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/>.

/**

 * Global Search index page for entering queries and display of results

 *

 * @package   core_search

 * @copyright Prateek Sachan {@link http://prateeksachan.com}

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

 */

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

$page = optional_param('page', 0, PARAM_INT);

$q = optional_param('q', '', PARAM_NOTAGS);

$title = optional_param('title', '', PARAM_NOTAGS);

$contextid = optional_param('context', 0, PARAM_INT);

$cat = optional_param('cat', '', PARAM_NOTAGS);

$mycoursesonly = optional_param('mycoursesonly', 0, PARAM_INT);

if (\core_search\manager::is_search_area_categories_enabled()) {

    $cat = \core_search\manager::get_search_area_category_by_name($cat);

}

// Moving areaids, courseids, timestart, and timeend further down as they might come as an array if they come from the form.

$context = context_system::instance();

$pagetitle = get_string('globalsearch', 'search');

$PAGE->set_context($context);

$PAGE->set_pagelayout('standard');

$PAGE->set_title($pagetitle);

$PAGE->set_heading($pagetitle);

if (!empty($CFG->forcelogin)) {

    require_login();

}

require_capability('moodle/search:query', $context);

$searchrenderer = $PAGE->get_renderer('core_search');

if (\core_search\manager::is_global_search_enabled() === false) {

    $PAGE->set_url(new moodle_url('/search/index.php'));

    echo $OUTPUT->header();

    echo $searchrenderer->render_search_disabled();

    echo $OUTPUT->footer();

    exit;

}

$search = \core_search\manager::instance(true, true);

// Set up custom data for form.

$customdata = ['searchengine' => $search->get_engine()->get_plugin_name()];

if ($contextid) {

    // When a context is supplied, check if it's within course level. If so, show dropdown.

    $context = context::instance_by_id($contextid);

    $coursecontext = $context->get_course_context(false);

    if ($coursecontext) {

        $searchwithin = [];

        $searchwithin[''] = get_string('everywhere', 'search');

        $searchwithin['course'] = $coursecontext->get_context_name();

        if ($context->contextlevel != CONTEXT_COURSE) {

            $searchwithin['context'] = $context->get_context_name();

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

                $customdata['withincmid'] = $context->instanceid;

            }

        }

        $customdata['searchwithin'] = $searchwithin;

        $customdata['withincourseid'] = $coursecontext->instanceid;

    }

}

// Get available ordering options from search engine.

$customdata['orderoptions'] = $search->get_engine()->get_supported_orders($context);

if ($cat instanceof \core_search\area_category) {

    $customdata['cat'] = $cat->get_name();

}

$mform = new \core_search\output\form\search(null, $customdata);

$data = $mform->get_data();

if (!$data && $q) {

    // Data can also come from the URL.

    $data = new stdClass();

    $data->q = $q;

    $data->title = $title;

    $areaids = optional_param('areaids', '', PARAM_RAW);

    if (!empty($areaids)) {

        $areaids = explode(',', $areaids);

        $data->areaids = clean_param_array($areaids, PARAM_ALPHANUMEXT);

    }

    $courseids = optional_param('courseids', '', PARAM_RAW);

    if (!empty($courseids)) {

        $courseids = explode(',', $courseids);

        $data->courseids = clean_param_array($courseids, PARAM_INT);

    }

    $data->timestart = optional_param('timestart', 0, PARAM_INT);

    $data->timeend = optional_param('timeend', 0, PARAM_INT);

    $data->context = $contextid;

    $data->mycoursesonly = $mycoursesonly;

    $mform->set_data($data);

}

// Convert the 'search within' option, if used, to course or context restrictions.

if ($data && !empty($data->searchwithin)) {

    switch ($data->searchwithin) {

        case 'course':

            $data->courseids = [$coursecontext->instanceid];

            break;

        case 'context':

            $data->courseids = [$coursecontext->instanceid];

            $data->contextids = [$context->id];

            break;

    }

}

// Inform search engine about source context.

if (!empty($context) && $data) {

    $data->context = $context;

}

if ($data && $cat instanceof \core_search\area_category) {

    $data->cat = $cat->get_name();

}

// Set the page URL.

$urlparams = array('page' => $page);

if ($data) {

    $urlparams['q'] = $data->q;

    $urlparams['title'] = $data->title;

    if (!empty($data->areaids)) {

        $urlparams['areaids'] = implode(',', $data->areaids);

    }

    if (!empty($data->courseids)) {

        $urlparams['courseids'] = implode(',', $data->courseids);

    }

    $urlparams['timestart'] = $data->timestart;

    $urlparams['timeend'] = $data->timeend;

    $urlparams['mycoursesonly'] = isset($data->mycoursesonly) ? $data->mycoursesonly : 0;

}

if ($cat instanceof \core_search\area_category) {

    $urlparams['cat'] = $cat->get_name();

}

$url = new moodle_url('/search/index.php', $urlparams);

$PAGE->set_url($url);

// We are ready to render.

echo $OUTPUT->header();

// Unlock the session only after outputting the header as this modifies the session cachestore.

\core\session\manager::write_close();

// Get the results.

if ($data) {

    $results = $search->paged_search($data, $page);

}

// Show search information if configured by system administrator.

if ($CFG->searchbannerenable && $CFG->searchbanner) {

    echo $OUTPUT->notification(format_text($CFG->searchbanner, FORMAT_HTML), 'notifywarning');

}

if ($errorstr = $search->get_engine()->get_query_error()) {

    echo $OUTPUT->notification(get_string('queryerror', 'search', $errorstr), 'notifyproblem');

} else if (empty($results->totalcount) && !empty($data)) {

    echo $OUTPUT->notification(get_string('noresults', 'search'), 'notifymessage');

}

$mform->display();

if (!empty($results)) {

    $topresults = $search->search_top($data);

    if (!empty($topresults)) {

        echo $searchrenderer->render_top_results($topresults);

    }

    echo $searchrenderer->render_results($results->results, $results->actualpage, $results->totalcount, $url, $cat);

    \core_search\manager::trigger_search_results_viewed([

        'q' => $data->q,

        'page' => $page,

        'title' => $data->title,

        'areaids' => !empty($data->areaids) ? $data->areaids : array(),

        'courseids' => !empty($data->courseids) ? $data->courseids : array(),

        'timestart' => isset($data->timestart) ? $data->timestart : 0,

        'timeend' => isset($data->timeend) ? $data->timeend : 0

    ]);

}

echo $OUTPUT->footer();