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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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* Sets up the tabs used by the lesson pages for teachers.
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*
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* This file was adapted from the mod/quiz/tabs.php
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*
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 * @package mod_lesson
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 * @copyright  1999 onwards Martin Dougiamas  {@link http://moodle.com}
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 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or late
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*/
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defined('MOODLE_INTERNAL') || die();
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/// This file to be included so we can assume config.php has already been included.
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global $DB;
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if (empty($lesson)) {
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    throw new \moodle_exception('cannotcallscript');
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}
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if (!isset($currenttab)) {
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    $currenttab = '';
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}
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if (!isset($cm)) {
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    $cm = get_coursemodule_from_instance('lesson', $lesson->id);
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    $context = context_module::instance($cm->id);
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}
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if (!isset($course)) {
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    $course = $DB->get_record('course', array('id' => $lesson->course));
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}
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$tabs = $row = $inactive = $activated = array();
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/// user attempt count for reports link hover (completed attempts - much faster)
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$attemptscount = $DB->count_records('lesson_grades', array('lessonid'=>$lesson->id));
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$row[] = new tabobject('view', "$CFG->wwwroot/mod/lesson/view.php?id=$cm->id", get_string('preview', 'lesson'), get_string('previewlesson', 'lesson', format_string($lesson->name)));
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$row[] = new tabobject('edit', "$CFG->wwwroot/mod/lesson/edit.php?id=$cm->id", get_string('edit', 'lesson'), get_string('edita', 'moodle', format_string($lesson->name)));
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if (has_capability('mod/lesson:viewreports', $context)) {
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    $row[] = new tabobject('reports', "$CFG->wwwroot/mod/lesson/report.php?id=$cm->id", get_string('reports', 'lesson'),
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            get_string('viewreports2', 'lesson', $attemptscount));
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}
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if (has_capability('mod/lesson:grade', $context)) {
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    $row[] = new tabobject('essay', "$CFG->wwwroot/mod/lesson/essay.php?id=$cm->id", get_string('manualgrading', 'lesson'));
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}
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$tabs[] = $row;
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switch ($currenttab) {
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    case 'reportoverview':
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    case 'reportdetail':
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    /// sub tabs for reports (overview and detail)
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        $inactive[] = 'reports';
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        $activated[] = 'reports';
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        $row    = array();
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        $row[]  = new tabobject('reportoverview', "$CFG->wwwroot/mod/lesson/report.php?id=$cm->id&amp;action=reportoverview", get_string('overview', 'lesson'));
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        $row[]  = new tabobject('reportdetail', "$CFG->wwwroot/mod/lesson/report.php?id=$cm->id&amp;action=reportdetail", get_string('detailedstats', 'lesson'));
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        $tabs[] = $row;
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        break;
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    case 'collapsed':
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    case 'full':
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    case 'single':
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    /// sub tabs for edit view (collapsed and expanded aka full)
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        $inactive[] = 'edit';
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        $activated[] = 'edit';
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        $row    = array();
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        $row[]  = new tabobject('collapsed', "$CFG->wwwroot/mod/lesson/edit.php?id=$cm->id&amp;mode=collapsed", get_string('collapsed', 'lesson'));
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        $row[]  = new tabobject('full', "$CFG->wwwroot/mod/lesson/edit.php?id=$cm->id&amp;mode=full", get_string('full', 'lesson'));
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        $tabs[] = $row;
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        break;
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}
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print_tabs($tabs, $currenttab, $inactive, $activated);