyint(1) UNSIGNED',
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81 | 'VCHAR' => 'varbinary(255)',
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82 | 'VCHAR:' => 'varbinary(%d)',
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83 | 'CHAR:' => 'binary(%d)',
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84 | 'XSTEXT' => 'blob',
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85 | 'XSTEXT_UNI'=> 'blob',
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86 | 'STEXT' => 'blob',
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87 | 'STEXT_UNI' => 'blob',
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88 | 'TEXT' => 'blob',
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89 | 'TEXT_UNI' => 'blob',
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90 | 'MTEXT' => 'mediumblob',
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91 | 'MTEXT_UNI' => 'mediumblob',
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92 | 'TIMESTAMP' => 'int(11) UNSIGNED',
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93 | 'DECIMAL' => 'decimal(5,2)',
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94 | 'DECIMAL:' => 'decimal(%d,2)',
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95 | 'PDECIMAL' => 'decimal(6,3)',
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96 | 'PDECIMAL:' => 'decimal(%d,3)',
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97 | 'VCHAR_UNI' => 'blob',
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98 | 'VCHAR_UNI:'=> array('varbinary(%d)', 'limit' => array('mult', 3, 255, 'blob')),
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99 | 'VCHAR_CI' => 'blob',
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100 | 'VARBINARY' => 'varbinary(255)',
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101 | ),
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102 |
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103 | 'firebird' => array(
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104 | 'INT:' => 'INTEGER',
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105 | 'BINT' => 'DOUBLE PRECISION',
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106 | 'UINT' => 'INTEGER',
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107 | 'UINT:' => 'INTEGER',
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108 | 'TINT:' => 'INTEGER',
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109 | 'USINT' => 'INTEGER',
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110 | 'BOOL' => 'INTEGER',
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111 | 'VCHAR' => 'VARCHAR(255) CHARACTER SET NONE',
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112 | 'VCHAR:' => 'VARCHAR(%d) CHARACTER SET NONE',
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113 | 'CHAR:' => 'CHAR(%d) CHARACTER SET NONE',
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114 | 'XSTEXT' => 'BLOB SUB_TYPE TEXT CHARACTER SET NONE',
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115 | 'STEXT' => 'BLOB SUB_TYPE TEXT CHARACTER SET NONE',
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116 | 'TEXT' => 'BLOB SUB_TYPE TEXT CHARACTER SET NONE',
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117 | 'MTEXT' => 'BLOB SUB_TYPE TEXT CHARACTER SET NONE',
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118 | 'XSTEXT_UNI'=> 'VARCHAR(100) CHARACTER SET UTF8',
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119 | 'STEXT_UNI' => 'VARCHAR(255) CHARACTER SET UTF8',
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120 | 'TEXT_UNI' => 'BLOB SUB_TYPE TEXT CHARACTER SET UTF8',
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121 | 'MTEXT_UNI' => 'BLOB SUB_TYPE TEXT CHARACTER SET UTF8',
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122 | 'TIMESTAMP' => 'INTEGER',
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123 | 'DECIMAL' => 'DOUBLE PRECISION',
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124 | 'DECIMAL:' => 'DOUBLE PRECISION',
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125 | 'PDECIMAL' => 'DOUBLE PRECISION',
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126 | 'PDECIMAL:' => 'DOUBLE PRECISION',
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127 | 'VCHAR_UNI' => 'VARCHAR(255) CHARACTER SET UTF8',
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128 | 'VCHAR_UNI:'=> 'VARCHAR(%d) CHARACTER SET UTF8',
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129 | 'VCHAR_CI' => 'VARCHAR(255) CHARACTER SET UTF8',
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130 | 'VARBINARY' => 'CHAR(255) CHARACTER SET NONE',
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131 | ),
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132 |
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133 | 'mssql' => array(
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134 | 'INT:' => '[int]',
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135 | 'BINT' => '[float]',
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136 | 'UINT' => '[int]',
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137 | 'UINT:' => '[int]',
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138 | 'TINT:' => '[int]',
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139 | 'USINT' => '[int]',
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140 | 'BOOL' => '[int]',
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141 | 'VCHAR' => '[varchar] (255)',
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142 | 'VCHAR:' => '[varchar] (%d)',
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143 | 'CHAR:' => '[char] (%d)',
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144 | 'XSTEXT' => '[varchar] (1000)',
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145 | 'STEXT' => '[varchar] (3000)',
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146 | 'TEXT' => '[varchar] (8000)',
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147 | 'MTEXT' => '[text]',
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148 | 'XSTEXT_UNI'=> '[varchar] (100)',
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149 | 'STEXT_UNI' => '[varchar] (255)',
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150 | 'TEXT_UNI' => '[varchar] (4000)',
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151 | 'MTEXT_UNI' => '[text]',
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152 | 'TIMESTAMP' => '[int]',
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153 | 'DECIMAL' => '[float]',
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154 | 'DECIMAL:' => '[float]',
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155 | 'PDECIMAL' => '[float]',
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156 | 'PDECIMAL:' => '[float]',
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157 | 'VCHAR_UNI' => '[varchar] (255)',
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158 | 'VCHAR_UNI:'=> '[varchar] (%d)',
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159 | 'VCHAR_CI' => '[varchar] (255)',
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160 | 'VARBINARY' => '[varchar] (255)',
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161 | ),
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162 |
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163 | 'oracle' => array(
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164 | 'INT:' => 'number(%d)',
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165 | 'BINT' => 'number(20)',
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166 | 'UINT' => 'number(8)',
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167 | 'UINT:' => 'number(%d)',
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168 | 'TINT:' => 'number(%d)',
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169 | 'USINT' => 'number(4)',
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170 | 'BOOL' => 'number(1)',
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171 | 'VCHAR' => 'varchar2(255)',
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172 | 'VCHAR:' => 'varchar2(%d)',
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173 | 'CHAR:' => 'char(%d)',
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174 | 'XSTEXT' => 'varchar2(1000)',
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175 | 'STEXT' => 'varchar2(3000)',
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176 | 'TEXT' => 'clob',
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177 | 'MTEXT' => 'clob',
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178 | 'XSTEXT_UNI'=> 'varchar2(300)',
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179 | 'STEXT_UNI' => 'varchar2(765)',
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180 | 'TEXT_UNI' => 'clob',
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181 | 'MTEXT_UNI' => 'clob',
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182 | 'TIMESTAMP' => 'number(11)',
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183 | 'DECIMAL' => 'number(5, 2)',
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184 | 'DECIMAL:' => 'number(%d, 2)',
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185 | 'PDECIMAL' => 'number(6, 3)',
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186 | 'PDECIMAL:' => 'number(%d, 3)',
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187 | 'VCHAR_UNI' => 'varchar2(765)',
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188 | 'VCHAR_UNI:'=> array('varchar2(%d)', 'limit' => array('mult', 3, 765, 'clob')),
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189 | 'VCHAR_CI' => 'varchar2(255)',
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190 | 'VARBINARY' => 'raw(255)',
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191 | ),
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192 |
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193 | 'sqlite' => array(
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194 | 'INT:' => 'int(%d)',
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195 | 'BINT' => 'bigint(20)',
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196 | 'UINT' => 'INTEGER UNSIGNED', //'mediumint(8) UNSIGNED',
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197 | 'UINT:' => 'INTEGER UNSIGNED', // 'int(%d) UNSIGNED',
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198 | 'TINT:' => 'tinyint(%d)',
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199 | 'USINT' => 'INTEGER UNSIGNED', //'mediumint(4) UNSIGNED',
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200 | 'BOOL' => 'INTEGER UNSIGNED', //'tinyint(1) UNSIGNED',
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201 | 'VCHAR' => 'varchar(255)',
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202 | 'VCHAR:' => 'varchar(%d)',
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203 | 'CHAR:' => 'char(%d)',
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204 | 'XSTEXT' => 'text(65535)',
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205 | 'STEXT' => 'text(65535)',
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206 | 'TEXT' => 'text(65535)',
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207 | 'MTEXT' => 'mediumtext(16777215)',
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208 | 'XSTEXT_UNI'=> 'text(65535)',
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209 | 'STEXT_UNI' => 'text(65535)',
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210 | 'TEXT_UNI' => 'text(65535)',
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211 | 'MTEXT_UNI' => 'mediumtext(16777215)',
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212 | 'TIMESTAMP' => 'INTEGER UNSIGNED', //'int(11) UNSIGNED',
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213 | 'DECIMAL' => 'decimal(5,2)',
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214 | 'DECIMAL:' => 'decimal(%d,2)',
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215 | 'PDECIMAL' => 'decimal(6,3)',
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216 | 'PDECIMAL:' => 'decimal(%d,3)',
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217 | 'VCHAR_UNI' => 'varchar(255)',
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218 | 'VCHAR_UNI:'=> 'varchar(%d)',
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219 | 'VCHAR_CI' => 'varchar(255)',
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220 | 'VARBINARY' => 'blob',
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221 | ),
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222 |
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223 | 'postgres' => array(
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224 | 'INT:' => 'INT4',
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225 | 'BINT' => 'INT8',
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226 | 'UINT' => 'INT4', // unsigned
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227 | 'UINT:' => 'INT4', // unsigned
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228 | 'USINT' => 'INT2', // unsigned
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229 | 'BOOL' => 'INT2', // unsigned
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230 | 'TINT:' => 'INT2',
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231 | 'VCHAR' => 'varchar(255)',
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232 | 'VCHAR:' => 'varchar(%d)',
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233 | 'CHAR:' => 'char(%d)',
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234 | 'XSTEXT' => 'varchar(1000)',
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235 | 'STEXT' => 'varchar(3000)',
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236 | 'TEXT' => 'varchar(8000)',
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237 | 'MTEXT' => 'TEXT',
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238 | 'XSTEXT_UNI'=> 'varchar(100)',
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239 | 'STEXT_UNI' => 'varchar(255)',
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240 | 'TEXT_UNI' => 'varchar(4000)',
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241 | 'MTEXT_UNI' => 'TEXT',
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242 | 'TIMESTAMP' => 'INT4', // unsigned
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243 | 'DECIMAL' => 'decimal(5,2)',
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244 | 'DECIMAL:' => 'decimal(%d,2)',
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245 | 'PDECIMAL' => 'decimal(6,3)',
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246 | 'PDECIMAL:' => 'decimal(%d,3)',
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247 | 'VCHAR_UNI' => 'varchar(255)',
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248 | 'VCHAR_UNI:'=> 'varchar(%d)',
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249 | 'VCHAR_CI' => 'varchar_ci',
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250 | 'VARBINARY' => 'bytea',
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251 | ),
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252 | );
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253 |
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254 | /**
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255 | * A list of types being unsigned for better reference in some db's
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256 | * @var array
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257 | */
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258 | var $unsigned_types = array('UINT', 'UINT:', 'USINT', 'BOOL', 'TIMESTAMP');
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259 |
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260 | /**
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261 | * A list of supported DBMS. We change this class to support more DBMS, the DBMS itself only need to follow some rules.
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262 | * @var array
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263 | */
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264 | var $supported_dbms = array('firebird', 'mssql', 'mysql_40', 'mysql_41', 'oracle', 'postgres', 'sqlite');
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265 |
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266 | /**
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267 | * This is set to true if user only wants to return the 'to-be-executed' SQL statement(s) (as an array).
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268 | * This mode has no effect on some methods (inserting of data for example). This is expressed within the methods command.
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269 | */
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270 | var $return_statements = false;
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271 |
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272 | /**
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273 | * Constructor. Set DB Object and set {@link $return_statements return_statements}.
