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   1  <?php  // $Id$
   2  
   3  require_once($CFG->libdir.'/formslib.php');
   4  
   5  class question_context_move_form extends moodleform {
   6  
   7      function definition() {
   8          global $CFG;
   9          $mform    =& $this->_form;
  10  
  11  //--------------------------------------------------------------------------------
  12          $urls   = $this->_customdata['urls'];
  13          $fromareaname   = $this->_customdata['fromareaname'];
  14          $toareaname   = $this->_customdata['toareaname'];
  15          $fileoptions = array(QUESTION_FILEDONOTHING=>get_string('donothing', 'question'),
  16                        QUESTION_FILECOPY=>get_string('copy', 'question', $fromareaname),
  17                        QUESTION_FILEMOVE=>get_string('move', 'question', $fromareaname),
  18                        QUESTION_FILEMOVELINKSONLY=>get_string('movelinksonly', 'question', $fromareaname));
  19          $brokenfileoptions = array(QUESTION_FILEDONOTHING=>get_string('donothing', 'question'),
  20                    QUESTION_FILEMOVELINKSONLY=>get_string('movelinksonly', 'question', $fromareaname));
  21          $brokenurls   = $this->_customdata['brokenurls'];
  22          if (count($urls)){
  23  
  24              $mform->addElement('header','general', get_string('filestomove', 'question', $toareaname));
  25  
  26              $i = 0;
  27              foreach (array_keys($urls) as $url){
  28                  $iconname = mimeinfo('icon', $url);
  29                  $icontype = mimeinfo('type', $url);
  30                  $img = "<img src=\"$CFG->pixpath/f/$iconname\"  class=\"icon\" alt=\"$icontype\" />";
  31                  if (in_array($url, $brokenurls)){
  32                      $mform->addElement('select', "urls[$i]", $img.$url, $brokenfileoptions);
  33                  } else {
  34                      $mform->addElement('select', "urls[$i]", $img.$url, $fileoptions);
  35                  }
  36                  $i++;
  37              }
  38  
  39          }
  40          if (count($brokenurls)){
  41              $mform->addElement('advcheckbox','ignorebroken', get_string('ignorebroken', 'question'));
  42          }
  43          //--------------------------------------------------------------------------------
  44          $this->add_action_buttons(true, get_string('movecategory', 'question'));
  45  
  46      }
  47  
  48      function validation($data, $files) {
  49          $errors = parent::validation($data, $files);
  50          $tocoursefilesid = $this->_customdata['tocoursefilesid'];
  51          $fromcoursefilesid = $this->_customdata['fromcoursefilesid'];
  52          if (isset($data['urls'])  && (count($data['urls']))){
  53              foreach ($data['urls'] as $key => $urlaction){
  54                  switch ($urlaction){
  55                      case QUESTION_FILEMOVE :
  56                          if (!has_capability('moodle/course:managefiles', get_context_instance(CONTEXT_COURSE, $fromcoursefilesid))){
  57                              $errors["urls[$key]"] = get_string('filecantmovefrom', 'question');
  58                          }
  59                          //no break; COPY check is also applied to MOVE action
  60                      case QUESTION_FILECOPY :
  61                          if (!has_capability('moodle/course:managefiles', get_context_instance(CONTEXT_COURSE, $tocoursefilesid))){
  62                              $errors["urls[$key]"] = get_string('filecantmoveto', 'question');
  63                          }
  64                          break;
  65                      case QUESTION_FILEMOVELINKSONLY :
  66                      case  QUESTION_FILEDONOTHING :
  67                          break;
  68                  }
  69              }
  70          }
  71          //check that there hasn't been any changes in files between time form was displayed
  72          //and now when it has been submitted.
  73          if (isset($data['urls'])  &&
  74              (count($data['urls'])
  75                  != count($this->_customdata['urls']))){
  76              $errors['urls[0]'] = get_string('errorfileschanged', 'question');
  77          }
  78          return $errors;
  79      }
  80      /*
  81       * We want these errors to show up on first loading the form which is not the default for
  82       * validation method which is not run until submission.
  83       */
  84      function definition_after_data(){
  85          $mform = $this->_form;
  86          $brokenurls   = $this->_customdata['brokenurls'];
  87          if (count($brokenurls)){
  88              $ignoreval = $mform->getElementValue('ignorebroken');
  89              if (!$ignoreval){
  90                  $urls   = $this->_customdata['urls'];
  91                  $i = 0;
  92                  foreach (array_keys($urls) as $url){
  93                      if (in_array($url, $brokenurls)){
  94                          $mform->setElementError("urls[$i]", get_string('broken', 'question'));
  95                      } else {
  96                          $mform->setElementError("urls[$i]", '');
  97                      }
  98                      $i++;
  99                  }
 100              }
 101          }
 102      }
 103  }
 104  ?>