Proyectos de Subversion Moodle

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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
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/**
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 * Blog entry edit page
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 *
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 * @package    moodlecore
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 * @subpackage blog
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 * @copyright  2009 Nicolas Connault
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 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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 */
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require_once(__DIR__ . '/../config.php');
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require_once($CFG->dirroot . '/blog/lib.php');
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require_once($CFG->dirroot . '/blog/locallib.php');
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require_once($CFG->dirroot . '/comment/lib.php');
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require_once($CFG->dirroot . '/blog/edit_form.php');
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$action   = required_param('action', PARAM_ALPHA);
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$id       = optional_param('entryid', 0, PARAM_INT);
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$confirm  = optional_param('confirm', 0, PARAM_BOOL);
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$modid = optional_param('modid', 0, PARAM_INT); // To associate the entry with a module instance.
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$courseid = optional_param('courseid', 0, PARAM_INT); // To associate the entry with a course.
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if ($action == 'edit') {
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    $id = required_param('entryid', PARAM_INT);
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}
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$PAGE->set_url('/blog/edit.php', array('action' => $action,
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                                       'entryid' => $id,
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                                       'confirm' => $confirm,
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                                       'modid' => $modid,
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                                       'courseid' => $courseid));
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// If action is add, we ignore $id to avoid any further problems.
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if (!empty($id) && $action == 'add') {
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    $id = null;
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}
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$entry = new stdClass();
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$entry->id = null;
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if ($id) {
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    $entry = new blog_entry($id);   // Will trigger exception if not found.
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    $userid = $entry->userid;
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} else {
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    $userid = $USER->id;
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}
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$sitecontext = context_system::instance();
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$usercontext = context_user::instance($userid);
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if ($modid) {
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    $PAGE->set_context($sitecontext);
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} else {
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    $PAGE->set_context($usercontext);
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    $blognode = $PAGE->settingsnav->find('blogadd', null);
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    $blognode->make_active();
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}
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require_login($courseid);
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if (empty($CFG->enableblogs)) {
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    throw new \moodle_exception('blogdisable', 'blog');
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}
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if (isguestuser()) {
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    throw new \moodle_exception('noguest');
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}
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$returnurl = new moodle_url('/blog/index.php');
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if (!empty($courseid) && empty($modid)) {
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    $returnurl->param('courseid', $courseid);
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}
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// If a modid is given, guess courseid.
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if (!empty($modid)) {
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    $returnurl->param('modid', $modid);
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    $courseid = $DB->get_field('course_modules', 'course', array('id' => $modid));
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    $returnurl->param('courseid', $courseid);
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}
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$blogheaders = blog_get_headers();
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if (!has_capability('moodle/blog:create', $sitecontext) && !has_capability('moodle/blog:manageentries', $sitecontext)) {
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    throw new \moodle_exception('cannoteditentryorblog', 'blog');
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}
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// Make sure that the person trying to edit has access right.
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if ($id) {
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    if (!blog_user_can_edit_entry($entry)) {
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        throw new \moodle_exception('notallowedtoedit', 'blog');
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    }
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    $entry->subject      = clean_text($entry->subject);
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    $entry->summary      = clean_text($entry->summary, $entry->format);
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} else {
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    if (!has_capability('moodle/blog:create', $sitecontext)) {
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        throw new \moodle_exception('noentry', 'blog'); // The capability "manageentries" is not enough for adding.
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    }
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}
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$returnurl->param('userid', $userid);
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// Blog renderer.
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$output = $PAGE->get_renderer('blog');
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$strblogs = get_string('blogs', 'blog');
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if ($action === 'delete') {
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    // Init comment JS strings.
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    comment::init();
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    if (empty($entry->id)) {
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        throw new \moodle_exception('wrongentryid');
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    }
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    if (data_submitted() && $confirm && confirm_sesskey()) {
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        // Make sure the current user is the author of the blog entry, or has some deleteanyentry capability.
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        if (!blog_user_can_edit_entry($entry)) {
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            throw new \moodle_exception('nopermissionstodeleteentry', 'blog');
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        } else {
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            $entry->delete();
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            blog_rss_delete_file($userid);
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            redirect($returnurl);
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        }
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    } else if (blog_user_can_edit_entry($entry)) {
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        $optionsyes = array('entryid' => $id,
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                            'action' => 'delete',
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                            'confirm' => 1,
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                            'sesskey' => sesskey(),
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                            'courseid' => $courseid);
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        $optionsno = array('userid' => $entry->userid, 'courseid' => $courseid);
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        $PAGE->set_title($strblogs);
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        $PAGE->set_heading($SITE->fullname);
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        echo $OUTPUT->header();
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        // Output edit mode title.
