Model Validation Generator: add names to the validation rules to allow easier extending

[cebe]

In rules() the array should have (ideally consistent) keys to allow removing or overwriting validation rules in the extending model.

[Insolita]

Have you any ideas about key name generation?

trim, safe and required rules are common for all and can be named by validator... and other with keys 'attribute_validator' ?

public function rules()
    {
        return [
           'trim' => [['message', 'created_at'], 'trim'],
           'required'=> [['post_id', 'message', 'created_at'], 'required'],
           'post_id_integer'=> [['post_id'], 'integer'],
           'post_id_exist' => [['post_id'], 'exist', 'targetRelation' => 'Post'],
            'user_id_integer' => [['user_id'], 'integer'],
            'user_id_exist' => [['user_id'], 'exist', 'targetRelation' => 'User'],
            'message_string' => [['message'], 'string'],
            'created_at_datetime' =>[['created_at'], 'datetime'],
        ];
    }

[Insolita]

perhaps also we may add into the template for extending model

public function rules()
{
       $rules = parent::rules();
       return $rules;
}