tag/coursetags_more.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17
  18 /**
  19  * A full display of tags allowing some filtering and reordering
  20  *
  21  * @package    core_tag
  22  * @category   tag
  23  * @copyright  2007 j.beedell@open.ac.uk
  24  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25  */
  26
  27 require_once('../config.php');
  28 require_once($CFG->dirroot.'/tag/coursetagslib.php');
  29 require_once($CFG->dirroot.'/tag/lib.php');
  30
  31 $sort = optional_param('sort', 'alpha', PARAM_ALPHA); //alpha, date or popularity
  32 $show = optional_param('show', 'all', PARAM_ALPHA); //all, my, official, community or course
  33 $courseid = optional_param('courseid', 0, PARAM_INT);
  34
  35 $url = new moodle_url('/tag/coursetags_more.php');
  36 if ($sort !== 'alpha') {
  37     $url->param('sort', $sort);
  38 }
  39 if ($show !== 'all') {
  40     $url->param('show', $show);
  41 }
  42 if ($courseid !== 0) {
  43     $url->param('courseid', $courseid);
  44 }
  45 $PAGE->set_url($url);
  46
  47 if (empty($CFG->usetags)) {
  48     print_error('tagsaredisabled', 'tag');
  49 }
  50
  51 // Some things require logging in
  52 if ($CFG->forcelogin or $show == 'my') {
  53     require_login();
  54 }
  55
  56 // Permissions
  57 $loggedin = isloggedin() && !isguestuser();
  58
  59 // Course check
  60 if ($courseid) {
  61     if (!($course = $DB->get_record('course', array('id'=>$courseid)))) {
  62         $courseid = 0;
  63     }
  64     if ($courseid == SITEID) $courseid = 0;
  65 }
  66
  67 if ($courseid) {
  68     $PAGE->set_context(get_context_instance(CONTEXT_COURSE, $courseid));
  69 } else {
  70     $PAGE->set_context(get_system_context());
  71 }
  72
  73 // Language strings
  74 $tagslang = 'block_tags';
  75 $title = get_string('moretitle', $tagslang);
  76 $link1 = get_string('moreshow', $tagslang);
  77 $link2 = get_string('moreorder', $tagslang);
  78 $showalltags = get_string('moreshowalltags', $tagslang);
  79 $showofficialtags = get_string('moreshowofficialtags', $tagslang);
  80 $showmytags = get_string('moreshowmytags', $tagslang);
  81 $showcommtags = get_string('moreshowcommtags', $tagslang);
  82 $orderalpha = get_string('moreorderalpha', $tagslang);
  83 $orderdate = get_string('moreorderdate', $tagslang);
  84 $orderpop = get_string('moreorderpop', $tagslang);
  85 $welcome = get_string('morewelcome', $tagslang);
  86
  87 // The title and breadcrumb
  88 if ($courseid) {
  89     $courseshortname = format_string($course->shortname, true, array('context' => get_context_instance(CONTEXT_COURSE, $courseid)));
  90     $PAGE->navbar->add($courseshortname, new moodle_url('/course/view.php', array('id'=>$courseid)));
  91 }
  92 $PAGE->navbar->add($title);
  93 $PAGE->set_title($title);
  94 $PAGE->set_heading($COURSE->fullname);
  95 echo $OUTPUT->header();
  96 echo $OUTPUT->heading($title, 2, 'centre');
  97
  98 // Prepare data for tags
  99 $courselink = '';
 100 if ($courseid) { $courselink = '&amp;courseid='.$courseid; }
 101 $myurl = $CFG->wwwroot.'/tag/coursetags_more.php';
 102 $myurl2 = $CFG->wwwroot.'/tag/coursetags_more.php?show='.$show;
 103
 104 // Course tags
 105 if ($show == 'course' and $courseid) {
 106
 107     if ($sort == 'popularity') {
 108         $tags = coursetag_print_cloud(coursetag_get_tags($courseid, 0, '', 0, 'popularity'), true, 200, 90);
 109     } else if ($sort == 'date') {
 110         $tags = coursetag_print_cloud(coursetag_get_tags($courseid, 0, '', 0, 'timemodified'), true, 200, 90);
 111     } else {
 112         $tags = coursetag_print_cloud(coursetag_get_tags($courseid, 0, '', 0, 'name'), true, 200, 90);
 113     }
 114
 115 // My tags
 116 } else if ($show == 'my' and $loggedin) {
 117
 118     if ($sort == 'popularity') {
 119         $tags = coursetag_print_cloud(coursetag_get_tags(0, $USER->id, 'default', 0, 'popularity'), true, 200, 90);
 120     } else if ($sort == 'date') {
 121         $tags = coursetag_print_cloud(coursetag_get_tags(0, $USER->id, 'default', 0, 'timemodified'), true, 200, 90);
 122     } else {
 123         $tags = coursetag_print_cloud(coursetag_get_tags(0, $USER->id, 'default', 0, 'name'), true, 200, 90);
 124     }
