yii2 disable the rules if a checkbox is selected

Question

In the active form, I have 3 textinput and one checkbox. All the 3 textinputs have rules that says cannot be empty. What I want is if the checkbox is clicked, It will disable the rules and will save the empty record in the database.

here is screen shot of the active form..

Answer 1

You could define the rules that way (using when):

public function rules()
{
    return [            
        ['cancelled',   'boolean'],
        ['checkNumber', 'required'],
        ['payee',       'required', 'when' => function ($model) {return !$model->cancelled;}],
        ['particulars', 'required', 'when' => function ($model) {return !$model->cancelled;}],
    ];
}

You may want to add whenClient as well to let the browser check this before it submits the form.

Answer 2

You can do something like this:

$model = new SomeForm();
if ($model->load(Yii::$app->request->post())){
if ($model->checkbox == true) $model->scenario = 'checked';
}
// your model rules:
[['name', 'email', 'subject', 'body'], 'safe', 'on' => 'checked']

or alternatively You can do this:

 if ($model->checkbox == true) $model->save(false); //this will disable any validation so be carefull

edit: if You need cliend side validation switch, You have to use this:

[['name', 'email', 'subject', 'body'], 'required', 'when' => function ($model) {
                return $model->cancelled == '0';
            }, 'whenClient' => new JsExpression("function (attribute, value) {  return $('#mailform-cancelled').val() == '0';}")]