<?php // This file is part of Moodle - http://moodle.org/ // // Moodle is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Moodle is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Moodle. If not, see <http://www.gnu.org/licenses/>. /** * Blog tags block. * * @package block_blog_tags * @copyright 2006 Shane Elliott * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ defined('MOODLE_INTERNAL') || die(); define('BLOCK_BLOG_TAGS_DEFAULTTIMEWITHIN', 90); define('BLOCK_BLOG_TAGS_DEFAULTNUMBEROFTAGS', 20); define('BLOCK_BLOG_TAGS_DEFAULTSORT', 'name'); class block_blog_tags extends block_base { function init() { $this->title = get_string('pluginname', 'block_blog_tags'); } function instance_allow_multiple() { return true; } function has_config() { return false; } function applicable_formats() { return array('all' => true, 'my' => false, 'tag' => false); } function instance_allow_config() { return true; } function specialization() { // load userdefined title and make sure it's never empty if (empty($this->config->title)) { $this->title = get_string('pluginname', 'block_blog_tags'); } else { $this->title = $this->config->title; } } function get_content() { global $CFG, $SITE, $USER, $DB, $OUTPUT; if ($this->content !== NULL) { return $this->content; } // make sure blog and tags are actually enabled if (empty($CFG->bloglevel)) { $this->content = new stdClass(); $this->content->text = ''; if ($this->page->user_is_editing()) { $this->content->text = get_string('blogdisable', 'blog'); } return $this->content; } else if (!core_tag_tag::is_enabled('core', 'post')) { $this->content = new stdClass(); $this->content->text = ''; if ($this->page->user_is_editing()) { $this->content->text = get_string('tagsaredisabled', 'tag'); } return $this->content; } else if ($CFG->bloglevel < BLOG_GLOBAL_LEVEL and (!isloggedin() or isguestuser())) { $this->content = new stdClass(); $this->content->text = ''; return $this->content; } // require the libs and do the work require_once($CFG->dirroot .'/blog/lib.php'); if (empty($this->config)) { $this->config = new stdClass(); } if (empty($this->config->timewithin)) { $this->config->timewithin = BLOCK_BLOG_TAGS_DEFAULTTIMEWITHIN; } if (empty($this->config->numberoftags)) { $this->config->numberoftags = BLOCK_BLOG_TAGS_DEFAULTNUMBEROFTAGS; } if (empty($this->config->sort)) { $this->config->sort = BLOCK_BLOG_TAGS_DEFAULTSORT; } $this->content = new stdClass(); $this->content->text = ''; $this->content->footer = ''; /// Get a list of tags $timewithin = time() - $this->config->timewithin * 24 * 60 * 60; /// convert to seconds $context = $this->page->context; // admins should be able to read all tags $type = ''; if (!has_capability('moodle/user:readuserblogs', context_system::instance())) { $type = " AND (p.publishstate = 'site' or p.publishstate='public')"; } $sql = "SELECT t.id, t.isstandard, t.rawname, t.name, COUNT(DISTINCT ti.id) AS ct FROM {tag} t, {tag_instance} ti, {post} p, {blog_association} ba WHERE t.id = ti.tagid AND p.id = ti.itemid $type AND ti.itemtype = 'post' AND ti.component = 'core' AND ti.timemodified > $timewithin"; if ($context->contextlevel == CONTEXT_MODULE) { $sql .= " AND ba.contextid = $context->id AND p.id = ba.blogid "; } else if ($context->contextlevel == CONTEXT_COURSE) { $sql .= " AND ba.contextid = $context->id AND p.id = ba.blogid "; } $sql .= " GROUP BY t.id, t.isstandard, t.name, t.rawname ORDER BY ct DESC, t.name ASC"; if ($tags = $DB->get_records_sql($sql, null, 0, $this->config->numberoftags)) { /// There are 2 things to do: /// 1. tags with the same count should have the same size class /// 2. however many tags we have should be spread evenly over the /// 20 size classes $totaltags = count($tags); $currenttag = 0; $size = 20; $lasttagct = -1; $etags = array(); foreach ($tags as $tag) { $currenttag++; if ($currenttag == 1) { $lasttagct = $tag->ct; $size = 20; } else if ($tag->ct != $lasttagct) { $lasttagct = $tag->ct; $size = 20 - ( (int)((($currenttag - 1) / $totaltags) * 20) ); } $tag->class = ($tag->isstandard ? "standardtag " : "") . "s$size"; $etags[] = $tag; } /// Now we sort the tag display order $CFG->tagsort = $this->config->sort; usort($etags, "block_blog_tags_sort"); /// Finally we create the output /// Accessibility: markup as a list. $this->content->text .= "\n<ul class='inline-list'>\n"; foreach ($etags as $tag) { $blogurl = new moodle_url('/blog/index.php'); switch ($CFG->bloglevel) { case BLOG_USER_LEVEL: $blogurl->param('userid', $USER->id); break; default: if ($context->contextlevel == CONTEXT_MODULE) { $blogurl->param('modid', $context->instanceid); } else if ($context->contextlevel == CONTEXT_COURSE) { $blogurl->param('courseid', $context->instanceid); } break; } $blogurl->param('tagid', $tag->id); $link = html_writer::link($blogurl, core_tag_tag::make_display_name($tag), array('class' => $tag->class, 'title' => get_string('numberofentries', 'blog', $tag->ct))); $this->content->text .= '<li>' . $link . '</li> '; } $this->content->text .= "\n</ul>\n"; } return $this->content; } /** * Return the plugin config settings for external functions. * * @return stdClass the configs for both the block instance and plugin * @since Moodle 3.8 */ public function get_config_for_external() { // Return all settings for all users since it is safe (no private keys, etc..). $configs = !empty($this->config) ? $this->config : new stdClass(); return (object) [ 'instance' => $configs, 'plugin' => new stdClass(), ]; }> } > /** > * This block shouldn't be added to a page if the blogs and the tags advanced features are disabled. function block_blog_tags_sort($a, $b) { > * global $CFG; > * @param moodle_page $page > * @return bool if (empty($CFG->tagsort)) { > */ return 0; > public function can_block_be_added(moodle_page $page): bool { } else { > global $CFG; $tagsort = $CFG->tagsort; > } > return $CFG->enableblogs && $CFG->usetags; > }if (is_numeric($a->$tagsort)) { return (($a->$tagsort == $b->$tagsort) ? 0 : ($a->$tagsort > $b->$tagsort)) ? 1 : -1; } elseif (is_string($a->$tagsort)) { return strcmp($a->$tagsort, $b->$tagsort); //TODO: this is not compatible with UTF-8!! } else { return 0; } }< <