mods/_core/imsafa/classes/A4aExport.class.php

   1 <?php
   2 /****************************************************************/
   3 /* ATutor                                                                                                               */
   4 /****************************************************************/
   5 /* Copyright (c) 2002-2009                                                                              */
   6 /* Inclusive Design Institute                                   */
   7 /* http://atutor.ca                                                                                             */
   8 /*                                                              */
   9 /* This program is free software. You can redistribute it and/or*/
  10 /* modify it under the terms of the GNU General Public License  */
  11 /* as published by the Free Software Foundation.                                */
  12 /****************************************************************/
  13 // $Id: A4aExport.class.php 8804 2009-09-29 21:17:00Z hwong $
  14
  15 require_once(AT_INCLUDE_PATH.'../mods/_core/imsafa/classes/A4a.class.php');
  16 //require(AT_INCLUDE_PATH.'classes/zipfile.class.php'); // for zipfile
  17
  18 /**
  19  * Accessforall Export class.
  20  * Based on the specification at:
  21  *              http://www.imsglobal.org/accessibility/index.html
  22  *
  23  * @date        Oct 3rd, 2008
  24  * @author      Harris Wong
  25  */
  26 class A4aExport extends A4a {
  27         var $original_files = array();  //store all the primary/original resources in [id]=>[incrementer]=>[resource, language, type]
  28 //      var $alternative_files = array();       //secondary files aka. alternative, equivalent
  29
  30         /**
  31          * Get information for this content
  32          * @return the xml content
  33          */
  34         function getAlternative(){
  35                 $resources = parent::getPrimaryResources();
  36                 foreach($resources as $rid => $prop){
  37                         $resources_types = parent::getPrimaryResourcesTypes($rid);
  38                         $temp = array();
  39                         $secondary_array = array();
  40                         foreach($resources_types as $rtid){
  41                                 $sec_resources['secondary_resources'] = parent::getSecondaryResources($rid);
  42                                 //determine secondary resource type
  43                                 foreach ($sec_resources['secondary_resources'] as $sec_id => $sec_resource){
  44                                         $current_sec_file = $sec_resource['resource'];
  45                                         $secondary_array['secondary_resources'][] = $current_sec_file ;
  46                                         //add to secondary file array if it's not there
  47                                         if (!isset($this->original_files[$current_sec_file]) || empty($this->original_files[$current_sec_file]) ){
  48                                                 //TODO merge these values i think
  49                                                 $this->original_files[$current_sec_file ] = $sec_resource;
  50                                                 $this->original_files[$current_sec_file ]['resource_type'][$prop['resource']][] = parent::getSecondaryResourcesTypes($sec_id);
  51                                         } else {
  52                                                 $this->original_files[$current_sec_file ]['resource_type'][$prop['resource']][] = parent::getSecondaryResourcesTypes($sec_id);
  53                                         }
  54                                         //add this primary file ref, and the resources type to the secondary file
  55                                         $this->original_files[$current_sec_file]['primary_resources'][$prop['resource']] = $rtid;
  56 //                                      $this->original_files[$current_sec_file]['primary_resources'][$prop['resource']]['language_code'] = $sec_resource['language_code'];
  57                                 }
  58                         }
  59                         $res_type['resource_type'] = $rtid;     //could be 1+
  60                         $temp = array_merge($prop, $res_type, $secondary_array);
  61
  62                         if (isset($this->original_files[$temp['resource']])){
  63                                 //use the existing temp array values, but merge in the secondary_array
  64                                 $temp = array_merge($this->original_files[$temp['resource']], $secondary_array);
  65                         }
  66                         if(!empty($temp)){
  67                                 $this->original_files[$temp['resource']] = $temp;
  68         //                      debug($this->original_files['7dolomiti_1a_como1e_como_road1b.jpg'], $rid);
  69                         }
  70                 }
  71                 return $this->original_files;
  72         }
  73
  74         /**
  75          * Get all secondary files
  76          * @return array of secondary files that is being used in this->content.