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274 | *
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275 | * @param phpbb_dbal $db DBAL object
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276 | * @param bool $return_statements True if only statements should be returned and no SQL being executed
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277 | */
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278 | function phpbb_db_tools(&$db, $return_statements = false)
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279 | {
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280 | $this->db = $db;
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281 | $this->return_statements = $return_statements;
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282 |
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283 | // Determine mapping database type
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284 | switch ($this->db->sql_layer)
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285 | {
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286 | case 'mysql':
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287 | $this->sql_layer = 'mysql_40';
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288 | break;
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289 |
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290 | case 'mysql4':
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291 | if (version_compare($this->db->sql_server_info(true), '4.1.3', '>='))
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292 | {
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293 | $this->sql_layer = 'mysql_41';
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294 | }
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295 | else
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296 | {
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297 | $this->sql_layer = 'mysql_40';
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298 | }
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299 | break;
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300 |
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301 | case 'mysqli':
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302 | $this->sql_layer = 'mysql_41';
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303 | break;
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304 |
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305 | case 'mssql':
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306 | case 'mssql_odbc':
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307 | $this->sql_layer = 'mssql';
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308 | break;
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309 |
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310 | default:
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311 | $this->sql_layer = $this->db->sql_layer;
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312 | break;
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313 | }
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314 | }
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315 |
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316 | /**
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317 | * Check if table exists
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318 | *
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319 | *
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320 | * @param string $table_name The table name to check for
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321 | * @return bool true if table exists, else false
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322 | */
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323 | function sql_table_exists($table_name)
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324 | {
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325 | $this->db->sql_return_on_error(true);
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326 | $result = $this->db->sql_query_limit('SELECT * FROM ' . $table_name, 1);
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327 | $this->db->sql_return_on_error(false);
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328 |
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329 | if ($result)
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330 | {
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331 | $this->db->sql_freeresult($result);
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332 | return true;
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333 | }
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334 |
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335 | return false;
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336 | }
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337 |
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338 | /**
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339 | * Create SQL Table
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340 | *
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341 | * @param string $table_name The table name to create
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342 | * @param array $table_data Array containing table data.
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343 | * @return array Statements if $return_statements is true.
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344 | */
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345 | function sql_create_table($table_name, $table_data)
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346 | {
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347 | // holds the DDL for a column
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348 | $columns = $statements = array();
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349 |
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350 | if ($this->sql_table_exists($table_name))
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351 | {
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352 | return $this->_sql_run_sql($statements);
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353 | }
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354 |
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355 | // Begin transaction
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356 | $statements[] = 'begin';
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357 |
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358 | // Determine if we have created a PRIMARY KEY in the earliest
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359 | $primary_key_gen = false;
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360 |
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361 | // Determine if the table must be created with TEXTIMAGE
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362 | $create_textimage = false;
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363 |
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364 | // Determine if the table requires a sequence
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365 | $create_sequence = false;
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366 |
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367 | // Begin table sql statement
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368 | switch ($this->sql_layer)
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369 | {
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370 | case 'mssql':
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371 | $table_sql = 'CREATE TABLE [' . $table_name . '] (' . "\n";
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372 | break;
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373 |
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374 | default:
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375 | $table_sql = 'CREATE TABLE ' . $table_name . ' (' . "\n";
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376 | break;
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377 | }
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378 |
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379 | // Iterate through the columns to create a table
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380 | foreach ($table_data['COLUMNS'] as $column_name => $column_data)
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381 | {
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382 | // here lies an array, filled with information compiled on the column's data
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383 | $prepared_column = $this->sql_prepare_column_data($table_name, $column_name, $column_data);
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384 |
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385 | // here we add the definition of the new column to the list of columns
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386 | switch ($this->sql_layer)
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387 | {
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388 | case 'mssql':
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389 | $columns[] = "\t [{$column_name}] " . $prepared_column['column_type_sql_default'];
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390 | break;
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391 |
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392 | default:
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393 | $columns[] = "\t {$column_name} " . $prepared_column['column_type_sql'];
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394 | break;
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395 | }
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396 |
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397 | // see if we have found a primary key set due to a column definition if we have found it, we can stop looking
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398 | if (!$primary_key_gen)
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399 | {
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400 | $primary_key_gen = isset($prepared_column['primary_key_set']) && $prepared_column['primary_key_set'];
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401 | }
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402 |
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403 | // create textimage DDL based off of the existance of certain column types
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404 | if (!$create_textimage)
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405 | {
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406 | $create_textimage = isset($prepared_column['textimage']) && $prepared_column['textimage'];
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407 | }
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408 |
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409 | // create sequence DDL based off of the existance of auto incrementing columns
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410 | if (!$create_sequence && isset($prepared_column['auto_increment']) && $prepared_column['auto_increment'])
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411 | {
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412 | $create_sequence = $column_name;
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413 | }
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414 | }
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415 |
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416 | // this makes up all the columns in the create table statement
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417 | $table_sql .= implode(",\n", $columns);
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418 |
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419 | // Close the table for two DBMS and add to the statements
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420 | switch ($this->sql_layer)
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421 | {
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422 | case 'firebird':
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423 | $table_sql .= "\n);";
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424 | $statements[] = $table_sql;
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425 | break;
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426 |
|
---|
427 | case 'mssql':
|
---|
428 | $table_sql .= "\n) ON [PRIMARY]" . (($create_textimage) ? ' TEXTIMAGE_ON [PRIMARY]' : '');
|
---|
429 | $statements[] = $table_sql;
|
---|
430 | break;
|
---|
431 | }
|
---|
432 |
|
---|
433 | // we have yet to create a primary key for this table,
|
---|
434 | // this means that we can add the one we really wanted instead
|
---|
435 | if (!$primary_key_gen)
|
---|
436 | {
|
---|
437 | // Write primary key
|
---|
438 | if (isset($table_data['PRIMARY_KEY']))
|
---|
439 | {
|
---|
440 | if (!is_array($table_data['PRIMARY_KEY']))
|
---|
441 | {
|
---|
442 | $table_data['PRIMARY_KEY'] = array($table_data['PRIMARY_KEY']);
|
---|
443 | }
|
---|
444 |
|
---|
445 | switch ($this->sql_layer)
|
---|
446 | {
|
---|
447 | case 'mysql_40':
|
---|
448 | case 'mysql_41':
|
---|
449 | case 'postgres':
|
---|
450 | case 'sqlite':
|
---|
451 | $table_sql .= ",\n\t PRIMARY KEY (" . implode(', ', $table_data['PRIMARY_KEY']) . ')';
|
---|
452 | break;
|
---|
453 |
|
---|
454 | case 'firebird':
|
---|
455 | case 'mssql':
|
---|
456 | // We need the data here
|
---|
457 | $old_return_statements = $this->return_statements;
|
---|
458 | $this->return_statements = true;
|
---|
459 |
|
---|
460 | $primary_key_stmts = $this->sql_create_primary_key($table_name, $table_data['PRIMARY_KEY']);
|
---|
461 | foreach ($primary_key_stmts as $pk_stmt)
|
---|
462 | {
|
---|
463 | $statements[] = $pk_stmt;
|
---|
464 | }
|
---|
465 |
|
---|
466 | $this->return_statements = $old_return_statements;
|
---|
467 | break;
|
---|
468 |
|
---|
469 | case 'oracle':
|
---|
470 | $table_sql .= ",\n\t CONSTRAINT pk_{$table_name} PRIMARY KEY (" . implode(', ', $table_data['PRIMARY_KEY']) . ')';
|
---|
471 | break;
|
---|
472 | }
|
---|
473 | }
|
---|
474 | }
|
---|
475 |
|
---|
476 | // close the table
|
---|
477 | switch ($this->sql_layer)
|
---|
478 | {
|
---|
479 | case 'mysql_41':
|
---|
480 | // make sure the table is in UTF-8 mode
|
---|
481 | $table_sql .= "\n) CHARACTER SET `utf8` COLLATE `utf8_bin`;";
|
---|
482 | $statements[] = $table_sql;
|
---|
483 | break;
|
---|
484 |
|
---|
485 | case 'mysql_40':
|
---|
486 | case 'sqlite':
|
---|
487 | $table_sql .= "\n);";
|
---|
488 | $statements[] = $table_sql;
|
---|
489 | break;
|
---|
490 |
|
---|
491 | case 'postgres':
|
---|
492 | // do we need to add a sequence for auto incrementing columns?
|
---|
493 | if ($create_sequence)
|
---|
494 | {
|
---|
495 | $statements[] = "CREATE SEQUENCE {$table_name}_seq;";
|
---|
496 | }
|
---|
497 |
|
---|
498 | $table_sql .= "\n);";
|
---|
499 | $statements[] = $table_sql;
|
---|
500 | break;
|
---|
501 |
|
---|
502 | case 'oracle':
|
---|
503 | $table_sql .= "\n);";
|
---|
504 | $statements[] = $table_sql;
|
---|
505 |
|
---|
506 | // do we need to add a sequence and a tigger for auto incrementing columns?
|
---|
507 | if ($create_sequence)
|
---|
508 | {
|
---|
509 | // create the actual sequence
|
---|
510 | $statements[] = "CREATE SEQUENCE {$table_name}_seq";
|
---|
511 |
|
---|
512 | // the trigger is the mechanism by which we increment the counter
|
---|
513 | $trigger = "CREATE OR REPLACE TRIGGER t_{$table_name}\n";
|
---|
514 | $trigger .= "BEFORE INSERT ON {$table_name}\n";
|
---|
515 | $trigger .= "FOR EACH ROW WHEN (\n";
|
---|
516 | $trigger .= "\tnew.{$create_sequence} IS NULL OR new.{$create_sequence} = 0\n";
|
---|
517 | $trigger .= ")\n";
|
---|
518 | $trigger .= "BEGIN\n";
|
---|
519 | $trigger .= "\tSELECT {$table_name}_seq.nextval\n";
|
---|
520 | $trigger .= "\tINTO :new.{$create_sequence}\n";
|
---|
521 | $trigger .= "\tFROM dual\n";
|
---|
522 | $trigger .= "END;";
|
---|
523 |
|
---|
524 | $statements[] = $trigger;
|
---|
525 | }
|
---|
526 | break;
|
---|
527 |
|
---|
528 | case 'firebird':
|
---|
529 | if ($create_sequence)
|
---|
530 | {
|
---|
531 | $statements[] = "CREATE SEQUENCE {$table_name}_seq;";
|
---|
532 | }
|
---|
533 | break;
|
---|
534 | }
|
---|
535 |
|
---|
536 | // Write Keys
|
---|
537 | if (isset($table_data['KEYS']))
|
---|
538 | {
|
---|
539 | foreach ($table_data['KEYS'] as $key_name => $key_data)
|
---|
540 | {
|
---|
541 | if (!is_array($key_data[1]))
|
---|
542 | {
|
---|
543 | $key_data[1] = array($key_data[1]);
|
---|
544 | }
|
---|
545 |
|
---|
546 | $old_return_statements = $this->return_statements;
|
---|
547 | $this->return_statements = true;
|
---|
548 |
|
---|
549 | $key_stmts = ($key_data[0] == 'UNIQUE') ? $this->sql_create_unique_index($table_name, $key_name, $key_data[1]) : $this->sql_create_index($table_name, $key_name, $key_data[1]);
|
---|
550 |
|
---|
551 | foreach ($key_stmts as $key_stmt)
|
---|
552 | {
|
---|
553 | $statements[] = $key_stmt;
|
---|
554 | }
|
---|
555 |
|
---|
556 | $this->return_statements = $old_return_statements;
|
---|
557 | }
|
---|
558 | }
|
---|
559 |
|
---|
560 | // Commit Transaction
|
---|
561 | $statements[] = 'commit';
|
---|
562 |
|
---|
563 | return $this->_sql_run_sql($statements);
|
---|
564 | }
|
---|
565 |
|
---|
566 | /**
|
---|
567 | * Handle passed database update array.
|
---|
568 | * Expected structure...
|
---|
569 | * Key being one of the following
|
---|
570 | * change_columns: Column changes (only type, not name)
|
---|
571 | * add_columns: Add columns to a table
|
---|
572 | * drop_keys: Dropping keys
|
---|
573 | * drop_columns: Removing/Dropping columns
|
---|
574 | * add_primary_keys: adding primary keys
|
---|
575 | * add_unique_index: adding an unique index
|
---|
576 | * add_index: adding an index
|
---|
577 | *
|
---|
578 | * The values are in this format:
|
---|
579 | * {TABLE NAME} => array(
|
---|
580 | * {COLUMN NAME} => array({COLUMN TYPE}, {DEFAULT VALUE}, {OPTIONAL VARIABLES}),
|
---|
581 | * {KEY/INDEX NAME} => array({COLUMN NAMES}),
|
---|
582 | * )
|
---|
583 | *
|
---|
584 | * For more information have a look at /develop/create_schema_files.php (only available through SVN)
|
---|
585 | */
|
---|
586 | function perform_schema_changes($schema_changes)
|
---|
587 | {
|
---|
588 | if (empty($schema_changes))
|
---|
589 | {
|
---|
590 | return;
|
---|
591 | }
|
---|
592 |
|
---|
593 | $statements = array();
|
---|
594 | $sqlite = false;
|
---|
595 |
|
---|
596 | // For SQLite we need to perform the schema changes in a much more different way
|
---|
597 | if ($this->db->sql_layer == 'sqlite' && $this->return_statements)
|
---|
598 | {
|
---|
599 | $sqlite_data = array();
|
---|
600 | $sqlite = true;
|
---|
601 | }
|
---|
602 |
|
---|
603 | // Change columns?