 125
 126 // Official course tags
 127 } else if ($show == 'official') {
 128
 129     if ($sort == 'popularity') {
 130         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'official', 0, 'popularity'), true, 200, 90);
 131     } else if ($sort == 'date') {
 132         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'official', 0, 'timemodified'), true, 200, 90);
 133     } else {
 134         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'official', 0, 'name'), true, 200, 90);
 135     }
 136
 137 // Community (official and personal together) also called user tags
 138 } else if ($show == 'community') {
 139
 140     if ($sort == 'popularity') {
 141         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'default', 0, 'popularity'), true, 200, 90);
 142     } else if ($sort == 'date') {
 143         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'default', 0, 'timemodified'), true, 200, 90);
 144     } else {
 145         $tags = coursetag_print_cloud(coursetag_get_tags(0, 0, 'default', 0, 'name'), true, 200, 90);
 146     }
 147
 148 // All tags for courses and blogs and any thing else tagged - the fallback default ($show == all)
 149 } else {
 150
 151     $subtitle = $showalltags;
 152     if ($sort == 'popularity') {
 153         $tags = coursetag_print_cloud(coursetag_get_all_tags('popularity'), true, 200, 90);
 154     } else if ($sort == 'date') {
 155         $tags = coursetag_print_cloud(coursetag_get_all_tags('timemodified'), true, 200, 90);
 156     } else {
 157         $tags = coursetag_print_cloud(coursetag_get_all_tags('name'), true, 200, 90);
 158     }
 159
 160 }
 161
 162 // Prepare the links for the show and order lines
 163 if ($show == 'all') {
 164     $link1 .= '<b>'.$showalltags.'</b>';
 165 } else {
 166     $link1 .= '<a href="'.$myurl.'?show=all'.$courselink.'">'.$showalltags.'</a>';
 167 }
 168 //if ($show == 'official') { //add back in if you start to use official course tags
 169 //    $link1 .= ' | <b>'.$showofficialtags.'</b>';
 170 //} else {
 171 //    $link1 .= ' | <a href="'.$myurl.'?show=official'.$courselink.'">'.$showofficialtags.'</a>';
 172 //}
 173 if ($show == 'community') {
 174     $link1 .= ' | <b>'.$showcommtags.'</b>';
 175 } else {
 176     $link1 .= ' | <a href="'.$myurl.'?show=community'.$courselink.'">'.$showcommtags.'</a>';
 177 }
 178 if ($loggedin) {
 179     if ($show == 'my') {
 180         $link1 .= ' | <b>'.$showmytags.'</b>';
 181     } else {
 182         $link1 .= ' | <a href="'.$myurl.'?show=my'.$courselink.'">'.$showmytags.'</a>';
 183     }
 184 }
 185 if ($courseid) {
 186     $fullname = format_string($course->fullname, true, array('context' => get_context_instance(CONTEXT_COURSE, $course->id)));
 187     if ($show == 'course') {
 188         $link1 .= ' | <b>'.get_string('moreshowcoursetags', $tagslang, $fullname).'</b>';
 189     } else {
 190         $link1 .= ' | <a href="'.$myurl.'?show=course'.$courselink.'">'.get_string('moreshowcoursetags', $tagslang, $fullname).'</a>';
 191     }
 192 }
 193 if ($sort == 'alpha') {
 194     $link2 .= '<b>'.$orderalpha.'</b> | ';
 195 } else {
 196     $link2 .= '<a href="'.$myurl2.'&amp;sort=alpha'.$courselink.'">'.$orderalpha.'</a> | ';
 197 }
 198 if ($sort == 'popularity') {
 199     $link2 .= '<b>'.$orderpop.'</b> | ';
 200 } else {
 201     $link2 .= '<a href="'.$myurl2.'&amp;sort=popularity'.$courselink.'">'.$orderpop.'</a> | ';
 202 }
 203 if ($sort == 'date') {
 204     $link2 .= '<b>'.$orderdate.'</b>';
 205 } else {
 206     $link2 .= '<a href="'.$myurl2.'&amp;sort=date'.$courselink.'">'.$orderdate.'</a>';
 207 }
 208
 209 // Prepare output
 210 $fclass = '';
 211 // make the tags larger when there are not so many
 212 if (strlen($tags) < 10000) { $fclass = 'coursetag_more_large'; }
 213 $outstr = '
 214     <div class="coursetag_more_title">
 215         <div style="padding-bottom:5px">'.$welcome.'</div>
 216         <div class="coursetag_more_link">'.$link1.'</div>
 217         <div class="coursetag_more_link">'.$link2.'</div>
 218     </div>
 219     <div class="coursetag_more_tags '.$fclass.'">'.
 220         $tags.'
 221     </div>';
 222 echo $outstr;
 223
 224 echo $OUTPUT->footer();