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/>.

/**

 * Recent Blog Entries Block page.

 *

 * @package   block_blog_recent

 * @copyright 2009 Nicolas Connault

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

 */

defined('MOODLE_INTERNAL') || die();

/**

 * This block simply outputs a list of links to recent blog entries, depending on

 * the context of the current page.

 */

class block_blog_recent extends block_base {

    function init() {

        $this->title = get_string('pluginname', 'block_blog_recent');

        $this->content_type = BLOCK_TYPE_TEXT;

    }

    function applicable_formats() {

        return array('all' => true, 'my' => false, 'tag' => false);

    }

    function instance_allow_config() {

        return true;

    }

    function get_content() {

        global $CFG;

        if ($this->content !== NULL) {

            return $this->content;

        }

        // verify blog is enabled

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

            $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 ($CFG->bloglevel < BLOG_GLOBAL_LEVEL and (!isloggedin() or isguestuser())) {

            $this->content = new stdClass();

            $this->content->text = '';

            return $this->content;

        }

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

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

        if (empty($this->config)) {

            $this->config = new stdClass();

        }

        if (empty($this->config->recentbloginterval)) {

            $this->config->recentbloginterval = 8400;

        }

        if (empty($this->config->numberofrecentblogentries)) {

            $this->config->numberofrecentblogentries = 4;

        }

        $this->content = new stdClass();

        $this->content->footer = '';

        $this->content->text = '';

        $context = $this->page->context;

        $url = new moodle_url('/blog/index.php');

        $filter = array();

        if ($context->contextlevel == CONTEXT_MODULE) {

            $filter['module'] = $context->instanceid;

            $a = new stdClass;

            $a->type = get_string('modulename', $this->page->cm->modname);

            $strview = get_string('viewallmodentries', 'blog', $a);

            $url->param('modid', $context->instanceid);

        } else if ($context->contextlevel == CONTEXT_COURSE) {

            $filter['course'] = $context->instanceid;

            $a = new stdClass;

            $a->type = get_string('course');

            $strview = get_string('viewblogentries', 'blog', $a);

            $url->param('courseid', $context->instanceid);

        } else {

            $strview = get_string('viewsiteentries', 'blog');

        }

        $filter['since'] = $this->config->recentbloginterval;

        $bloglisting = new blog_listing($filter);

        $entries = $bloglisting->get_entries(0, $this->config->numberofrecentblogentries, 4);

        if (!empty($entries)) {

            $entrieslist = array();

            $viewblogurl = new moodle_url('/blog/index.php');

            foreach ($entries as $entryid => $entry) {

                $viewblogurl->param('entryid', $entryid);

                $entrylink = html_writer::link($viewblogurl, shorten_text(format_string($entry->subject, true,

                    ['context' => $context])));

                $entrieslist[] = $entrylink;

            }

            $this->content->text .= html_writer::alist($entrieslist, array('class'=>'list'));

            $viewallentrieslink = html_writer::link($url, $strview);

            $this->content->text .= $viewallentrieslink;

        } else {

            $this->content->text .= get_string('norecentblogentries', 'block_blog_recent');

        }

    }

    /**

     * 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 advanced feature is disabled.

     *

     * @param moodle_page $page

     * @return bool

     */

    public function can_block_be_added(moodle_page $page): bool {

        global $CFG;

        return $CFG->enableblogs;

    }

}