|
---|
604 | if (!empty($schema_changes['change_columns']))
|
---|
605 | {
|
---|
606 | foreach ($schema_changes['change_columns'] as $table => $columns)
|
---|
607 | {
|
---|
608 | foreach ($columns as $column_name => $column_data)
|
---|
609 | {
|
---|
610 | // If the column exists we change it, else we add it ;)
|
---|
611 | if ($column_exists = $this->sql_column_exists($table, $column_name))
|
---|
612 | {
|
---|
613 | $result = $this->sql_column_change($table, $column_name, $column_data, true);
|
---|
614 | }
|
---|
615 | else
|
---|
616 | {
|
---|
617 | $result = $this->sql_column_add($table, $column_name, $column_data, true);
|
---|
618 | }
|
---|
619 |
|
---|
620 | if ($sqlite)
|
---|
621 | {
|
---|
622 | if ($column_exists)
|
---|
623 | {
|
---|
624 | $sqlite_data[$table]['change_columns'][] = $result;
|
---|
625 | }
|
---|
626 | else
|
---|
627 | {
|
---|
628 | $sqlite_data[$table]['add_columns'][] = $result;
|
---|
629 | }
|
---|
630 | }
|
---|
631 | else if ($this->return_statements)
|
---|
632 | {
|
---|
633 | $statements = array_merge($statements, $result);
|
---|
634 | }
|
---|
635 | }
|
---|
636 | }
|
---|
637 | }
|
---|
638 |
|
---|
639 | // Add columns?
|
---|
640 | if (!empty($schema_changes['add_columns']))
|
---|
641 | {
|
---|
642 | foreach ($schema_changes['add_columns'] as $table => $columns)
|
---|
643 | {
|
---|
644 | foreach ($columns as $column_name => $column_data)
|
---|
645 | {
|
---|
646 | // Only add the column if it does not exist yet, else change it (to be consistent)
|
---|
647 | if ($column_exists = $this->sql_column_exists($table, $column_name))
|
---|
648 | {
|
---|
649 | $result = $this->sql_column_change($table, $column_name, $column_data, true);
|
---|
650 | }
|
---|
651 | else
|
---|
652 | {
|
---|
653 | $result = $this->sql_column_add($table, $column_name, $column_data, true);
|
---|
654 | }
|
---|
655 |
|
---|
656 | if ($sqlite)
|
---|
657 | {
|
---|
658 | if ($column_exists)
|
---|
659 | {
|
---|
660 | $sqlite_data[$table]['change_columns'][] = $result;
|
---|
661 | }
|
---|
662 | else
|
---|
663 | {
|
---|
664 | $sqlite_data[$table]['add_columns'][] = $result;
|
---|
665 | }
|
---|
666 | }
|
---|
667 | else if ($this->return_statements)
|
---|
668 | {
|
---|
669 | $statements = array_merge($statements, $result);
|
---|
670 | }
|
---|
671 | }
|
---|
672 | }
|
---|
673 | }
|
---|
674 |
|
---|
675 | // Remove keys?
|
---|
676 | if (!empty($schema_changes['drop_keys']))
|
---|
677 | {
|
---|
678 | foreach ($schema_changes['drop_keys'] as $table => $indexes)
|
---|
679 | {
|
---|
680 | foreach ($indexes as $index_name)
|
---|
681 | {
|
---|
682 | $result = $this->sql_index_drop($table, $index_name);
|
---|
683 |
|
---|
684 | if ($this->return_statements)
|
---|
685 | {
|
---|
686 | $statements = array_merge($statements, $result);
|
---|
687 | }
|
---|
688 | }
|
---|
689 | }
|
---|
690 | }
|
---|
691 |
|
---|
692 | // Drop columns?
|
---|
693 | if (!empty($schema_changes['drop_columns']))
|
---|
694 | {
|
---|
695 | foreach ($schema_changes['drop_columns'] as $table => $columns)
|
---|
696 | {
|
---|
697 | foreach ($columns as $column)
|
---|
698 | {
|
---|
699 | // Only remove the column if it exists...
|
---|
700 | if ($this->sql_column_exists($table, $column))
|
---|
701 | {
|
---|
702 | $result = $this->sql_column_remove($table, $column, true);
|
---|
703 |
|
---|
704 | if ($sqlite)
|
---|
705 | {
|
---|
706 | $sqlite_data[$table]['drop_columns'][] = $result;
|
---|
707 | }
|
---|
708 | else if ($this->return_statements)
|
---|
709 | {
|
---|
710 | $statements = array_merge($statements, $result);
|
---|
711 | }
|
---|
712 | }
|
---|
713 | }
|
---|
714 | }
|
---|
715 | }
|
---|
716 |
|
---|
717 | // Add primary keys?
|
---|
718 | if (!empty($schema_changes['add_primary_keys']))
|
---|
719 | {
|
---|
720 | foreach ($schema_changes['add_primary_keys'] as $table => $columns)
|
---|
721 | {
|
---|
722 | $result = $this->sql_create_primary_key($table, $columns, true);
|
---|
723 |
|
---|
724 | if ($sqlite)
|
---|
725 | {
|
---|
726 | $sqlite_data[$table]['primary_key'] = $result;
|
---|
727 | }
|
---|
728 | else if ($this->return_statements)
|
---|
729 | {
|
---|
730 | $statements = array_merge($statements, $result);
|
---|
731 | }
|
---|
732 | }
|
---|
733 | }
|
---|
734 |
|
---|
735 | // Add unqiue indexes?
|
---|
736 | if (!empty($schema_changes['add_unique_index']))
|
---|
737 | {
|
---|
738 | foreach ($schema_changes['add_unique_index'] as $table => $index_array)
|
---|
739 | {
|
---|
740 | foreach ($index_array as $index_name => $column)
|
---|
741 | {
|
---|
742 | $result = $this->sql_create_unique_index($table, $index_name, $column);
|
---|
743 |
|
---|
744 | if ($this->return_statements)
|
---|
745 | {
|
---|
746 | $statements = array_merge($statements, $result);
|
---|
747 | }
|
---|
748 | }
|
---|
749 | }
|
---|
750 | }
|
---|
751 |
|
---|
752 | // Add indexes?
|
---|
753 | if (!empty($schema_changes['add_index']))
|
---|
754 | {
|
---|
755 | foreach ($schema_changes['add_index'] as $table => $index_array)
|
---|
756 | {
|
---|
757 | foreach ($index_array as $index_name => $column)
|
---|
758 | {
|
---|
759 | $result = $this->sql_create_index($table, $index_name, $column);
|
---|
760 |
|
---|
761 | if ($this->return_statements)
|
---|
762 | {
|
---|
763 | $statements = array_merge($statements, $result);
|
---|
764 | }
|
---|
765 | }
|
---|
766 | }
|
---|
767 | }
|
---|
768 |
|
---|
769 | if ($sqlite)
|
---|
770 | {
|
---|
771 | foreach ($sqlite_data as $table_name => $sql_schema_changes)
|
---|
772 | {
|
---|
773 | // Create temporary table with original data
|
---|
774 | $statements[] = 'begin';
|
---|
775 |
|
---|
776 | $sql = "SELECT sql
|
---|
777 | FROM sqlite_master
|
---|
778 | WHERE type = 'table'
|
---|
779 | AND name = '{$table_name}'
|
---|
780 | ORDER BY type DESC, name;";
|
---|
781 | $result = $this->db->sql_query($sql);
|
---|
782 |
|
---|
783 | if (!$result)
|
---|
784 | {
|
---|
785 | continue;
|
---|
786 | }
|
---|
787 |
|
---|
788 | $row = $this->db->sql_fetchrow($result);
|
---|
789 | $this->db->sql_freeresult($result);
|
---|
790 |
|
---|
791 | // Create a backup table and populate it, destroy the existing one
|
---|
792 | $statements[] = preg_replace('#CREATE\s+TABLE\s+"?' . $table_name . '"?#i', 'CREATE TEMPORARY TABLE ' . $table_name . '_temp', $row['sql']);
|
---|
793 | $statements[] = 'INSERT INTO ' . $table_name . '_temp SELECT * FROM ' . $table_name;
|
---|
794 | $statements[] = 'DROP TABLE ' . $table_name;
|
---|
795 |
|
---|
796 | // Get the columns...
|
---|
797 | preg_match('#\((.*)\)#s', $row['sql'], $matches);
|
---|
798 |
|
---|
799 | $plain_table_cols = trim($matches[1]);
|
---|
800 | $new_table_cols = preg_split('/,(?![\s\w]+\))/m', $plain_table_cols);
|
---|
801 | $column_list = array();
|
---|
802 |
|
---|
803 | foreach ($new_table_cols as $declaration)
|
---|
804 | {
|
---|
805 | $entities = preg_split('#\s+#', trim($declaration));
|
---|
806 | if ($entities[0] == 'PRIMARY')
|
---|
807 | {
|
---|
808 | continue;
|
---|
809 | }
|
---|
810 | $column_list[] = $entities[0];
|
---|
811 | }
|
---|
812 |
|
---|
813 | // note down the primary key notation because sqlite only supports adding it to the end for the new table
|
---|
814 | $primary_key = false;
|
---|
815 | $_new_cols = array();
|
---|
816 |
|
---|
817 | foreach ($new_table_cols as $key => $declaration)
|
---|
818 | {
|
---|
819 | $entities = preg_split('#\s+#', trim($declaration));
|
---|
820 | if ($entities[0] == 'PRIMARY')
|
---|
821 | {
|
---|
822 | $primary_key = $declaration;
|
---|
823 | continue;
|
---|
824 | }
|
---|
825 | $_new_cols[] = $declaration;
|
---|
826 | }
|
---|
827 |
|
---|
828 | $new_table_cols = $_new_cols;
|
---|
829 |
|
---|
830 | // First of all... change columns
|
---|
831 | if (!empty($sql_schema_changes['change_columns']))
|
---|
832 | {
|
---|
833 | foreach ($sql_schema_changes['change_columns'] as $column_sql)
|
---|
834 | {
|
---|
835 | foreach ($new_table_cols as $key => $declaration)
|
---|
836 | {
|
---|
837 | $entities = preg_split('#\s+#', trim($declaration));
|
---|
838 | if (strpos($column_sql, $entities[0] . ' ') === 0)
|
---|
839 | {
|
---|
840 | $new_table_cols[$key] = $column_sql;
|
---|
841 | }
|
---|
842 | }
|
---|
843 | }
|
---|
844 | }
|
---|
845 |
|
---|
846 | if (!empty($sql_schema_changes['add_columns']))
|
---|
847 | {
|
---|
848 | foreach ($sql_schema_changes['add_columns'] as $column_sql)
|
---|
849 | {
|
---|
850 | $new_table_cols[] = $column_sql;
|
---|
851 | }
|
---|
852 | }
|
---|
853 |
|
---|
854 | // Now drop them...
|
---|
855 | if (!empty($sql_schema_changes['drop_columns']))
|
---|
856 | {
|
---|
857 | foreach ($sql_schema_changes['drop_columns'] as $column_name)
|
---|
858 | {
|
---|
859 | // Remove from column list...
|
---|
860 | $new_column_list = array();
|
---|
861 | foreach ($column_list as $key => $value)
|
---|
862 | {
|
---|
863 | if ($value === $column_name)
|
---|
864 | {
|
---|
865 | continue;
|
---|
866 | }
|
---|
867 |
|
---|
868 | $new_column_list[] = $value;
|
---|
869 | }
|
---|
870 |
|
---|
871 | $column_list = $new_column_list;
|
---|
872 |
|
---|
873 | // Remove from table...
