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
  11     $url = new moodle_url('/mod/choice/view.php', array('id'=>$id));
  12     if ($action !== '') {
  13         $url->param('action', $action);
  14     }
  15     $PAGE->set_url($url);
  16
  17     if (! $cm = get_coursemodule_from_id('choice', $id)) {
  18         print_error('invalidcoursemodule');
  19     }
  20
  21     if (! $course = $DB->get_record("course", array("id" => $cm->course))) {
  22         print_error('coursemisconf');
  23     }
  24
  25     require_course_login($course, false, $cm);
  26
  27     if (!$choice = choice_get_choice($cm->instance)) {
  28         print_error('invalidcoursemodule');
  29     }
  30
  31     $strchoice = get_string('modulename', 'choice');
  32     $strchoices = get_string('modulenameplural', 'choice');
  33
  34     $context = context_module::instance($cm->id);
  35
  36     if ($action == 'delchoice' and confirm_sesskey() and is_enrolled($context, NULL, 'mod/choice:choose') and $choice->allowupdate) {
  37         if ($answer = $DB->get_record('choice_answers', array('choiceid' => $choice->id, 'userid' => $USER->id))) {
  38             $DB->delete_records('choice_answers', array('id' => $answer->id));
  39
  40             // Update completion state
  41             $completion = new completion_info($course);
  42             if ($completion->is_enabled($cm) && $choice->completionsubmit) {
  43                 $completion->update_state($cm, COMPLETION_INCOMPLETE);
  44             }
  45         }
  46     }
  47
  48     $PAGE->set_title($choice->name);
  49     $PAGE->set_heading($course->fullname);
  50
  51     // Mark viewed by user (if required)
  52     $completion = new completion_info($course);
  53     $completion->set_module_viewed($cm);
  54
  55 /// Submit any new data if there is any
  56     if (data_submitted() && is_enrolled($context, NULL, 'mod/choice:choose') && confirm_sesskey()) {
  57         $timenow = time();
  58         if (has_capability('mod/choice:deleteresponses', $context)) {
  59             if ($action == 'delete') { //some responses need to be deleted
  60                 choice_delete_responses($attemptids, $choice, $cm, $course); //delete responses.
  61                 redirect("view.php?id=$cm->id");
  62             }
  63         }
  64         $answer = optional_param('answer', '', PARAM_INT);
  65
  66         if (empty($answer)) {
  67             redirect("view.php?id=$cm->id", get_string('mustchooseone', 'choice'));
  68         } else {
  69             choice_user_submit_response($answer, $choice, $USER->id, $course, $cm);
  70         }
  71         echo $OUTPUT->header();
  72         echo $OUTPUT->notification(get_string('choicesaved', 'choice'),'notifysuccess');
  73     } else {
  74         echo $OUTPUT->header();
  75     }
  76
  77
  78 /// Display the choice and possibly results
  79     add_to_log($course->id, "choice", "view", "view.php?id=$cm->id", $choice->id, $cm->id);
  80
  81     /// Check to see if groups are being used in this choice
  82     $groupmode = groups_get_activity_groupmode($cm);
  83
  84     if ($groupmode) {
  85         groups_get_activity_group($cm, true);
  86         groups_print_activity_menu($cm, $CFG->wwwroot . '/mod/choice/view.php?id='.$id);
  87     }
  88     $allresponses = choice_get_response_data($choice, $cm, $groupmode);   // Big function, approx 6 SQL calls per user
  89
  90
  91     if (has_capability('mod/choice:readresponses', $context)) {
  92         choice_show_reportlink($allresponses, $cm);
  93     }
  94
  95     echo '<div class="clearer"></div>';
  96
  97     if ($choice->intro) {
  98         echo $OUTPUT->box(format_module_intro('choice', $choice, $cm->id), 'generalbox', 'intro');
  99     }
 100
 101     $timenow = time();
 102     $current = false;  // Initialise for later
 103     //if user has already made a selection, and they are not allowed to update it or if choice is not open, show their selected answer.
