mod/choice/view.php

   1 <?php
   2
   3 require_once("../../config.php");
   4 require_once("lib.php");
   5 require_once($CFG->libdir . '/completionlib.php');
   6
   7 $id         = required_param('id', PARAM_INT);                 // Course Module ID
   8 $action     = optional_param('action', '', PARAM_ALPHA);
   9 $attemptids = optional_param_array('attemptid', array(), PARAM_INT); // array of attempt ids for delete action
  10 $notify     = optional_param('notify', '', PARAM_ALPHA);
  11
  12 $url = new moodle_url('/mod/choice/view.php', array('id'=>$id));
  13 if ($action !== '') {
  14     $url->param('action', $action);
  15 }
  16 $PAGE->set_url($url);
  17
  18 if (! $cm = get_coursemodule_from_id('choice', $id)) {
  19     print_error('invalidcoursemodule');
  20 }
  21
  22 if (! $course = $DB->get_record("course", array("id" => $cm->course))) {
  23     print_error('coursemisconf');
  24 }
  25
  26 require_course_login($course, false, $cm);
  27
  28 if (!$choice = choice_get_choice($cm->instance)) {
  29     print_error('invalidcoursemodule');
  30 }
  31
  32 $strchoice = get_string('modulename', 'choice');
  33 $strchoices = get_string('modulenameplural', 'choice');
  34
  35 $context = context_module::instance($cm->id);
  36
  37 list($choiceavailable, $warnings) = choice_get_availability_status($choice);
  38
  39 if ($action == 'delchoice' and confirm_sesskey() and is_enrolled($context, NULL, 'mod/choice:choose') and $choice->allowupdate
  40         and $choiceavailable) {
  41     $answercount = $DB->count_records('choice_answers', array('choiceid' => $choice->id, 'userid' => $USER->id));
  42     if ($answercount > 0) {
  43         $DB->delete_records('choice_answers', array('choiceid' => $choice->id, 'userid' => $USER->id));
  44
  45         // Update completion state
  46         $completion = new completion_info($course);
  47         if ($completion->is_enabled($cm) && $choice->completionsubmit) {
  48             $completion->update_state($cm, COMPLETION_INCOMPLETE);
  49         }
  50         redirect("view.php?id=$cm->id");
  51     }
  52 }
  53
  54 $PAGE->set_title($choice->name);
  55 $PAGE->set_heading($course->fullname);
  56
  57 // Mark viewed by user (if required)
  58 $completion = new completion_info($course);
  59 $completion->set_module_viewed($cm);
  60
  61 /// Submit any new data if there is any
  62 if (data_submitted() && is_enrolled($context, NULL, 'mod/choice:choose') && confirm_sesskey()) {
  63     $timenow = time();
  64     if (has_capability('mod/choice:deleteresponses', $context) && $action == 'delete') {
  65         //some responses need to be deleted
  66         choice_delete_responses($attemptids, $choice, $cm, $course); //delete responses.
  67         redirect("view.php?id=$cm->id");
  68     }
  69
  70     // Redirection after all POSTs breaks block editing, we need to be more specific!
  71     if ($choice->allowmultiple) {
  72         $answer = optional_param_array('answer', array(), PARAM_INT);
  73     } else {
  74         $answer = optional_param('answer', '', PARAM_INT);
  75     }
  76
  77     if (!$choiceavailable) {
  78         $reason = current(array_keys($warnings));
  79         throw new moodle_exception($reason, 'choice', '', $warnings[$reason]);
  80     }
  81
  82     if ($answer) {
  83         choice_user_submit_response($answer, $choice, $USER->id, $course, $cm);
  84         redirect(new moodle_url('/mod/choice/view.php',
  85             array('id' => $cm->id, 'notify' => 'choicesaved', 'sesskey' => sesskey())));
  86     } else if (empty($answer) and $action === 'makechoice') {
  87         // We cannot use the 'makechoice' alone because there might be some legacy renderers without it,
  88         // outdated renderers will not get the 'mustchoose' message - bad luck.
  89         redirect(new moodle_url('/mod/choice/view.php',
  90             array('id' => $cm->id, 'notify' => 'mustchooseone', 'sesskey' => sesskey())));
  91     }
  92 }
  93
  94 echo $OUTPUT->header();
  95 echo $OUTPUT->heading(format_string($choice->name), 2, null);
  96
  97 if ($notify and confirm_sesskey()) {
  98     if ($notify === 'choicesaved') {
  99         echo $OUTPUT->notification(get_string('choicesaved', 'choice'), 'notifysuccess');
 100     } else if ($notify === 'mustchooseone') {
 101         echo $OUTPUT->notification(get_string('mustchooseone', 'choice'), 'notifyproblem');
 102     }
 103 }
 104
 105 /// Display the choice and possibly results
 106 $eventdata = array();
 107 $eventdata['objectid'] = $choice->id;
 108 $eventdata['context'] = $context;
 109
 110 $event = \mod_choice\event\course_module_viewed::create($eventdata);
 111 $event->add_record_snapshot('course_modules', $cm);
 112 $event->add_record_snapshot('course', $course);
 113 $event->trigger();
 114
 115 /// Check to see if groups are being used in this choice
 116 $groupmode = groups_get_activity_groupmode($cm);
 117
 118 if ($groupmode) {
 119     groups_get_activity_group($cm, true);
 120     groups_print_activity_menu($cm, $CFG->wwwroot . '/mod/choice/view.php?id='.$id);
 121 }
 122
 123 // Check if we want to include responses from inactive users.
