为什么模型的Yii PrimaryKey为空？

Question

I have a table in my database and worked this by yii model and this table had not primarykey and id column.

Then i decide to add an id column to this table. When added an id column as primaryKey my model cannot find this new column as primaryKey and when i called $this->primaryKey in my model, return null to me!

Answer 1

You should add your new attribute in the "attributeLabels" method.

 public function attributeLabels() {
        return array(
            'id_table' => 'Id Table',
                  ...
        );
    }

Furthermore, You could use Gii to generate your new model.