mirror of
https://github.com/yiisoft/yii2.git
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541 lines
18 KiB
PHP
541 lines
18 KiB
PHP
<?php
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/**
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* @link http://www.yiiframework.com/
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* @copyright Copyright (c) 2008 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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namespace yii\console\controllers;
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use Yii;
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use yii\db\Connection;
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use yii\db\Query;
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use yii\di\Instance;
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use yii\helpers\ArrayHelper;
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use yii\helpers\Console;
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/**
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* Manages application migrations.
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*
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* A migration means a set of persistent changes to the application environment
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* that is shared among different developers. For example, in an application
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* backed by a database, a migration may refer to a set of changes to
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* the database, such as creating a new table, adding a new table column.
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*
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* This command provides support for tracking the migration history, upgrading
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* or downloading with migrations, and creating new migration skeletons.
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*
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* The migration history is stored in a database table named
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* as [[migrationTable]]. The table will be automatically created the first time
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* this command is executed, if it does not exist. You may also manually
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* create it as follows:
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*
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* ```sql
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* CREATE TABLE migration (
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* version varchar(180) PRIMARY KEY,
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* apply_time integer
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* )
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* ```
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*
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* Below are some common usages of this command:
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*
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* ```
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* # creates a new migration named 'create_user_table'
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* yii migrate/create create_user_table
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*
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* # applies ALL new migrations
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* yii migrate
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*
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* # reverts the last applied migration
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* yii migrate/down
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* ```
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*
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* Since 2.0.10 you can use namespaced migrations. In order to enable this feature you should configure [[migrationNamespaces]]
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* property for the controller at application configuration:
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*
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* ```php
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* return [
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* 'controllerMap' => [
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* 'migrate' => [
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* 'class' => 'yii\console\controllers\MigrateController',
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* 'migrationNamespaces' => [
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* 'app\migrations',
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* 'some\extension\migrations',
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* ],
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* //'migrationPath' => null, // allows to disable not namespaced migration completely
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* ],
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* ],
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* ];
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* ```
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @since 2.0
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*/
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class MigrateController extends BaseMigrateController
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{
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/**
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* Maximum length of a migration name.
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* @since 2.0.13
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*/
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const MAX_NAME_LENGTH = 180;
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/**
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* @var string the name of the table for keeping applied migration information.
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*/
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public $migrationTable = '{{%migration}}';
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/**
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* {@inheritdoc}
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*/
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public $templateFile = '@yii/views/migration.php';
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/**
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* @var array a set of template paths for generating migration code automatically.
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*
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* The key is the template type, the value is a path or the alias. Supported types are:
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* - `create_table`: table creating template
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* - `drop_table`: table dropping template
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* - `add_column`: adding new column template
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* - `drop_column`: dropping column template
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* - `create_junction`: create junction template
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*
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* @since 2.0.7
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*/
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public $generatorTemplateFiles = [
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'create_table' => '@yii/views/createTableMigration.php',
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'drop_table' => '@yii/views/dropTableMigration.php',
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'add_column' => '@yii/views/addColumnMigration.php',
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'drop_column' => '@yii/views/dropColumnMigration.php',
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'create_junction' => '@yii/views/createTableMigration.php',
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];
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/**
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* @var bool indicates whether the table names generated should consider
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* the `tablePrefix` setting of the DB connection. For example, if the table
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* name is `post` the generator wil return `{{%post}}`.
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* @since 2.0.8
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*/
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public $useTablePrefix = false;
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/**
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* @var array column definition strings used for creating migration code.
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*
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* The format of each definition is `COLUMN_NAME:COLUMN_TYPE:COLUMN_DECORATOR`. Delimiter is `,`.
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* For example, `--fields="name:string(12):notNull:unique"`
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* produces a string column of size 12 which is not null and unique values.
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*
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* Note: primary key is added automatically and is named id by default.
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* If you want to use another name you may specify it explicitly like
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* `--fields="id_key:primaryKey,name:string(12):notNull:unique"`
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* @since 2.0.7
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*/
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public $fields = [];
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/**
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* @var Connection|array|string the DB connection object or the application component ID of the DB connection to use
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* when applying migrations. Starting from version 2.0.3, this can also be a configuration array
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* for creating the object.
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*/
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public $db = 'db';
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/**
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* @var string the comment for the table being created.
