586 lines
15 KiB
PHP
586 lines
15 KiB
PHP
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<?php
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/**
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* MigrateCommand class file.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @link http://www.yiiframework.com/
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* @copyright 2008-2013 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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/**
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* MigrateCommand manages the database migrations.
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*
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* The implementation of this command and other supporting classes referenced
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* the yii-dbmigrations extension ((https://github.com/pieterclaerhout/yii-dbmigrations),
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* authored by Pieter Claerhout.
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*
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* Since version 1.1.11 this command will exit with the following exit codes:
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* <ul>
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* <li>0 on success</li>
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* <li>1 on general error</li>
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* <li>2 on failed migration.</li>
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* </ul>
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @package system.cli.commands
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* @since 1.1.6
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*/
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class MigrateCommand extends CConsoleCommand
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{
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const BASE_MIGRATION='m000000_000000_base';
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/**
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* @var string the directory that stores the migrations. This must be specified
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* in terms of a path alias, and the corresponding directory must exist.
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* Defaults to 'application.migrations' (meaning 'protected/migrations').
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*/
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public $migrationPath='application.migrations';
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/**
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* @var string the name of the table for keeping applied migration information.
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* This table will be automatically created if not exists. Defaults to 'tbl_migration'.
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* The table structure is: (version varchar(255) primary key, apply_time integer)
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*/
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public $migrationTable='tbl_migration';
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/**
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* @var string the application component ID that specifies the database connection for
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* storing migration information. Defaults to 'db'.
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*/
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public $connectionID='db';
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/**
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* @var string the path of the template file for generating new migrations. This
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* must be specified in terms of a path alias (e.g. application.migrations.template).
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* If not set, an internal template will be used.
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*/
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public $templateFile;
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/**
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* @var string the default command action. It defaults to 'up'.
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*/
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public $defaultAction='up';
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/**
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* @var boolean whether to execute the migration in an interactive mode. Defaults to true.
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* Set this to false when performing migration in a cron job or background process.
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*/
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public $interactive=true;
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public function beforeAction($action,$params)
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{
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$path=Yii::getPathOfAlias($this->migrationPath);
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if($path===false || !is_dir($path))
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{
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echo 'Error: The migration directory does not exist: '.$this->migrationPath."\n";
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exit(1);
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}
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$this->migrationPath=$path;
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$yiiVersion=Yii::getVersion();
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echo "\nYii Migration Tool v1.0 (based on Yii v{$yiiVersion})\n\n";
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return parent::beforeAction($action,$params);
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}
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public function actionUp($args)
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{
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if(($migrations=$this->getNewMigrations())===array())
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{
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echo "No new migration found. Your system is up-to-date.\n";
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return 0;
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}
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$total=count($migrations);
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$step=isset($args[0]) ? (int)$args[0] : 0;
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if($step>0)
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$migrations=array_slice($migrations,0,$step);
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$n=count($migrations);
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if($n===$total)
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echo "Total $n new ".($n===1 ? 'migration':'migrations')." to be applied:\n";
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else
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echo "Total $n out of $total new ".($total===1 ? 'migration':'migrations')." to be applied:\n";
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foreach($migrations as $migration)
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echo " $migration\n";
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echo "\n";
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if($this->confirm('Apply the above '.($n===1 ? 'migration':'migrations')."?"))
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{
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foreach($migrations as $migration)
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{
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if($this->migrateUp($migration)===false)
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{
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echo "\nMigration failed. All later migrations are canceled.\n";
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return 2;
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}
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}
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echo "\nMigrated up successfully.\n";
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}
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}
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public function actionDown($args)
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{
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$step=isset($args[0]) ? (int)$args[0] : 1;
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if($step<1)
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{
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echo "Error: The step parameter must be greater than 0.\n";
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return 1;
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}
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if(($migrations=$this->getMigrationHistory($step))===array())
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{
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echo "No migration has been done before.\n";
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return 0;
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}
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$migrations=array_keys($migrations);
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$n=count($migrations);
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echo "Total $n ".($n===1 ? 'migration':'migrations')." to be reverted:\n";
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foreach($migrations as $migration)
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echo " $migration\n";
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echo "\n";
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if($this->confirm('Revert the above '.($n===1 ? 'migration':'migrations')."?"))