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        echo $OUTPUT->heading($strblogs . ': ' . get_string('deleteentry', 'blog'), 2);
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        echo $OUTPUT->confirm(get_string('blogdeleteconfirm', 'blog', format_string($entry->subject)),
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                              new moodle_url('edit.php', $optionsyes),
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                              new moodle_url('index.php', $optionsno));
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        echo '<br />';
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        // Output the entry.
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        $entry->prepare_render();
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        echo $output->render($entry);
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        echo $OUTPUT->footer();
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        die;
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    }
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} else if ($action == 'add') {
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    $editmodetitle = $strblogs . ': ' . get_string('addnewentry', 'blog');
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    $PAGE->set_title($editmodetitle);
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    $PAGE->set_heading(fullname($USER));
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} else if ($action == 'edit') {
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    $editmodetitle = $strblogs . ': ' . get_string('editentry', 'blog');
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    $PAGE->set_title($editmodetitle);
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    $PAGE->set_heading(fullname($USER));
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}
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if (!empty($entry->id)) {
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    if ($CFG->useblogassociations && ($blogassociations = $DB->get_records('blog_association', array('blogid' => $entry->id)))) {
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        foreach ($blogassociations as $assocrec) {
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            $context = context::instance_by_id($assocrec->contextid);
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            switch ($context->contextlevel) {
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                case CONTEXT_COURSE:
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                    $entry->courseassoc = $assocrec->contextid;
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                    break;
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                case CONTEXT_MODULE:
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                    $entry->modassoc = $assocrec->contextid;
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                    break;
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            }
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        }
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    }
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}
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[$summaryoptions, $attachmentoptions] = blog_get_editor_options($entry);
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$blogeditform = new blog_edit_form(null, compact('entry',
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                                                 'summaryoptions',
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                                                 'attachmentoptions',
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                                                 'sitecontext',
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                                                 'courseid',
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                                                 'modid'));
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$entry = file_prepare_standard_editor($entry, 'summary', $summaryoptions, $sitecontext, 'blog', 'post', $entry->id);
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$entry = file_prepare_standard_filemanager($entry,
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                                           'attachment',
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                                           $attachmentoptions,
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                                           $sitecontext,
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                                           'blog',
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                                           'attachment',
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                                           $entry->id);
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if (!empty($entry->id)) {
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    $entry->tags = core_tag_tag::get_item_tags_array('core', 'post', $entry->id);
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}
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$entry->action = $action;
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// Set defaults.
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$blogeditform->set_data($entry);
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if ($blogeditform->is_cancelled()) {
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    redirect($returnurl);
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} else if ($data = $blogeditform->get_data()) {
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    switch ($action) {
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        case 'add':
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            $blogentry = new blog_entry(null, $data, $blogeditform);
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            $blogentry->add();
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            $blogentry->edit($data, $blogeditform, $summaryoptions, $attachmentoptions);
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        break;
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        case 'edit':
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            if (empty($entry->id)) {
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                throw new \moodle_exception('wrongentryid');
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            }
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            $entry->edit($data, $blogeditform, $summaryoptions, $attachmentoptions);
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        break;
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        default :
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            throw new \moodle_exception('invalidaction');
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    }
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    redirect($returnurl);
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}
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// GUI setup.
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switch ($action) {
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    case 'add':
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        // Prepare new empty form.
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        $entry->publishstate = 'site';
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        $strformheading = get_string('addnewentry', 'blog');
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        $entry->action       = $action;
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        if ($CFG->useblogassociations) {
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            // Pre-select the course for associations.
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            if ($courseid) {
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                $context = context_course::instance($courseid);
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                $entry->courseassoc = $context->id;
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            }
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            // Pre-select the mod for associations.
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            if ($modid) {
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                $context = context_module::instance($modid);
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                $entry->modassoc = $context->id;
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            }
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        }
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        break;
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    case 'edit':
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        if (empty($entry->id)) {
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            throw new \moodle_exception('wrongentryid');
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        }
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        $strformheading = get_string('updateentrywithid', 'blog');
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        break;
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    default :
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        throw new \moodle_exception('unknowaction');
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}
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$entry->modid = $modid;
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$entry->courseid = $courseid;
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echo $OUTPUT->header();
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// Output title for editing mode.
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if (isset($editmodetitle)) {
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    echo $OUTPUT->heading($editmodetitle, 2);
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}
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$blogeditform->display();
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echo $OUTPUT->footer();
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die;