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* @since 2.0.14
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*/
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public $comment = '';
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/**
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* {@inheritdoc}
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*/
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public function options($actionID)
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{
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return array_merge(
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parent::options($actionID),
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['migrationTable', 'db'], // global for all actions
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$actionID === 'create'
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? ['templateFile', 'fields', 'useTablePrefix', 'comment']
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: []
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);
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}
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/**
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* {@inheritdoc}
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* @since 2.0.8
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*/
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public function optionAliases()
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{
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return array_merge(parent::optionAliases(), [
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'C' => 'comment',
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'f' => 'fields',
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'p' => 'migrationPath',
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't' => 'migrationTable',
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'F' => 'templateFile',
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'P' => 'useTablePrefix',
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'c' => 'compact',
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]);
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}
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/**
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* This method is invoked right before an action is to be executed (after all possible filters.)
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* It checks the existence of the [[migrationPath]].
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* @param \yii\base\Action $action the action to be executed.
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* @return bool whether the action should continue to be executed.
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*/
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public function beforeAction($action)
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{
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if (parent::beforeAction($action)) {
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$this->db = Instance::ensure($this->db, Connection::className());
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return true;
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}
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return false;
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}
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/**
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* Creates a new migration instance.
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* @param string $class the migration class name
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* @return \yii\db\Migration the migration instance
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*/
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protected function createMigration($class)
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{
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$this->includeMigrationFile($class);
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return Yii::createObject([
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'class' => $class,
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'db' => $this->db,
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'compact' => $this->compact,
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]);
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}
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/**
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* {@inheritdoc}
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*/
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protected function getMigrationHistory($limit)
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{
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if ($this->db->schema->getTableSchema($this->migrationTable, true) === null) {
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$this->createMigrationHistoryTable();
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}
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$query = (new Query())
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->select(['version', 'apply_time'])
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->from($this->migrationTable)
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->orderBy(['apply_time' => SORT_DESC, 'version' => SORT_DESC]);
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if (empty($this->migrationNamespaces)) {
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$query->limit($limit);
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$rows = $query->all($this->db);
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$history = ArrayHelper::map($rows, 'version', 'apply_time');
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unset($history[self::BASE_MIGRATION]);
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return $history;
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}
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$rows = $query->all($this->db);
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$history = [];
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foreach ($rows as $key => $row) {
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if ($row['version'] === self::BASE_MIGRATION) {
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continue;
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}
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if (preg_match('/m?(\d{6}_?\d{6})(\D.*)?$/is', $row['version'], $matches)) {
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$time = str_replace('_', '', $matches[1]);
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$row['canonicalVersion'] = $time;
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} else {
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$row['canonicalVersion'] = $row['version'];
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}
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$row['apply_time'] = (int) $row['apply_time'];
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$history[] = $row;
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}
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usort($history, function ($a, $b) {
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if ($a['apply_time'] === $b['apply_time']) {
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if (($compareResult = strcasecmp($b['canonicalVersion'], $a['canonicalVersion'])) !== 0) {
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return $compareResult;
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}
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return strcasecmp($b['version'], $a['version']);
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}
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return ($a['apply_time'] > $b['apply_time']) ? -1 : +1;
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});
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$history = array_slice($history, 0, $limit);
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$history = ArrayHelper::map($history, 'version', 'apply_time');
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return $history;
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}
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/**
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* Creates the migration history table.
