alterCourseTable(); } protected function alterCourseTable() { $table = $this->table('kg_course'); if (!$table->hasColumn('fake_user_count')) { $table->addColumn('fake_user_count', 'integer', [ 'null' => false, 'default' => '0', 'limit' => MysqlAdapter::INT_REGULAR, 'signed' => false, 'comment' => '伪造用户数', 'after' => 'user_count', ]); } $table->save(); } }