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   1  <?php
   2  if (!defined('MOODLE_INTERNAL')) {
   3      die('Direct access to this script is forbidden.');    ///  It must be included from a Moodle page
   4  }
   5  
   6  require_once ($CFG->dirroot.'/course/moodleform_mod.php');
   7  
   8  class mod_choice_mod_form extends moodleform_mod {
   9  
  10      function definition() {
  11          global $CFG, $CHOICE_SHOWRESULTS, $CHOICE_PUBLISH, $CHOICE_DISPLAY, $DB;
  12  
  13          $mform    =& $this->_form;
  14  
  15  //-------------------------------------------------------------------------------
  16          $mform->addElement('header', 'general', get_string('general', 'form'));
  17  
  18          $mform->addElement('text', 'name', get_string('choicename', 'choice'), array('size'=>'64'));
  19          if (!empty($CFG->formatstringstriptags)) {
  20              $mform->setType('name', PARAM_TEXT);
  21          } else {
  22              $mform->setType('name', PARAM_CLEANHTML);
  23          }
  24          $mform->addRule('name', null, 'required', null, 'client');
  25          $mform->addRule('name', get_string('maximumchars', '', 255), 'maxlength', 255, 'client');
  26  
  27          $this->standard_intro_elements(get_string('description', 'choice'));
  28  
  29          $mform->addElement('select', 'display', get_string("displaymode","choice"), $CHOICE_DISPLAY);
  30  
  31          //-------------------------------------------------------------------------------
  32          $mform->addElement('header', 'optionhdr', get_string('options', 'choice'));
  33  
  34          $mform->addElement('selectyesno', 'allowupdate', get_string("allowupdate", "choice"));
  35  
  36          $mform->addElement('selectyesno', 'allowmultiple', get_string('allowmultiple', 'choice'));
  37  
  38          $mform->addElement('selectyesno', 'limitanswers', get_string('limitanswers', 'choice'));
  39          $mform->addHelpButton('limitanswers', 'limitanswers', 'choice');
  40  
  41          $repeatarray = array();
  42          $repeatarray[] = $mform->createElement('text', 'option', get_string('optionno', 'choice'));
  43          $repeatarray[] = $mform->createElement('text', 'limit', get_string('limitno', 'choice'));
  44          $repeatarray[] = $mform->createElement('hidden', 'optionid', 0);
  45  
  46          if ($this->_instance){
  47              $repeatno = $DB->count_records('choice_options', array('choiceid'=>$this->_instance));
  48              $repeatno += 2;
  49          } else {
  50              $repeatno = 5;
  51          }
  52  
  53          $repeateloptions = array();
  54          $repeateloptions['limit']['default'] = 0;
  55          $repeateloptions['limit']['disabledif'] = array('limitanswers', 'eq', 0);
  56          $repeateloptions['limit']['rule'] = 'numeric';
  57          $repeateloptions['limit']['type'] = PARAM_INT;
  58  
  59          $repeateloptions['option']['helpbutton'] = array('choiceoptions', 'choice');
  60          $mform->setType('option', PARAM_CLEANHTML);
  61  
  62          $mform->setType('optionid', PARAM_INT);
  63  
  64          $this->repeat_elements($repeatarray, $repeatno,
  65                      $repeateloptions, 'option_repeats', 'option_add_fields', 3, null, true);
  66  
  67          // Make the first option required
  68          if ($mform->elementExists('option[0]')) {
  69              $mform->addRule('option[0]', get_string('atleastoneoption', 'choice'), 'required', null, 'client');
  70          }
  71  
  72  //-------------------------------------------------------------------------------
  73          $mform->addElement('header', 'availabilityhdr', get_string('availability'));
  74          $mform->addElement('date_time_selector', 'timeopen', get_string("choiceopen", "choice"),
  75              array('optional' => true));
  76  
  77          $mform->addElement('date_time_selector', 'timeclose', get_string("choiceclose", "choice"),
  78              array('optional' => true));
  79  
  80          $mform->addElement('advcheckbox', 'showpreview', get_string('showpreview', 'choice'));
  81          $mform->addHelpButton('showpreview', 'showpreview', 'choice');
  82          $mform->disabledIf('showpreview', 'timeopen[enabled]');
  83  
  84  //-------------------------------------------------------------------------------
  85          $mform->addElement('header', 'resultshdr', get_string('results', 'choice'));
  86  
  87          $mform->addElement('select', 'showresults', get_string("publish", "choice"), $CHOICE_SHOWRESULTS);
  88  
  89          $mform->addElement('select', 'publish', get_string("privacy", "choice"), $CHOICE_PUBLISH);
  90          $mform->disabledIf('publish', 'showresults', 'eq', 0);
  91  
  92          $mform->addElement('selectyesno', 'showunanswered', get_string("showunanswered", "choice"));
  93  
  94          $mform->addElement('selectyesno', 'includeinactive', get_string('includeinactive', 'choice'));
  95          $mform->setDefault('includeinactive', 0);
  96  
  97  //-------------------------------------------------------------------------------
  98          $this->standard_coursemodule_elements();
  99  //-------------------------------------------------------------------------------
 100          $this->add_action_buttons();
 101      }
 102  
 103      function data_preprocessing(&$default_values){
 104          global $DB;
 105          if (!empty($this->_instance) && ($options = $DB->get_records_menu('choice_options',array('choiceid'=>$this->_instance), 'id', 'id,text'))
 106                 && ($options2 = $DB->get_records_menu('choice_options', array('choiceid'=>$this->_instance), 'id', 'id,maxanswers')) ) {
 107              $choiceids=array_keys($options);
 108              $options=array_values($options);
 109              $options2=array_values($options2);
 110  
 111              foreach (array_keys($options) as $key){
 112                  $default_values['option['.$key.']'] = $options[$key];
 113                  $default_values['limit['.$key.']'] = $options2[$key];
 114                  $default_values['optionid['.$key.']'] = $choiceids[$key];
 115              }
 116  
 117          }
 118  
 119      }
 120  
 121      function get_data() {
 122          $data = parent::get_data();
 123          if (!$data) {
 124              return false;
 125          }
 126          // Set up completion section even if checkbox is not ticked
 127          if (!empty($data->completionunlocked)) {
 128              if (empty($data->completionsubmit)) {
 129                  $data->completionsubmit = 0;
 130              }
 131          }
 132          return $data;
 133      }
 134  
 135      /**
 136       * Enforce validation rules here
 137       *
 138       * @param array $data array of ("fieldname"=>value) of submitted data
 139       * @param array $files array of uploaded files "element_name"=>tmp_file_path
 140       * @return array
 141       **/
 142      public function validation($data, $files) {
 143          $errors = parent::validation($data, $files);
 144  
 145          // Check open and close times are consistent.
 146          if ($data['timeopen'] && $data['timeclose'] &&
 147                  $data['timeclose'] < $data['timeopen']) {
 148              $errors['timeclose'] = get_string('closebeforeopen', 'choice');
 149          }
 150  
 151          return $errors;
 152      }
 153  
 154      function add_completion_rules() {
 155          $mform =& $this->_form;
 156  
 157          $mform->addElement('checkbox', 'completionsubmit', '', get_string('completionsubmit', 'choice'));
 158          return array('completionsubmit');
 159      }
 160  
 161      function completion_rule_enabled($data) {
 162          return !empty($data['completionsubmit']);
 163      }
 164  }
 165