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*/
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protected function createMigrationHistoryTable()
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{
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$tableName = $this->db->schema->getRawTableName($this->migrationTable);
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$this->stdout("Creating migration history table \"$tableName\"...", Console::FG_YELLOW);
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$this->db->createCommand()->createTable($this->migrationTable, [
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'version' => 'varchar(' . static::MAX_NAME_LENGTH . ') NOT NULL PRIMARY KEY',
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'apply_time' => 'integer',
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])->execute();
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$this->db->createCommand()->insert($this->migrationTable, [
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'version' => self::BASE_MIGRATION,
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'apply_time' => time(),
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])->execute();
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$this->stdout("Done.\n", Console::FG_GREEN);
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}
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/**
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* {@inheritdoc}
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*/
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protected function addMigrationHistory($version)
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{
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$command = $this->db->createCommand();
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$command->insert($this->migrationTable, [
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'version' => $version,
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'apply_time' => time(),
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])->execute();
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}
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/**
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* {@inheritdoc}
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* @since 2.0.13
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*/
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protected function truncateDatabase()
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{
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$db = $this->db;
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$schemas = $db->schema->getTableSchemas();
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// First drop all foreign keys,
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foreach ($schemas as $schema) {
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if ($schema->foreignKeys) {
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foreach ($schema->foreignKeys as $name => $foreignKey) {
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$db->createCommand()->dropForeignKey($name, $schema->name)->execute();
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$this->stdout("Foreign key $name dropped.\n");
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}
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}
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}
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// Then drop the tables:
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foreach ($schemas as $schema) {
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try {
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$db->createCommand()->dropTable($schema->name)->execute();
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$this->stdout("Table {$schema->name} dropped.\n");
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} catch (\Exception $e) {
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if (strpos($e->getMessage(), 'DROP VIEW to delete view') !== false) {
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$db->createCommand()->dropView($schema->name)->execute();
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$this->stdout("View {$schema->name} dropped.\n");
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} else {
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$this->stdout("Cannot drop {$schema->name} Table .\n");
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}
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}
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}
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}
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/**
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* {@inheritdoc}
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*/
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protected function removeMigrationHistory($version)
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{
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$command = $this->db->createCommand();
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$command->delete($this->migrationTable, [
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'version' => $version,
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])->execute();
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}
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private $_migrationNameLimit;
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/**
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* {@inheritdoc}
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* @since 2.0.13
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*/
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protected function getMigrationNameLimit()
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{
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if ($this->_migrationNameLimit !== null) {
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return $this->_migrationNameLimit;
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}
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$tableSchema = $this->db->schema ? $this->db->schema->getTableSchema($this->migrationTable, true) : null;
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if ($tableSchema !== null) {
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return $this->_migrationNameLimit = $tableSchema->columns['version']->size;
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}
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return static::MAX_NAME_LENGTH;
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}
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/**
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* {@inheritdoc}
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* @since 2.0.8
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*/
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protected function generateMigrationSourceCode($params)
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{
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$parsedFields = $this->parseFields();
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$fields = $parsedFields['fields'];
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$foreignKeys = $parsedFields['foreignKeys'];
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$name = $params['name'];
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$templateFile = $this->templateFile;
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$table = null;
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if (preg_match('/^create_junction(?:_table_for_|_for_|_)(.+)_and_(.+)_tables?$/', $name, $matches)) {
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$templateFile = $this->generatorTemplateFiles['create_junction'];
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$firstTable = $matches[1];
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$secondTable = $matches[2];
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$fields = array_merge(
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[
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[
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'property' => $firstTable . '_id',
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'decorators' => 'integer()',
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],
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[
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'property' => $secondTable . '_id',
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'decorators' => 'integer()',
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],
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],
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$fields,
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[
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[
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'property' => 'PRIMARY KEY(' .
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$firstTable . '_id, ' .
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$secondTable . '_id)',
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],
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]
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);
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$foreignKeys[$firstTable . '_id']['table'] = $firstTable;
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$foreignKeys[$secondTable . '_id']['table'] = $secondTable;
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$foreignKeys[$firstTable . '_id']['column'] = null;
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$foreignKeys[$secondTable . '_id']['column'] = null;
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$table = $firstTable . '_' . $secondTable;
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} elseif (preg_match('/^add_(.+)_columns?_to_(.+)_table$/', $name, $matches)) {
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$templateFile = $this->generatorTemplateFiles['add_column'];
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$table = $matches[2];
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} elseif (preg_match('/^drop_(.+)_columns?_from_(.+)_table$/', $name, $matches)) {
