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File: manuscript/Working-with-Pimf_Util_Validator.md

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  Classes of Gjero Krsteski  >  PIMF  >  manuscript/Working-with-Pimf_Util_Validator.md  >  Download  
File: manuscript/Working-with-Pimf_Util_Validator.md
Role: Auxiliary data
Content type: text/markdown
Description: Auxiliary data
Class: PIMF
Framework for Web application development
Author: By
Last change:
Date: 5 months ago
Size: 1,464 bytes
 

Contents

Input Validator

Almost every interactive web application needs to validate data. For instance, a registration form probably requires the password to be confirmed. Maybe the e-mail address must be unique. Validations allow you to ensure that only valid data is saved in the database.

Common usage:

Validating incoming data to make sure data is in accordance to business logic rules is easy to do in PIMF.

`php // first we check the input-parameters which are send with GET http method. $validator = new Pimf\Util\Validator($this->request->fromGet());

if (!$validator->digit('id') || !$validator->value('id', '>', 0)) {
throw new Pimf\Controller\Exception('not valid entry for "id"');
}

`

Or factorise a validator by set of rules:

Even create a set of rules that will be used to validate each attribute of our model. In PIMF rules are defined in an array format. Let’s take a look:

`php $attributes = array( 'fname' => 'conan', 'age' => 33, 'birth' => '12-12-2040', 'monitor' => 'sonyT2000', );

$rules = array(
'fname'   => 'alpha|length[>,0]|lengthBetween[1,9]',
'age'     => 'digit|value[>,18]|value[==,33]',
'birth'   => 'length[>,0]|date[mm-dd-yyyy]',
'monitor' => 'alphaNumeric'
);

$validator = Pimf\Util\Validator\Factory::get($attributes, $rules);

//...
$validator->getErrors();
$validator->getErrorMessages();

`