docs/include/classes/A4a/A4aExport.class.php

   1 <?php
   2 /************************************************************************/
   3 /* AContent                                                             */
   4 /************************************************************************/
   5 /* Copyright (c) 2010                                                   */
   6 /* Inclusive Design Institute                                           */
   7 /*                                                                      */
   8 /* This program is free software. You can redistribute it and/or        */
   9 /* modify it under the terms of the GNU General Public License          */
  10 /* as published by the Free Software Foundation.                        */
  11 /************************************************************************/
  12
  13 require_once(TR_INCLUDE_PATH.'classes/A4a/A4a.class.php');
  14 //require(TR_INCLUDE_PATH.'classes/zipfile.class.php'); // for zipfile
  15
  16 /**
  17  * Accessforall Export class.
  18  * Based on the specification at:
  19  *              http://www.imsglobal.org/accessibility/index.html
  20  *
  21  * @date        Oct 3rd, 2008
  22  * @author      Harris Wong
  23  */
  24 class A4aExport extends A4a {
  25         var $original_files = array();  //store all the primary/original resources in [id]=>[incrementer]=>[resource, language, type]
  26 //      var $alternative_files = array();       //secondary files aka. alternative, equivalent
  27
  28         /**
  29          * Get information for this content
  30          * @return the xml content
  31          */
  32         function getAlternative(){
  33                 $resources = parent::getPrimaryResources();
  34
  35                 foreach($resources as $rid => $prop){
  36                         $resources_types = parent::getPrimaryResourcesTypes($rid);
  37             if (empty($resources_types)){
  38                 //if there are no resource types, then don't use it.
  39                 continue;
  40             }
  41                         $temp = array();
  42                         $secondary_array = array();
  43                         foreach($resources_types as $rtid){
  44                                 $sec_resources['secondary_resources'] = parent::getSecondaryResources($rid);
  45                                 //determine secondary resource type
  46                                 foreach ($sec_resources['secondary_resources'] as $sec_id => $sec_resource){
  47                                         $current_sec_file = $sec_resource['resource'];
  48                                         $secondary_array['secondary_resources'][] = $current_sec_file ;
  49
  50                                         //add to secondary file array if it's not there
  51                                         if (!isset($this->original_files[$current_sec_file]) || empty($this->original_files[$current_sec_file]) ){
  52                                                 //TODO merge these values i think
  53                                                 $this->original_files[$current_sec_file ] = $sec_resource;
  54                                                 $this->original_files[$current_sec_file ]['resource_type'][$prop['resource']] = parent::getSecondaryResourcesTypes($sec_id);
  55                                         } else {
  56                                                 $this->original_files[$current_sec_file ]['resource_type'][$prop['resource']] = parent::getSecondaryResourcesTypes($sec_id);
  57                                         }
  58                                         //add this primary file ref, and the resources type to the secondary file
  59                                         $this->original_files[$current_sec_file]['primary_resources'][$prop['resource']] = $rtid;
  60 //                                      $this->original_files[$current_sec_file]['primary_resources'][$prop['resource']]['language_code'] = $sec_resource['language_code'];
  61                                         }
  62                                 }
  63                                 $res_type['resource_type'] = $rtid;     //could be 1+
  64                                 $temp = array_merge($prop, $res_type, $secondary_array);
  65                                 if (isset($this->original_files[$temp['resource']])){
  66                                         //use the existing temp array values, but merge in the secondary_array
  67                                         $temp = array_merge($this->original_files[$temp['resource']], $secondary_array);
  68                         }
  69                         if (!empty($temp)){
  70                                 $this->original_files[$temp['resource']] = $temp;
  71                         }
  72                 }
  73                 return $this->original_files;
  74         }
  75
  76         /**
  77          * Get all secondary files
  78          * @return array of secondary files that is being used in this->content.
