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   1  <?php
   2  //--------------------------------------------------------------------------------
   3  // Copyright 2003 Procata, Inc.
   4  // Released under the LGPL license (http://www.gnu.org/copyleft/lesser.html)
   5  //--------------------------------------------------------------------------------
   6  /**
   7  * @package WACT_VALIDATION
   8  * @version $Id: validator.inc.php,v 1.29 2004/11/16 01:55:37 jeffmoore Exp $
   9  */
  10  //--------------------------------------------------------------------------------
  11  
  12  /**
  13  * Performs the validation checks against the Rules
  14  * @see http://wact.sourceforge.net/index.php/Validator
  15  * @see http://wact.sourceforge.net/index.php/Rule
  16  * @access public
  17  * @package WACT_VALIDATION
  18  */
  19  class Validator {
  20      /**
  21      * Indexed array of Rule objects
  22      * @see Rule
  23      * @var array
  24      * @access private
  25      */
  26      var $rules = array();
  27      /**
  28      * Instance of ErrorList
  29      * @see ErrorList
  30      * @var ErrorList
  31      * @access private
  32      */
  33      var $ErrorList;
  34      /**
  35      * Whether the validation process was valid
  36      * @var boolean
  37      * @access private
  38      */
  39      var $IsValid = TRUE;
  40  
  41      /**
  42      * Initalize Error List
  43      * @param Rule
  44      * @return void
  45      * @access protected
  46      */
  47      function &createErrorList() {
  48          require_once WACT_ROOT . 'validation/errorlist.inc.php';
  49          return new ErrorList();
  50      }
  51  
  52      /**
  53      * Registers a Rule
  54      * @param Rule
  55      * @return void
  56      * @access public
  57      */
  58      function addRule(&$Rule) {
  59          $this->rules[] = $Rule;
  60      }
  61  
  62      /**
  63      * Returns the ErrorList
  64      * @return ErrorList
  65      * @access public
  66      */
  67      function &getErrorList() {
  68          return $this->ErrorList;
  69      }
  70  
  71      /**
  72      * Whether the validation process was valid
  73      * @param string fieldname (default=NULL) unused
  74      * @return boolean TRUE if valid
  75      * @access public
  76      */
  77      function IsValid($FieldName = NULL) {
  78          return $this->IsValid;
  79      }
  80  
  81      /**
  82      * Perform the validation
  83      * @param DataSpace subclass of DataSpace to validate
  84      * @return void
  85      * @access public
  86      */
  87      function validate(&$DataSource) {
  88          $ErrorList =& $this->createErrorList();
  89          foreach( array_keys($this->rules) as $key) {
  90              if (! $this->rules[$key]->validate($DataSource, $ErrorList)) {
  91                  $this->IsValid = FALSE;
  92              }
  93          }
  94  
  95          $this->ErrorList =& $ErrorList;
  96      }
  97  }
  98  
  99  ?>