|
---|
874 | $_new_cols = array();
|
---|
875 | foreach ($new_table_cols as $key => $declaration)
|
---|
876 | {
|
---|
877 | $entities = preg_split('#\s+#', trim($declaration));
|
---|
878 | if (strpos($column_name . ' ', $entities[0] . ' ') === 0)
|
---|
879 | {
|
---|
880 | continue;
|
---|
881 | }
|
---|
882 | $_new_cols[] = $declaration;
|
---|
883 | }
|
---|
884 | $new_table_cols = $_new_cols;
|
---|
885 | }
|
---|
886 | }
|
---|
887 |
|
---|
888 | // Primary key...
|
---|
889 | if (!empty($sql_schema_changes['primary_key']))
|
---|
890 | {
|
---|
891 | $new_table_cols[] = 'PRIMARY KEY (' . implode(', ', $sql_schema_changes['primary_key']) . ')';
|
---|
892 | }
|
---|
893 | // Add a new one or the old primary key
|
---|
894 | else if ($primary_key !== false)
|
---|
895 | {
|
---|
896 | $new_table_cols[] = $primary_key;
|
---|
897 | }
|
---|
898 |
|
---|
899 | $columns = implode(',', $column_list);
|
---|
900 |
|
---|
901 | // create a new table and fill it up. destroy the temp one
|
---|
902 | $statements[] = 'CREATE TABLE ' . $table_name . ' (' . implode(',', $new_table_cols) . ');';
|
---|
903 | $statements[] = 'INSERT INTO ' . $table_name . ' (' . $columns . ') SELECT ' . $columns . ' FROM ' . $table_name . '_temp;';
|
---|
904 | $statements[] = 'DROP TABLE ' . $table_name . '_temp';
|
---|
905 |
|
---|
906 | $statements[] = 'commit';
|
---|
907 | }
|
---|
908 | }
|
---|
909 |
|
---|
910 | if ($this->return_statements)
|
---|
911 | {
|
---|
912 | return $statements;
|
---|
913 | }
|
---|
914 | }
|
---|
915 |
|
---|
916 | /**
|
---|
917 | * Check if a specified column exist
|
---|
918 | *
|
---|
919 | * @param string $table Table to check the column at
|
---|
920 | * @param string $column_name The column to check
|
---|
921 | *
|
---|
922 | * @return bool True if column exists, else false
|
---|
923 | */
|
---|
924 | function sql_column_exists($table, $column_name)
|
---|
925 | {
|
---|
926 | switch ($this->sql_layer)
|
---|
927 | {
|
---|
928 | case 'mysql_40':
|
---|
929 | case 'mysql_41':
|
---|
930 |
|
---|
931 | $sql = "SHOW COLUMNS FROM $table";
|
---|
932 | $result = $this->db->sql_query($sql);
|
---|
933 |
|
---|
934 | while ($row = $this->db->sql_fetchrow($result))
|
---|
935 | {
|
---|
936 | // lower case just in case
|
---|
937 | if (strtolower($row['Field']) == $column_name)
|
---|
938 | {
|
---|
939 | $this->db->sql_freeresult($result);
|
---|
940 | return true;
|
---|
941 | }
|
---|
942 | }
|
---|
943 | $this->db->sql_freeresult($result);
|
---|
944 | return false;
|
---|
945 | break;
|
---|
946 |
|
---|
947 | // PostgreSQL has a way of doing this in a much simpler way but would
|
---|
948 | // not allow us to support all versions of PostgreSQL
|
---|
949 | case 'postgres':
|
---|
950 | $sql = "SELECT a.attname
|
---|
951 | FROM pg_class c, pg_attribute a
|
---|
952 | WHERE c.relname = '{$table}'
|
---|
953 | AND a.attnum > 0
|
---|
954 | AND a.attrelid = c.oid";
|
---|
955 | $result = $this->db->sql_query($sql);
|
---|
956 | while ($row = $this->db->sql_fetchrow($result))
|
---|
957 | {
|
---|
958 | // lower case just in case
|
---|
959 | if (strtolower($row['attname']) == $column_name)
|
---|
960 | {
|
---|
961 | $this->db->sql_freeresult($result);
|
---|
962 | return true;
|
---|
963 | }
|
---|
964 | }
|
---|
965 | $this->db->sql_freeresult($result);
|
---|
966 |
|
---|
967 | return false;
|
---|
968 | break;
|
---|
969 |
|
---|
970 | // same deal with PostgreSQL, we must perform more complex operations than
|
---|
971 | // we technically could
|
---|
972 | case 'mssql':
|
---|
973 | $sql = "SELECT c.name
|
---|
974 | FROM syscolumns c
|
---|
975 | LEFT JOIN sysobjects o ON c.id = o.id
|
---|
976 | WHERE o.name = '{$table}'";
|
---|
977 | $result = $this->db->sql_query($sql);
|
---|
978 | while ($row = $this->db->sql_fetchrow($result))
|
---|
979 | {
|
---|
980 | // lower case just in case
|
---|
981 | if (strtolower($row['name']) == $column_name)
|
---|
982 | {
|
---|
983 | $this->db->sql_freeresult($result);
|
---|
984 | return true;
|
---|
985 | }
|
---|
986 | }
|
---|
987 | $this->db->sql_freeresult($result);
|
---|
988 | return false;
|
---|
989 | break;
|
---|
990 |
|
---|
991 | case 'oracle':
|
---|
992 | $sql = "SELECT column_name
|
---|
993 | FROM user_tab_columns
|
---|
994 | WHERE LOWER(table_name) = '" . strtolower($table) . "'";
|
---|
995 | $result = $this->db->sql_query($sql);
|
---|
996 | while ($row = $this->db->sql_fetchrow($result))
|
---|
997 | {
|
---|
998 | // lower case just in case
|
---|
999 | if (strtolower($row['column_name']) == $column_name)
|
---|
1000 | {
|
---|
1001 | $this->db->sql_freeresult($result);
|
---|
1002 | return true;
|
---|
1003 | }
|
---|
1004 | }
|
---|
1005 | $this->db->sql_freeresult($result);
|
---|
1006 | return false;
|
---|
1007 | break;
|
---|
1008 |
|
---|
1009 | case 'firebird':
|
---|
1010 | $sql = "SELECT RDB\$FIELD_NAME as FNAME
|
---|
1011 | FROM RDB\$RELATION_FIELDS
|
---|
1012 | WHERE RDB\$RELATION_NAME = '" . strtoupper($table) . "'";
|
---|
1013 | $result = $this->db->sql_query($sql);
|
---|
1014 | while ($row = $this->db->sql_fetchrow($result))
|
---|
1015 | {
|
---|
1016 | // lower case just in case
|
---|
1017 | if (strtolower($row['fname']) == $column_name)
|
---|
1018 | {
|
---|
1019 | $this->db->sql_freeresult($result);
|
---|
1020 | return true;
|
---|
1021 | }
|
---|
1022 | }
|
---|
1023 | $this->db->sql_freeresult($result);
|
---|
1024 | return false;
|
---|
1025 | break;
|
---|
1026 |
|
---|
1027 | // ugh, SQLite
|
---|
1028 | case 'sqlite':
|
---|
1029 | $sql = "SELECT sql
|
---|
1030 | FROM sqlite_master
|
---|
1031 | WHERE type = 'table'
|
---|
1032 | AND name = '{$table}'";
|
---|
1033 | $result = $this->db->sql_query($sql);
|
---|
1034 |
|
---|
1035 | if (!$result)
|
---|
1036 | {
|
---|
1037 | return false;
|
---|
1038 | }
|
---|
1039 |
|
---|
1040 | $row = $this->db->sql_fetchrow($result);
|
---|
1041 | $this->db->sql_freeresult($result);
|
---|
1042 |
|
---|
1043 | preg_match('#\((.*)\)#s', $row['sql'], $matches);
|
---|
1044 |
|
---|
1045 | $cols = trim($matches[1]);
|
---|
1046 | $col_array = preg_split('/,(?![\s\w]+\))/m', $cols);
|
---|
1047 |
|
---|
1048 | foreach ($col_array as $declaration)
|
---|
1049 | {
|
---|
1050 | $entities = preg_split('#\s+#', trim($declaration));
|
---|
1051 | if ($entities[0] == 'PRIMARY')
|
---|
1052 | {
|
---|
1053 | continue;
|
---|
1054 | }
|
---|
1055 |
|
---|
1056 | if (strtolower($entities[0]) == $column_name)
|
---|
1057 | {
|
---|
1058 | return true;
|
---|
1059 | }
|
---|
1060 | }
|
---|
1061 | return false;
|
---|
1062 | break;
|
---|
1063 | }
|
---|
1064 | }
|
---|
1065 |
|
---|
1066 | /**
|
---|
1067 | * Private method for performing sql statements (either execute them or return them)
|
---|
1068 | * @access private
|
---|
1069 | */
|
---|
1070 | function _sql_run_sql($statements)
|
---|
1071 | {
|
---|
1072 | if ($this->return_statements)
|
---|
1073 | {
|
---|
1074 | return $statements;
|
---|
1075 | }
|
---|
1076 |
|
---|
1077 | // We could add error handling here...
