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 $contexts = new question_edit_contexts($thiscontext);
  48
  49
  50 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")) {
  51     print_error('questiondoesnotexist', 'question', $returnurl);
  52 }
  53 if (!$tocat = get_record('question_categories', 'id', $tocatid)){
  54     print_error('categorydoesnotexist', 'question', $returnurl);
  55 }
  56 $tocat->context = get_context_instance_by_id($tocat->contextid);
  57 require_capability('moodle/question:add', $tocat->context);
  58 $tocoursefilesid =  get_filesdir_from_context($tocat->context);
  59 $urls = array();
  60
  61 if ($tocoursefilesid == SITEID){
  62     $toareaname = get_string('filesareasite', 'question');
  63 } else {
  64     $toareaname = get_string('filesareacourse', 'question');
  65 }
  66 $fromcoursefilesid = 0;
  67 foreach (array_keys($questions) as $id){
  68     question_require_capability_on($questions[$id], 'move');
  69     get_question_options($questions[$id]);
  70     $questions[$id]->context = get_context_instance_by_id($questions[$id]->contextid);
  71     $thisfilesid =  get_filesdir_from_context($questions[$id]->context);
  72     if ($fromcoursefilesid && $thisfilesid != $fromcoursefilesid){
  73        error('You can\'t use this script to move questions that have files associated with them from different areas.');
  74     } else {
  75        $fromcoursefilesid =  $thisfilesid;
  76     }
  77     if ($tocoursefilesid != $fromcoursefilesid){
  78         $urls = array_merge_recursive($urls, $QTYPES[$questions[$id]->qtype]->find_file_links($questions[$id], $fromcoursefilesid));
  79     }
  80 }
  81
  82 $brokenurls = array();
  83 foreach (array_keys($urls) as $url){
  84     if (!file_exists($CFG->dataroot."/$fromcoursefilesid/".$url)){
  85         $brokenurls[] = $url;
  86     }
  87 }
  88 if ($fromcoursefilesid == SITEID){
  89     $fromareaname = get_string('filesareasite', 'question');
  90 } else {
  91     $fromareaname = get_string('filesareacourse', 'question');
  92 }
  93
  94 $contextmoveform = new question_context_move_question_form($thispageurl,
  95         compact('urls', 'fromareaname', 'toareaname', 'brokenurls',
  96                     'fromcoursefilesid', 'tocoursefilesid'));
  97 if ($contextmoveform->is_cancelled()){
  98     redirect($returnurl);
  99 }elseif ($moveformdata = $contextmoveform->get_data()) {
 100     if (isset($moveformdata->urls) && is_array($moveformdata->urls)){
 101         check_dir_exists($CFG->dataroot."/$tocoursefilesid/", true);
 102         $flipurls = array_keys($urls);
 103         //actions on files
 104         foreach ($moveformdata->urls as $key => $urlaction){
 105             $source = $CFG->dataroot."/$fromcoursefilesid/".$flipurls[$key];
 106             $destination = $flipurls[$key];
 107             if (($urlaction != QUESTION_FILEDONOTHING) && ($urlaction != QUESTION_FILEMOVELINKSONLY)){
 108                 while (file_exists($CFG->dataroot."/$tocoursefilesid/".$destination)){
 109                     $matches = array();
 110                     //check for '_'. copyno after filename, before extension.
 111                     if (preg_match('!\_([0-9]+)(\.[^\.\\/]+)?$!', $destination, $matches)){
 112                         $copyno = $matches[1]+1;
 113                     } else {
 114                         $copyno = 1;
 115                     }
 116                     //replace old copy no with incremented one.
 117                     $destination = preg_replace('!(\_[0-9]+)?(\.[^\.\\/]+)?$!', '_'.$copyno.'\\2', $destination, 1);
 118                 }
 119             }
 120             switch ($urlaction){
 121                 case QUESTION_FILECOPY :
 122                     if (!copy($source, $CFG->dataroot."/$tocoursefilesid/".$destination)){
 123                         print_error('errorfilecannotbecopied', 'question', $onerrorurl, $source);
 124                     }
 125                     break;
 126                 case QUESTION_FILEMOVE :
 127                     if (!rename($source, $CFG->dataroot."/$tocoursefilesid/".$destination)){
 128                         print_error('errorfilecannotbemoved', 'question', $onerrorurl, $source);
 129                     }
 130                     break;
 131                 case QUESTION_FILEMOVELINKSONLY :
 132                 case QUESTION_FILEDONOTHING :
 133                     break;
 134                 default :
 135                     error('Invalid action selected!', $onerrorurl);
 136             }
 137             //now search and replace urls in questions.