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{
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foreach($migrations as $migration)
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{
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if($this->migrateDown($migration)===false)
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{
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echo "\nMigration failed. All later migrations are canceled.\n";
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return 2;
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}
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}
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echo "\nMigrated down successfully.\n";
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}
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}
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public function actionRedo($args)
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{
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$step=isset($args[0]) ? (int)$args[0] : 1;
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if($step<1)
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{
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echo "Error: The step parameter must be greater than 0.\n";
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return 1;
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}
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if(($migrations=$this->getMigrationHistory($step))===array())
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{
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echo "No migration has been done before.\n";
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return 0;
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}
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$migrations=array_keys($migrations);
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$n=count($migrations);
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echo "Total $n ".($n===1 ? 'migration':'migrations')." to be redone:\n";
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foreach($migrations as $migration)
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echo " $migration\n";
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echo "\n";
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if($this->confirm('Redo the above '.($n===1 ? 'migration':'migrations')."?"))
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{
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foreach($migrations as $migration)
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{
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if($this->migrateDown($migration)===false)
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{
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echo "\nMigration failed. All later migrations are canceled.\n";
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return 2;
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}
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}
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foreach(array_reverse($migrations) as $migration)
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{
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if($this->migrateUp($migration)===false)
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{
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echo "\nMigration failed. All later migrations are canceled.\n";
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return 2;
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}
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}
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echo "\nMigration redone successfully.\n";
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}
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}
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public function actionTo($args)
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{
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if(isset($args[0]))
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$version=$args[0];
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else
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$this->usageError('Please specify which version to migrate to.');
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$originalVersion=$version;
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if(preg_match('/^m?(\d{6}_\d{6})(_.*?)?$/',$version,$matches))
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$version='m'.$matches[1];
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else
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{
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echo "Error: The version option must be either a timestamp (e.g. 101129_185401)\nor the full name of a migration (e.g. m101129_185401_create_user_table).\n";
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return 1;
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}
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// try migrate up
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$migrations=$this->getNewMigrations();
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foreach($migrations as $i=>$migration)
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{
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if(strpos($migration,$version.'_')===0)
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return $this->actionUp(array($i+1));
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}
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// try migrate down
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$migrations=array_keys($this->getMigrationHistory(-1));
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foreach($migrations as $i=>$migration)
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{
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if(strpos($migration,$version.'_')===0)
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{
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if($i===0)
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{
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echo "Already at '$originalVersion'. Nothing needs to be done.\n";
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return 0;
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}
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else
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return $this->actionDown(array($i));
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}
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}
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echo "Error: Unable to find the version '$originalVersion'.\n";
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return 1;
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}
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public function actionMark($args)
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{
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if(isset($args[0]))
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$version=$args[0];
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else
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$this->usageError('Please specify which version to mark to.');
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$originalVersion=$version;
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if(preg_match('/^m?(\d{6}_\d{6})(_.*?)?$/',$version,$matches))
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$version='m'.$matches[1];
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else {
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echo "Error: The version option must be either a timestamp (e.g. 101129_185401)\nor the full name of a migration (e.g. m101129_185401_create_user_table).\n";
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return 1;
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}
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$db=$this->getDbConnection();
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// try mark up
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$migrations=$this->getNewMigrations();
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foreach($migrations as $i=>$migration)
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{
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if(strpos($migration,$version.'_')===0)
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{
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if($this->confirm("Set migration history at $originalVersion?"))