 104     if (isloggedin() && ($current = $DB->get_record('choice_answers', array('choiceid' => $choice->id, 'userid' => $USER->id))) &&
 105         (empty($choice->allowupdate) || ($timenow > $choice->timeclose)) ) {
 106         echo $OUTPUT->box(get_string("yourselection", "choice", userdate($choice->timeopen)).": ".format_string(choice_get_option_text($choice, $current->optionid)), 'generalbox', 'yourselection');
 107     }
 108
 109 /// Print the form
 110     $choiceopen = true;
 111     if ($choice->timeclose !=0) {
 112         if ($choice->timeopen > $timenow ) {
 113             echo $OUTPUT->box(get_string("notopenyet", "choice", userdate($choice->timeopen)), "generalbox notopenyet");
 114             echo $OUTPUT->footer();
 115             exit;
 116         } else if ($timenow > $choice->timeclose) {
 117             echo $OUTPUT->box(get_string("expired", "choice", userdate($choice->timeclose)), "generalbox expired");
 118             $choiceopen = false;
 119         }
 120     }
 121
 122     if ( (!$current or $choice->allowupdate) and $choiceopen and is_enrolled($context, NULL, 'mod/choice:choose')) {
 123     // They haven't made their choice yet or updates allowed and choice is open
 124
 125         $options = choice_prepare_options($choice, $USER, $cm, $allresponses);
 126         $renderer = $PAGE->get_renderer('mod_choice');
 127         echo $renderer->display_options($options, $cm->id, $choice->display);
 128         $choiceformshown = true;
 129     } else {
 130         $choiceformshown = false;
 131     }
 132
 133     if (!$choiceformshown) {
 134         $sitecontext = context_system::instance();
 135
 136         if (isguestuser()) {
 137             // Guest account
 138             echo $OUTPUT->confirm(get_string('noguestchoose', 'choice').'<br /><br />'.get_string('liketologin'),
 139                          get_login_url(), new moodle_url('/course/view.php', array('id'=>$course->id)));
 140         } else if (!is_enrolled($context)) {
 141             // Only people enrolled can make a choice
 142             $SESSION->wantsurl = qualified_me();
 143             $SESSION->enrolcancel = (!empty($_SERVER['HTTP_REFERER'])) ? $_SERVER['HTTP_REFERER'] : '';
 144
 145             $coursecontext = context_course::instance($course->id);
 146             $courseshortname = format_string($course->shortname, true, array('context' => $coursecontext));
 147
 148             echo $OUTPUT->box_start('generalbox', 'notice');
 149             echo '<p align="center">'. get_string('notenrolledchoose', 'choice') .'</p>';
 150             echo $OUTPUT->container_start('continuebutton');
 151             echo $OUTPUT->single_button(new moodle_url('/enrol/index.php?', array('id'=>$course->id)), get_string('enrolme', 'core_enrol', $courseshortname));
 152             echo $OUTPUT->container_end();
 153             echo $OUTPUT->box_end();
 154
 155         }
 156     }
 157
 158     // print the results at the bottom of the screen
 159     if ( $choice->showresults == CHOICE_SHOWRESULTS_ALWAYS or
 160         ($choice->showresults == CHOICE_SHOWRESULTS_AFTER_ANSWER and $current) or
 161         ($choice->showresults == CHOICE_SHOWRESULTS_AFTER_CLOSE and !$choiceopen)) {
 162
 163         if (!empty($choice->showunanswered)) {
 164             $choice->option[0] = get_string('notanswered', 'choice');
 165             $choice->maxanswers[0] = 0;
 166         }
 167         $results = prepare_choice_show_results($choice, $course, $cm, $allresponses);
 168         $renderer = $PAGE->get_renderer('mod_choice');
 169         echo $renderer->display_result($results);
 170
 171     } else if (!$choiceformshown) {
 172         echo $OUTPUT->box(get_string('noresultsviewable', 'choice'));
 173     }
 174
 175     echo $OUTPUT->footer();