question/contextmoveq.php

   1 <?php // $Id$
   2 /**
   3  * Page for moving questions
   4  *
   5  * @author me@jamiep.org
   6  * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
   7  * @package questionbank
   8  */
   9
  10 // Includes.
  11 require_once(dirname(__FILE__) . '/../config.php');
  12 require_once(dirname(__FILE__) . '/editlib.php');
  13 require_once($CFG->dirroot.'/question/contextmoveq_form.php');
  14
  15 $ids = required_param('ids',PARAM_SEQUENCE); // question ids
  16
  17 if (!$cmid = optional_param('cmid', 0, PARAM_INT)){
  18     $courseid = required_param('courseid', PARAM_INT);
  19 }
  20
  21 $tocatid = required_param('tocatid', PARAM_INT);
  22 $returnurl = optional_param('returnurl', 0, PARAM_LOCALURL);
  23
  24 $thispageurl = new moodle_url();
  25 $thispageurl->params(compact('tocatid', 'ids', 'returnurl'));
  26
  27 if ($cmid){
  28     list($module, $cm) = get_module_from_cmid($cmid);
  29     require_login($cm->course, false, $cm);
  30     $thiscontext = get_context_instance(CONTEXT_MODULE, $cmid);
  31     if (!$returnurl) {
  32         $returnurl = "{$CFG->wwwroot}/question/edit.php?cmid={$cm->id}";
  33     }
  34     $thispageurl->param('cmid', $cmid);
  35 } elseif ($courseid) {
  36     require_login($courseid, false);
  37     $thiscontext = get_context_instance(CONTEXT_COURSE, $courseid);
  38     $module = null;
  39     $cm = null;
  40     if (!$returnurl) {
  41         $returnurl = "{$CFG->wwwroot}/question/edit.php?courseid={$COURSE->id}";
  42     }
  43     $thispageurl->param('courseid', $COURSE->id);
  44 } else {
  45     error('Need to pass courseid or cmid to this script.');
  46 }
  47
  48
  49 if (!$questions = get_records_sql("SELECT q.*, c.contextid FROM {$CFG->prefix}question q, {$CFG->prefix}question_categories c  WHERE q.id IN ($ids) AND c.id = q.category")) {
  50     print_error('questiondoesnotexist', 'question', $returnurl);
  51 }
  52 if (!$tocat = get_record('question_categories', 'id', $tocatid)){
  53     print_error('categorydoesnotexist', 'question', $returnurl);
  54 }
  55 $tocat->context = get_context_instance_by_id($tocat->contextid);
  56 require_capability('moodle/question:add', $tocat->context);
  57 $tocoursefilesid =  get_filesdir_from_context($tocat->context);
  58 $urls = array();
  59
  60 if ($tocoursefilesid == SITEID){
  61     $toareaname = get_string('filesareasite', 'question');
  62 } else {
  63     $toareaname = get_string('filesareacourse', 'question');
  64 }
  65 $fromcoursefilesid = 0;
  66 foreach (array_keys($questions) as $id){
  67     question_require_capability_on($questions[$id], 'move');
  68     get_question_options($questions[$id]);
  69     $questions[$id]->context = get_context_instance_by_id($questions[$id]->contextid);
  70     $thisfilesid =  get_filesdir_from_context($questions[$id]->context);
  71     if ($fromcoursefilesid && $thisfilesid != $fromcoursefilesid){
  72        error('You can\'t use this script to move questions that have files associated with them from different areas.');
  73     } else {
  74        $fromcoursefilesid =  $thisfilesid;
  75     }
  76     if ($tocoursefilesid != $fromcoursefilesid){
  77         $urls = array_merge_recursive($urls, $QTYPES[$questions[$id]->qtype]->find_file_links($questions[$id], $fromcoursefilesid));
  78     }
  79 }
  80
  81 $brokenurls = array();
  82 foreach (array_keys($urls) as $url){
  83     if (!file_exists($CFG->dataroot."/$fromcoursefilesid/".$url)){
  84         $brokenurls[] = $url;
  85     }
  86 }
  87 if ($fromcoursefilesid == SITEID){
  88     $fromareaname = get_string('filesareasite', 'question');
  89 } else {
  90     $fromareaname = get_string('filesareacourse', 'question');
  91 }
  92
  93 $contextmoveform = new question_context_move_question_form($thispageurl,
  94         compact('urls', 'fromareaname', 'toareaname', 'brokenurls',
  95                     'fromcoursefilesid', 'tocoursefilesid'));
  96 if ($contextmoveform->is_cancelled()){
  97     redirect($returnurl);
  98 }elseif ($moveformdata = $contextmoveform->get_data()) {
  99     if (isset($moveformdata->urls) && is_array($moveformdata->urls)){