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{
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$command=$db->createCommand();
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for($j=0;$j<=$i;++$j)
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{
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$command->insert($this->migrationTable, array(
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'version'=>$migrations[$j],
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'apply_time'=>time(),
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));
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}
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echo "The migration history is set at $originalVersion.\nNo actual migration was performed.\n";
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}
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return 0;
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}
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}
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// try mark down
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$migrations=array_keys($this->getMigrationHistory(-1));
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foreach($migrations as $i=>$migration)
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{
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if(strpos($migration,$version.'_')===0)
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{
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if($i===0)
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echo "Already at '$originalVersion'. Nothing needs to be done.\n";
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else
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{
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if($this->confirm("Set migration history at $originalVersion?"))
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{
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$command=$db->createCommand();
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for($j=0;$j<$i;++$j)
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$command->delete($this->migrationTable, $db->quoteColumnName('version').'=:version', array(':version'=>$migrations[$j]));
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echo "The migration history is set at $originalVersion.\nNo actual migration was performed.\n";
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}
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}
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return 0;
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}
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}
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echo "Error: Unable to find the version '$originalVersion'.\n";
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return 1;
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}
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public function actionHistory($args)
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{
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$limit=isset($args[0]) ? (int)$args[0] : -1;
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$migrations=$this->getMigrationHistory($limit);
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if($migrations===array())
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echo "No migration has been done before.\n";
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else
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{
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$n=count($migrations);
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if($limit>0)
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echo "Showing the last $n applied ".($n===1 ? 'migration' : 'migrations').":\n";
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else
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echo "Total $n ".($n===1 ? 'migration has' : 'migrations have')." been applied before:\n";
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foreach($migrations as $version=>$time)
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echo " (".date('Y-m-d H:i:s',$time).') '.$version."\n";
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}
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}
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public function actionNew($args)
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{
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$limit=isset($args[0]) ? (int)$args[0] : -1;
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$migrations=$this->getNewMigrations();
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if($migrations===array())
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echo "No new migrations found. Your system is up-to-date.\n";
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else
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{
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$n=count($migrations);
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if($limit>0 && $n>$limit)
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{
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$migrations=array_slice($migrations,0,$limit);
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echo "Showing $limit out of $n new ".($n===1 ? 'migration' : 'migrations').":\n";
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}
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else
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echo "Found $n new ".($n===1 ? 'migration' : 'migrations').":\n";
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foreach($migrations as $migration)
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echo " ".$migration."\n";
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}
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}
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public function actionCreate($args)
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{
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if(isset($args[0]))
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$name=$args[0];
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else
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$this->usageError('Please provide the name of the new migration.');
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if(!preg_match('/^\w+$/',$name)) {
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echo "Error: The name of the migration must contain letters, digits and/or underscore characters only.\n";
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return 1;
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}
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$name='m'.gmdate('ymd_His').'_'.$name;
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$content=strtr($this->getTemplate(), array('{ClassName}'=>$name));
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$file=$this->migrationPath.DIRECTORY_SEPARATOR.$name.'.php';
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if($this->confirm("Create new migration '$file'?"))
