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_TEXT); //alpha, date or popularity
  13 $show = optional_param('show', 'all', PARAM_TEXT); //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 // Language strings
  49 $tagslang = 'block_tags';
  50 $title = get_string('moretitle', $tagslang);
  51 $link1 = get_string('moreshow', $tagslang);
  52 $link2 = get_string('moreorder', $tagslang);
  53 $showalltags = get_string('moreshowalltags', $tagslang);
  54 $showofficialtags = get_string('moreshowofficialtags', $tagslang);
  55 $showmytags = get_string('moreshowmytags', $tagslang);
  56 $showcommtags = get_string('moreshowcommtags', $tagslang);
  57 $orderalpha = get_string('moreorderalpha', $tagslang);
  58 $orderdate = get_string('moreorderdate', $tagslang);
  59 $orderpop = get_string('moreorderpop', $tagslang);
  60 $welcome = get_string('morewelcome', $tagslang);
  61
  62 // The title and breadcrumb
  63 if ($courseid) {
  64     $PAGE->navbar->add(format_string($course->shortname), new moodle_url('/course/view.php', array('id'=>$courseid)));
  65 }
  66 $PAGE->navbar->add($title);
  67 $PAGE->set_title($title);
  68 echo $OUTPUT->header();
  69 echo $OUTPUT->heading($title, 2, 'centre');
  70
  71 // Prepare data for tags
  72 $courselink = '';
  73 if ($courseid) { $courselink = '&amp;courseid='.$courseid; }
  74 $myurl = $CFG->wwwroot.'/tag/coursetags_more.php';
  75 $myurl2 = $CFG->wwwroot.'/tag/coursetags_more.php?show='.$show;
  76
  77 // Course tags
  78 if ($show == 'course' and $courseid) {
  79
  80     if ($sort == 'popularity') {
  81         $tags = coursetag_print_cloud(coursetag_get_tags($courseid, 0, '', 0, 'popularity'), true, 200, 90);
  82     } else if ($sort == 'date') {
  83         $tags = coursetag_print_cloud(coursetag_get_tags($courseid, 0, '', 0, 'timemodified'), true, 200, 90);
  84     } else {
  85         $tags = coursetag_print_cloud(coursetag_get_tags($courseid, 0, '', 0, 'name'), true, 200, 90);
  86     }
  87
  88 // My tags
  89 } else if ($show == 'my' and $loggedin) {
  90
  91     if ($sort == 'popularity') {
  92         $tags = coursetag_print_cloud(coursetag_get_tags(0, $USER->id, 'default', 0, 'popularity'), true, 200, 90);
  93     } else if ($sort == 'date') {
  94         $tags = coursetag_print_cloud(coursetag_get_tags(0, $USER->id, 'default', 0, 'timemodified'), true, 200, 90);
  95     } else {
  96         $tags = coursetag_print_cloud(coursetag_get_tags(0, $USER->id, 'default', 0, 'name'), true, 200, 90);
  97     }
  98
  99 // Official course tags
 100 } else if ($show == 'official') {
 101
 102     if ($sort == 'popularity') {
 103         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'official', 0, 'popularity'), true, 200, 90);
 104     } else if ($sort == 'date') {
 105         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'official', 0, 'timemodified'), true, 200, 90);
 106     } else {
 107         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'official', 0, 'name'), true, 200, 90);
 108     }
 109
 110 // Community (official and personal together) also called user tags
 111 } else if ($show == 'community') {
 112
 113     if ($sort == 'popularity') {
 114         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'default', 0, 'popularity'), true, 200, 90);
 115     } else if ($sort == 'date') {
 116         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'default', 0, 'timemodified'), true, 200, 90);
 117     } else {
 118         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'default', 0, 'name'), true, 200, 90);
 119     }
 120
 121 // All tags for courses and blogs and any thing else tagged - the fallback default ($show == all)
 122 } else {
 123
 124     $subtitle = $showalltags;
 125     if ($sort == 'popularity') {
 126         $tags = coursetag_print_cloud(coursetag_get_all_tags('popularity'), true, 200, 90);
 127     } else if ($sort == 'date') {
 128         $tags = coursetag_print_cloud(coursetag_get_all_tags('timemodified'), true, 200, 90);
 129     } else {
 130         $tags = coursetag_print_cloud(coursetag_get_all_tags('name'), true, 200, 90);
 131     }
 132
 133 }
 134
 135 // Prepare the links for the show and order lines
 136 if ($show == 'all') {
 137     $link1 .= '<b>'.$showalltags.'</b>';
 138 } else {
 139     $link1 .= '<a href="'.$myurl.'?show=all'.$courselink.'">'.$showalltags.'</a>';
 140 }
 141 //if ($show == 'official') { //add back in if you start to use official course tags
 142 //    $link1 .= ' | <b>'.$showofficialtags.'</b>';
 143 //} else {
 144 //    $link1 .= ' | <a href="'.$myurl.'?show=official'.$courselink.'">'.$showofficialtags.'</a>';
 145 //}
 146 if ($show == 'community') {
 147     $link1 .= ' | <b>'.$showcommtags.'</b>';
 148 } else {
 149     $link1 .= ' | <a href="'.$myurl.'?show=community'.$courselink.'">'.$showcommtags.'</a>';
 150 }
 151 if ($loggedin) {
 152     if ($show == 'my') {
 153         $link1 .= ' | <b>'.$showmytags.'</b>';
 154     } else {
 155         $link1 .= ' | <a href="'.$myurl.'?show=my'.$courselink.'">'.$showmytags.'</a>';
 156     }
 157 }
 158 if ($courseid) {
 159     if ($show == 'course') {
 160         $link1 .= ' | <b>'.get_string('moreshowcoursetags', $tagslang, $course->fullname).'</b>';
 161     } else {
 162         $link1 .= ' | <a href="'.$myurl.'?show=course'.$courselink.'">'.get_string('moreshowcoursetags', $tagslang, $course->fullname).'</a>';
 163     }
 164 }
 165 if ($sort == 'alpha') {
 166     $link2 .= '<b>'.$orderalpha.'</b> | ';
 167 } else {
 168     $link2 .= '<a href="'.$myurl2.'&amp;sort=alpha'.$courselink.'">'.$orderalpha.'</a> | ';
 169 }
 170 if ($sort == 'popularity') {
 171     $link2 .= '<b>'.$orderpop.'</b> | ';
 172 } else {
 173     $link2 .= '<a href="'.$myurl2.'&amp;sort=popularity'.$courselink.'">'.$orderpop.'</a> | ';
 174 }
 175 if ($sort == 'date') {
 176     $link2 .= '<b>'.$orderdate.'</b>';
 177 } else {
 178     $link2 .= '<a href="'.$myurl2.'&amp;sort=date'.$courselink.'">'.$orderdate.'</a>';
 179 }
 180
 181 // Prepare output
 182 $fclass = '';
 183 // make the tags larger when there are not so many
 184 if (strlen($tags) < 10000) { $fclass = 'coursetag_more_large'; }
 185 $outstr = '
 186     <div class="coursetag_more_title">
 187         <div style="padding-bottom:5px">'.$welcome.
 188             $OUTPUT->old_help_icon('usingtags', 'using tags', $tagslang).'
 189         </div>
 190         <div class="coursetag_more_link">'.$link1.'</div>
 191         <div class="coursetag_more_link">'.$link2.'</div>
 192     </div>
 193     <div class="coursetag_more_tags '.$fclass.'">'.
 194         $tags.'
 195     </div>';
 196 echo $outstr;
 197
 198 echo $OUTPUT->footer();