 124 $onlyactive = $choice->includeinactive ? false : true;
 125
 126 $allresponses = choice_get_response_data($choice, $cm, $groupmode, $onlyactive);   // Big function, approx 6 SQL calls per user.
 127
 128
 129 if (has_capability('mod/choice:readresponses', $context)) {
 130     choice_show_reportlink($allresponses, $cm);
 131 }
 132
 133 echo '<div class="clearer"></div>';
 134
 135 if ($choice->intro) {
 136     echo $OUTPUT->box(format_module_intro('choice', $choice, $cm->id), 'generalbox', 'intro');
 137 }
 138
 139 $timenow = time();
 140 $current = $DB->get_records('choice_answers', array('choiceid' => $choice->id, 'userid' => $USER->id));
 141 //if user has already made a selection, and they are not allowed to update it or if choice is not open, show their selected answer.
 142 if (isloggedin() && (!empty($current)) &&
 143     (empty($choice->allowupdate) || ($timenow > $choice->timeclose)) ) {
 144     $choicetexts = array();
 145     foreach ($current as $c) {
 146         $choicetexts[] = format_string(choice_get_option_text($choice, $c->optionid));
 147     }
 148     echo $OUTPUT->box(get_string("yourselection", "choice", userdate($choice->timeopen)).": ".implode('; ', $choicetexts), 'generalbox', 'yourselection');
 149 }
 150
 151 /// Print the form
 152 $choiceopen = true;
 153 if ($choice->timeclose !=0) {
 154     if ($choice->timeopen > $timenow ) {
 155         if ($choice->showpreview) {
 156             echo $OUTPUT->box(get_string('previewonly', 'choice', userdate($choice->timeopen)), 'generalbox alert');
 157         } else {
 158             echo $OUTPUT->box(get_string("notopenyet", "choice", userdate($choice->timeopen)), "generalbox notopenyet");
 159             echo $OUTPUT->footer();
 160             exit;
 161         }
 162     } else if ($timenow > $choice->timeclose) {
 163         echo $OUTPUT->box(get_string("expired", "choice", userdate($choice->timeclose)), "generalbox expired");
 164         $choiceopen = false;
 165     }
 166 }
 167
 168 if ( (!$current or $choice->allowupdate) and $choiceopen and is_enrolled($context, NULL, 'mod/choice:choose')) {
 169 // They haven't made their choice yet or updates allowed and choice is open
 170
 171     $options = choice_prepare_options($choice, $USER, $cm, $allresponses);
 172     $renderer = $PAGE->get_renderer('mod_choice');
 173     echo $renderer->display_options($options, $cm->id, $choice->display, $choice->allowmultiple);
 174     $choiceformshown = true;
 175 } else {
 176     $choiceformshown = false;
 177 }
 178
 179 if (!$choiceformshown) {
 180     $sitecontext = context_system::instance();
 181
 182     if (isguestuser()) {
 183         // Guest account
 184         echo $OUTPUT->confirm(get_string('noguestchoose', 'choice').'<br /><br />'.get_string('liketologin'),
 185                      get_login_url(), new moodle_url('/course/view.php', array('id'=>$course->id)));
 186     } else if (!is_enrolled($context)) {
 187         // Only people enrolled can make a choice
 188         $SESSION->wantsurl = qualified_me();
 189         $SESSION->enrolcancel = get_local_referer(false);
 190
 191         $coursecontext = context_course::instance($course->id);
 192         $courseshortname = format_string($course->shortname, true, array('context' => $coursecontext));
 193
 194         echo $OUTPUT->box_start('generalbox', 'notice');
 195         echo '<p align="center">'. get_string('notenrolledchoose', 'choice') .'</p>';
 196         echo $OUTPUT->container_start('continuebutton');
 197         echo $OUTPUT->single_button(new moodle_url('/enrol/index.php?', array('id'=>$course->id)), get_string('enrolme', 'core_enrol', $courseshortname));
 198         echo $OUTPUT->container_end();
 199         echo $OUTPUT->box_end();
 200
 201     }
 202 }
 203
 204 // print the results at the bottom of the screen
 205 if ( $choice->showresults == CHOICE_SHOWRESULTS_ALWAYS or
 206     ($choice->showresults == CHOICE_SHOWRESULTS_AFTER_ANSWER and $current) or
 207     ($choice->showresults == CHOICE_SHOWRESULTS_AFTER_CLOSE and !$choiceopen)) {
 208
 209     if (!empty($choice->showunanswered)) {
 210         $choice->option[0] = get_string('notanswered', 'choice');
 211         $choice->maxanswers[0] = 0;
 212     }
 213     $results = prepare_choice_show_results($choice, $course, $cm, $allresponses);
 214     $renderer = $PAGE->get_renderer('mod_choice');
 215     echo $renderer->display_result($results);
 216
 217 } else if (!$choiceformshown) {
 218     echo $OUTPUT->box(get_string('noresultsviewable', 'choice'));
 219 }
 220
 221 echo $OUTPUT->footer();