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{
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file_put_contents($file, $content);
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echo "New migration created successfully.\n";
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}
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}
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public function confirm($message,$default=false)
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{
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if(!$this->interactive)
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return true;
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return parent::confirm($message,$default);
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}
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protected function migrateUp($class)
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{
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if($class===self::BASE_MIGRATION)
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return;
|
||
|
|
|
||
|
|
echo "*** applying $class\n";
|
||
|
|
$start=microtime(true);
|
||
|
|
$migration=$this->instantiateMigration($class);
|
||
|
|
if($migration->up()!==false)
|
||
|
|
{
|
||
|
|
$this->getDbConnection()->createCommand()->insert($this->migrationTable, array(
|
||
|
|
'version'=>$class,
|
||
|
|
'apply_time'=>time(),
|
||
|
|
));
|
||
|
|
$time=microtime(true)-$start;
|
||
|
|
echo "*** applied $class (time: ".sprintf("%.3f",$time)."s)\n\n";
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$time=microtime(true)-$start;
|
||
|
|
echo "*** failed to apply $class (time: ".sprintf("%.3f",$time)."s)\n\n";
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
protected function migrateDown($class)
|
||
|
|
{
|
||
|
|
if($class===self::BASE_MIGRATION)
|
||
|
|
return;
|
||
|
|
|
||
|
|
echo "*** reverting $class\n";
|
||
|
|
$start=microtime(true);
|
||
|
|
$migration=$this->instantiateMigration($class);
|
||
|
|
if($migration->down()!==false)
|
||
|
|
{
|
||
|
|
$db=$this->getDbConnection();
|
||
|
|
$db->createCommand()->delete($this->migrationTable, $db->quoteColumnName('version').'=:version', array(':version'=>$class));
|
||
|
|
$time=microtime(true)-$start;
|
||
|
|
echo "*** reverted $class (time: ".sprintf("%.3f",$time)."s)\n\n";
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$time=microtime(true)-$start;
|
||
|
|
echo "*** failed to revert $class (time: ".sprintf("%.3f",$time)."s)\n\n";
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
protected function instantiateMigration($class)
|
||
|
|
{
|
||
|
|
$file=$this->migrationPath.DIRECTORY_SEPARATOR.$class.'.php';
|
||
|
|
require_once($file);
|
||
|
|
$migration=new $class;
|
||
|
|
$migration->setDbConnection($this->getDbConnection());
|
||
|
|
return $migration;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @var CDbConnection
|
||
|
|
*/
|
||
|
|
private $_db;
|
||
|
|
protected function getDbConnection()
|
||
|
|
{
|
||
|
|
if($this->_db!==null)
|
||
|
|
return $this->_db;
|
||
|
|
elseif(($this->_db=Yii::app()->getComponent($this->connectionID)) instanceof CDbConnection)
|
||
|
|
return $this->_db;
|
||
|
|
|
||
|
|
echo "Error: CMigrationCommand.connectionID '{$this->connectionID}' is invalid. Please make sure it refers to the ID of a CDbConnection application component.\n";
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
protected function getMigrationHistory($limit)
|
||
|
|
{
|
||
|
|
$db=$this->getDbConnection();
|
||
|
|
if($db->schema->getTable($this->migrationTable,true)===null)
|
||
|
|
{
|
||
|
|
$this->createMigrationHistoryTable();
|
||
|
|
}
|
||
|
|
return CHtml::listData($db->createCommand()
|
||
|
|
->select('version, apply_time')
|
||
|
|
->from($this->migrationTable)
|
||
|
|
->order('version DESC')
|
||
|
|
->limit($limit)
|
||
|
|
->queryAll(), 'version', 'apply_time');
|
||
|
|
}
|
||
|
|
|
||
|
|
protected function createMigrationHistoryTable()
|
||
|
|
{
|
||
|
|
$db=$this->getDbConnection();
|
||
|
|
echo 'Creating migration history table "'.$this->migrationTable.'"...';
|
||
|
|
$db->createCommand()->createTable($this->migrationTable,array(
|
||
|
|
'version'=>'string NOT NULL PRIMARY KEY',
|
||
|
|
'apply_time'=>'integer',
|
||
|
|
));
|
||
|
|
$db->createCommand()->insert($this->migrationTable,array(
|
||
|
|
'version'=>self::BASE_MIGRATION,
|
||
|
|
'apply_time'=>time(),
|
||
|
|
));
|
||
|
|
echo "done.\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
protected function getNewMigrations()
|
||
|
|
{
|
||
|
|
$applied=array();
|
||
|
|
foreach($this->getMigrationHistory(-1) as $version=>$time)
|
||
|
|
$applied[substr($version,1,13)]=true;
|
||
|
|
|
||
|
|
$migrations=array();
|
||
|
|
$handle=opendir($this->migrationPath);
|
||
|
|
while(($file=readdir($handle))!==false)
|
||
|
|
{
|
||
|
|
if($file==='.' || $file==='..')