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$templateFile = $this->generatorTemplateFiles['drop_column'];
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$table = $matches[2];
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} elseif (preg_match('/^create_(.+)_table$/', $name, $matches)) {
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$this->addDefaultPrimaryKey($fields);
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$templateFile = $this->generatorTemplateFiles['create_table'];
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$table = $matches[1];
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} elseif (preg_match('/^drop_(.+)_table$/', $name, $matches)) {
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$this->addDefaultPrimaryKey($fields);
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$templateFile = $this->generatorTemplateFiles['drop_table'];
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$table = $matches[1];
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}
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foreach ($foreignKeys as $column => $foreignKey) {
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$relatedColumn = $foreignKey['column'];
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$relatedTable = $foreignKey['table'];
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// Since 2.0.11 if related column name is not specified,
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// we're trying to get it from table schema
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// @see https://github.com/yiisoft/yii2/issues/12748
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if ($relatedColumn === null) {
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$relatedColumn = 'id';
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try {
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$this->db = Instance::ensure($this->db, Connection::className());
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$relatedTableSchema = $this->db->getTableSchema($relatedTable);
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if ($relatedTableSchema !== null) {
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$primaryKeyCount = count($relatedTableSchema->primaryKey);
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if ($primaryKeyCount === 1) {
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$relatedColumn = $relatedTableSchema->primaryKey[0];
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} elseif ($primaryKeyCount > 1) {
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$this->stdout("Related table for field \"{$column}\" exists, but primary key is composite. Default name \"id\" will be used for related field\n", Console::FG_YELLOW);
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} elseif ($primaryKeyCount === 0) {
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$this->stdout("Related table for field \"{$column}\" exists, but does not have a primary key. Default name \"id\" will be used for related field.\n", Console::FG_YELLOW);
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}
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}
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} catch (\ReflectionException $e) {
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$this->stdout("Cannot initialize database component to try reading referenced table schema for field \"{$column}\". Default name \"id\" will be used for related field.\n", Console::FG_YELLOW);
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}
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}
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$foreignKeys[$column] = [
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'idx' => $this->generateTableName("idx-$table-$column"),
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'fk' => $this->generateTableName("fk-$table-$column"),
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'relatedTable' => $this->generateTableName($relatedTable),
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'relatedColumn' => $relatedColumn,
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];
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}
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return $this->renderFile(Yii::getAlias($templateFile), array_merge($params, [
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'table' => $this->generateTableName($table),
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'fields' => $fields,
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'foreignKeys' => $foreignKeys,
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'tableComment' => $this->comment,
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]));
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}
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|
|
/**
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* If `useTablePrefix` equals true, then the table name will contain the
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* prefix format.
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|
*
|
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* @param string $tableName the table name to generate.
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* @return string
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* @since 2.0.8
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*/
|
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protected function generateTableName($tableName)
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{
|
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if (!$this->useTablePrefix) {
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return $tableName;
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}
|
|
|
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return '{{%' . $tableName . '}}';
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}
|
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|
|
/**
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|
* Parse the command line migration fields.
|
|
* @return array parse result with following fields:
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*
|
|
* - fields: array, parsed fields
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* - foreignKeys: array, detected foreign keys
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*
|
|
* @since 2.0.7
|
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*/
|
|
protected function parseFields()
|
|
{
|
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$fields = [];
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$foreignKeys = [];
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foreach ($this->fields as $index => $field) {
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$chunks = preg_split('/\s?:\s?/', $field, null);
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$property = array_shift($chunks);
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|
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foreach ($chunks as $i => &$chunk) {
|
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if (strncmp($chunk, 'foreignKey', 10) === 0) {
|
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preg_match('/foreignKey\((\w*)\s?(\w*)\)/', $chunk, $matches);
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$foreignKeys[$property] = [
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'table' => isset($matches[1])
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? $matches[1]
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: preg_replace('/_id$/', '', $property),
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'column' => !empty($matches[2])
|
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? $matches[2]
|
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: null,
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];
|
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|
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unset($chunks[$i]);
|
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continue;
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}
|
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|
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if (!preg_match('/^(.+?)\(([^(]+)\)$/', $chunk)) {
|
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$chunk .= '()';
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}
|
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}
|
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$fields[] = [
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'property' => $property,
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'decorators' => implode('->', $chunks),
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];
|
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}
|
|
|
|
return [
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'fields' => $fields,
|
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'foreignKeys' => $foreignKeys,
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];
|
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}
|
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|
|
/**
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|
* Adds default primary key to fields list if there's no primary key specified.
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* @param array $fields parsed fields
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* @since 2.0.7
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*/
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protected function addDefaultPrimaryKey(&$fields)
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{
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foreach ($fields as $field) {
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if (false !== strripos($field['decorators'], 'primarykey()')) {
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return;
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}
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}
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array_unshift($fields, ['property' => 'id', 'decorators' => 'primaryKey()']);
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}
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}
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