Changeset 424 for branches/Modular/Common/Module.php

Timestamp:

Oct 10, 2012, 9:29:20 AM (12 years ago)

Author:

chronos

Message:

• Upraveno: Modulární systém přepracován tak, že základní modul System je zodpovědný za udržování stavu instalování modulů v databázi a je instalován samostatně jako první modul. Následně lze instalovat moduly dle závislostí.

File:

• branches/Modular/Common/Module.php (modified) (10 diffs)

branches/Modular/Common/Module.php

@@ -14 +14 @@
   var $Models = array();
   var $SupportedModels = array();
+  /** @var Database */
   var $Database;
   var $Installed;
-  var $Initialized;
-  var $System;
+  var $Running;
+  /** @var ModularSystem */
+  var $ModularSystem;
+  
   
   function __construct($Database, $System)
@@ -23 +26 @@
     $this->Database = &$Database;    
     $this->System = &$System;    
-    $this->Initialized = false;
+    $this->Running = false;
     $this->Installed = false;
   }
@@ -29 +32 @@
   function Install()
   {
-    if($this->Installed) return;
+    if($this->IsInstalled()) return;
     DebugLog('Installing module '.$this->Name.'...');
     $this->Installed = true;
@@ -35 +38 @@
     // Install dependencies first
     foreach($this->Dependencies as $Dependency)  
-      $this->System->Modules[$Dependency]->Install();
-
-    $this->LoadModels();
-    foreach($this->Models as $Index => $Module)
-    {
-      $this->Models[$Index]->Install();
-    }
-    $this->Database->query('UPDATE SystemModule SET Installed=1 WHERE Name="'.$this->Name.'"');
+      $this->ModularSystem->Modules[$Dependency]->Install();
+    $this->DoChange();
   }
   
   function UnInstall()
   {
+    if($this->IsInstalled() == false) return;
     DebugLog('Uninstalling module '.$this->Name.'...');
+    if($this->Running) $this->Stop();
     $this->Installed = false;
     
@@ -55 +54 @@
         if(($Dependency == $this->Name) and ($Module->Installed)) $this->System->Modules[$Module->Name]->UnInstall();
         
+    $this->DoChange();
+  }
+  
+  function IsInstalled()
+  {
+    return($this->Installed);
+  }
+  
+  function Start()
+  {
+    if($this->Running) return;
+    if($this->IsInstalled() == false) return;
+    $this->Running = true;
+    foreach($this->Dependencies as $Dependency)  
+      $this->System->Modules[$Dependency]->Start();
     $this->LoadModels();
-    foreach(array_reverse($this->Models, true) as $Index => $Model)
-    {
-      $this->Models[$Index]->UnInstall();
-    }
-    $this->Database->query('UPDATE SystemModule SET Installed=0 WHERE Name="'.$this->Name.'"');
-  }
-  
-  function Init()
-  {
-    if($this->Initialized) return;
-    $this->Initialized = true;
-    foreach($this->Dependencies as $Dependency)  
-      $this->System->Modules[$Dependency]->Init();
+    $this->DoChange();
   } 
   
+  function Stop()
+  {
+    if(!$this->Running) return;
+    $this->Running = false;
+    foreach($this->System->Modules as $Module)  
+      foreach($Module->Dependencies as $Dependency)
+        if(($Dependency == $this->Name) and ($Module->Running)) 
+          $this->System->Modules[$Module->Name]->Stop();
+    $this->DoChange();
+  }
+  
+  private function DoChange()
+  {
+    if($this->ModularSystem->OnModuleChange) 
+      call_user_func_array($this->ModularSystem->OnModuleChange, array($this));
+  }
+  
+  function RegisterModel($ModelName)
+  {
+    $this->SupportedModels[] = $ModelName;
+  }
+  
+  function UnregisterModel($ModelName)
+  {
+    unset($this->SupportedModels[$ModelName]);  
+  }
+
   function LoadModels()
   {
@@ -85 +114 @@
 class ModularSystem
 {
+  /** @var Database */
   var $Database;
   var $Modules = array();
   var $Models = array();
   var $Menu = array();
+  var $OnModuleChange;
   
