blocks/search/block_search.php

   1 <?php
   2
   3   /* This is the global search shortcut block - a single query can be entered, and
   4      the user will be redirected to the query page where they can enter more
   5      advanced queries, and view the results of their search. When searching from
   6      this block, the broadest possible selection of documents is searched.
   7
   8      Author:  Michael Champanis (mchampan)
   9      Date:    2006 06 25
  10
  11      Todo: make strings -> get_string()
  12   */
  13
  14   class block_search extends block_base {
  15
  16     function init() {
  17       $this->title = get_string('blockname', 'block_search');
  18       $this->cron = 1;
  19       $this->version = 2007071302;
  20     } //init
  21
  22     // only one instance of this block is required
  23     function instance_allow_multiple() {
  24       return false;
  25     } //instance_allow_multiple
  26
  27     // label and button values can be set in admin
  28     function has_config() {
  29       return true;
  30     } //has_config
  31
  32     function get_content() {
  33       global $CFG;
  34
  35       if (empty($CFG->enableglobalsearch)) {
  36         return '';
  37       }
  38
  39       //cache block contents
  40       if ($this->content !== NULL) {
  41         return $this->content;
  42       } //if
  43
  44       $this->content = new stdClass;
  45
  46       //lazy check for the moment
  47       if (check_php_version("5.0.0")) {
  48         //fetch values if defined in admin, otherwise use defaults
  49         $label  = (isset($CFG->block_search_text)) ? $CFG->block_search_text : get_string('searchmoodle', 'block_search');
  50         $button = (isset($CFG->block_search_button)) ? $CFG->block_search_button : get_string('go', 'block_search');
  51
  52         //basic search form
  53         $this->content->text =
  54             '<form id="searchquery" method="get" action="'. $CFG->wwwroot .'/search/query.php"><div>'
  55           . '<label for="block_search_q">'. $label .'</label>'
  56           . '<input id="block_search_q" type="text" name="query_string" />'
  57           . '<input type="submit" value="'.$button.'" />'
  58           . '</div></form>';
  59       } else {
  60         $this->content->text = "Sorry folks, PHP 5 is needed for the new search module.";
  61       } //else
  62
  63       //no footer, thanks
  64       $this->content->footer = '';
  65
  66       return $this->content;
  67     } //get_content
  68
  69     function specialisation() {
  70       //empty!
  71     } //specialisation
  72
  73     /**
  74     * wraps up to search engine cron
  75     *
  76     */
  77     function cron(){
  78         global $CFG;
  79
  80         include($CFG->dirroot.'/search/cron.php');
  81     }
  82
  83   } //block_search
  84
  85 ?>