1 | unit UCore;
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2 |
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3 | interface
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4 |
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5 | uses
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6 | Classes, SysUtils, FileUtil, Controls, ActnList, UDatabase, UTranslator,
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7 | UApplicationInfo, UPersistentForm, Forms, URegistry, UScaleDPI;
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8 |
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9 | type
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10 | { TCore }
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11 |
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12 | TCore = class(TDataModule)
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13 | AAbout: TAction;
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14 | ADatabaseConnect: TAction;
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15 | ADatabaseDisconnect: TAction;
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16 | ApplicationInfo1: TApplicationInfo;
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17 | APreferences: TAction;
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18 | AExit: TAction;
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19 | ActionList1: TActionList;
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20 | Translator1: TTranslator;
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21 | ImageList1: TImageList;
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22 | PersistentForm1: TPersistentForm;
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23 | ScaleDPI1: TScaleDPI;
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24 | procedure AAboutExecute(Sender: TObject);
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25 | procedure ADatabaseConnectExecute(Sender: TObject);
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26 | procedure ADatabaseDisconnectExecute(Sender: TObject);
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27 | procedure AExitExecute(Sender: TObject);
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28 | procedure APreferencesExecute(Sender: TObject);
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29 | procedure Translator1Translate(Sender: TObject);
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30 | procedure DataModuleCreate(Sender: TObject);
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31 | procedure DataModuleDestroy(Sender: TObject);
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32 | private
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33 | FDbClient: TDbClient;
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34 | Initialized: Boolean;
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35 | procedure SetDbClient(AValue: TDbClient);
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36 | public
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37 | Preferences: TPreferences;
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38 | DbManager: TDbManager;
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39 | procedure LoadConfig;
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40 | procedure SaveConfig;
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41 | procedure Init;
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42 | procedure Done;
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43 | procedure UpdateInterface;
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44 | property DbClient: TDbClient read FDbClient write SetDbClient;
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45 | end;
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46 |
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47 | var
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48 | Core: TCore;
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49 |
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50 | const
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51 | DefaultRegKey = '\Software\Chronosoft\MyData';
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52 |
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53 |
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54 | implementation
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55 |
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56 | uses
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57 | UFormTables, UFormConnect, UAboutDialog, UFormDatabases, UFormPreferences,
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58 | UFormMain;
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59 |
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60 | {$R *.lfm}
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61 |
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62 | { TCore }
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63 |
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64 | procedure TCore.DataModuleCreate(Sender: TObject);
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65 | begin
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66 | DbManager := TDbManager.Create;
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67 | Preferences := TPreferences.Create;
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68 | end;
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69 |
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70 | procedure TCore.DataModuleDestroy(Sender: TObject);
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71 | begin
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72 | DbClient := nil;
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73 | FreeAndNil(Preferences);
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74 | FreeAndNil(DbManager);
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75 | end;
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76 |
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77 | procedure TCore.AExitExecute(Sender: TObject);
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78 | begin
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79 | FormMain.Close;
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80 | end;
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81 |
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82 | procedure TCore.ADatabaseDisconnectExecute(Sender: TObject);
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83 | begin
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84 | DbClient := nil;
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85 | end;
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86 |
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87 | procedure TCore.ADatabaseConnectExecute(Sender: TObject);
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88 | begin
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89 | with TFormDatabases.Create(nil) do
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90 | try
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91 | if ShowModal = mrOk then begin
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92 | DbClient := nil;
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93 | DbClient := SelectedProfile.GetClient;
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94 | end;
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95 | finally
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96 | Free;
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97 | end;
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98 | end;
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99 |
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100 | procedure TCore.AAboutExecute(Sender: TObject);
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101 | begin
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102 | with TAboutDialog.Create(nil) do
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103 | try
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104 | ApplicationInfo := ApplicationInfo1;
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105 | Show;
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106 | finally
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107 | Free;
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108 | end;
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109 | end;
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110 |
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111 | procedure TCore.APreferencesExecute(Sender: TObject);