|
---|
1078 | foreach ($statements as $sql)
|
---|
1079 | {
|
---|
1080 | if ($sql === 'begin')
|
---|
1081 | {
|
---|
1082 | $this->db->sql_transaction('begin');
|
---|
1083 | }
|
---|
1084 | else if ($sql === 'commit')
|
---|
1085 | {
|
---|
1086 | $this->db->sql_transaction('commit');
|
---|
1087 | }
|
---|
1088 | else
|
---|
1089 | {
|
---|
1090 | $this->db->sql_query($sql);
|
---|
1091 | }
|
---|
1092 | }
|
---|
1093 |
|
---|
1094 | return true;
|
---|
1095 | }
|
---|
1096 |
|
---|
1097 | /**
|
---|
1098 | * Function to prepare some column information for better usage
|
---|
1099 | * @access private
|
---|
1100 | */
|
---|
1101 | function sql_prepare_column_data($table_name, $column_name, $column_data)
|
---|
1102 | {
|
---|
1103 | // Get type
|
---|
1104 | if (strpos($column_data[0], ':') !== false)
|
---|
1105 | {
|
---|
1106 | list($orig_column_type, $column_length) = explode(':', $column_data[0]);
|
---|
1107 | if (!is_array($this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']))
|
---|
1108 | {
|
---|
1109 | $column_type = sprintf($this->dbms_type_map[$this->sql_layer][$orig_column_type . ':'], $column_length);
|
---|
1110 | }
|
---|
1111 | else
|
---|
1112 | {
|
---|
1113 | if (isset($this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']['rule']))
|
---|
1114 | {
|
---|
1115 | switch ($this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']['rule'][0])
|
---|
1116 | {
|
---|
1117 | case 'div':
|
---|
1118 | $column_length /= $this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']['rule'][1];
|
---|
1119 | $column_length = ceil($column_length);
|
---|
1120 | $column_type = sprintf($this->dbms_type_map[$this->sql_layer][$orig_column_type . ':'][0], $column_length);
|
---|
1121 | break;
|
---|
1122 | }
|
---|
1123 | }
|
---|
1124 |
|
---|
1125 | if (isset($this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']['limit']))
|
---|
1126 | {
|
---|
1127 | switch ($this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']['limit'][0])
|
---|
1128 | {
|
---|
1129 | case 'mult':
|
---|
1130 | $column_length *= $this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']['limit'][1];
|
---|
1131 | if ($column_length > $this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']['limit'][2])
|
---|
1132 | {
|
---|
1133 | $column_type = $this->dbms_type_map[$this->sql_layer][$orig_column_type . ':']['limit'][3];
|
---|
1134 | }
|
---|
1135 | else
|
---|
1136 | {
|
---|
1137 | $column_type = sprintf($this->dbms_type_map[$this->sql_layer][$orig_column_type . ':'][0], $column_length);
|
---|
1138 | }
|
---|
1139 | break;
|
---|
1140 | }
|
---|
1141 | }
|
---|
1142 | }
|
---|
1143 | $orig_column_type .= ':';
|
---|
1144 | }
|
---|
1145 | else
|
---|
1146 | {
|
---|
1147 | $orig_column_type = $column_data[0];
|
---|
1148 | $column_type = $this->dbms_type_map[$this->sql_layer][$column_data[0]];
|
---|
1149 | }
|
---|
1150 |
|
---|
1151 | // Adjust default value if db-dependant specified
|
---|
1152 | if (is_array($column_data[1]))
|
---|
1153 | {
|
---|
1154 | $column_data[1] = (isset($column_data[1][$this->sql_layer])) ? $column_data[1][$this->sql_layer] : $column_data[1]['default'];
|
---|
1155 | }
|
---|
1156 |
|
---|
1157 | $sql = '';
|
---|
1158 |
|
---|
1159 | $return_array = array();
|
---|
1160 |
|
---|
1161 | switch ($this->sql_layer)
|
---|
1162 | {
|
---|
1163 | case 'firebird':
|
---|
1164 | $sql .= " {$column_type} ";
|
---|
1165 | $return_array['column_type_sql_type'] = " {$column_type} ";
|
---|
1166 |
|
---|
1167 | if (!is_null($column_data[1]))
|
---|
1168 | {
|
---|
1169 | $sql .= 'DEFAULT ' . ((is_numeric($column_data[1])) ? $column_data[1] : "'{$column_data[1]}'") . ' ';
|
---|
1170 | $return_array['column_type_sql_default'] = ((is_numeric($column_data[1])) ? $column_data[1] : "'{$column_data[1]}'") . ' ';
|
---|
1171 | }
|
---|
1172 |
|
---|
1173 | $sql .= 'NOT NULL';
|
---|
1174 |
|
---|
1175 | // This is a UNICODE column and thus should be given it's fair share
|
---|
1176 | if (preg_match('/^X?STEXT_UNI|VCHAR_(CI|UNI:?)/', $column_data[0]))
|
---|
1177 | {
|
---|
1178 | $sql .= ' COLLATE UNICODE';
|
---|
1179 | }
|
---|
1180 |
|
---|
1181 | $return_array['auto_increment'] = false;
|
---|
1182 | if (isset($column_data[2]) && $column_data[2] == 'auto_increment')
|
---|
1183 | {
|
---|
1184 | $return_array['auto_increment'] = true;
|
---|
1185 | }
|
---|
1186 |
|
---|
1187 | break;
|
---|
1188 |
|
---|
1189 | case 'mssql':
|
---|
1190 | $sql .= " {$column_type} ";
|
---|
1191 | $sql_default = " {$column_type} ";
|
---|
1192 |
|
---|
1193 | // For adding columns we need the default definition
|
---|
1194 | if (!is_null($column_data[1]))
|
---|
1195 | {
|
---|
1196 | // For hexadecimal values do not use single quotes
|
---|
1197 | if (strpos($column_data[1], '0x') === 0)
|
---|
1198 | {
|
---|
1199 | $return_array['default'] = 'DEFAULT (' . $column_data[1] . ') ';
|
---|
1200 | $sql_default .= $return_array['default'];
|
---|
1201 | }
|
---|
1202 | else
|
---|
1203 | {
|
---|
1204 | $return_array['default'] = 'DEFAULT (' . ((is_numeric($column_data[1])) ? $column_data[1] : "'{$column_data[1]}'") . ') ';
|
---|
1205 | $sql_default .= $return_array['default'];
|
---|
1206 | }
|
---|
1207 | }
|
---|
1208 |
|
---|
1209 | if (isset($column_data[2]) && $column_data[2] == 'auto_increment')
|
---|
1210 | {
|
---|
1211 | // $sql .= 'IDENTITY (1, 1) ';
|
---|
1212 | $sql_default .= 'IDENTITY (1, 1) ';
|
---|
1213 | }
|
---|
1214 |
|
---|
1215 | $return_array['textimage'] = $column_type === '[text]';
|
---|
1216 |
|
---|
1217 | $sql .= 'NOT NULL';
|
---|
1218 | $sql_default .= 'NOT NULL';
|
---|
1219 |
|
---|
1220 | $return_array['column_type_sql_default'] = $sql_default;
|
---|
1221 |
|
---|
1222 | break;
|
---|
1223 |
|
---|
1224 | case 'mysql_40':
|
---|
1225 | case 'mysql_41':
|
---|
1226 | $sql .= " {$column_type} ";
|
---|
1227 |
|
---|
1228 | // For hexadecimal values do not use single quotes
|
---|
1229 | if (!is_null($column_data[1]) && substr($column_type, -4) !== 'text' && substr($column_type, -4) !== 'blob')
|
---|
1230 | {
|
---|
1231 | $sql .= (strpos($column_data[1], '0x') === 0) ? "DEFAULT {$column_data[1]} " : "DEFAULT '{$column_data[1]}' ";
|
---|
1232 | }
|
---|
1233 | $sql .= 'NOT NULL';
|
---|
1234 |
|
---|
1235 | if (isset($column_data[2]))
|
---|
1236 | {
|
---|
1237 | if ($column_data[2] == 'auto_increment')
|
---|
1238 | {
|
---|
1239 | $sql .= ' auto_increment';
|
---|
1240 | }
|
---|
1241 | else if ($this->sql_layer === 'mysql_41' && $column_data[2] == 'true_sort')
|
---|
1242 | {
|
---|
1243 | $sql .= ' COLLATE utf8_unicode_ci';
|
---|
1244 | }
|
---|
1245 | }
|
---|
1246 |
|
---|
1247 | break;
|
---|
1248 |
|
---|
1249 | case 'oracle':
|
---|
1250 | $sql .= " {$column_type} ";
|
---|
1251 | $sql .= (!is_null($column_data[1])) ? "DEFAULT '{$column_data[1]}' " : '';
|
---|
1252 |
|
---|
1253 | // In Oracle empty strings ('') are treated as NULL.
|
---|
1254 | // Therefore in oracle we allow NULL's for all DEFAULT '' entries
|
---|
1255 | // Oracle does not like setting NOT NULL on a column that is already NOT NULL (this happens only on number fields)
|
---|
1256 | if (!preg_match('/number/i', $column_type))
|
---|
1257 | {
|
---|
1258 | $sql .= ($column_data[1] === '') ? '' : 'NOT NULL';
|
---|
1259 | }
|
---|
1260 |
|
---|
1261 | $return_array['auto_increment'] = false;
|
---|
1262 | if (isset($column_data[2]) && $column_data[2] == 'auto_increment')
|
---|
1263 | {
|
---|
1264 | $return_array['auto_increment'] = true;
|
---|
1265 | }
|
---|
1266 |
|
---|
1267 | break;
|
---|
1268 |
|
---|
1269 | case 'postgres':
|
---|
1270 | $return_array['column_type'] = $column_type;
|
---|
1271 |
|
---|
1272 | $sql .= " {$column_type} ";
|
---|
1273 |
|
---|
1274 | $return_array['auto_increment'] = false;
|
---|
1275 | if (isset($column_data[2]) && $column_data[2] == 'auto_increment')
|
---|
1276 | {
|
---|
1277 | $default_val = "nextval('{$table_name}_seq')";
|
---|
1278 | $return_array['auto_increment'] = true;
|
---|
1279 | }
|
---|
1280 | else if (!is_null($column_data[1]))
|
---|
1281 | {
|
---|
1282 | $default_val = "'" . $column_data[1] . "'";
|
---|
1283 | $return_array['null'] = 'NOT NULL';
|
---|
1284 | $sql .= 'NOT NULL ';
|
---|
1285 | }
|
---|
1286 |
|
---|
1287 | $return_array['default'] = $default_val;
|
---|
1288 |
|
---|
1289 | $sql .= "DEFAULT {$default_val}";
|
---|
1290 |
|
---|
1291 | // Unsigned? Then add a CHECK contraint
|
---|
1292 | if (in_array($orig_column_type, $this->unsigned_types))
|
---|
1293 | {
|
---|
1294 | $return_array['constraint'] = "CHECK ({$column_name} >= 0)";
|
---|
1295 | $sql .= " CHECK ({$column_name} >= 0)";
|
---|
1296 | }
|
---|
1297 |
|
---|
1298 | break;
|
---|
1299 |
|
---|
1300 | case 'sqlite':
|
---|
1301 | $return_array['primary_key_set'] = false;
|
---|
1302 | if (isset($column_data[2]) && $column_data[2] == 'auto_increment')
|
---|
1303 | {
|
---|
1304 | $sql .= ' INTEGER PRIMARY KEY';
|
---|
1305 | $return_array['primary_key_set'] = true;
|
---|
1306 | }
|
---|
1307 | else
|
---|
1308 | {
|
---|
1309 | $sql .= ' ' . $column_type;
|
---|
1310 | }
|
---|
1311 |
|
---|
1312 | $sql .= ' NOT NULL ';
|
---|
1313 | $sql .= (!is_null($column_data[1])) ? "DEFAULT '{$column_data[1]}'" : '';
|
---|
1314 |
|
---|
1315 | break;
|
---|
1316 | }
|
---|
1317 |
|
---|
1318 | $return_array['column_type_sql'] = $sql;
|
---|
1319 |
|
---|
1320 | return $return_array;
|
---|
1321 | }
|
---|
1322 |
|
---|
1323 | /**
|
---|
1324 | * Add new column
|
---|
1325 | */
|
---|
1326 | function sql_column_add($table_name, $column_name, $column_data, $inline = false)
|
---|
1327 | {
|
---|
1328 | $column_data = $this->sql_prepare_column_data($table_name, $column_name, $column_data);
|
---|
1329 | $statements = array();
|
---|
1330 |
|
---|
1331 | switch ($this->sql_layer)
|
---|
1332 | {
|
---|
1333 | case 'firebird':
|
---|
1334 | $statements[] = 'ALTER TABLE ' . $table_name . ' ADD "' . strtoupper($column_name) . '" ' . $column_data['column_type_sql'];
|
---|
1335 | break;
|
---|
1336 |
|
---|
1337 | case 'mssql':
|
---|
1338 | $statements[] = 'ALTER TABLE [' . $table_name . '] ADD [' . $column_name . '] ' . $column_data['column_type_sql_default'];
|
---|
1339 | break;
|
---|
1340 |
|
---|
1341 | case 'mysql_40':
|
---|
1342 | case 'mysql_41':
|
---|
1343 | $statements[] = 'ALTER TABLE `' . $table_name . '` ADD COLUMN `' . $column_name . '` ' . $column_data['column_type_sql'];
