String length validation

[tebazil (Vasiliy Baukin)]

Hi, I have this situation:

in validation rules, I have a rule:

[['access_key'], 'string','length'=>32],

I fill the value of access_key in beforeSave method.

I’ve looked through yii2 source code - the validate() runs before beforeSave().

The question is: why don’t I get error when I do not set access_key ?

Thanks.

[Keith (Kburton)]

Have you specified a ‘required’ rule?

[['access_key'], 'required'],

[tebazil (Vasiliy Baukin)]

Have you specified a ‘required’ rule?

[['access_key'], 'required'],

No, I didn’t. Does this means that in the absense of ‘required’ null or converted to false values are not validated?

[georaldc]

Doesn’t length there mean max length and not minimum (sorry, haven’t used Yii 2 yet)?

[Rom (Rokorolov)]

Doesn’t length there mean max length and not minimum (sorry, haven’t used Yii 2 yet)?

http://www.yiiframework.com/doc-2.0/guide-tutorial-core-validators.html#string

[tebazil (Vasiliy Baukin)]

I found the answer in the manual:

Note: Most validators do not handle empty inputs if their [[yii\base\Validator::skipOnEmpty]] property takes the default value true. They will simply be skipped during validation if their associated attributes receive empty inputs. Among the core validators, only the captcha, default, filter, required, and trim validators will handle empty inputs.

It means empty input validation is skipped in my case.

[Rom (Rokorolov)]

I found the answer in the manual:

It means empty input validation is skipped in my case.

Yes, but you can always configure the skipOnEmpty property,

[[‘access_key’], ‘string’, ‘length’ => 32, ‘skipOnEmpty’ => false],