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     $courseshortname = format_string($course->shortname, true, array('context' => get_context_instance(CONTEXT_COURSE, $courseid)));
  71     $PAGE->navbar->add($courseshortname, new moodle_url('/course/view.php', array('id'=>$courseid)));
  72 }
  73 $PAGE->navbar->add($title);
  74 $PAGE->set_title($title);
  75 $PAGE->set_heading($COURSE->fullname);
  76 echo $OUTPUT->header();
  77 echo $OUTPUT->heading($title, 2, 'centre');
  78
  79 // Prepare data for tags
  80 $courselink = '';
  81 if ($courseid) { $courselink = '&amp;courseid='.$courseid; }
  82 $myurl = $CFG->wwwroot.'/tag/coursetags_more.php';
  83 $myurl2 = $CFG->wwwroot.'/tag/coursetags_more.php?show='.$show;
  84
  85 // Course tags
  86 if ($show == 'course' and $courseid) {
  87
  88     if ($sort == 'popularity') {
  89         $tags = coursetag_print_cloud(coursetag_get_tags($courseid, 0, '', 0, 'popularity'), true, 200, 90);
  90     } else if ($sort == 'date') {
  91         $tags = coursetag_print_cloud(coursetag_get_tags($courseid, 0, '', 0, 'timemodified'), true, 200, 90);
  92     } else {
  93         $tags = coursetag_print_cloud(coursetag_get_tags($courseid, 0, '', 0, 'name'), true, 200, 90);
  94     }
  95
  96 // My tags
  97 } else if ($show == 'my' and $loggedin) {
  98
  99     if ($sort == 'popularity') {
 100         $tags = coursetag_print_cloud(coursetag_get_tags(0, $USER->id, 'default', 0, 'popularity'), true, 200, 90);
 101     } else if ($sort == 'date') {
 102         $tags = coursetag_print_cloud(coursetag_get_tags(0, $USER->id, 'default', 0, 'timemodified'), true, 200, 90);
 103     } else {
 104         $tags = coursetag_print_cloud(coursetag_get_tags(0, $USER->id, 'default', 0, 'name'), true, 200, 90);
 105     }
 106
 107 // Official course tags
 108 } else if ($show == 'official') {
 109
 110     if ($sort == 'popularity') {
 111         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'official', 0, 'popularity'), true, 200, 90);
 112     } else if ($sort == 'date') {
 113         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'official', 0, 'timemodified'), true, 200, 90);
 114     } else {
 115         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'official', 0, 'name'), true, 200, 90);
 116     }
 117
 118 // Community (official and personal together) also called user tags
 119 } else if ($show == 'community') {
 120
 121     if ($sort == 'popularity') {
 122         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'default', 0, 'popularity'), true, 200, 90);
 123     } else if ($sort == 'date') {
 124         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'default', 0, 'timemodified'), true, 200, 90);
 125     } else {
 126         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'default', 0, 'name'), true, 200, 90);
 127     }
 128
 129 // All tags for courses and blogs and any thing else tagged - the fallback default ($show == all)
 130 } else {
 131
 132     $subtitle = $showalltags;
 133     if ($sort == 'popularity') {
 134         $tags = coursetag_print_cloud(coursetag_get_all_tags('popularity'), true, 200, 90);
 135     } else if ($sort == 'date') {
 136         $tags = coursetag_print_cloud(coursetag_get_all_tags('timemodified'), true, 200, 90);
 137     } else {
 138         $tags = coursetag_print_cloud(coursetag_get_all_tags('name'), true, 200, 90);
 139     }
 140
 141 }
 142
 143 // Prepare the links for the show and order lines
 144 if ($show == 'all') {
 145     $link1 .= '<b>'.$showalltags.'</b>';
 146 } else {
 147     $link1 .= '<a href="'.$myurl.'?show=all'.$courselink.'">'.$showalltags.'</a>';
 148 }
 149 //if ($show == 'official') { //add back in if you start to use official course tags
 150 //    $link1 .= ' | <b>'.$showofficialtags.'</b>';
 151 //} else {
 152 //    $link1 .= ' | <a href="'.$myurl.'?show=official'.$courselink.'">'.$showofficialtags.'</a>';
 153 //}
 154 if ($show == 'community') {
 155     $link1 .= ' | <b>'.$showcommtags.'</b>';
 156 } else {
 157     $link1 .= ' | <a href="'.$myurl.'?show=community'.$courselink.'">'.$showcommtags.'</a>';
 158 }
 159 if ($loggedin) {
 160     if ($show == 'my') {
 161         $link1 .= ' | <b>'.$showmytags.'</b>';
 162     } else {
 163         $link1 .= ' | <a href="'.$myurl.'?show=my'.$courselink.'">'.$showmytags.'</a>';
 164     }
 165 }
 166 if ($courseid) {
 167     $fullname = format_string($course->fullname, true, array('context' => get_context_instance(CONTEXT_COURSE, $course->id)));
 168     if ($show == 'course') {
 169         $link1 .= ' | <b>'.get_string('moreshowcoursetags', $tagslang, $fullname).'</b>';
 170     } else {
 171         $link1 .= ' | <a href="'.$myurl.'?show=course'.$courselink.'">'.get_string('moreshowcoursetags', $tagslang, $fullname).'</a>';
 172     }
 173 }
 174 if ($sort == 'alpha') {
 175     $link2 .= '<b>'.$orderalpha.'</b> | ';
 176 } else {
 177     $link2 .= '<a href="'.$myurl2.'&amp;sort=alpha'.$courselink.'">'.$orderalpha.'</a> | ';
 178 }
 179 if ($sort == 'popularity') {
 180     $link2 .= '<b>'.$orderpop.'</b> | ';
 181 } else {
 182     $link2 .= '<a href="'.$myurl2.'&amp;sort=popularity'.$courselink.'">'.$orderpop.'</a> | ';
 183 }
 184 if ($sort == 'date') {
 185     $link2 .= '<b>'.$orderdate.'</b>';
 186 } else {
 187     $link2 .= '<a href="'.$myurl2.'&amp;sort=date'.$courselink.'">'.$orderdate.'</a>';
 188 }
 189
 190 // Prepare output
 191 $fclass = '';
 192 // make the tags larger when there are not so many
 193 if (strlen($tags) < 10000) { $fclass = 'coursetag_more_large'; }
 194 $outstr = '
 195     <div class="coursetag_more_title">
 196         <div style="padding-bottom:5px">'.$welcome.'</div>
 197         <div class="coursetag_more_link">'.$link1.'</div>
 198         <div class="coursetag_more_link">'.$link2.'</div>
 199     </div>
 200     <div class="coursetag_more_tags '.$fclass.'">'.
 201         $tags.'
 202     </div>';
 203 echo $outstr;
 204
 205 echo $OUTPUT->footer();