|
---|
1344 | break;
|
---|
1345 |
|
---|
1346 | case 'oracle':
|
---|
1347 | $statements[] = 'ALTER TABLE ' . $table_name . ' ADD ' . $column_name . ' ' . $column_data['column_type_sql'];
|
---|
1348 | break;
|
---|
1349 |
|
---|
1350 | case 'postgres':
|
---|
1351 | if (version_compare($this->db->sql_server_info(true), '8.0', '>='))
|
---|
1352 | {
|
---|
1353 | $statements[] = 'ALTER TABLE ' . $table_name . ' ADD COLUMN "' . $column_name . '" ' . $column_data['column_type_sql'];
|
---|
1354 | }
|
---|
1355 | else
|
---|
1356 | {
|
---|
1357 | // old versions cannot add columns with default and null information
|
---|
1358 | $statements[] = 'ALTER TABLE ' . $table_name . ' ADD COLUMN "' . $column_name . '" ' . $column_data['column_type'] . ' ' . $column_data['constraint'];
|
---|
1359 |
|
---|
1360 | if (isset($column_data['null']))
|
---|
1361 | {
|
---|
1362 | if ($column_data['null'] == 'NOT NULL')
|
---|
1363 | {
|
---|
1364 | $statements[] = 'ALTER TABLE ' . $table_name . ' ALTER COLUMN ' . $column_name . ' SET NOT NULL';
|
---|
1365 | }
|
---|
1366 | }
|
---|
1367 |
|
---|
1368 | if (isset($column_data['default']))
|
---|
1369 | {
|
---|
1370 | $statements[] = 'ALTER TABLE ' . $table_name . ' ALTER COLUMN ' . $column_name . ' SET DEFAULT ' . $column_data['default'];
|
---|
1371 | }
|
---|
1372 | }
|
---|
1373 |
|
---|
1374 | break;
|
---|
1375 |
|
---|
1376 | case 'sqlite':
|
---|
1377 |
|
---|
1378 | if ($inline && $this->return_statements)
|
---|
1379 | {
|
---|
1380 | return $column_name . ' ' . $column_data['column_type_sql'];
|
---|
1381 | }
|
---|
1382 |
|
---|
1383 | if (version_compare(sqlite_libversion(), '3.0') == -1)
|
---|
1384 | {
|
---|
1385 | $sql = "SELECT sql
|
---|
1386 | FROM sqlite_master
|
---|
1387 | WHERE type = 'table'
|
---|
1388 | AND name = '{$table_name}'
|
---|
1389 | ORDER BY type DESC, name;";
|
---|
1390 | $result = $this->db->sql_query($sql);
|
---|
1391 |
|
---|
1392 | if (!$result)
|
---|
1393 | {
|
---|
1394 | break;
|
---|
1395 | }
|
---|
1396 |
|
---|
1397 | $row = $this->db->sql_fetchrow($result);
|
---|
1398 | $this->db->sql_freeresult($result);
|
---|
1399 |
|
---|
1400 | $statements[] = 'begin';
|
---|
1401 |
|
---|
1402 | // Create a backup table and populate it, destroy the existing one
|
---|
1403 | $statements[] = preg_replace('#CREATE\s+TABLE\s+"?' . $table_name . '"?#i', 'CREATE TEMPORARY TABLE ' . $table_name . '_temp', $row['sql']);
|
---|
1404 | $statements[] = 'INSERT INTO ' . $table_name . '_temp SELECT * FROM ' . $table_name;
|
---|
1405 | $statements[] = 'DROP TABLE ' . $table_name;
|
---|
1406 |
|
---|
1407 | preg_match('#\((.*)\)#s', $row['sql'], $matches);
|
---|
1408 |
|
---|
1409 | $new_table_cols = trim($matches[1]);
|
---|
1410 | $old_table_cols = preg_split('/,(?![\s\w]+\))/m', $new_table_cols);
|
---|
1411 | $column_list = array();
|
---|
1412 |
|
---|
1413 | foreach ($old_table_cols as $declaration)
|
---|
1414 | {
|
---|
1415 | $entities = preg_split('#\s+#', trim($declaration));
|
---|
1416 | if ($entities[0] == 'PRIMARY')
|
---|
1417 | {
|
---|
1418 | continue;
|
---|
1419 | }
|
---|
1420 | $column_list[] = $entities[0];
|
---|
1421 | }
|
---|
1422 |
|
---|
1423 | $columns = implode(',', $column_list);
|
---|
1424 |
|
---|
1425 | $new_table_cols = $column_name . ' ' . $column_data['column_type_sql'] . ',' . $new_table_cols;
|
---|
1426 |
|
---|
1427 | // create a new table and fill it up. destroy the temp one
|
---|
1428 | $statements[] = 'CREATE TABLE ' . $table_name . ' (' . $new_table_cols . ');';
|
---|
1429 | $statements[] = 'INSERT INTO ' . $table_name . ' (' . $columns . ') SELECT ' . $columns . ' FROM ' . $table_name . '_temp;';
|
---|
1430 | $statements[] = 'DROP TABLE ' . $table_name . '_temp';
|
---|
1431 |
|
---|
1432 | $statements[] = 'commit';
|
---|
1433 | }
|
---|
1434 | else
|
---|
1435 | {
|
---|
1436 | $statements[] = 'ALTER TABLE ' . $table_name . ' ADD ' . $column_name . ' [' . $column_data['column_type_sql'] . ']';
|
---|
1437 | }
|
---|
1438 | break;
|
---|
1439 | }
|
---|
1440 |
|
---|
1441 | return $this->_sql_run_sql($statements);
|
---|
1442 | }
|
---|
1443 |
|
---|
1444 | /**
|
---|
1445 | * Drop column
|
---|
1446 | */
|
---|
1447 | function sql_column_remove($table_name, $column_name, $inline = false)
|
---|
1448 | {
|
---|
1449 | $statements = array();
|
---|
1450 |
|
---|
1451 | switch ($this->sql_layer)
|
---|
1452 | {
|
---|
1453 | case 'firebird':
|
---|
1454 | $statements[] = 'ALTER TABLE ' . $table_name . ' DROP "' . strtoupper($column_name) . '"';
|
---|
1455 | break;
|
---|
1456 |
|
---|
1457 | case 'mssql':
|
---|
1458 | $statements[] = 'ALTER TABLE [' . $table_name . '] DROP COLUMN [' . $column_name . ']';
|
---|
1459 | break;
|
---|
1460 |
|
---|
1461 | case 'mysql_40':
|
---|
1462 | case 'mysql_41':
|
---|
1463 | $statements[] = 'ALTER TABLE `' . $table_name . '` DROP COLUMN `' . $column_name . '`';
|
---|
1464 | break;
|
---|
1465 |
|
---|
1466 | case 'oracle':
|
---|
1467 | $statements[] = 'ALTER TABLE ' . $table_name . ' DROP ' . $column_name;
|
---|
1468 | break;
|
---|
1469 |
|
---|
1470 | case 'postgres':
|
---|
1471 | $statements[] = 'ALTER TABLE ' . $table_name . ' DROP COLUMN "' . $column_name . '"';
|
---|
1472 | break;
|
---|
1473 |
|
---|
1474 | case 'sqlite':
|
---|
1475 |
|
---|
1476 | if ($inline && $this->return_statements)
|
---|
1477 | {
|
---|
1478 | return $column_name;
|
---|
1479 | }
|
---|
1480 |
|
---|
1481 | if (version_compare(sqlite_libversion(), '3.0') == -1)
|
---|
1482 | {
|
---|
1483 | $sql = "SELECT sql
|
---|
1484 | FROM sqlite_master
|
---|
1485 | WHERE type = 'table'
|
---|
1486 | AND name = '{$table_name}'
|
---|
1487 | ORDER BY type DESC, name;";
|
---|
1488 | $result = $this->db->sql_query($sql);
|
---|
1489 |
|
---|
1490 | if (!$result)
|
---|
1491 | {
|
---|
1492 | break;
|
---|
1493 | }
|
---|
1494 |
|
---|
1495 | $row = $this->db->sql_fetchrow($result);
|
---|
1496 | $this->db->sql_freeresult($result);
|
---|
1497 |
|
---|
1498 | $statements[] = 'begin';
|
---|
1499 |
|
---|
1500 | // Create a backup table and populate it, destroy the existing one
|
---|
1501 | $statements[] = preg_replace('#CREATE\s+TABLE\s+"?' . $table_name . '"?#i', 'CREATE TEMPORARY TABLE ' . $table_name . '_temp', $row['sql']);
|
---|
1502 | $statements[] = 'INSERT INTO ' . $table_name . '_temp SELECT * FROM ' . $table_name;
|
---|
1503 | $statements[] = 'DROP TABLE ' . $table_name;
|
---|
1504 |
|
---|
1505 | preg_match('#\((.*)\)#s', $row['sql'], $matches);
|
---|
1506 |
|
---|
1507 | $new_table_cols = trim($matches[1]);
|
---|
1508 | $old_table_cols = preg_split('/,(?![\s\w]+\))/m', $new_table_cols);
|
---|
1509 | $column_list = array();
|
---|
1510 |
|
---|
1511 | foreach ($old_table_cols as $declaration)
|
---|
1512 | {
|
---|
1513 | $entities = preg_split('#\s+#', trim($declaration));
|
---|
1514 | if ($entities[0] == 'PRIMARY' || $entities[0] === $column_name)
|
---|
1515 | {
|
---|
1516 | continue;
|
---|
1517 | }
|
---|
1518 | $column_list[] = $entities[0];
|
---|
1519 | }
|
---|
1520 |
|
---|
1521 | $columns = implode(',', $column_list);
|
---|
1522 |
|
---|
1523 | $new_table_cols = preg_replace('/' . $column_name . '[^,]+(?:,|$)/m', '', $new_table_cols);
|
---|
1524 |
|
---|
1525 | // create a new table and fill it up. destroy the temp one
|
---|
1526 | $statements[] = 'CREATE TABLE ' . $table_name . ' (' . $new_table_cols . ');';
|
---|
1527 | $statements[] = 'INSERT INTO ' . $table_name . ' (' . $columns . ') SELECT ' . $columns . ' FROM ' . $table_name . '_temp;';
|
---|
1528 | $statements[] = 'DROP TABLE ' . $table_name . '_temp';
|
---|
1529 |
|
---|
1530 | $statements[] = 'commit';
|
---|
1531 | }
|
---|
1532 | else
|
---|
1533 | {
|
---|
1534 | $statements[] = 'ALTER TABLE ' . $table_name . ' DROP COLUMN ' . $column_name;
|
---|
1535 | }
|
---|
1536 | break;
|
---|
1537 | }
|
---|
1538 |
|
---|
1539 | return $this->_sql_run_sql($statements);
|
---|
1540 | }
|
---|
1541 |
|
---|
1542 | /**
|
---|
1543 | * Drop Index
|
---|
1544 | */
|
---|
1545 | function sql_index_drop($table_name, $index_name)
|
---|
1546 | {
|
---|
1547 | $statements = array();
|
---|
1548 |
|
---|
1549 | switch ($this->sql_layer)
|
---|
1550 | {
|
---|
1551 | case 'mssql':
|
---|
1552 | $statements[] = 'DROP INDEX ' . $table_name . '.' . $index_name;
|
---|
1553 | break;
|
---|
1554 |
|
---|
1555 | case 'mysql_40':
|
---|
1556 | case 'mysql_41':
|
---|
1557 | $statements[] = 'DROP INDEX ' . $index_name . ' ON ' . $table_name;
|
---|
1558 | break;
|
---|
1559 |
|
---|
1560 | case 'firebird':
|
---|
1561 | case 'oracle':
|
---|
1562 | case 'postgres':
|
---|
1563 | case 'sqlite':
|
---|
1564 | $statements[] = 'DROP INDEX ' . $table_name . '_' . $index_name;
|
---|
1565 | break;
|
---|
1566 | }
|
---|
1567 |
|
---|
1568 | return $this->_sql_run_sql($statements);
|
---|
1569 | }
|
---|
1570 |
|
---|
1571 | /**
|
---|
1572 | * Drop Table
|
---|
1573 | */
|
---|
1574 | function sql_table_drop($table_name)
|
---|
1575 | {
|
---|
1576 | $statements = array();
|
---|
1577 |
|
---|
1578 | if (!$this->sql_table_exists($table_name))
|
---|
1579 | {
|
---|
1580 | return $this->_sql_run_sql($statements);
|
---|
1581 | }
|
---|
1582 |
|
---|
1583 | // the most basic operation, get rid of the table
|
---|
1584 | $statements[] = 'DROP TABLE ' . $table_name;
|
---|
1585 |
|
---|
1586 | switch ($this->sql_layer)
|
---|
1587 | {
|
---|
1588 | case 'firebird':
|
---|
1589 | $sql = 'SELECT RDB$GENERATOR_NAME as gen
|
---|
1590 | FROM RDB$GENERATORS
|
---|
1591 | WHERE RDB$SYSTEM_FLAG = 0
|
---|
1592 | AND RDB$GENERATOR_NAME = \'' . strtoupper($table_name) . "_GEN'";
|
---|
1593 | $result = $this->db->sql_query($sql);
|
---|
1594 |
|
---|
1595 | // does a generator exist?
|
---|
1596 | if ($row = $this->db->sql_fetchrow($result))
|
---|
1597 | {
|
---|
1598 | $statements[] = "DROP GENERATOR {$row['gen']};";
|
---|
1599 | }
|
---|
1600 | $this->db->sql_freeresult($result);
|
---|
1601 | break;
|
---|
1602 |
|
---|
1603 | case 'oracle':
|
---|
1604 | $sql = 'SELECT A.REFERENCED_NAME
|
---|
1605 | FROM USER_DEPENDENCIES A, USER_TRIGGERS B
|
---|
1606 | WHERE A.REFERENCED_TYPE = \'SEQUENCE\'
|
---|
1607 | AND A.NAME = B.TRIGGER_NAME
|
---|
1608 | AND B.TABLE_NAME = \'' . strtoupper($table_name) . "'";
|
---|
1609 | $result = $this->db->sql_query($sql);
|
---|
1610 |
|
---|
1611 | // any sequences ref'd to this table's triggers?
