php - Yii Conditional Validation -



php - Yii Conditional Validation -

i have question yii validation. have dropdown options y , n. if user select y user must explain why chose y hence textarea box become required.

my code rule looks @ follows.

array('explain', 'check', 'trigger'=>'med_effects'),

check function used validation

public function check($attribute, $params) { if($this->$params['trigger'] == 0 && $this->$attribute == '') { $this->adderror($attribute, 'explain effects of medicine'); } }

the value $this->$params['trigger'] not change. i'm assuming because saved value 0(y) , not alter if user take n. how supposed determine alternative user chose when sumbits form?

thanks.

create property within model:

public $isdropdownchecked;

in view, create dropdown wired new property created.

and homecoming array of rules within method rules() this:

public function rules() { $rules[] = array(); if ($this->isdropdownchecked == 'y') $rules[] = array('explain', 'check', 'trigger'=>'med_effects'); homecoming $rules; }

php forms validation yii

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