 138             switch ($urlaction){
 139                 case QUESTION_FILECOPY :
 140                 case QUESTION_FILEMOVE :
 141                 case QUESTION_FILEMOVELINKSONLY :
 142                     $url = $flipurls[$key];
 143                     $questionswithlinks = array_unique($urls[$url]);
 144                     foreach ($questionswithlinks as $questionid){
 145                         $QTYPES[$questions[$questionid]->qtype]->replace_file_links($questions[$questionid], $fromcoursefilesid, $tocoursefilesid, $url, $destination);
 146                     }
 147                     break;
 148                 case  QUESTION_FILEDONOTHING :
 149                     break;
 150                 default :
 151                     error('Invalid action selected!', $onerrorurl);
 152                     break;
 153             }
 154
 155
 156         }
 157     }
 158     //now move questions
 159     if (!execute_sql("UPDATE {$CFG->prefix}question SET category = {$tocat->id} WHERE id IN ({$ids})", false)){
 160         error("Could not move the questions {$ids} to category ".$tocat->name, $onerrorurl);
 161     }
 162     redirect($returnurl);
 163 }
 164
 165 $streditingcategories = get_string('editcategories', 'quiz');
 166 $crumbs = array();
 167 if ($cmid) {
 168     // Page header
 169     $context = get_context_instance(CONTEXT_MODULE, $cm->id);
 170     $strupdatemodule = has_capability('moodle/course:manageactivities', $context)
 171         ? update_module_button($cm->id, $COURSE->id, get_string('modulename', $cm->modname))
 172         : "";
 173     $crumbs[] = array('name' => get_string('modulenameplural', $cm->modname),
 174                         'link' => "$CFG->wwwroot/mod/{$cm->modname}/index.php?id=$COURSE->id",
 175                         'type' => 'activity');
 176     $crumbs[] = array('name' => format_string($module->name),
 177                         'link' => "$CFG->wwwroot/mod/{$cm->modname}/view.php?id={$cm->id}",
 178                         'type' => 'title');
 179 } else {
 180     // Print basic page layout.
 181     $strupdatemodule = '';
 182 }
 183 $strmovingquestions = get_string('movingquestions', 'question');
 184 $crumbs[] = array('name' => $strmovingquestions, 'link' => '', 'type' => 'title');
 185
 186 $navigation = build_navigation($crumbs);
 187 print_header_simple($strmovingquestions, '', $navigation, "", "", true, $strupdatemodule);
 188
 189 // print tabs
 190 if ($cm!==null) {
 191     $currenttab = 'edit';
 192     $mode = 'questions';
 193     ${$cm->modname} = $module;
 194     include($CFG->dirroot."/mod/{$cm->modname}/tabs.php");
 195 } else {
 196     $currenttab = 'questions';
 197     include('tabs.php');
 198 }
 199 //parameter for get_string
 200 $questionsstr = new object();
 201 $questionsstr->tocontext = print_context_name($tocat->context);
 202 $questionsstr->fromareaname = $fromareaname;
 203
 204 //comma seperated string "'xx', 'cx', 'sdf' and 'fgdhfg'"
 205 $questionnamestojoin = array();
 206 foreach ($questions as $question){
 207    $questionnamestojoin[] =  $question->name;
 208 }
 209 $tojoincount = count($questionnamestojoin);
 210
 211 if ($tojoincount > 1){
 212     $a = new object();
 213     $a->one = $questionnamestojoin[$tojoincount -2].'"</strong>';
 214     $a->two = '<strong>"'.$questionnamestojoin[$tojoincount -1];
 215     $questionnamestojoin[$tojoincount -2] = get_string('and', '', $a);
 216     unset($questionnamestojoin[$tojoincount -1]);
 217 }
 218 $questionsstr->questions = '<strong>"'.join($questionnamestojoin, '"</strong>, <strong>"').'"</strong>';
 219
 220 if (count($urls)){
 221     $defaults = array();
 222     for ($default_key =0; $default_key < count($urls); $default_key++){
 223         switch ($tocoursefilesid){
 224             case SITEID:
 225                 $defaults['urls'][$default_key] = QUESTION_FILEMOVE;
 226                 break;
 227             default :
 228                 $defaults['urls'][$default_key] = QUESTION_FILECOPY;
 229                 break;
 230
 231         }
 232     }
 233     $contextmoveform->set_data($defaults);
 234
 235     //some parameters for get_string
 236     $questionsstr->urlcount = count($urls);
 237
 238     $questionsstr->toareaname = $toareaname;
 239
 240     print_box(get_string('movingquestionsandfiles', 'question', $questionsstr), 'boxwidthnarrow boxaligncenter generalbox');
 241 } else {
 242     print_box(get_string('movingquestionsnofiles', 'question', $questionsstr), 'boxwidthnarrow boxaligncenter generalbox');
 243 }
 244 $contextmoveform->display();
 245 print_footer($COURSE);
 246 ?>