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我有一個定義爲字段如下:意外學說驗證錯誤
class Subcategory extends BaseSubcategory {}
abstract class BaseSubcategory extends Doctrine_Record
{
public function setTableDefinition()
{
// ...
$this->hasColumn('meta_description', 'string', 255);
// ...
}
// ...
}
這裏的表是什麼樣子:
mysql> DESCRIBE subcategory;
+----------------------+------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+----------------------+------------------+------+-----+---------+----------------+
| id | int(10) unsigned | NO | PRI | NULL | auto_increment |
[...]
| meta_description | varchar(255) | YES | | NULL | |
[...]
+----------------------+------------------+------+-----+---------+----------------+
10 rows in set (0.00 sec)
這裏是我的代碼來保存創紀錄
$m = new Subcategory;
// ...
$m->meta_description = null;
$m->save();
我收到以下驗證錯誤
* 1 validator failed on meta_description (length)
這是怎麼發生的?