/[drupal]/contributions/modules/customfilter/customfilter.module
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revision 1.3.2.1.2.16.2.19, Wed Jul 1 02:32:38 2009 UTC revision 1.3.2.1.2.16.2.20, Wed Jul 1 03:27:19 2009 UTC
# Line 1  Line 1 
1  <?php  <?php
2  // $Id: customfilter.module,v 1.3.2.1.2.16.2.18 2009/07/01 01:36:22 kiam Exp $  // $Id: customfilter.module,v 1.3.2.1.2.16.2.19 2009/07/01 02:32:38 kiam Exp $
3    
4  /**  /**
5   * @file   * @file
# Line 345  function customfilter_delete_rule($rid) Line 345  function customfilter_delete_rule($rid)
345   *   An array that describes the filter identified by $fid.   *   An array that describes the filter identified by $fid.
346   */   */
347  function customfilter_get_filter($fid) {  function customfilter_get_filter($fid) {
348    $filter = db_fetch_array(db_query("SELECT * FROM {customfilter_filters} WHERE fid = %d", $fid));    $filters = customfilter_get_filters(FALSE);
349    
350    return $filter;    return isset($filters[$fid]) ? $filters[$fid] : 0;
351  }  }
352    
353  /**  /**
354   * Get the list of filters from database.   * Get the list of filters.
355   *   *
356   * @param $fields   * @param $all
357   *   The fields to retrieve.   *   If TRUE, the function will return the list of filters as modified by
358   * @param $cond   *   third-party modules.
  *   The SQL condition that must be verified; by default, all results are  
  *   returned.  
  * @param $args  
  *   The array of arguments to pass to the query function.  
359   *   *
360   * @return   * @return
361   *   An array of filters.   *   An array of filters.
362   */   */
363  function customfilter_get_filters($all = TRUE) {  function customfilter_get_filters($all = TRUE) {
364    $filters = array();    static $db_filters;
   $query = "SELECT * FROM {customfilter_filters} ORDER BY name";  
365    
366    $result = db_query($query);    if (!isset($db_filters)) {
367    while ($filter = db_fetch_array($result)) {      $db_filters = array();
368      $filters[] = $filter;      $query = "SELECT * FROM {customfilter_filters} ORDER BY name";
369    
370        $result = db_query($query);
371        while ($filter = db_fetch_array($result)) {
372          $db_filters[] = $filter;
373        }
374    }    }
375    
376      $filters = $db_filters;
377    
378    if ($all) {    if ($all) {
379      drupal_alter('customfilter_filters', $filters);      drupal_alter('customfilter_filters', $filters);
380    }    }
# Line 381  function customfilter_get_filters($all = Line 383  function customfilter_get_filters($all =
383  }  }
384    
385  /**  /**
386   * Retrieve the replacement rules from the database table.   * Retrieve the replacement rules for a specific filter.
387   *   *
388   * @param $fid   * @param $fid
389   *   The filter ID.   *   The filter ID.
390   * @param $root   * @param $root
391   *   The root rule.   *   The root rule.
392   * @param $sortby   * @param $all
393   *   The database field used to sort the result; the default field used is the   *   If TRUE, the function will return the list of filters as modified by
394   *   weight field.   *   third-party modules.
  * @param $fields  
  *   The fields to retrieve.  
395   *   *
396   * @return   * @return
397   *   An array of rules, which include any subrules.   *   An array of rules, which include any subrules.
398   */   */
399  function customfilter_get_rules($fid, $root = 0, $all = TRUE) {  function customfilter_get_rules($fid, $root = 0, $all = TRUE) {
400      static $db_rules = array();
401    
402      $cid = $fid . $root;
403    
404      if (!isset($db_rules[$cid])) {
405        $db_rules[$cid] = _customfilter_get_rules($fid, $root);
406      }
407    
408      $rules = $db_rules[$cid];
409    
410      if ($all) {
411        drupal_alter('customfilter_rules', $rules, $fid, $root);
412      }
413    
414      return $rules;
415    }
416    
417    /*****************************************************************************
418     * Private functions.
419     ****************************************************************************/
420    
421    /**
422     * Retrieve the replacement rules for a specific filter.
423     *
424     * @param $fid
425     *   The filter ID.
426     * @param $root
427     *   The root rule.
428     *
429     * @return
430     *   An array of rules, which include any subrules.
431     */
432    function _customfilter_get_rules($fid, $root) {
433    $rules = array();    $rules = array();
434    
435    $result = db_query("SELECT * FROM {customfilter_rules} WHERE fid = %d and prid = %d ORDER BY weight", $fid, $root);    $result = db_query("SELECT * FROM {customfilter_rules} WHERE fid = %d and prid = %d ORDER BY weight", $fid, $root);
436    
437    while ($rule = db_fetch_array($result)) {    while ($rule = db_fetch_array($result)) {
438      $rule['sub'] = customfilter_get_rules($fid, $rule['rid']);      $rule['sub'] = _customfilter_get_rules($fid, $rule['rid']);
439    
440      // Create an anonymous function if the replacement string is PHP code.      // Create an anonymous function if the replacement string is PHP code.
441      if ($rule['code']) {      if ($rule['code']) {
# Line 412  function customfilter_get_rules($fid, $r Line 445  function customfilter_get_rules($fid, $r
445      $rules[$rule['rid']] = $rule;      $rules[$rule['rid']] = $rule;
446    }    }
447    
   if ($all) {  
     drupal_alter('customfilter_rules', $rules);  
   }  
   
448    return $rules;    return $rules;
449  }  }
450    
 /*****************************************************************************  
  * Private functions.  
  ****************************************************************************/  
   
451  /**  /**
452   * Return an object that contains the global variables used during the   * Return an object that contains the global variables used during the
453   * execution of a rule.   * execution of a rule.
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