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/>.

/**

 * This page shows the contents of a recyclebin for a given course.

 *

 * @package    tool_recyclebin

 * @copyright  2015 University of Kent

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

 */

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

require_once($CFG->libdir . '/tablelib.php');

$contextid = required_param('contextid', PARAM_INT);

$action = optional_param('action', null, PARAM_ALPHA);

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

$PAGE->set_context($context);

// We could be a course or a category.

switch ($context->contextlevel) {

    case CONTEXT_COURSE:

        require_login($context->instanceid);

        $recyclebin = new \tool_recyclebin\course_bin($context->instanceid);

        if (!$recyclebin->can_view()) {

            throw new required_capability_exception($context, 'tool/recyclebin:viewitems', 'nopermissions', '');

        }

        $PAGE->set_pagelayout('incourse');

        // Set the $PAGE heading - this is also the same as the h2 heading.

        $heading = format_string($COURSE->fullname, true, array('context' => $context)) . ': ' .

            get_string('pluginname', 'tool_recyclebin');

        $PAGE->set_heading($heading);

        // Get the expiry to use later.

        $expiry = get_config('tool_recyclebin', 'coursebinexpiry');

    break;

    case CONTEXT_COURSECAT:

        require_login(null, false);

        $recyclebin = new \tool_recyclebin\category_bin($context->instanceid);

        if (!$recyclebin->can_view()) {

            throw new required_capability_exception($context, 'tool/recyclebin:viewitems', 'nopermissions', '');

        }

        $PAGE->set_pagelayout('admin');

        // Set the $PAGE heading.

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

        // The h2 heading on the page is going to be different than the $PAGE heading.

        $heading = $context->get_context_name() . ': ' . get_string('pluginname', 'tool_recyclebin');

        // Get the expiry to use later.

        $expiry = get_config('tool_recyclebin', 'categorybinexpiry');

    break;

    default:

        throw new \moodle_exception('invalidcontext', 'tool_recyclebin');

    break;

}

if (!$recyclebin::is_enabled()) {

    throw new \moodle_exception('notenabled', 'tool_recyclebin');

}

$PAGE->set_url('/admin/tool/recyclebin/index.php', array(

    'contextid' => $contextid

));

$PAGE->set_title(get_string('pluginname', 'tool_recyclebin'));

// If we are doing anything, we need a sesskey!

if (!empty($action)) {

    raise_memory_limit(MEMORY_EXTRA);

    require_sesskey();

    $item = null;

    if ($action == 'restore' || $action == 'delete') {

        $itemid = required_param('itemid', PARAM_INT);

        $item = $recyclebin->get_item($itemid);

    }

    switch ($action) {

        // Restore it.

        case 'restore':

            if ($recyclebin->can_restore()) {

                $recyclebin->restore_item($item);

                redirect($PAGE->url, get_string('alertrestored', 'tool_recyclebin', $item), 2);

            } else {

                throw new \moodle_exception('nopermissions', 'error');

            }

        break;

        // Delete it.

        case 'delete':

            if ($recyclebin->can_delete()) {

                $recyclebin->delete_item($item);

                redirect($PAGE->url, get_string('alertdeleted', 'tool_recyclebin', $item), 2);

            } else {

                throw new \moodle_exception('nopermissions', 'error');

            }

        break;

        // Empty it.

        case 'empty':

            $recyclebin->delete_all_items();

            redirect($PAGE->url, get_string('alertemptied', 'tool_recyclebin'), 2);

        break;

    }

}

// Add a "Go Back" button.

$goback = html_writer::start_tag('div', array('class' => 'backlink'));

$goback .= html_writer::link($context->get_url(), get_string('backto', '', $context->get_context_name()));

$goback .= html_writer::end_tag('div');

// Output header.

echo $OUTPUT->header();

echo $OUTPUT->heading($heading);

// Grab our items, check there is actually something to display.