   function __construct($Database)
@@ -95 +126 @@
   }
   
-  function ModulePresent($Name)
-  {
-    return(array_key_exists($Name, $this->Modules));
-  }
-
-  function LoadModules($Installed = true)
-  {
-    //DebugLog('Loading modules...');
-    $this->Modules = array();
-    $Query = 'SELECT `Id`, `Name`,`Installed` FROM `SystemModule`';
-    if($Installed) $Query .= ' WHERE `Installed`=1';
-      else $Query .= ''; // WHERE `Installed`=0';
-    $DbResult = $this->Database->query($Query);
-    while($Module = $DbResult->fetch_array())
-    {
-      //echo($Module['Name'].',');
-      include_once('Modules/'.$Module['Name'].'/'.$Module['Name'].'.php');
-      $ModuleClassName = 'Module'.$Module['Name'];
-      $NewModule = new $ModuleClassName($this->Database, $this);      
-      $NewModule->Id = $Module['Id'];
-      $NewModule->Installed = $Module['Installed'];
-      $this->Modules[$Module['Name']] = $NewModule;
-    }     
-  }
-  
-  function Init()
+  function StartAll()
   {
     $this->LoadModules();
@@ -126 +132 @@
     {
       //DebugLog('Init module '.$Module->Name);
-      $this->Modules[$Index]->Init();
-    }
-  }
-  
+      $this->Modules[$Index]->Start();
+    }
+  }
+  
+  function StopAll()
+  {
+    foreach($this->Modules as $Index => $Module)
+    {
+      //DebugLog('Init module '.$Module->Name);
+      $this->Modules[$Index]->Stop();
+    }
+  }
+
   function Install()
   {
     //DebugLog('Installing modular system core...');
-    $this->Database->query('CREATE TABLE IF NOT EXISTS `SystemVersion` (
-  `Id` int(11) NOT NULL AUTO_INCREMENT,
-  `Version` varchar(255) COLLATE utf8_czech_ci NOT NULL,
-  `Description` datetime NOT NULL,
-  PRIMARY KEY (`Id`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_czech_ci AUTO_INCREMENT=1;');
-    $this->Database->query('CREATE TABLE IF NOT EXISTS `SystemModule` (
-  `Id` int(11) NOT NULL AUTO_INCREMENT,
-  `Name` varchar(255) COLLATE utf8_czech_ci NOT NULL,
-  `Creator` varchar(255) COLLATE utf8_czech_ci NOT NULL,
-  `Version` varchar(255) COLLATE utf8_czech_ci NOT NULL,
-  `License` varchar(255) COLLATE utf8_czech_ci NOT NULL,
-  `Installed` int(11) NOT NULL,
-  `Description` text COLLATE utf8_czech_ci NOT NULL,
-  PRIMARY KEY (`Id`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_czech_ci AUTO_INCREMENT=1;');
-    
-    $this->Database->query('CREATE TABLE IF NOT EXISTS `SystemModuleDependency` (
-  `Id` int(11) NOT NULL AUTO_INCREMENT,
-  `Module` int(11) NOT NULL,
-  `DependencyModule` int(11) NOT NULL,
-  PRIMARY KEY (`Id`),
-  KEY (`Module`),
-  KEY (`DependencyModule`),
-  UNIQUE (`Module` , `DependencyModule`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_czech_ci AUTO_INCREMENT=1;');
-    $this->Database->query('ALTER TABLE `SystemModuleDependency` ADD CONSTRAINT `SystemModuleDependency_ibfk_1` FOREIGN KEY ( `Module` ) REFERENCES `SystemModule` (`Id`)');
-    $this->Database->query('ALTER TABLE `SystemModuleDependency` ADD CONSTRAINT `SystemModuleDependency_ibfk_2` FOREIGN KEY ( `DependencyModule` ) REFERENCES `SystemModule` (`Id`)');
-    
-    $this->Database->query('CREATE TABLE IF NOT EXISTS `SystemModel` (
-  `Id` int(11) NOT NULL AUTO_INCREMENT,
-  `Name` varchar(255) COLLATE utf8_czech_ci NOT NULL,
-  `Module` int(11) NOT NULL,
-  KEY (`Module`),
-  PRIMARY KEY (`Id`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_czech_ci AUTO_INCREMENT=1;');
-    $this->Database->query('ALTER TABLE `SystemModel` ADD CONSTRAINT `SystemModel_ibfk_1` FOREIGN KEY ( `Module` ) REFERENCES `SystemModule` (`Id`)');
-    
-    $this->Database->query('CREATE TABLE IF NOT EXISTS `SystemModelProperty` (
-  `Id` int(11) NOT NULL AUTO_INCREMENT,
-  `Name` varchar(255) COLLATE utf8_czech_ci NOT NULL,
-  `Type` varchar(255) COLLATE utf8_czech_ci NOT NULL,
-  `Model` int(11) NOT NULL,
-  KEY (`Model`),
-  PRIMARY KEY (`Id`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_czech_ci AUTO_INCREMENT=1;');
-    $this->Database->query('ALTER TABLE `SystemModelProperty` ADD CONSTRAINT `SystemModelProperty_ibfk_1` FOREIGN KEY ( `Model` ) REFERENCES `SystemModel` (`Id`)');
     
