Why doesn't when in rule work?

Question

Yii

Hi friends.
There is a rule in the settings form:

['value', 'integer', 'min' => '1', 'max' => '9', 'when' => function($m) { return $m->param == 'sku_max'; }],

those. literally - if the parameter is called sku_max then it is only the number 1..9 . But for some reason this rule works for any parameter name. Why doesn't when work ?

Answer 1

It turns out everything worked as it should on the PHP side. and here client validation ignores when, from here and did not start up further. the solution is to turn off client-side validation: in the form parameters.

Answer 2

the problem is not in the rule, if this rule works for you, then really $m->param == 'sku_max' returns true. Here you need to debug the code, maybe you have param set to 'sku_max' by default, and for example you do not load a new parameter name into the model

Answer 3

Instead of "value" you need to specify the name of your parameter "param", because you check it for equality to the value of 'sku_max'

['param', 'integer', 'min' => '1', 'max' => '9', 'when' => function($m) {
    return $m->param == 'sku_max'; 
}],

In general, it can be made easier
['param', 'in', 'range' => range(1, 9)],