|
||
|
|
continue;
|
||
|
|
$path=$this->migrationPath.DIRECTORY_SEPARATOR.$file;
|
||
|
|
if(preg_match('/^(m(\d{6}_\d{6})_.*?)\.php$/',$file,$matches) && is_file($path) && !isset($applied[$matches[2]]))
|
||
|
|
$migrations[]=$matches[1];
|
||
|
|
}
|
||
|
|
closedir($handle);
|
||
|
|
sort($migrations);
|
||
|
|
return $migrations;
|
||
|
|
}
|
||
|
|
|
||
|
|
public function getHelp()
|
||
|
|
{
|
||
|
|
return <<<EOD
|
||
|
|
USAGE
|
||
|
|
yiic migrate [action] [parameter]
|
||
|
|
|
||
|
|
DESCRIPTION
|
||
|
|
This command provides support for database migrations. The optional
|
||
|
|
'action' parameter specifies which specific migration task to perform.
|
||
|
|
It can take these values: up, down, to, create, history, new, mark.
|
||
|
|
If the 'action' parameter is not given, it defaults to 'up'.
|
||
|
|
Each action takes different parameters. Their usage can be found in
|
||
|
|
the following examples.
|
||
|
|
|
||
|
|
EXAMPLES
|
||
|
|
* yiic migrate
|
||
|
|
Applies ALL new migrations. This is equivalent to 'yiic migrate up'.
|
||
|
|
|
||
|
|
* yiic migrate create create_user_table
|
||
|
|
Creates a new migration named 'create_user_table'.
|
||
|
|
|
||
|
|
* yiic migrate up 3
|
||
|
|
Applies the next 3 new migrations.
|
||
|
|
|
||
|
|
* yiic migrate down
|
||
|
|
Reverts the last applied migration.
|
||
|
|
|
||
|
|
* yiic migrate down 3
|
||
|
|
Reverts the last 3 applied migrations.
|
||
|
|
|
||
|
|
* yiic migrate to 101129_185401
|
||
|
|
Migrates up or down to version 101129_185401.
|
||
|
|
|
||
|
|
* yiic migrate mark 101129_185401
|
||
|
|
Modifies the migration history up or down to version 101129_185401.
|
||
|
|
No actual migration will be performed.
|
||
|
|
|
||
|
|
* yiic migrate history
|
||
|
|
Shows all previously applied migration information.
|
||
|
|
|
||
|
|
* yiic migrate history 10
|
||
|
|
Shows the last 10 applied migrations.
|
||
|
|
|
||
|
|
* yiic migrate new
|
||
|
|
Shows all new migrations.
|
||
|
|
|
||
|
|
* yiic migrate new 10
|
||
|
|
Shows the next 10 migrations that have not been applied.
|
||
|
|
|
||
|
|
EOD;
|
||
|
|
}
|
||
|
|
|
||
|
|
protected function getTemplate()
|
||
|
|
{
|
||
|
|
if($this->templateFile!==null)
|
||
|
|
return file_get_contents(Yii::getPathOfAlias($this->templateFile).'.php');
|
||
|
|
else
|
||
|
|
return <<<EOD
|
||
|
|
<?php
|
||
|
|
|
||
|
|
class {ClassName} extends CDbMigration
|
||
|
|
{
|
||
|
|
public function up()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
public function down()
|
||
|
|
{
|
||
|
|
echo "{ClassName} does not support migration down.\\n";
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
// Use safeUp/safeDown to do migration with transaction
|
||
|
|
public function safeUp()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
public function safeDown()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
*/
|
||
|
|
}
|
||
|
|
EOD;
|
||
|
|
}
|
||
|
|
}
|