tag/coursetags_more.php

   1 <?php
   2 /**
   3  * coursetags_more.php
   4  * a full display of tags allowing some filtering and reordering
   5  * @author j.beedell@open.ac.uk June07
   6  */
   7
   8 require_once('../config.php');
   9 require_once($CFG->dirroot.'/tag/coursetagslib.php');
  10 require_once($CFG->dirroot.'/tag/lib.php');
  11
  12 $sort = optional_param('sort', 'alpha', PARAM_ALPHA); //alpha, date or popularity
  13 $show = optional_param('show', 'all', PARAM_ALPHA); //all, my, official, community or course
  14 $courseid = optional_param('courseid', 0, PARAM_INT);
  15
  16 $url = new moodle_url('/tag/coursetags_more.php');
  17 if ($sort !== 'alpha') {
  18     $url->param('sort', $sort);
  19 }
  20 if ($show !== 'all') {
  21     $url->param('show', $show);
  22 }
  23 if ($courseid !== 0) {
  24     $url->param('courseid', $courseid);
  25 }
  26 $PAGE->set_url($url);
  27
  28 if (empty($CFG->usetags)) {
  29     print_error('tagsaredisabled', 'tag');
  30 }
  31
  32 // Some things require logging in
  33 if ($CFG->forcelogin or $show == 'my') {
  34     require_login();
  35 }
  36
  37 // Permissions
  38 $loggedin = isloggedin() && !isguestuser();
  39
  40 // Course check
  41 if ($courseid) {
  42     if (!($course = $DB->get_record('course', array('id'=>$courseid)))) {
  43         $courseid = 0;
  44     }
  45     if ($courseid == SITEID) $courseid = 0;
  46 }
  47
  48 if ($courseid) {
  49     $PAGE->set_context(get_context_instance(CONTEXT_COURSE, $courseid));
  50 } else {
  51     $PAGE->set_context(get_system_context());
  52 }
  53
  54 // Language strings
  55 $tagslang = 'block_tags';
  56 $title = get_string('moretitle', $tagslang);
  57 $link1 = get_string('moreshow', $tagslang);
  58 $link2 = get_string('moreorder', $tagslang);
  59 $showalltags = get_string('moreshowalltags', $tagslang);
  60 $showofficialtags = get_string('moreshowofficialtags', $tagslang);
  61 $showmytags = get_string('moreshowmytags', $tagslang);
  62 $showcommtags = get_string('moreshowcommtags', $tagslang);
  63 $orderalpha = get_string('moreorderalpha', $tagslang);
  64 $orderdate = get_string('moreorderdate', $tagslang);
  65 $orderpop = get_string('moreorderpop', $tagslang);
  66 $welcome = get_string('morewelcome', $tagslang);
  67
  68 // The title and breadcrumb
  69 if ($courseid) {
  70     $PAGE->navbar->add(format_string($course->shortname), new moodle_url('/course/view.php', array('id'=>$courseid)));
  71 }
  72 $PAGE->navbar->add($title);
  73 $PAGE->set_title($title);
  74 $PAGE->set_heading($COURSE->fullname);
  75 echo $OUTPUT->header();
  76 echo $OUTPUT->heading($title, 2, 'centre');
  77
  78 // Prepare data for tags
  79 $courselink = '';
  80 if ($courseid) { $courselink = '&amp;courseid='.$courseid; }
  81 $myurl = $CFG->wwwroot.'/tag/coursetags_more.php';
  82 $myurl2 = $CFG->wwwroot.'/tag/coursetags_more.php?show='.$show;
  83
  84 // Course tags
  85 if ($show == 'course' and $courseid) {
  86
  87     if ($sort == 'popularity') {
  88         $tags = coursetag_print_cloud(coursetag_get_tags($courseid, 0, '', 0, 'popularity'), true, 200, 90);
  89     } else if ($sort == 'date') {
  90         $tags = coursetag_print_cloud(coursetag_get_tags($courseid, 0, '', 0, 'timemodified'), true, 200, 90);
  91     } else {
  92         $tags = coursetag_print_cloud(coursetag_get_tags($courseid, 0, '', 0, 'name'), true, 200, 90);
  93     }
  94
  95 // My tags
  96 } else if ($show == 'my' and $loggedin) {
  97
  98     if ($sort == 'popularity') {
  99         $tags = coursetag_print_cloud(coursetag_get_tags(0, $USER->id, 'default', 0, 'popularity'), true, 200, 90);
 100     } else if ($sort == 'date') {
 101         $tags = coursetag_print_cloud(coursetag_get_tags(0, $USER->id, 'default', 0, 'timemodified'), true, 200, 90);
 102     } else {
 103         $tags = coursetag_print_cloud(coursetag_get_tags(0, $USER->id, 'default', 0, 'name'), true, 200, 90);
 104     }
 105
 106 // Official course tags
 107 } else if ($show == 'official') {
