lib/Validators.php

   1 <?php
   2 /*
   3   +---------------------------------------------------------------------------------+
   4   | Copyright (c) 2010 ActiveMongo                                                  |
   5   +---------------------------------------------------------------------------------+
   6   | Redistribution and use in source and binary forms, with or without              |
   7   | modification, are permitted provided that the following conditions are met:     |
   8   | 1. Redistributions of source code must retain the above copyright               |
   9   |    notice, this list of conditions and the following disclaimer.                |
  10   |                                                                                 |
  11   | 2. Redistributions in binary form must reproduce the above copyright            |
  12   |    notice, this list of conditions and the following disclaimer in the          |
  13   |    documentation and/or other materials provided with the distribution.         |
  14   |                                                                                 |
  15   | 3. All advertising materials mentioning features or use of this software        |
  16   |    must display the following acknowledgement:                                  |
  17   |    This product includes software developed by César D. Rodas.                  |
  18   |                                                                                 |
  19   | 4. Neither the name of the César D. Rodas nor the                               |
  20   |    names of its contributors may be used to endorse or promote products         |
  21   |    derived from this software without specific prior written permission.        |
  22   |                                                                                 |
  23   | THIS SOFTWARE IS PROVIDED BY CÉSAR D. RODAS ''AS IS'' AND ANY                   |
  24   | EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED       |
  25   | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE          |
  26   | DISCLAIMED. IN NO EVENT SHALL CÉSAR D. RODAS BE LIABLE FOR ANY                  |
  27   | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES      |
  28   | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;    |
  29   | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND     |
  30   | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT      |
  31   | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS   |
  32   | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE                     |
  33   +---------------------------------------------------------------------------------+
  34   | Authors: César Rodas <crodas@php.net>                                           |
  35   +---------------------------------------------------------------------------------+
  36 */
  37
  38 /**
  39  *  Default validators
  40  *
  41  *
  42  */
  43 class ActiveMongo_Validators
  44 {
  45
  46     final private static function _hook($action, $method)
  47     {
  48         ActiveMongo::addEvent($action, array(__CLASS__, $method));
  49     }
  50
  51     final public static function init()
  52     {
  53         self::_hook("before_validate_creation", "presence_of_creation");
  54         self::_hook("before_validate_update", "presence_of_update");
  55         self::_hook("before_validate", "length_of");
  56     }
  57
  58     // validates_length_of {{{
  59     final static function length_of($class, $obj)
  60     {
  61         $validates = array();
  62
  63         if (isset($class::$validates_size_of)) {
  64             $validates = $class::$validates_size_of;
  65         } else if (isset($class::$validates_length_of)) {
  66             $validates = $class::$validates_length_of;
  67         }
  68
  69         foreach ($validates as $property) {
  70             $name = $property[0];
  71
  72             if (isset($obj[$name])) {
  73                 $prop = $obj[$name];
  74             }
  75
  76             if (isset($obj['$set'][$name])) {
  77                 $prop = $obj['$set'][$name];
  78             }
  79
  80             if (isset($prop)) {
  81                 if (isset($property['min']) && strlen($prop) < $property['min']) {
  82                     throw new ActiveMongo_FilterException("{$name} length is too short");
  83                 }
  84                 if (isset($property['is']) && strlen($prop) != $property['is']) {
  85                     throw new ActiveMongo_FilterException("{$name} length is different than expected");
  86                 }
  87                 if (isset($property['max']) && strlen($prop) > $property['max']) {
  88                     throw new ActiveMongo_FilterException("{$name} length is too large");
  89                 }
  90             }
  91         }
  92     }
  93     // }}}
  94
  95     // validates_presence_of {{{
  96     final static function presence_of_creation($class, $obj)
  97     {
  98         if (isset($class::$validates_presence_of)) {
  99             foreach ((Array)$class::$validates_presence_of as $property) {
 100                 if (!isset($obj[$property])) {
 101                     throw new ActiveMongo_FilterException("Missing required property {$property}");
 102                 }
 103             }
 104         }
 105     }
 106
 107     final static function presence_of_update($class, $obj)
 108     {
 109         if (isset($class::$validates_presence_of)) {
 110             foreach ((Array)$class::$validates_presence_of as $property) {
 111                 if (isset($obj['$unset'][$property])) {
 112                     throw new ActiveMongo_FilterException("Cannot delete required property {$property}");
 113                 }
 114             }
 115         }
 116     }
 117     // }}}
 118
 119 }
 120
 121 // Register validators
 122 ActiveMongo_Validators::init();
 123
 124 /*
 125  * Local variables:
 126  * tab-width: 4
 127  * c-basic-offset: 4
 128  * End:
 129  * vim600: sw=4 ts=4 fdm=marker
 130  * vim<600: sw=4 ts=4
 131  */