     $this->ReloadList();
@@ -190 +158 @@
   }
   
-  function UnInstall()
+  function UnInstallAll()
   {
     DebugLog('Uninstalling modular system core...');
-    foreach(array_reverse($this->Modules, true) as $Index => $Module)
-      $this->Modules[$Index]->UnInstall();
-    
-    // Delete tables with reverse order
-    $this->Database->query('ALTER TABLE `SystemModelProperty` DROP FOREIGN KEY `SystemModelProperty_ibfk_1`');
-    $this->Database->query('DROP TABLE IF EXISTS `SystemModelProperty`');
-    $this->Database->query('ALTER TABLE `SystemModel` DROP FOREIGN KEY `SystemModel_ibfk_1`');
-    $this->Database->query('DROP TABLE IF EXISTS `SystemModel`');
-    $this->Database->query('ALTER TABLE `SystemModuleDependency` DROP FOREIGN KEY `SystemModuleDependency_ibfk_1`');
-    $this->Database->query('ALTER TABLE `SystemModuleDependency` DROP FOREIGN KEY `SystemModuleDependency_ibfk_2`');
-    $this->Database->query('DROP TABLE IF EXISTS `SystemModuleDependency`');
-    $this->Database->query('DROP TABLE IF EXISTS `SystemModule`');
-    $this->Database->query('DROP TABLE IF EXISTS `SystemVersion`');
-  }
-  
-  function IsInstalled()
-  {
-    $DbResult = $this->Database->query('SELECT table_name FROM information_schema.tables
-WHERE table_schema = "'.$this->Database->Database.'" AND table_name = "SystemVersion";');    
-    if($DbResult->num_rows > 0) return(true); 
-      else return(false);
-  }
-  
-  function ReloadList()
-  {
-    // Load list of modules from database
-    $Modules = array();
-    $DbResult = $this->Database->query('SELECT * FROM `SystemModule`');
-    while($DbRow = $DbResult->fetch_assoc())
-      $Modules[$DbRow['Name']] = $DbRow;
-    
+    foreach($this->Modules as $Index => $Module)
+    {
+      //DebugLog('Init module '.$Module->Name);
+      $this->Modules[$Index]->Uninstall();
+    }
+  }
+  
+  /* @return Module */
+  function SearchModuleById($Id)
+  {
+    foreach($this->Modules as $Module)
+    {
+      //DebugLog($Module->Name.' '.$Module->Id);
+      if($Module->Id == $Id) return($Module->Name);
+    }        
+    return('');
+  }
+
+  function ModulePresent($Name)
+  {
+    return(array_key_exists($Name, $this->Modules));
+  }
+  
+  function RegisterModule(Module $Module)
+  {
+    $this->Modules[$Module->Name] = &$Module;  
+    $Module->ModularSystem = $this;
+    $Module->OnChange = &$this->OnModuleChange;
+  }
+  
+  function UnregisterModule($Module)
+  {
+    unset($this->Modules[array_search($Module, $this->Modules)]);  
+  }
+  
+  function ReloadFromDisk()
+  {    
     // Load list of modules on disk
     $ModulesOnDisk = array();
@@ -235 +209 @@
     // Add new 
     foreach($ModulesOnDisk as $ModuleName)
-    if(!array_key_exists($ModuleName, $Modules))
-    {
-      DebugLog('Adding module '.$ModuleName.' to list');
+    if(!array_key_exists($ModuleName, $this->Modules))
+    {
+      //DebugLog('Adding module '.$ModuleName.' to list');
       include_once('Modules/'.$ModuleName.'/'.$ModuleName.'.php');
       $ModuleClassName = 'Module'.$ModuleName;
       if(class_exists($ModuleClassName))
       {
-        $Module = new $ModuleClassName($this->Database, $this); 
-        $this->Database->insert('SystemModule', array('Name' => $Module->Name, 
-          'Version' => $Module->Version, 'Creator' => $Module->Creator, 
-          'Description' => $Module->Description, 'License' => $Module->License,
-          'Installed' => 0));
-        unset($Module);
+        $NewModule = new $ModuleClassName($this->Database, $this); 
+        $this->RegisterModule($NewModule);
       } else throw new Exception('Missing class '.$ModuleClassName.' in module '.$ModuleName);
-    }
+    }    
     
-    // Remove missing
-    foreach($Modules as $Module)
-    if(($Module['Installed'] == 0) and !in_array($Module['Name'], $ModulesOnDisk))
-    {
-      DebugLog('Removing module '.$Module['Name'].' from list');
-      $this->Database->query('DELETE FROM `SystemModule` WHERE `Id` = '.$Module['Id']);
-    }
-    
-    // Reload dependencies
-    $this->LoadModules(false);
     foreach($this->Modules as $Module)
-    {
-      foreach($Module->Dependencies as $Dependency)
-      {
-        $this->Database->insert('SystemModuleDependency', array('Module' => $Module->Id, 
-          'DependencyModule' => $this->Modules[$Dependency]->Id));
-      }
-    }
-  }
-  
-  function SearchModuleById($Id)
-  {
-    foreach($this->Modules as $Module)
-    {
-      DebugLog($Module->Name.' '.$Module->Id);
-      if($Module->Id == $Id) return($Module->Name);
-    }        
-    return('');
-  }
+    if(array_key_exists($Module->Name, $ModulesOnDisk))
+    {
+      $this->ModularSystem->UnregisterModule($Module);
+    }
+  }  
 }