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/>.

/**

 * Block for displayed logged in user's course completion status.

 * Displays overall, and individual criteria status for logged in user.

 *

 * @package    block_completionstatus

 * @copyright  2009-2012 Catalyst IT Ltd

 * @author     Aaron Barnes <aaronb@catalyst.net.nz>

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

 */

class block_completionstatus extends block_base {

    public function init() {

        global $CFG;

        require_once("{$CFG->libdir}/completionlib.php");

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

    }

    public function applicable_formats() {

        return array('course' => true);

    }

    public function get_content() {

        global $USER;

        $rows = array();

        $srows = array();

        $prows = array();

        // If content is cached.

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

            return $this->content;

        }

        $course = $this->page->course;

        $context = context_course::instance($course->id);

        // Create empty content.

        $this->content = new stdClass();

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

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

        // Can edit settings?

        $can_edit = has_capability('moodle/course:update', $context);

        // Get course completion data.

        $info = new completion_info($course);

        // Don't display if completion isn't enabled!

        if (!completion_info::is_enabled_for_site()) {

            if ($can_edit) {

                $this->content->text .= get_string('completionnotenabledforsite', 'completion');

            }

            return $this->content;

        } else if (!$info->is_enabled()) {

            if ($can_edit) {

                $this->content->text .= get_string('completionnotenabledforcourse', 'completion');

            }

            return $this->content;

        }

        // Load criteria to display.

        $completions = $info->get_completions($USER->id);

        // Check if this course has any criteria.

        if (empty($completions)) {

            if ($can_edit) {

                $this->content->text .= get_string('nocriteriaset', 'completion');

            }

            return $this->content;

        }

        // Check this user is enroled.

        if ($info->is_tracked_user($USER->id)) {

            // Generate markup for criteria statuses.

            $data = '';

            // For aggregating activity completion.

            $activities = array();

            $activities_complete = 0;

            // For aggregating course prerequisites.

            $prerequisites = array();

            $prerequisites_complete = 0;

            // Flag to set if current completion data is inconsistent with what is stored in the database.

            $pending_update = false;

            // Loop through course criteria.

            foreach ($completions as $completion) {

                $criteria = $completion->get_criteria();

                $complete = $completion->is_complete();

                if (!$pending_update && $criteria->is_pending($completion)) {

                    $pending_update = true;

                }

                // Activities are a special case, so cache them and leave them till last.

                if ($criteria->criteriatype == COMPLETION_CRITERIA_TYPE_ACTIVITY) {

                    $activities[$criteria->moduleinstance] = $complete;

                    if ($complete) {

                        $activities_complete++;

                    }

                    continue;

                }

                // Prerequisites are also a special case, so cache them and leave them till last.

                if ($criteria->criteriatype == COMPLETION_CRITERIA_TYPE_COURSE) {

                    $prerequisites[$criteria->courseinstance] = $complete;

                    if ($complete) {

                        $prerequisites_complete++;

                    }

                    continue;

                }

                $row = new html_table_row();

                $row->cells[0] = new html_table_cell($criteria->get_title());

                $row->cells[1] = new html_table_cell($completion->get_status());

                $row->cells[1]->style = 'text-align: right;';

                $srows[] = $row;

            }

            // Aggregate activities.

            if (!empty($activities)) {

                $a = new stdClass();

                $a->first = $activities_complete;

                $a->second = count($activities);

                $row = new html_table_row();

                $row->cells[0] = new html_table_cell(get_string('activitiescompleted', 'completion'));

                $row->cells[1] = new html_table_cell(get_string('firstofsecond', 'block_completionstatus', $a));

                $row->cells[1]->style = 'text-align: right;';

                $srows[] = $row;

            }

            // Aggregate prerequisites.

            if (!empty($prerequisites)) {

                $a = new stdClass();

                $a->first = $prerequisites_complete;

                $a->second = count($prerequisites);

                $row = new html_table_row();

                $row->cells[0] = new html_table_cell(get_string('dependenciescompleted', 'completion'));

                $row->cells[1] = new html_table_cell(get_string('firstofsecond', 'block_completionstatus', $a));

                $row->cells[1]->style = 'text-align: right;';

                $prows[] = $row;

                $srows = array_merge($prows, $srows);

            }

            // Display completion status.

            $table = new html_table();

            $table->width = '100%';

            $table->attributes = array('style'=>'font-size: 90%;', 'class'=>'');

            $row = new html_table_row();

            $content = html_writer::tag('b', get_string('status').': ');

            // Is course complete?

            $coursecomplete = $info->is_course_complete($USER->id);

            // Load course completion.

            $params = array(

                'userid' => $USER->id,

                'course' => $course->id

            );

            $ccompletion = new completion_completion($params);

            // Has this user completed any criteria?

            $criteriacomplete = $info->count_course_user_data($USER->id);

            if ($pending_update) {

                $content .= html_writer::tag('i', get_string('pending', 'completion'));

            } else if ($coursecomplete) {

                $content .= get_string('complete');

            } else if (!$criteriacomplete && !$ccompletion->timestarted) {

                $content .= html_writer::tag('i', get_string('notyetstarted', 'completion'));

            } else {

                $content .= html_writer::tag('i', get_string('inprogress', 'completion'));

            }

            $row->cells[0] = new html_table_cell($content);

            $row->cells[0]->colspan = '2';

            $rows[] = $row;

            $row = new html_table_row();

            $content = "";

            // Get overall aggregation method.

            $overall = $info->get_aggregation_method();

            if ($overall == COMPLETION_AGGREGATION_ALL) {

                $content .= get_string('criteriarequiredall', 'completion');

            } else {

                $content .= get_string('criteriarequiredany', 'completion');

            }

            $content .= ':';

            $row->cells[0] = new html_table_cell($content);

            $row->cells[0]->colspan = '2';

            $rows[] = $row;

            $row = new html_table_row();

            $row->cells[0] = new html_table_cell(html_writer::tag('b', get_string('requiredcriteria', 'completion')));

            $row->cells[1] = new html_table_cell(html_writer::tag('b', get_string('status')));

            $row->cells[1]->style = 'text-align: right;';

            $rows[] = $row;

            // Array merge $rows and $data here.

            $rows = array_merge($rows, $srows);

            $table->data = $rows;

            $this->content->text .= html_writer::table($table);

            // Display link to detailed view.

            $details = new moodle_url('/blocks/completionstatus/details.php', array('course' => $course->id));

            $this->content->footer .= html_writer::link($details, get_string('moredetails', 'completion'));

        } else {

            // If user is not enrolled, show error.

            $this->content->text = get_string('nottracked', 'completion');

        }

        if (has_capability('report/completion:view', $context)) {

            $report = new moodle_url('/report/completion/index.php', array('course' => $course->id));

            if (empty($this->content->footer)) {

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

            }

            $this->content->footer .= html_writer::empty_tag('br');

            $this->content->footer .= html_writer::link($report, get_string('viewcoursereport', 'completion'));

        }

        return $this->content;

    }

    /**

     * This block shouldn't be added to a page if the completion tracking advanced feature is disabled.

     *

     * @param moodle_page $page

     * @return bool

     */

    public function can_block_be_added(moodle_page $page): bool {

        global $CFG;

        return $CFG->enablecompletion;

    }

}