|
---|
1612 | while ($row = $this->db->sql_fetchrow($result))
|
---|
1613 | {
|
---|
1614 | $statements[] = "DROP SEQUENCE {$row['referenced_name']}";
|
---|
1615 | }
|
---|
1616 | $this->db->sql_freeresult($result);
|
---|
1617 |
|
---|
1618 | case 'postgres':
|
---|
1619 | // PGSQL does not "tightly" bind sequences and tables, we must guess...
|
---|
1620 | $sql = "SELECT relname
|
---|
1621 | FROM pg_class
|
---|
1622 | WHERE relkind = 'S'
|
---|
1623 | AND relname = '{$table_name}_seq'";
|
---|
1624 | $result = $this->db->sql_query($sql);
|
---|
1625 |
|
---|
1626 | // We don't even care about storing the results. We already know the answer if we get rows back.
|
---|
1627 | if ($this->db->sql_fetchrow($result))
|
---|
1628 | {
|
---|
1629 | $statements[] = "DROP SEQUENCE {$table_name}_seq;\n";
|
---|
1630 | }
|
---|
1631 | $this->db->sql_freeresult($result);
|
---|
1632 | break;
|
---|
1633 | }
|
---|
1634 |
|
---|
1635 | return $this->_sql_run_sql($statements);
|
---|
1636 | }
|
---|
1637 |
|
---|
1638 | /**
|
---|
1639 | * Add primary key
|
---|
1640 | */
|
---|
1641 | function sql_create_primary_key($table_name, $column, $inline = false)
|
---|
1642 | {
|
---|
1643 | $statements = array();
|
---|
1644 |
|
---|
1645 | switch ($this->sql_layer)
|
---|
1646 | {
|
---|
1647 | case 'firebird':
|
---|
1648 | case 'postgres':
|
---|
1649 | case 'mysql_40':
|
---|
1650 | case 'mysql_41':
|
---|
1651 | $statements[] = 'ALTER TABLE ' . $table_name . ' ADD PRIMARY KEY (' . implode(', ', $column) . ')';
|
---|
1652 | break;
|
---|
1653 |
|
---|
1654 | case 'mssql':
|
---|
1655 | $sql = "ALTER TABLE [{$table_name}] WITH NOCHECK ADD ";
|
---|
1656 | $sql .= "CONSTRAINT [PK_{$table_name}] PRIMARY KEY CLUSTERED (";
|
---|
1657 | $sql .= '[' . implode("],\n\t\t[", $column) . ']';
|
---|
1658 | $sql .= ') ON [PRIMARY]';
|
---|
1659 |
|
---|
1660 | $statements[] = $sql;
|
---|
1661 | break;
|
---|
1662 |
|
---|
1663 | case 'oracle':
|
---|
1664 | $statements[] = 'ALTER TABLE ' . $table_name . 'add CONSTRAINT pk_' . $table_name . ' PRIMARY KEY (' . implode(', ', $column) . ')';
|
---|
1665 | break;
|
---|
1666 |
|
---|
1667 | case 'sqlite':
|
---|
1668 |
|
---|
1669 | if ($inline && $this->return_statements)
|
---|
1670 | {
|
---|
1671 | return $column;
|
---|
1672 | }
|
---|
1673 |
|
---|
1674 | $sql = "SELECT sql
|
---|
1675 | FROM sqlite_master
|
---|
1676 | WHERE type = 'table'
|
---|
1677 | AND name = '{$table_name}'
|
---|
1678 | ORDER BY type DESC, name;";
|
---|
1679 | $result = $this->db->sql_query($sql);
|
---|
1680 |
|
---|
1681 | if (!$result)
|
---|
1682 | {
|
---|
1683 | break;
|
---|
1684 | }
|
---|
1685 |
|
---|
1686 | $row = $this->db->sql_fetchrow($result);
|
---|
1687 | $this->db->sql_freeresult($result);
|
---|
1688 |
|
---|
1689 | $statements[] = 'begin';
|
---|
1690 |
|
---|
1691 | // Create a backup table and populate it, destroy the existing one
|
---|
1692 | $statements[] = preg_replace('#CREATE\s+TABLE\s+"?' . $table_name . '"?#i', 'CREATE TEMPORARY TABLE ' . $table_name . '_temp', $row['sql']);
|
---|
1693 | $statements[] = 'INSERT INTO ' . $table_name . '_temp SELECT * FROM ' . $table_name;
|
---|
1694 | $statements[] = 'DROP TABLE ' . $table_name;
|
---|
1695 |
|
---|
1696 | preg_match('#\((.*)\)#s', $row['sql'], $matches);
|
---|
1697 |
|
---|
1698 | $new_table_cols = trim($matches[1]);
|
---|
1699 | $old_table_cols = preg_split('/,(?![\s\w]+\))/m', $new_table_cols);
|
---|
1700 | $column_list = array();
|
---|
1701 |
|
---|
1702 | foreach ($old_table_cols as $declaration)
|
---|
1703 | {
|
---|
1704 | $entities = preg_split('#\s+#', trim($declaration));
|
---|
1705 | if ($entities[0] == 'PRIMARY')
|
---|
1706 | {
|
---|
1707 | continue;
|
---|
1708 | }
|
---|
1709 | $column_list[] = $entities[0];
|
---|
1710 | }
|
---|
1711 |
|
---|
1712 | $columns = implode(',', $column_list);
|
---|
1713 |
|
---|
1714 | // create a new table and fill it up. destroy the temp one
|
---|
1715 | $statements[] = 'CREATE TABLE ' . $table_name . ' (' . $new_table_cols . ', PRIMARY KEY (' . implode(', ', $column) . '));';
|
---|
1716 | $statements[] = 'INSERT INTO ' . $table_name . ' (' . $columns . ') SELECT ' . $columns . ' FROM ' . $table_name . '_temp;';
|
---|
1717 | $statements[] = 'DROP TABLE ' . $table_name . '_temp';
|
---|
1718 |
|
---|
1719 | $statements[] = 'commit';
|
---|
1720 | break;
|
---|
1721 | }
|
---|
1722 |
|
---|
1723 | return $this->_sql_run_sql($statements);
|
---|
1724 | }
|
---|
1725 |
|
---|
1726 | /**
|
---|
1727 | * Add unique index
|
---|
1728 | */
|
---|
1729 | function sql_create_unique_index($table_name, $index_name, $column)
|
---|
1730 | {
|
---|
1731 | $statements = array();
|
---|
1732 |
|
---|
1733 | switch ($this->sql_layer)
|
---|
1734 | {
|
---|
1735 | case 'firebird':
|
---|
1736 | case 'postgres':
|
---|
1737 | case 'oracle':
|
---|
1738 | case 'sqlite':
|
---|
1739 | $statements[] = 'CREATE UNIQUE INDEX ' . $table_name . '_' . $index_name . ' ON ' . $table_name . '(' . implode(', ', $column) . ')';
|
---|
1740 | break;
|
---|
1741 |
|
---|
1742 | case 'mysql_40':
|
---|
1743 | case 'mysql_41':
|
---|
1744 | $statements[] = 'CREATE UNIQUE INDEX ' . $index_name . ' ON ' . $table_name . '(' . implode(', ', $column) . ')';
|
---|
1745 | break;
|
---|
1746 |
|
---|
1747 | case 'mssql':
|
---|
1748 | $statements[] = 'CREATE UNIQUE INDEX ' . $index_name . ' ON ' . $table_name . '(' . implode(', ', $column) . ') ON [PRIMARY]';
|
---|
1749 | break;
|
---|
1750 | }
|
---|
1751 |
|
---|
1752 | return $this->_sql_run_sql($statements);
|
---|
1753 | }
|
---|
1754 |
|
---|
1755 | /**
|
---|
1756 | * Add index
|
---|
1757 | */
|
---|
1758 | function sql_create_index($table_name, $index_name, $column)
|
---|
1759 | {
|
---|
1760 | $statements = array();
|
---|
1761 |
|
---|
1762 | switch ($this->sql_layer)
|
---|
1763 | {
|
---|
1764 | case 'firebird':
|
---|
1765 | case 'postgres':
|
---|
1766 | case 'oracle':
|
---|
1767 | case 'sqlite':
|
---|
1768 | $statements[] = 'CREATE INDEX ' . $table_name . '_' . $index_name . ' ON ' . $table_name . '(' . implode(', ', $column) . ')';
|
---|
1769 | break;
|
---|
1770 |
|
---|
1771 | case 'mysql_40':
|
---|
1772 | case 'mysql_41':
|
---|
1773 | $statements[] = 'CREATE INDEX ' . $index_name . ' ON ' . $table_name . '(' . implode(', ', $column) . ')';
|
---|
1774 | break;
|
---|
1775 |
|
---|
1776 | case 'mssql':
|
---|
1777 | $statements[] = 'CREATE INDEX ' . $index_name . ' ON ' . $table_name . '(' . implode(', ', $column) . ') ON [PRIMARY]';
|
---|
1778 | break;
|
---|
1779 | }
|
---|
1780 |
|
---|
1781 | return $this->_sql_run_sql($statements);
|
---|
1782 | }
|
---|
1783 |
|
---|
1784 | /**
|
---|
1785 | * List all of the indices that belong to a table,
|
---|
1786 | * does not count:
|
---|
1787 | * * UNIQUE indices
|
---|
1788 | * * PRIMARY keys
|
---|
1789 | */
|
---|
1790 | function sql_list_index($table_name)
|
---|
1791 | {
|
---|
1792 | $index_array = array();
|
---|
1793 |
|
---|
1794 | if ($this->sql_layer == 'mssql')
|
---|
1795 | {
|
---|
1796 | $sql = "EXEC sp_statistics '$table_name'";
|
---|
1797 | $result = $this->db->sql_query($sql);
|
---|
1798 | while ($row = $this->db->sql_fetchrow($result))
|
---|
1799 | {
|
---|
1800 | if ($row['TYPE'] == 3)
|
---|
1801 | {
|
---|
1802 | $index_array[] = $row['INDEX_NAME'];
|
---|
1803 | }
|
---|
1804 | }
|
---|
1805 | $this->db->sql_freeresult($result);
|
---|
1806 | }
|
---|
1807 | else
|
---|
1808 | {
|
---|
1809 | switch ($this->sql_layer)
|
---|
1810 | {
|
---|
1811 | case 'firebird':
|
---|
1812 | $sql = "SELECT LOWER(RDB\$INDEX_NAME) as index_name
|
---|
1813 | FROM RDB\$INDICES
|
---|
1814 | WHERE RDB\$RELATION_NAME = '" . strtoupper($table_name) . "'
|
---|
1815 | AND RDB\$UNIQUE_FLAG IS NULL
|
---|
1816 | AND RDB\$FOREIGN_KEY IS NULL";
|
---|
1817 | $col = 'index_name';
|
---|
1818 | break;
|
---|
1819 |
|
---|
1820 | case 'postgres':
|
---|
1821 | $sql = "SELECT ic.relname as index_name
|
---|
1822 | FROM pg_class bc, pg_class ic, pg_index i
|
---|
1823 | WHERE (bc.oid = i.indrelid)
|
---|
1824 | AND (ic.oid = i.indexrelid)
|
---|
1825 | AND (bc.relname = '" . $table_name . "')
|
---|
1826 | AND (i.indisunique != 't')
|
---|
1827 | AND (i.indisprimary != 't')";
|
---|
1828 | $col = 'index_name';
|
---|
1829 | break;
|
---|
1830 |
|
---|
1831 | case 'mysql_40':
|
---|
1832 | case 'mysql_41':
|
---|
1833 | $sql = 'SHOW KEYS
|
---|
1834 | FROM ' . $table_name;
|
---|
1835 | $col = 'Key_name';
|
---|
1836 | break;
|
---|
1837 |
|
---|
1838 | case 'oracle':
|
---|
1839 | $sql = "SELECT index_name
|
---|
1840 | FROM user_indexes
|
---|
1841 | WHERE table_name = '" . strtoupper($table_name) . "'
|
---|
1842 | AND generated = 'N'
|
---|
1843 | AND uniqueness = 'NONUNIQUE'";
|
---|
1844 | $col = 'index_name';
|
---|
1845 | break;
|
---|
1846 |
|
---|
1847 | case 'sqlite':
|
---|
1848 | $sql = "PRAGMA index_info('" . $table_name . "');";
|
---|
1849 | $col = 'name';
|
---|
1850 | break;
|
---|
1851 | }
|
---|
1852 |
|
---|
1853 | $result = $this->db->sql_query($sql);
|
---|
1854 | while ($row = $this->db->sql_fetchrow($result))
|
---|
1855 | {
|
---|
1856 | if (($this->sql_layer == 'mysql_40' || $this->sql_layer == 'mysql_41') && !$row['Non_unique'])
|
---|
1857 | {
|
---|
1858 | continue;
|
---|
1859 | }
|
---|
1860 |
|
---|
1861 | switch ($this->sql_layer)
|
---|
1862 | {
|
---|
1863 | case 'firebird':
|
---|
1864 | case 'oracle':
|
---|
1865 | case 'postgres':
|
---|
1866 | case 'sqlite':
|
---|
1867 | $row[$col] = substr($row[$col], strlen($table_name) + 1);
|
---|
1868 | break;
|
---|
1869 | }
|
---|
1870 |
|
---|
1871 | $index_array[] = $row[$col];
|
---|
1872 | }
|
---|
1873 | $this->db->sql_freeresult($result);
|
---|
1874 | }
|
---|
1875 |
|
---|
1876 | return array_map('strtolower', $index_array);
|
---|
1877 | }
|
---|
1878 |
|
---|
1879 | /**
|
---|
1880 | * Change column type (not name!)
