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26 lines
869 B
26 lines
869 B
9 years ago
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<?php
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use yii\db\Schema;
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use yii\db\Migration;
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class m150722_150000_single_tree extends Migration
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{
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public function up()
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{
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$tableOptions = null;
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if ($this->db->driverName === 'mysql') {
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// http://stackoverflow.com/questions/766809/whats-the-difference-between-utf8-general-ci-and-utf8-unicode-ci
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$tableOptions = 'CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB';
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}
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$this->createTable('{{%single_tree}}', [
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'id' => Schema::TYPE_PK,
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'lft' => Schema::TYPE_INTEGER . ' NOT NULL',
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'rgt' => Schema::TYPE_INTEGER . ' NOT NULL',
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'depth' => Schema::TYPE_INTEGER . ' NOT NULL',
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], $tableOptions);
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$this->createIndex('lft', '{{%single_tree}}', ['lft', 'rgt']);
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$this->createIndex('rgt', '{{%single_tree}}', ['rgt']);
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}
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}
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