interface/modules/zend_modules/library/Zend/Form/Element/Number.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6  * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   http://framework.zend.com/license/new-bsd New BSD License
   8  */
   9
  10 namespace Zend\Form\Element;
  11
  12 use Zend\Form\Element;
  13 use Zend\I18n\Validator\Float as NumberValidator;
  14 use Zend\InputFilter\InputProviderInterface;
  15 use Zend\Validator\GreaterThan as GreaterThanValidator;
  16 use Zend\Validator\LessThan as LessThanValidator;
  17 use Zend\Validator\Step as StepValidator;
  18
  19 class Number extends Element implements InputProviderInterface
  20 {
  21     /**
  22      * Seed attributes
  23      *
  24      * @var array
  25      */
  26     protected $attributes = array(
  27         'type' => 'number',
  28     );
  29
  30     /**
  31      * @var array
  32      */
  33     protected $validators;
  34
  35     /**
  36      * Get validator
  37      *
  38      * @return \Zend\Validator\ValidatorInterface[]
  39      */
  40     protected function getValidators()
  41     {
  42         if ($this->validators) {
  43             return $this->validators;
  44         }
  45
  46         $validators = array();
  47         $validators[] = new NumberValidator(array(
  48             'locale' => 'en_US', // HTML5 uses "100.01" format
  49         ));
  50
  51         $inclusive = true;
  52         if (!empty($this->attributes['inclusive'])) {
  53             $inclusive = $this->attributes['inclusive'];
  54         }
  55
  56         if (isset($this->attributes['min'])) {
  57             $validators[] = new GreaterThanValidator(array(
  58                 'min' => $this->attributes['min'],
  59                 'inclusive' => $inclusive
  60             ));
  61         }
  62         if (isset($this->attributes['max'])) {
  63             $validators[] = new LessThanValidator(array(
  64                 'max' => $this->attributes['max'],
  65                 'inclusive' => $inclusive
  66             ));
  67         }
  68
  69         if (!isset($this->attributes['step'])
  70             || 'any' !== $this->attributes['step']
  71         ) {
  72             $validators[] = new StepValidator(array(
  73                 'baseValue' => (isset($this->attributes['min']))  ? $this->attributes['min'] : 0,
  74                 'step'      => (isset($this->attributes['step'])) ? $this->attributes['step'] : 1,
  75             ));
  76         }
  77
  78         $this->validators = $validators;
  79         return $this->validators;
  80     }
  81
  82     /**
  83      * Provide default input rules for this element
  84      *
  85      * Attaches a number validator, as well as a greater than and less than validators
  86      *
  87      * @return array
  88      */
  89     public function getInputSpecification()
  90     {
  91         return array(
  92             'name' => $this->getName(),
  93             'required' => true,
  94             'filters' => array(
  95                 array('name' => 'Zend\Filter\StringTrim')
  96             ),
  97             'validators' => $this->getValidators(),
  98         );
  99     }
 100 }