  77          */
  78         function getAllSecondaryFiles(){
  79                 global $db;
  80                 $secondary_files = array();
  81
  82                 $sql = "SELECT DISTINCT secondary_resource FROM ".TABLE_PREFIX."primary_resources a LEFT JOIN ".TABLE_PREFIX."secondary_resources s
  83                                 ON a.primary_resource_id = s.primary_resource_id WHERE content_id=".$this->cid;
  84                 $result = mysql_query ($sql);
  85                 if ($result){
  86                         while ($row = mysql_fetch_assoc($result)){
  87                                 if (!empty($row['secondary_resource'])){
  88                                         $secondary_files[] = $row['secondary_resource'];
  89                                 }
  90                         }
  91                 }
  92                 return $secondary_files;
  93         }
  94
  95         // Save all the xml into an array.
  96         // key=filename, value=xml content
  97         function exportA4a(){
  98                 global $savant;
  99
 100                 $xml_array = array();   //array of xml
 101
 102                 // Get the alt content first.
 103                 $this->getAlternative();
 104
 105                 // Get original files' xml
 106                 foreach($this->original_files as $id=>$resource){
 107                         $orig_access_mode = array();
 108                         foreach($resource['resource_type'] as $type_id){
 109                                 if (!is_array($type_id)){
 110                                         //primary resource will always have just on type
 111                                         $orig_access_mode[] = $this->getResourceNameById($type_id);
 112                                 } else {
 113                                         foreach($type_id as $k=>$type_id2){
 114                                                 $orig_access_mode[] = $this->getResourceNameById($type_id2[0]);
 115                                         }
 116                                 }
 117                         }
 118                         $savant->assign('relative_path', $this->relative_path); //the template will need the relative path
 119                         $savant->assign('orig_access_mode', $orig_access_mode);
 120                         $savant->assign('language_code', $resource['language_code']);
 121                         $savant->assign('secondary_resources', $resource['secondary_resources']);
 122
 123                         // If this is an alternative, and it is mapping to
 124                         // 1+ original files.  Each of these mapping requires
 125                         // its own xml
 126                         if(isset($resource['primary_resources'])){
 127                                 foreach($resource['primary_resources'] as $uri=>$pri_resource_types){
 128                                         $savant->assign('primary_resource_uri', $uri);
 129                                         $savant->assign('primary_resources', $pri_resource_types);
 130                                         //A file can be both original and alternative, and each could represent diff language
 131                                         //Tried to resolve but the A4a v.2 only accept 1 language
 132 //                                      $savant->assign('language_code', $pri_resource_types['language_code']);
 133                                         //overwrite orig_access_mode
 134                                         $orig_access_mode = array(); //reinitialize
 135                                         foreach($resource['resource_type'][$uri] as $type_id){
 136                                                 $orig_access_mode[] = $this->getResourceNameById($type_id);
 137                                                 $savant->assign('orig_access_mode', $orig_access_mode);
 138                                                 $xml_array[$id.' to '.$uri][] = $savant->fetch(AT_INCLUDE_PATH.'../mods/_core/imsafa/classes/A4a.tmpl.php');
 139                                         }
 140
 141                                 }
 142                         } else {
 143                                 $savant->assign('primary_resource_uri', '');
 144                                 $savant->assign('primary_resources', '');
 145                                 $xml_array[$id] = $savant->fetch(AT_INCLUDE_PATH.'../mods/_core/imsafa/classes/A4a.tmpl.php');
 146                         }
 147                 }
 148                 return $xml_array;
 149         }
 150
 151         /**
 152          * Get resource name by id
 153          * @return      array
 154          */
 155         function getResourceNameById($type_id){
 156                 $orig_access_mode = '';
 157                 if (is_array($type_id)) {
 158                         $type_id = $type_id[0];
 159                 }
 160                 switch($type_id){
 161                         case 1:
 162                                 $orig_access_mode = 'auditory';
 163                                 break;
 164                         case 3:
 165                                 $orig_access_mode = 'textual';
 166                                 break;
 167                         case 2:
 168                                 $orig_access_mode = 'sign_language';
 169                                 break;
 170                         case 4:
 171                                 $orig_access_mode = 'visual';
 172                                 break;
 173                         default:
 174                                 $orig_access_mode = '';
 175                 }
 176                 return $orig_access_mode;
 177         }
 178
 179 }
 180
 181 ?>