Custom Validation

Question

Custom Validation

chakravarthy28 Jul '15

Created Jul '15	Last Reply Oct '16	Replies 2	Views 1219	Votes 0

chakravarthy28 1.7k

Jul '15

Hi,

In model i write a validation and custom validation, rule if i going to add a state its want to check with a function checkStates() if the data is present then its validation want to fail, how to do this please help me.

public function validation() {

     $this->validate(new PresenceOf(array(
            "field"   => "State",
            'message' => 'The State is required',
            'with' => $this->checkStates($this)
        )));

    return $this->validationHasFailed() != true;

}

function checkStates($data){

    $parameters = $this->persistent->parameters;
    if (!is_array($parameters)) {
        $parameters = array();
    }
    $countryid=$data->CountryId;
    $State=$data->State;
    $parameters["conditions"] = 'CountryId = '.$countryid;
    $parameters["columns"] = 'id';
   $states = States::findFirst($parameters);

     if($states->id){
        return false; 
     }else{
          return true;
     }

}

Prasetyo · Answer 1 · 2015-07-15T10:08:42-07:00

as stated in doc here : https://docs.phalcon.io/en/latest/reference/validation.html you may create your custom validator

<?php

use Phalcon\Validation;
use Phalcon\Validation\Message;
use Phalcon\Validation\Validator;
use Phalcon\Validation\ValidatorInterface;

class CheckState extends Validator implements ValidatorInterface
{

    /**
     * Executes the validation
     *
     * @param Phalcon\Validation $validator
     * @param string $attribute
     * @return boolean
     */
    public function validate(Validation $validator, $attribute)
    {
        // If the attribute value is name we must stop the chain
        if ($attribute == 'name') {
            $validator->setOption('cancelOnFail', true);
        }

        //...
    }
}

auricurvy · Answer 2 · 2016-10-04T03:11:21-07:00

I think my question would fit nicely here.

I have done the custom validator, following the rules explained here, I have problem using it, singularly.

I have a form, so when I call form->isValid($data), my custom validator gets correctly called, but before getting to that part, because I have an Ajax component on my application, I would like to be able to use this custom Validator but only with one element of the form, so I was thinking to call the validate method from the custom validator directly, but always find problems with the $validator parameter.

Is there any example or something in the documentation that I have missed?

If I have a data that I want to validate with my custom validator? what should I pass as a first parameter?

If maybe somebody can point me on the right direction, it would be greatly appreciated.

https://docs.phalcon.io/en/latest/reference/validation.html On this examel of the IPValidator, there's no example of use case, so it's hard to understand how to aply the newly created validator.

Thanks,

Renée.

Edit:

As example with this Validator, if I wanted to try it

https://docs.phalcon.io/en/latest/api/Phalcon_Validation_Validator_File.html

and call directly the method validate, how would I do it? as a First parameter I should use FileValidator, and as a second parameter use 'file' (being the field i want to validate)? I would come like this:

$validation->validate(FIleValidator, 'file');

$validation is not an instance of FileValidator?

So i would have to give the object itself to the function validate?

Really I'm confused...thanks to anyone.

New Edit:

Sometimes I find the validate method public validate (Phalcon\Validation $validation, mixed $field) and other times I find:

public function validate($data = null, $entity = null) , which want the data to Validate so I dont know how to use this.