m161101_142752_blog_article_lang.php
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<?php
use yii\db\Migration;
class m161101_142752_blog_article_lang extends Migration
{
public function up()
{
/**
* Create table with language fields of blog articles
*/
$this->createTable(
'blog_article_lang',
[
'id' => $this->primaryKey(),
'blog_article_id' => $this->integer()
->notNull(),
'language_id' => $this->integer()
->notNull(),
'title' => $this->string(255),
'body' => $this->text(),
'body_preview' => $this->text(),
'alias_id' => $this->integer(),
]
);
/**
* Creating indexes for unique fields (field pairs)
*/
$this->createIndex(
'blog_article_lang_uk',
'blog_article_lang',
[
'blog_article_id',
'language_id',
],
true
);
$this->createIndex(
'blog_article_alias_uk',
'blog_article_lang',
'alias_id',
true
);
/**
* Add foreign keys in blog_articles and language tables
*/
$this->addForeignKey(
'blog_article_fk',
'blog_article_lang',
'blog_article_id',
'blog_article',
'id',
'CASCADE',
'CASCADE'
);
$this->addForeignKey(
'blog_article_lang_fk',
'blog_article_lang',
'language_id',
'language',
'id',
'RESTRICT',
'CASCADE'
);
}
public function down()
{
$this->dropForeignKey('blog_article_lang_fk', 'blog_article_lang');
$this->dropForeignKey('blog_article_fk', 'blog_article_lang');
$this->dropIndex('blog_article_alias_uk', 'blog_article_lang');
$this->dropIndex('blog_article_lang_uk', 'blog_article_lang');
$this->dropTable('blog_article_lang');
}
}