|
---|
1881 | */
|
---|
1882 | function sql_column_change($table_name, $column_name, $column_data, $inline = false)
|
---|
1883 | {
|
---|
1884 | $column_data = $this->sql_prepare_column_data($table_name, $column_name, $column_data);
|
---|
1885 | $statements = array();
|
---|
1886 |
|
---|
1887 | switch ($this->sql_layer)
|
---|
1888 | {
|
---|
1889 | case 'firebird':
|
---|
1890 | // Change type...
|
---|
1891 | if (!empty($column_data['column_type_sql_default']))
|
---|
1892 | {
|
---|
1893 | $statements[] = 'ALTER TABLE ' . $table_name . ' ALTER COLUMN "' . strtoupper($column_name) . '" TYPE ' . ' ' . $column_data['column_type_sql_type'];
|
---|
1894 | $statements[] = 'ALTER TABLE ' . $table_name . ' ALTER COLUMN "' . strtoupper($column_name) . '" SET DEFAULT ' . ' ' . $column_data['column_type_sql_default'];
|
---|
1895 | }
|
---|
1896 | else
|
---|
1897 | {
|
---|
1898 | $statements[] = 'ALTER TABLE ' . $table_name . ' ALTER COLUMN "' . strtoupper($column_name) . '" TYPE ' . ' ' . $column_data['column_type_sql_type'];
|
---|
1899 | }
|
---|
1900 | break;
|
---|
1901 |
|
---|
1902 | case 'mssql':
|
---|
1903 | $statements[] = 'ALTER TABLE [' . $table_name . '] ALTER COLUMN [' . $column_name . '] ' . $column_data['column_type_sql'];
|
---|
1904 |
|
---|
1905 | if (!empty($column_data['default']))
|
---|
1906 | {
|
---|
1907 | // Using TRANSACT-SQL for this statement because we do not want to have colliding data if statements are executed at a later stage
|
---|
1908 | $statements[] = "DECLARE @drop_default_name VARCHAR(100), @cmd VARCHAR(1000)
|
---|
1909 | SET @drop_default_name =
|
---|
1910 | (SELECT so.name FROM sysobjects so
|
---|
1911 | JOIN sysconstraints sc ON so.id = sc.constid
|
---|
1912 | WHERE object_name(so.parent_obj) = '{$table_name}'
|
---|
1913 | AND so.xtype = 'D'
|
---|
1914 | AND sc.colid = (SELECT colid FROM syscolumns
|
---|
1915 | WHERE id = object_id('{$table_name}')
|
---|
1916 | AND name = '{$column_name}'))
|
---|
1917 | IF @drop_default_name <> ''
|
---|
1918 | BEGIN
|
---|
1919 | SET @cmd = 'ALTER TABLE [{$table_name}] DROP CONSTRAINT [' + @drop_default_name + ']'
|
---|
1920 | EXEC(@cmd)
|
---|
1921 | END
|
---|
1922 | SET @cmd = 'ALTER TABLE [{$table_name}] ADD CONSTRAINT [DF_{$table_name}_{$column_name}_1] {$column_data['default']} FOR [{$column_name}]'
|
---|
1923 | EXEC(@cmd)";
|
---|
1924 | }
|
---|
1925 | break;
|
---|
1926 |
|
---|
1927 | case 'mysql_40':
|
---|
1928 | case 'mysql_41':
|
---|
1929 | $statements[] = 'ALTER TABLE `' . $table_name . '` CHANGE `' . $column_name . '` `' . $column_name . '` ' . $column_data['column_type_sql'];
|
---|
1930 | break;
|
---|
1931 |
|
---|
1932 | case 'oracle':
|
---|
1933 | $statements[] = 'ALTER TABLE ' . $table_name . ' MODIFY ' . $column_name . ' ' . $column_data['column_type_sql'];
|
---|
1934 | break;
|
---|
1935 |
|
---|
1936 | case 'postgres':
|
---|
1937 | $sql = 'ALTER TABLE ' . $table_name . ' ';
|
---|
1938 |
|
---|
1939 | $sql_array = array();
|
---|
1940 | $sql_array[] = 'ALTER COLUMN ' . $column_name . ' TYPE ' . $column_data['column_type'];
|
---|
1941 |
|
---|
1942 | if (isset($column_data['null']))
|
---|
1943 | {
|
---|
1944 | if ($column_data['null'] == 'NOT NULL')
|
---|
1945 | {
|
---|
1946 | $sql_array[] = 'ALTER COLUMN ' . $column_name . ' SET NOT NULL';
|
---|
1947 | }
|
---|
1948 | else if ($column_data['null'] == 'NULL')
|
---|
1949 | {
|
---|
1950 | $sql_array[] = 'ALTER COLUMN ' . $column_name . ' DROP NOT NULL';
|
---|
1951 | }
|
---|
1952 | }
|
---|
1953 |
|
---|
1954 | if (isset($column_data['default']))
|
---|
1955 | {
|
---|
1956 | $sql_array[] = 'ALTER COLUMN ' . $column_name . ' SET DEFAULT ' . $column_data['default'];
|
---|
1957 | }
|
---|
1958 |
|
---|
1959 | // we don't want to double up on constraints if we change different number data types
|
---|
1960 | if (isset($column_data['constraint']))
|
---|
1961 | {
|
---|
1962 | $constraint_sql = "SELECT consrc as constraint_data
|
---|
1963 | FROM pg_constraint, pg_class bc
|
---|
1964 | WHERE conrelid = bc.oid
|
---|
1965 | AND bc.relname = '{$table_name}'
|
---|
1966 | AND NOT EXISTS (
|
---|
1967 | SELECT *
|
---|
1968 | FROM pg_constraint as c, pg_inherits as i
|
---|
1969 | WHERE i.inhrelid = pg_constraint.conrelid
|
---|
1970 | AND c.conname = pg_constraint.conname
|
---|
1971 | AND c.consrc = pg_constraint.consrc
|
---|
1972 | AND c.conrelid = i.inhparent
|
---|
1973 | )";
|
---|
1974 |
|
---|
1975 | $constraint_exists = false;
|
---|
1976 |
|
---|
1977 | $result = $this->db->sql_query($constraint_sql);
|
---|
1978 | while ($row = $this->db->sql_fetchrow($result))
|
---|
1979 | {
|
---|
1980 | if (trim($row['constraint_data']) == trim($column_data['constraint']))
|
---|
1981 | {
|
---|
1982 | $constraint_exists = true;
|
---|
1983 | break;
|
---|
1984 | }
|
---|
1985 | }
|
---|
1986 | $this->db->sql_freeresult($result);
|
---|
1987 |
|
---|
1988 | if (!$constraint_exists)
|
---|
1989 | {
|
---|
1990 | $sql_array[] = 'ADD ' . $column_data['constraint'];
|
---|
1991 | }
|
---|
1992 | }
|
---|
1993 |
|
---|
1994 | $sql .= implode(', ', $sql_array);
|
---|
1995 |
|
---|
1996 | $statements[] = $sql;
|
---|
1997 | break;
|
---|
1998 |
|
---|
1999 | case 'sqlite':
|
---|
2000 |
|
---|
2001 | if ($inline && $this->return_statements)
|
---|
2002 | {
|
---|
2003 | return $column_name . ' ' . $column_data['column_type_sql'];
|
---|
2004 | }
|
---|
2005 |
|
---|
2006 | $sql = "SELECT sql
|
---|
2007 | FROM sqlite_master
|
---|
2008 | WHERE type = 'table'
|
---|
2009 | AND name = '{$table_name}'
|
---|
2010 | ORDER BY type DESC, name;";
|
---|
2011 | $result = $this->db->sql_query($sql);
|
---|
2012 |
|
---|
2013 | if (!$result)
|
---|
2014 | {
|
---|
2015 | break;
|
---|
2016 | }
|
---|
2017 |
|
---|
2018 | $row = $this->db->sql_fetchrow($result);
|
---|
2019 | $this->db->sql_freeresult($result);
|
---|
2020 |
|
---|
2021 | $statements[] = 'begin';
|
---|
2022 |
|
---|
2023 | // Create a temp table and populate it, destroy the existing one
|
---|
2024 | $statements[] = preg_replace('#CREATE\s+TABLE\s+"?' . $table_name . '"?#i', 'CREATE TEMPORARY TABLE ' . $table_name . '_temp', $row['sql']);
|
---|
2025 | $statements[] = 'INSERT INTO ' . $table_name . '_temp SELECT * FROM ' . $table_name;
|
---|
2026 | $statements[] = 'DROP TABLE ' . $table_name;
|
---|
2027 |
|
---|
2028 | preg_match('#\((.*)\)#s', $row['sql'], $matches);
|
---|
2029 |
|
---|
2030 | $new_table_cols = trim($matches[1]);
|
---|
2031 | $old_table_cols = preg_split('/,(?![\s\w]+\))/m', $new_table_cols);
|
---|
2032 | $column_list = array();
|
---|
2033 |
|
---|
2034 | foreach ($old_table_cols as $key => $declaration)
|
---|
2035 | {
|
---|
2036 | $entities = preg_split('#\s+#', trim($declaration));
|
---|
2037 | $column_list[] = $entities[0];
|
---|
2038 | if ($entities[0] == $column_name)
|
---|
2039 | {
|
---|
2040 | $old_table_cols[$key] = $column_name . ' ' . $column_data['column_type_sql'];
|
---|
2041 | }
|
---|
2042 | }
|
---|
2043 |
|
---|
2044 | $columns = implode(',', $column_list);
|
---|
2045 |
|
---|
2046 | // create a new table and fill it up. destroy the temp one
|
---|
2047 | $statements[] = 'CREATE TABLE ' . $table_name . ' (' . implode(',', $old_table_cols) . ');';
|
---|
2048 | $statements[] = 'INSERT INTO ' . $table_name . ' (' . $columns . ') SELECT ' . $columns . ' FROM ' . $table_name . '_temp;';
|
---|
2049 | $statements[] = 'DROP TABLE ' . $table_name . '_temp';
|
---|
2050 |
|
---|
2051 | $statements[] = 'commit';
|
---|
2052 |
|
---|
2053 | break;
|
---|
2054 | }
|
---|
2055 |
|
---|
2056 | return $this->_sql_run_sql($statements);
|
---|
2057 | }
|
---|
2058 | }
|
---|
2059 |
|
---|
2060 | ?>
|
---|