* @since 2.0.8 */ class m160313_153426_session_init extends Migration { /** * {@inheritdoc} */ public function up() { $dataType = $this->binary(); $tableOptions = null; switch ($this->db->driverName) { case 'mysql': // http://stackoverflow.com/questions/766809/whats-the-difference-between-utf8-general-ci-and-utf8-unicode-ci $tableOptions = 'CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB'; break; case 'sqlsrv': case 'mssql': case 'dblib': $dataType = $this->text(); break; } $this->createTable('{{%session}}', [ 'id' => $this->string()->notNull(), 'expire' => $this->integer(), 'data' => $dataType, 'PRIMARY KEY ([[id]])', ], $tableOptions); } /** * {@inheritdoc} */ public function down() { $this->dropTable('{{%session}}'); } }