  79          */
  80         function getAllSecondaryFiles(){
  81                 global $db;
  82                 $secondary_files = array();
  83
  84                 include_once(TR_INCLUDE_PATH.'classes/DAO/SecondaryResourcesDAO.class.php');
  85                 $secondaryResourcesDAO = new SecondaryResourcesDAO();
  86                 $rows = $secondaryResourcesDAO->getByContent($this->cid);
  87 //              $sql = "SELECT DISTINCT secondary_resource FROM ".TABLE_PREFIX."primary_resources a LEFT JOIN ".TABLE_PREFIX."secondary_resources s
  88 //                              ON a.primary_resource_id = s.primary_resource_id WHERE content_id=".$this->cid;
  89 //              $result = mysql_query ($sql);
  90
  91                 if (is_array($rows)){
  92                         foreach ($rows as $row) {
  93                                 if (!empty($row['secondary_resource'])){
  94                                         $secondary_files[] = $row['secondary_resource'];
  95                                 }
  96                         }
  97                 }
  98                 return $secondary_files;
  99         }
 100
 101         // Save all the xml into an array.
 102         // key=filename, value=xml content
 103         function exportA4a(){
 104                 global $savant;
 105
 106                 $xml_array = array();   //array of xml
 107
 108                 // Get the alt content first.
 109                 $this->getAlternative();
 110
 111                 // Get original files' xml
 112                 foreach($this->original_files as $id=>$resource){
 113                         $orig_access_mode = array();
 114
 115                         foreach($resource['resource_type'] as $type_id){
 116                                 if (!is_array($type_id)){
 117                                         //primary resource will always have just on type
 118                                         $orig_access_mode[] = $this->getResourceNameById($type_id);
 119                                 } else {
 120                                         foreach($type_id as $k=>$type_id2){
 121                                                 $orig_access_mode[] = $this->getResourceNameById($type_id2[0]);
 122                                         }
 123                                 }
 124                         }
 125                         $savant->assign('relative_path', $this->relative_path); //the template will need the relative path
 126                         $savant->assign('orig_access_mode', $orig_access_mode);
 127                         $savant->assign('language_code', $resource['language_code']);
 128                         $savant->assign('secondary_resources', $resource['secondary_resources']);
 129
 130                         // If this is an alternative, and it is mapping to
 131                         // 1+ original files.  Each of these mapping requires
 132                         // its own xml
 133                         if(isset($resource['primary_resources'])){
 134                                 foreach($resource['primary_resources'] as $uri=>$pri_resource_types){
 135                                         $savant->assign('primary_resource_uri', $uri);
 136                                         $savant->assign('primary_resources', $pri_resource_types);
 137                                         //A file can be both original and alternative, and each could represent diff language
 138                                         //Tried to resolve but the A4a v.2 only accept 1 language
 139 //                                      $savant->assign('language_code', $pri_resource_types['language_code']);
 140                                         //overwrite orig_access_mode
 141                                         $orig_access_mode = array(); //reinitialize
 142                                         foreach($resource['resource_type'][$uri] as $type_id){
 143                                                 $orig_access_mode[] = $this->getResourceNameById($type_id);
 144                                                 $savant->assign('orig_access_mode', $orig_access_mode);
 145                                                 $xml_array[$id.' to '.$uri][] = $savant->fetch(TR_INCLUDE_PATH.'classes/A4a/A4a.tmpl.php');
 146                                         }
 147                                 }
 148                         } else {
 149                                 $savant->assign('primary_resource_uri', '');
 150                                 $savant->assign('primary_resources', '');
 151                                 $xml_array[$id] = $savant->fetch(TR_INCLUDE_PATH.'classes/A4a/A4a.tmpl.php');
 152                         }
 153                 }
 154                 return $xml_array;
 155         }
 156
 157         /**
 158          * Get resource name by id
 159          * @return      array
 160          */
 161         function getResourceNameById($type_id){
 162                 $orig_access_mode = '';
 163                 if (is_array($type_id)) {
 164                         $type_id = $type_id[0];
 165                 }
 166                 switch($type_id){
 167                         case 1:
 168                                 $orig_access_mode = 'auditory';
 169                                 break;
 170                         case 3:
 171                                 $orig_access_mode = 'textual';
 172                                 break;
 173                         case 2:
 174                                 $orig_access_mode = 'sign_language';
 175                                 break;
 176                         case 4:
 177                                 $orig_access_mode = 'visual';
 178                                 break;
 179                         default:
 180                                 $orig_access_mode = '';
 181                 }
 182                 return $orig_access_mode;
 183         }
 184
 185 }
 186
 187 ?>