2 ways to implement model adding default value in Yii

The example in this article describes how Yii implements the method of adding default values ​​to the model. Share it with everyone for your reference, the details are as follows:

yii model inherits from CActiveRecord

Some fields may not appear in the form and need to be added in the program. Such as order number, timestamp, user_id of operation, etc.

The following two methods:

1. Set in the rules() method:

public function rules()
{
  // NOTE: you should only define rules for those attributes that
  // will receive user inputs.
  return array(
    array('start, end', 'required'),
    array('user_id', 'numerical', 'integerOnly'=>true),
    array('timestamp','default','value'=>date('Y-m-d H:i:s')),
    // The following rule is used by search().
    // Please remove those attributes that should not be searched.
    array('id, start, end, user_id, timestamp', 'safe', 'on'=>'search'),
  );
}

2. Set in the beforeSave() method:

function beforeSave()
{
  $this->user_id = Yii::app()->user->id;
  return true;
}

It should be noted that beforeSave() The method needs to return true, otherwise it will not be saved.

I hope this article will help you design PHP programs based on the Yii framework.

The above introduces two ways to add default values ​​to the model in Yii, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.