 100         check_dir_exists($CFG->dataroot."/$tocoursefilesid/", true);
 101         $flipurls = array_keys($urls);
 102         //actions on files
 103         foreach ($moveformdata->urls as $key => $urlaction){
 104             $source = $CFG->dataroot."/$fromcoursefilesid/".$flipurls[$key];
 105             $destination = $flipurls[$key];
 106             if (($urlaction != QUESTION_FILEDONOTHING) && ($urlaction != QUESTION_FILEMOVELINKSONLY)){
 107                 while (file_exists($CFG->dataroot."/$tocoursefilesid/".$destination)){
 108                     $matches = array();
 109                     //check for '_'. copyno after filename, before extension.
 110                     if (preg_match('!\_([0-9]+)(\.[^\.\\/]+)?$!', $destination, $matches)){
 111                         $copyno = $matches[1]+1;
 112                     } else {
 113                         $copyno = 1;
 114                     }
 115                     //replace old copy no with incremented one.
 116                     $destination = preg_replace('!(\_[0-9]+)?(\.[^\.\\/]+)?$!', '_'.$copyno.'\\2', $destination, 1);
 117                 }
 118             }
 119             switch ($urlaction){
 120                 case QUESTION_FILECOPY :
 121                     if (!copy($source, $CFG->dataroot."/$tocoursefilesid/".$destination)){
 122                         print_error('errorfilecannotbecopied', 'question', $onerrorurl, $source);
 123                     }
 124                     break;
 125                 case QUESTION_FILEMOVE :
 126                     if (!rename($source, $CFG->dataroot."/$tocoursefilesid/".$destination)){
 127                         print_error('errorfilecannotbemoved', 'question', $onerrorurl, $source);
 128                     }
 129                     break;
 130                 case QUESTION_FILEMOVELINKSONLY :
 131                 case QUESTION_FILEDONOTHING :
 132                     break;
 133                 default :
 134                     error('Invalid action selected!', $onerrorurl);
 135             }
 136             //now search and replace urls in questions.
 137             switch ($urlaction){
 138                 case QUESTION_FILECOPY :
 139                 case QUESTION_FILEMOVE :
 140                 case QUESTION_FILEMOVELINKSONLY :
 141                     $url = $flipurls[$key];
 142                     $questionswithlinks = array_unique($urls[$url]);
 143                     foreach ($questionswithlinks as $questionid){
 144                         $QTYPES[$questions[$questionid]->qtype]->replace_file_links($questions[$questionid], $fromcoursefilesid, $tocoursefilesid, $url, $destination);
 145                     }
 146                     break;
 147                 case  QUESTION_FILEDONOTHING :
 148                     break;
 149                 default :
 150                     error('Invalid action selected!', $onerrorurl);
 151                     break;
 152             }
 153
 154
 155         }
 156     }
 157     //now move questions
 158     if (!execute_sql("UPDATE {$CFG->prefix}question SET category = {$tocat->id} WHERE id IN ({$ids})", false)){
 159         error("Could not move the questions {$ids} to category ".$tocat->name, $onerrorurl);
 160     }
 161     redirect($returnurl);
 162 }
 163
 164 $streditingcategories = get_string('editcategories', 'quiz');
 165 $crumbs = array();
 166 if ($cmid) {
 167     // Page header
 168     $context = get_context_instance(CONTEXT_MODULE, $cm->id);
 169     $strupdatemodule = has_capability('moodle/course:manageactivities', $context)
 170         ? update_module_button($cm->id, $COURSE->id, get_string('modulename', $cm->modname))
 171         : "";
 172     $crumbs[] = array('name' => get_string('modulenameplural', $cm->modname),
 173                         'link' => "$CFG->wwwroot/mod/{$cm->modname}/index.php?id=$COURSE->id",
 174                         'type' => 'activity');
 175     $crumbs[] = array('name' => format_string($module->name),
 176                         'link' => "$CFG->wwwroot/mod/{$cm->modname}/view.php?id={$cm->id}",
 177                         'type' => 'title');
 178 } else {
 179     // Print basic page layout.