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112 | begin
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113 | with TFormPreferences.Create(nil) do
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114 | try
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115 | Load(Preferences);
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116 | if ShowModal = mrOk then Save(Preferences);
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117 | finally
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118 | Free;
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119 | end;
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120 | end;
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121 |
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122 | procedure TCore.Translator1Translate(Sender: TObject);
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123 | var
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124 | I: Integer;
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125 | begin
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126 | for I := 0 to DbManager.DataTypes.Count - 1 do begin
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127 | TDataType(DbManager.DataTypes[I]).Title := Translator1.TranslateText(TDataType(DbManager.DataTypes[I]).Title, TDataType(DbManager.DataTypes[I]).Title);
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128 | end;
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129 | end;
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130 |
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131 | procedure TCore.SetDbClient(AValue: TDbClient);
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132 | begin
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133 | if FDbClient = AValue then Exit;
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134 | if Assigned(FDbClient) then begin
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135 | FormMain.FormTables.DbClient := nil;
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136 | DbClient.Save;
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137 | FreeAndNil(FDbClient);
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138 | end;
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139 | FDbClient := AValue;
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140 | if Assigned(FDbClient) then begin
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141 | DbClient.Load;
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142 | Preferences.LastDatabaseName := FDbClient.ConnectProfile.Name;
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143 | FormMain.FormTables.DbClient := DbClient;
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144 | end;
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145 | UpdateInterface;
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146 | end;
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147 |
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148 | procedure TCore.LoadConfig;
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149 | begin
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150 | with TRegistryEx.Create do
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151 | try
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152 | CurrentContext := TRegistryContext.Create(rrKeyCurrentUser, DefaultRegKey);
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153 | Preferences.RememberDatabase := GetValue('RememberDatabase', True);
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154 | Preferences.LastDatabaseName := GetValue('LastDatabaseName', '');
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155 | Translator1.Language := Translator1.Languages.SearchByCode(
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156 | GetValue('Language', ''));
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157 | finally
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158 | Free;
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159 | end;
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160 | DbManager.ConnectProfiles.LoadFromRegistry(TRegistryContext.Create(rrKeyCurrentUser, DefaultRegKey + '\Database'));
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161 | end;
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162 |
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163 | procedure TCore.SaveConfig;
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164 | begin
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165 | with TRegistryEx.Create do
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166 | try
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167 | CurrentContext := TRegistryContext.Create(rrKeyCurrentUser, DefaultRegKey);
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168 | SetValue('RememberDatabase', Preferences.RememberDatabase);
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169 | SetValue('LastDatabaseName', Preferences.LastDatabaseName);
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170 | SetValue('Language', Translator1.Language.Code);
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171 | finally
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172 | Free;
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173 | end;
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174 | DbManager.ConnectProfiles.SaveToRegistry(TRegistryContext.Create(rrKeyCurrentUser, DefaultRegKey + '\Database'));
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175 | end;
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176 |
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177 | procedure TCore.Init;
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178 | var
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179 | ConnectProfile: TDbConnectProfile;
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180 | begin
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181 | if not Initialized then begin
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182 | {$IFDEF UNIX}
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183 | // If installed in Linux system then use installation directory for po files
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184 | if Application.ExeName = '/usr/bin/MyData' then
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185 | Translator1.POFilesFolder := '/usr/share/MyData/languages';
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186 | {$ENDIF}
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187 | Initialized := True;
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188 | LoadConfig;
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189 | UpdateInterface;
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190 | if Preferences.RememberDatabase then begin
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191 | ConnectProfile := DbManager.ConnectProfiles.SearchByName(Preferences.LastDatabaseName);
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192 | if Assigned(ConnectProfile) then begin
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193 | DbClient := ConnectProfile.GetClient;
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194 | end;
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195 | end else ADatabaseConnect.Execute;
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196 | end;
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197 | end;
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198 |
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199 | procedure TCore.Done;
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200 | begin
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201 | SaveConfig;
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202 | DbClient := nil;
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203 | end;
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204 |
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205 | procedure TCore.UpdateInterface;
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206 | begin
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207 | ADatabaseDisconnect.Enabled := Assigned(DbClient);
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208 | FormMain.UpdateInterface;
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209 | end;
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210 |
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211 | end.
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212 |
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