 108
 109     if ($sort == 'popularity') {
 110         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'official', 0, 'popularity'), true, 200, 90);
 111     } else if ($sort == 'date') {
 112         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'official', 0, 'timemodified'), true, 200, 90);
 113     } else {
 114         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'official', 0, 'name'), true, 200, 90);
 115     }
 116
 117 // Community (official and personal together) also called user tags
 118 } else if ($show == 'community') {
 119
 120     if ($sort == 'popularity') {
 121         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'default', 0, 'popularity'), true, 200, 90);
 122     } else if ($sort == 'date') {
 123         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'default', 0, 'timemodified'), true, 200, 90);
 124     } else {
 125         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'default', 0, 'name'), true, 200, 90);
 126     }
 127
 128 // All tags for courses and blogs and any thing else tagged - the fallback default ($show == all)
 129 } else {
 130
 131     $subtitle = $showalltags;
 132     if ($sort == 'popularity') {
 133         $tags = coursetag_print_cloud(coursetag_get_all_tags('popularity'), true, 200, 90);
 134     } else if ($sort == 'date') {
 135         $tags = coursetag_print_cloud(coursetag_get_all_tags('timemodified'), true, 200, 90);
 136     } else {
 137         $tags = coursetag_print_cloud(coursetag_get_all_tags('name'), true, 200, 90);
 138     }
 139
 140 }
 141
 142 // Prepare the links for the show and order lines
 143 if ($show == 'all') {
 144     $link1 .= '<b>'.$showalltags.'</b>';
 145 } else {
 146     $link1 .= '<a href="'.$myurl.'?show=all'.$courselink.'">'.$showalltags.'</a>';
 147 }
 148 //if ($show == 'official') { //add back in if you start to use official course tags
 149 //    $link1 .= ' | <b>'.$showofficialtags.'</b>';
 150 //} else {
 151 //    $link1 .= ' | <a href="'.$myurl.'?show=official'.$courselink.'">'.$showofficialtags.'</a>';
 152 //}
 153 if ($show == 'community') {
 154     $link1 .= ' | <b>'.$showcommtags.'</b>';
 155 } else {
 156     $link1 .= ' | <a href="'.$myurl.'?show=community'.$courselink.'">'.$showcommtags.'</a>';
 157 }
 158 if ($loggedin) {
 159     if ($show == 'my') {
 160         $link1 .= ' | <b>'.$showmytags.'</b>';
 161     } else {
 162         $link1 .= ' | <a href="'.$myurl.'?show=my'.$courselink.'">'.$showmytags.'</a>';
 163     }
 164 }
 165 if ($courseid) {
 166     if ($show == 'course') {
 167         $link1 .= ' | <b>'.get_string('moreshowcoursetags', $tagslang, $course->fullname).'</b>';
 168     } else {
 169         $link1 .= ' | <a href="'.$myurl.'?show=course'.$courselink.'">'.get_string('moreshowcoursetags', $tagslang, $course->fullname).'</a>';
 170     }
 171 }
 172 if ($sort == 'alpha') {
 173     $link2 .= '<b>'.$orderalpha.'</b> | ';
 174 } else {
 175     $link2 .= '<a href="'.$myurl2.'&amp;sort=alpha'.$courselink.'">'.$orderalpha.'</a> | ';
 176 }
 177 if ($sort == 'popularity') {
 178     $link2 .= '<b>'.$orderpop.'</b> | ';
 179 } else {
 180     $link2 .= '<a href="'.$myurl2.'&amp;sort=popularity'.$courselink.'">'.$orderpop.'</a> | ';
 181 }
 182 if ($sort == 'date') {
 183     $link2 .= '<b>'.$orderdate.'</b>';
 184 } else {
 185     $link2 .= '<a href="'.$myurl2.'&amp;sort=date'.$courselink.'">'.$orderdate.'</a>';
 186 }
 187
 188 // Prepare output
 189 $fclass = '';
 190 // make the tags larger when there are not so many
 191 if (strlen($tags) < 10000) { $fclass = 'coursetag_more_large'; }
 192 $outstr = '
 193     <div class="coursetag_more_title">
 194         <div style="padding-bottom:5px">'.$welcome.'</div>
 195         <div class="coursetag_more_link">'.$link1.'</div>
 196         <div class="coursetag_more_link">'.$link2.'</div>
 197     </div>
 198     <div class="coursetag_more_tags '.$fclass.'">'.
 199         $tags.'
 200     </div>';
 201 echo $outstr;
 202
 203 echo $OUTPUT->footer();