<?php

  require_once("$CFG->dirroot/search/documents/document.php");
  
  class ResourceSearchDocument extends SearchDocument {  
    public function __construct(&$resource) {
      // generic information; required
      $doc->docid     = $resource['id'];
      $doc->title     = strip_tags($resource['name']);
      $doc->date      = $resource['timemodified'];
                      
      $doc->author    = '';
      $doc->contents  = strip_tags($resource['summary']).' '.strip_tags($resource['alltext']);
      $doc->url       = resource_make_link($resource['id']);      
      
      // module specific information; optional
      $data = array();
      
      // construct the parent class
      parent::__construct($doc, $data, SEARCH_TYPE_RESOURCE, $resource['course'], -1);
    } //constructor    
  } //ResourceSearchDocument  

  function resource_make_link($resource_id) {
    global $CFG;    
    return $CFG->wwwroot.'/mod/resource/view.php?r='.$resource_id;    
  } //resource_make_link
    
  function resource_iterator() {
    //trick to leave search indexer functionality intact, but allow
    //this document to only use the below function to return info
    //to be searched
    return array(true);   
  } //resource_iterator
  
  //this function does not need a content iterator, returns all the info
  //itself; remember to fake the iterator array though
  function resource_get_content_for_index(&$notneeded) {
    $documents = array();
    
    $resources = get_recordset_sql('SELECT *
                              FROM `resource`
                              WHERE alltext NOT LIKE ""
                              AND alltext NOT LIKE " "
                              AND alltext NOT LIKE "&nbsp;"
                              AND TYPE != "file"');       
    
    while (!$resources->EOF) {
      $resource = $resources->fields;
      
      if ($resource) {
        $documents[] = new ResourceSearchDocument($resource);
      } //if
      
      $resources->MoveNext();
    } //foreach
    
    return $documents;
  } //resource_get_content_for_index
  
?>