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Migration.php
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Migration.php
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<?php
/*
* This file is part of the Dektrium project.
*
* (c) Dektrium project <http://github.com/dektrium/>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace dektrium\user\migrations;
use Yii;
/**
* @author Dmitry Erofeev <dmeroff@gmail.com>
*/
class Migration extends \yii\db\Migration
{
/**
* @var string
*/
protected $tableOptions;
protected $restrict = 'RESTRICT';
protected $cascade = 'CASCADE';
protected $dbType;
/**
* @inheritdoc
*/
public function init()
{
parent::init();
switch ($this->db->driverName) {
case 'mysql':
$this->tableOptions = 'CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB';
$this->dbType = 'mysql';
break;
case 'pgsql':
$this->tableOptions = null;
$this->dbType = 'pgsql';
break;
case 'dblib':
case 'mssql':
case 'sqlsrv':
$this->restrict = 'NO ACTION';
$this->tableOptions = null;
$this->dbType = 'sqlsrv';
break;
default:
throw new \RuntimeException('Your database is not supported!');
}
}
public function dropColumnConstraints($table, $column)
{
$table = $this->db->schema->getRawTableName($table);
$cmd = $this->db->createCommand('SELECT name FROM sys.default_constraints
WHERE parent_object_id = object_id(:table)
AND type = \'D\' AND parent_column_id = (
SELECT column_id
FROM sys.columns
WHERE object_id = object_id(:table)
and name = :column
)', [ ':table' => $table, ':column' => $column ]);
$constraints = $cmd->queryAll();
foreach ($constraints as $c) {
$this->execute('ALTER TABLE '.$this->db->quoteTableName($table).' DROP CONSTRAINT '.$this->db->quoteColumnName($c['name']));
}
}
}