$items = $recyclebin->get_items();

// Nothing to show? Bail out early.

if (empty($items)) {

    echo $OUTPUT->box(get_string('noitemsinbin', 'tool_recyclebin'));

    echo $goback;

    echo $OUTPUT->footer();

    die;

}

// Start with a description.

if ($expiry > 0) {

    $expirydisplay = format_time($expiry);

    echo '<div class=\'alert\'>' . get_string('deleteexpirywarning', 'tool_recyclebin', $expirydisplay) . '</div>';

}

// Define columns and headers.

$firstcolstr = $context->contextlevel == CONTEXT_COURSE ? 'activity' : 'course';

$columns = array($firstcolstr, 'date', 'restore', 'delete');

$headers = array(

    get_string($firstcolstr),

    get_string('datedeleted', 'tool_recyclebin'),

    get_string('restore'),

    get_string('delete')

);

// Define a table.

$table = new flexible_table('recyclebin');

$table->define_columns($columns);

$table->column_style('restore', 'text-align', 'center');

$table->column_style('delete', 'text-align', 'center');

$table->define_headers($headers);

$table->define_baseurl($PAGE->url);

$table->set_attribute('id', 'recycle-bin-table');

$table->setup();

// Cache a list of modules.

$modules = null;

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

    $modules = $DB->get_records('modules');

}

// Add all the items to the table.

$showempty = false;

$canrestore = $recyclebin->can_restore();

foreach ($items as $item) {

    $row = array();

    // Build item name.

    $name = $item->name;

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

        if (isset($modules[$item->module])) {

            $mod = $modules[$item->module];

            $modname = get_string('modulename', $mod->name);

            $name = $OUTPUT->image_icon('monologo', $modname, $mod->name) . $name;

        }

    }

    $row[] = $name;

    $row[] = userdate($item->timecreated);

    // Build restore link.

    if ($canrestore && ($context->contextlevel == CONTEXT_COURSECAT || isset($modules[$item->module]))) {

        $restoreurl = new moodle_url($PAGE->url, array(

            'contextid' => $contextid,

            'itemid' => $item->id,

            'action' => 'restore',

            'sesskey' => sesskey()

        ));

        $row[] = $OUTPUT->action_icon($restoreurl, new pix_icon('t/restore', get_string('restore'), '', array(

            'class' => 'iconsmall'

        )));

    } else {

        // Show padlock.

        $row[] = $OUTPUT->pix_icon('t/locked', get_string('locked', 'admin'), '', array('class' => 'iconsmall'));

    }

    // Build delete link.

    if ($recyclebin->can_delete()) {

        $showempty = true;

        $delete = new moodle_url($PAGE->url, array(

            'contextid' => $contextid,

            'itemid' => $item->id,

            'action' => 'delete',

            'sesskey' => sesskey()

        ));

        $deleteaction = new confirm_action(get_string('deleteconfirm', 'tool_recyclebin'));

        $delete = $OUTPUT->action_icon($delete, new pix_icon('t/delete', get_string('delete')), $deleteaction);

        $row[] = $delete;

    } else {

        // Show padlock.

        $row[] = $OUTPUT->pix_icon('t/locked', get_string('locked', 'admin'), '', array('class' => 'iconsmall'));

    }

    $table->add_data($row);

}

// Display the table now.

$table->finish_output();

// Empty recyclebin link.

if ($showempty) {

    $emptylink = new moodle_url($PAGE->url, array(

        'contextid' => $contextid,

        'action' => 'empty',

        'sesskey' => sesskey()

    ));

    $emptyaction = new confirm_action(get_string('deleteallconfirm', 'tool_recyclebin'));

    echo $OUTPUT->action_link($emptylink, get_string('deleteall', 'tool_recyclebin'), $emptyaction);

}

echo $goback;

// Confirmation JS.

$PAGE->requires->strings_for_js(array('deleteallconfirm', 'deleteconfirm'), 'tool_recyclebin');

// Output footer.

echo $OUTPUT->footer();