Yii form model validation- either one is required

Question

I have two fields on the form ( forgotpassword form ) username and email Id . User should enter one of them . I mean to retrieve the password user can enter user name or th

Answer 1

I don't think there is a predefined rule that would work in that case, but it would be easy enough to define your own where for username and password fields the rule was "if empty($username . $password) { return error }" - you might want to check for a min length or other field-level requirements as well.

Answer 2

I was trying to solve same problem today. What I've got is the code below.

public function rules()
{
    return array(
        // array('username, email', 'required'), // Remove these fields from required!!
        array('email', 'email'),
        array('username, email', 'my_equired'), // do it below any validation of username and email field
    );
}

public function my_required($attribute_name, $params)
{
    if (empty($this->username)
            && empty($this->email)
    ) {
        $this->addError($attribute_name, Yii::t('user', 'At least 1 of the field must be filled up properly'));

        return false;
    }

    return true;
}

General idea is to move 'required' validation to custom my_required() method which can check if any of field is filled up.

I see this post is from 2011 however I couldn't find any other solution for it. I Hope it will work for you or other in the future.

Enjoy.

Answer 3

don't forget "skipOnEmpty" attr. It cost me some hours.

 protected function customRules()
{
    return [
              [['name', 'surname', 'phone'], 'compositeRequired', 'skipOnEmpty' => false,],
    ];
}

public function compositeRequired($attribute_name, $params)
{
    if (empty($this->name)
        && empty($this->surname)
        && empty($this->phone)
    ) {
        $this->addError($attribute_name, Yii::t('error', 'At least 1 of the field must be filled up properly'));

        return false;
    }

    return true;
}

Answer 4

You can use private property inside model class for preventing displays errors two times (do not assign error to model's attribute, but only add to model without specifying it):

class CustomModel extends CFormModel
{
    public $username;
    public $email;

    private $_addOtherOneOfTwoValidationError = true;

    public function rules()
    {
        return array(
            array('username, email', 'requiredOneOfTwo'),
        );
    }

    public function requiredOneOfTwo($attribute, $params)
    {
        if(empty($this->username) && empty($this->email))
        {
            // if error is not already added to model, add it!
            if($this->_addOtherOneOfTwoValidationError)
            {
                $this->addErrors(array('Please enter your username or emailId.'));

                // after first error adding, make error addition impossible
                $this->_addOtherOneOfTwoValidationError = false;
            }

            return false;
        }

        return true;
    }
}

Answer 5

Yii 1

It can be optimized of course but may help someone

class OneOfThemRequiredValidator extends \CValidator
{
    public function validateAttribute($object, $attribute)
    {
        $all_empty = true;
        foreach($this->attributes as $_attribute) {
            if (!$this->isEmpty($object->{$_attribute})) {
                $all_empty = false;
                break;
            }
        }

        if ($all_empty) {
            $message = "Either of the following attributes are required: ";
            $attributes_labels = array_map(function($a) use ($object) {
                    return $object->getAttributeLabel($a);
                }, $this->attributes);
            $this->addError($object, $_attribute, $message . implode(',', 
            $attributes_labels));
        }
    }
}

Answer 6

This works for me:

            ['clientGroupId', 'required', 'when' => function($model) {
                return empty($model->clientId);
            }, 'message' => 'Client group or client selection is required'],