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