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https://github.com/Oreolek/kohana-migrations.git
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61 lines
1.4 KiB
PHP
61 lines
1.4 KiB
PHP
<?php defined('SYSPATH') or die('No direct script access.');
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/**
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* The base migration class, must be extended by all migration files
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*
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* Each migration file must implement an up() and a down() which are used to
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* apply / remove this migration from the schema respectively
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*
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* @author Matt Button <matthew@sigswitch.com>
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*/
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abstract class Minion_Migration_Base {
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/**
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* Array of information about this migration
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* @var array
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*/
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protected $_info = array();
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/**
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* Constructs the migration
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*
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* @param array Information about this migration
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*/
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public function __construct(array $info)
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{
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$this->_info = $info;
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}
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/**
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* Get the name of the database connection group this migration should be run against
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*
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* @return string
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*/
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public function get_database_connection()
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{
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$config = Kohana::$config->load('minion/migration');
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$group = $this->_info['group'];
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if (isset($config->group_connection[$group]))
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{
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return $config->group_connection[$group];
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}
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return Database::$default;
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}
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/**
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* Runs any SQL queries necessary to bring the database up a migration version
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*
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* @param Kohana_Database The database connection to perform actions on
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*/
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abstract public function up(Kohana_Database $db);
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/**
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* Runs any SQL queries necessary to bring the database schema down a version
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*
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* @param Kohana_Database The database connection to perform actions on
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*/
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abstract public function down(Kohana_Database $db);
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}
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