Proyectos de Subversion Moodle

<?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/>.

/**

 * @package    core_tag

 * @category   tag

 * @copyright  2007 Luiz Cruz <luiz.laydner@gmail.com>

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

require_once('../config.php');

require_once($CFG->dirroot . '/lib/weblib.php');

require_once($CFG->dirroot . '/blog/lib.php');

require_login();

if (empty($CFG->usetags)) {

    throw new \moodle_exception('tagsaredisabled', 'tag');

}

$tagid       = optional_param('id', 0, PARAM_INT); // tag id

$tagname     = optional_param('tag', '', PARAM_TAG); // tag

$tagareaid   = optional_param('ta', 0, PARAM_INT); // Tag area id.

$exclusivemode = optional_param('excl', 0, PARAM_BOOL); // Exclusive mode (show entities in one tag area only).

$page        = optional_param('page', 0, PARAM_INT); // Page to display.

$fromctx     = optional_param('from', null, PARAM_INT);

$ctx         = optional_param('ctx', null, PARAM_INT);

$rec         = optional_param('rec', 1, PARAM_INT);

$edit        = optional_param('edit', -1, PARAM_BOOL);

$systemcontext   = context_system::instance();

if ($tagname) {

    $tagcollid = optional_param('tc', 0, PARAM_INT);

    if (!$tagcollid) {

        // Tag name specified but tag collection was not. Try to guess it.

        $tags = core_tag_tag::guess_by_name($tagname, '*');

        if (count($tags) > 1) {

            // This tag was found in more than one collection, redirect to search.

            redirect(new moodle_url('/tag/search.php', array('query' => $tagname)));

        } else if (count($tags) == 1) {

            $tag = reset($tags);

        }

    } else {

        if (!$tag = core_tag_tag::get_by_name($tagcollid, $tagname, '*')) {

            redirect(new moodle_url('/tag/search.php', array('tc' => $tagcollid, 'query' => $tagname)));

        }

    }

} else if ($tagid) {

    $tag = core_tag_tag::get($tagid, '*');

}

unset($tagid);

if (empty($tag)) {

    redirect(new moodle_url('/tag/search.php'));

}

if ($ctx && ($context = context::instance_by_id($ctx, IGNORE_MISSING)) && $context->contextlevel >= CONTEXT_COURSE) {

    list($context, $course, $cm) = get_context_info_array($context->id);

    require_login($course, false, $cm, false, true);

    $PAGE->set_secondary_navigation(false);

} else {

    $PAGE->set_context($systemcontext);

}

$tagcollid = $tag->tagcollid;

$pageurl = $tag->get_view_url($exclusivemode, $fromctx, $ctx, $rec);

$PAGE->set_url($pageurl);

$PAGE->set_subpage($tag->id);

$tagnode = $PAGE->navigation->find('tags', null);

$tagnode->make_active();

$PAGE->set_pagelayout('standard');

$PAGE->set_blocks_editing_capability('moodle/tag:editblocks');

$buttons = '';

if (has_capability('moodle/tag:manage', context_system::instance())) {

    $buttons .= $OUTPUT->single_button(new moodle_url('/tag/manage.php'),

            get_string('managetags', 'tag'), 'GET');

}

if ($PAGE->user_allowed_editing()) {

    if ($edit != -1) {

        $USER->editing = $edit;

    }

    $buttons .= $OUTPUT->edit_button(clone($PAGE->url));

}

$PAGE->navbar->add($tagname, $pageurl);

$PAGE->set_title(get_string('tag', 'tag') .' - '. $tag->get_display_name());

$PAGE->set_heading($COURSE->fullname);

$PAGE->set_button($buttons);

// Find all areas in this collection and their items tagged with this tag.

$tagareas = core_tag_collection::get_areas($tagcollid);

if ($tagareaid) {

    $tagareas = array_intersect_key($tagareas, array($tagareaid => 1));

}

if (!$tagareaid && count($tagareas) == 1) {

    // Automatically set "exclusive" mode for tag collection with one tag area only.

    $exclusivemode = 1;

}

$entities = array();

foreach ($tagareas as $ta) {

    $entities[] = $tag->get_tag_index($ta, $exclusivemode, $fromctx, $ctx, $rec, $page);

}

$entities = array_filter($entities);

$tagrenderer = $PAGE->get_renderer('core', 'tag');

$pagecontents = $tagrenderer->tag_index_page($tag, array_filter($entities), $tagareaid,

        $exclusivemode, $fromctx, $ctx, $rec, $page);

echo $OUTPUT->header();

echo $pagecontents;

echo $OUTPUT->footer();