search.php

   1 <?php\r
   2 /************************************************************************/\r
   3 /* AContent                                                             */\r
   4 /************************************************************************/\r
   5 /* Copyright (c) 2010                                                   */\r
   6 /* Inclusive Design Institute                                           */\r
   7 /*                                                                      */\r
   8 /* This program is free software. You can redistribute it and/or        */\r
   9 /* modify it under the terms of the GNU General Public License          */\r
  10 /* as published by the Free Software Foundation.                        */\r
  11 /************************************************************************/\r
  12 \r
  13 /*\r
  14  * This is the web service interface to search AContent  and return\r
  15  * search results in REST\r
  16  * Expected parameters:\r
  17  * id: to identify the user. must be given\r
  18  * keywords: The keywords to search for. must be given\r
  19  * start: start receiving from this record number, 0 if not specified\r
  20  * maxResults: Number of results desired, 10 if not specified\r
  21  */\r
  22 \r
  23 define('TR_INCLUDE_PATH', 'include/');\r
  24 \r
  25 include(TR_INCLUDE_PATH.'vitals.inc.php');\r
  26 include_once(TR_INCLUDE_PATH. 'classes/Utility.class.php');\r
  27 include_once(TR_INCLUDE_PATH. 'classes/DAO/UsersDAO.class.php');\r
  28 include_once(TR_INCLUDE_PATH. 'classes/DAO/CoursesDAO.class.php');\r
  29 include_once(TR_INCLUDE_PATH. 'classes/RESTWebServiceOutput.class.php');\r
  30 \r
  31 $keywords = trim(urldecode($_REQUEST['keywords']));\r
  32 $web_service_id = trim($_REQUEST['id']);\r
  33 $start = intval(trim(strtolower($_REQUEST['start'])));\r
  34 $maxResults = intval(trim(strtolower($_REQUEST['maxResults'])));\r
  35 \r
  36 if ($maxResults == 0) $maxResults = 10;  // default\r
  37 \r
  38 // validate parameters\r
  39 if ($keywords == '')\r
  40 {\r
  41         $errors[] = 'TR_ERROR_EMPTY_KEYWORDS';\r
  42 }\r
  43 \r
  44 if ($web_service_id == '')\r
  45 {\r
  46         $errors[] = 'TR_ERROR_EMPTY_WEB_SERVICE_ID';\r
  47 }\r
  48 else\r
  49 { // validate web service id\r
  50         $usersDAO = new UsersDAO();\r
  51         $user_row = $usersDAO->getUserByWebServiceID($web_service_id);\r
  52 \r
  53         if (!$user_row) $errors[] = 'TR_ERROR_INVALID_WEB_SERVICE_ID';\r
  54         \r
  55         $user_id = $user_row['user_id'];\r
  56 }\r
  57 \r
  58 // return errors\r
  59 if (is_array($errors))\r
  60 {\r
  61         echo RESTWebServiceOutput::generateErrorRpt($errors);\r
  62         exit;\r
  63 }\r
  64 \r
  65 $coursesDAO = new CoursesDAO();\r
  66 $results = $coursesDAO->getSearchResult($addslashes($keywords), '', $start, $maxResults);\r
  67 \r
  68 // get total number of search results regardless of $maxResults\r
  69 $all_results = $coursesDAO->getSearchResult($addslashes($keywords));\r
  70 if (is_array($all_results)) $total_num = count($all_results);\r
  71 else $total_num = 0;\r
  72 \r
  73 // calculate the last record number\r
  74 if (is_array($results))\r
  75 {\r
  76         $num_of_results = count($results);\r
  77         \r
  78         if ($maxResults > $num_of_results) $last_rec_number = $start + $num_of_results;\r
  79         else $last_rec_number = $start + $maxResults;\r
  80 }\r
  81 else $last_rec_number = $total_num;\r
  82 \r
  83 //debug($results);exit;\r
  84 $restWebServiceOutput = new RESTWebServiceOutput($results, $total_num, $last_rec_number);\r
  85 echo $restWebServiceOutput->getWebServiceOutput();\r
  86 ?>\r