blocks/section_links/block_section_links.php

   1 <?PHP //$Id$
   2
   3 class block_section_links extends block_base {
   4
   5     function init() {
   6         $this->title = get_string('blockname', 'block_section_links');
   7         $this->version = 2004052800;
   8     }
   9
  10     function instance_config($instance) {
  11         parent::instance_config($instance);
  12         $course = get_record('course', 'id', $this->instance->pageid);
  13         if (isset($course->format)) {
  14             if ($course->format == 'topics') {
  15                 $this->title = get_string('topics', 'block_section_links');
  16             } else if ($course->format == 'weeks') {
  17                 $this->title = get_string('weeks', 'block_section_links');
  18             } else {
  19                 $this->title = get_string('blockname', 'block_section_links');
  20             }
  21         }
  22     }
  23
  24     function applicable_formats() {
  25         return (array('course-view-weeks' => true, 'course-view-topics' => true, 'course-edit-weeks' => true, 'course-edit-topics' => true));
  26     }
  27
  28     function get_content() {
  29         global $CFG, $USER, $COURSE;
  30
  31         $highlight = 0;
  32
  33         if ($this->content !== NULL) {
  34             return $this->content;
  35         }
  36
  37         $this->content = new stdClass;
  38         $this->content->footer = '';
  39         $this->content->text   = '';
  40
  41         if (empty($this->instance)) {
  42             return $this->content;
  43         }
  44
  45         if ($this->instance->pageid == $COURSE->id) {
  46             $course = $COURSE;
  47         } else {
  48             $course = get_record('course', 'id', $this->instance->pageid);
  49         }
  50         $context = get_context_instance(CONTEXT_COURSE, $course->id);
  51
  52         if ($course->format == 'weeks' or $course->format == 'weekscss') {
  53             $highlight = ceil((time()-$course->startdate)/604800);
  54             $linktext = get_string('jumptocurrentweek', 'block_section_links');
  55             $sectionname = 'week';
  56         }
  57         else if ($course->format == 'topics') {
  58             $highlight = $course->marker;
  59             $linktext = get_string('jumptocurrenttopic', 'block_section_links');
  60             $sectionname = 'topic';
  61         }
  62         $inc = 1;
  63         if ($course->numsections > 22) {
  64             $inc = 2;
  65         }
  66         if ($course->numsections > 40) {
  67             $inc = 5;
  68         }
  69
  70         if (!empty($USER->id)) {
  71             $display = get_field('course_display', 'display', 'course', $this->instance->pageid, 'userid', $USER->id);
  72         }
  73         if (!empty($display)) {
  74             $link = $CFG->wwwroot.'/course/view.php?id='.$this->instance->pageid.'&amp;'.$sectionname.'=';
  75         } else {
  76             $link = '#section-';
  77         }
  78         $text = '<ol class="inline-list">';
  79         for ($i = $inc; $i <= $course->numsections; $i += $inc) {
  80             $isvisible = get_field('course_sections', 'visible', 'course', $this->instance->pageid, 'section', $i);
  81             if (!$isvisible and !has_capability('moodle/course:update', $context)) {
  82                 continue;
  83             }
  84             $style = ($isvisible) ? '' : ' class="dimmed"';
  85             if ($i == $highlight) {
  86                 $text .= "<li><a href=\"$link$i\"$style><strong>$i</strong></a></li>\n";
  87             } else {
  88                 $text .= "<li><a href=\"$link$i\"$style>$i</a></li>\n";
  89             }
  90         }
  91         $text .= '</ol>';
  92         if ($highlight) {
  93             $isvisible = get_field('course_sections', 'visible', 'course', $this->instance->pageid, 'section', $highlight);
  94             if ($isvisible or has_capability('moodle/course:update', $context)) {
  95                 $style = ($isvisible) ? '' : ' class="dimmed"';
  96                 $text .= "\n<a href=\"$link$highlight\"$style>$linktext</a>";
  97             }
  98         }
  99
 100         $this->content->text = $text;
 101         return $this->content;
 102     }
 103 }
 104
 105 ?>