 180     $strupdatemodule = '';
 181 }
 182 $strmovingquestions = get_string('movingquestions', 'question');
 183 $crumbs[] = array('name' => $strmovingquestions, 'link' => '', 'type' => 'title');
 184
 185 $navigation = build_navigation($crumbs);
 186 print_header_simple($strmovingquestions, '', $navigation, "", "", true, $strupdatemodule);
 187
 188 // print tabs
 189 if ($cm!==null) {
 190     $currenttab = 'edit';
 191     $mode = 'questions';
 192     ${$cm->modname} = $module;
 193     include($CFG->dirroot."/mod/{$cm->modname}/tabs.php");
 194 } else {
 195     $currenttab = 'questions';
 196     include('tabs.php');
 197 }
 198 //parameter for get_string
 199 $questionsstr = new object();
 200 $questionsstr->tocontext = print_context_name($tocat->context);
 201 $questionsstr->fromareaname = $fromareaname;
 202
 203 //comma seperated string "'xx', 'cx', 'sdf' and 'fgdhfg'"
 204 $questionnamestojoin = array();
 205 foreach ($questions as $question){
 206    $questionnamestojoin[] =  $question->name;
 207 }
 208 $tojoincount = count($questionnamestojoin);
 209
 210 if ($tojoincount > 1){
 211     $a = new object();
 212     $a->one = $questionnamestojoin[$tojoincount -2].'"</strong>';
 213     $a->two = '<strong>"'.$questionnamestojoin[$tojoincount -1];
 214     $questionnamestojoin[$tojoincount -2] = get_string('and', '', $a);
 215     unset($questionnamestojoin[$tojoincount -1]);
 216 }
 217 $questionsstr->questions = '<strong>"'.join($questionnamestojoin, '"</strong>, <strong>"').'"</strong>';
 218
 219 if (count($urls)){
 220     $defaults = array();
 221     for ($default_key =0; $default_key < count($urls); $default_key++){
 222         switch ($tocoursefilesid){
 223             case SITEID:
 224                 $defaults['urls'][$default_key] = QUESTION_FILEMOVE;
 225                 break;
 226             default :
 227                 $defaults['urls'][$default_key] = QUESTION_FILECOPY;
 228                 break;
 229
 230         }
 231     }
 232     $contextmoveform->set_data($defaults);
 233
 234     //some parameters for get_string
 235     $questionsstr->urlcount = count($urls);
 236
 237     $questionsstr->toareaname = $toareaname;
 238
 239     print_box(get_string('movingquestionsandfiles', 'question', $questionsstr), 'boxwidthnarrow boxaligncenter generalbox');
 240 } else {
 241     print_box(get_string('movingquestionsnofiles', 'question', $questionsstr), 'boxwidthnarrow boxaligncenter generalbox');
 242 }
 243 $contextmoveform->display();
 244 print_footer($COURSE);
 245 ?>