source: moodle/trunk/fuentes/admin/cli/fix_course_sequence.php @ 136

Last change on this file since 136 was 136, checked in by mabarracus, 4 years ago

Ported code to xenial

File size: 4.3 KB
Line 
1<?php
2// This file is part of Moodle - http://moodle.org/
3//
4// Moodle is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8//
9// Moodle is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13//
14// You should have received a copy of the GNU General Public License
15// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
16
17/**
18 * This script fixed incorrectly deleted users.
19 *
20 * @package    core
21 * @subpackage cli
22 * @copyright  2013 Marina Glancy
23 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
24 */
25
26define('CLI_SCRIPT', true);
27
28require(__DIR__.'/../../config.php');
29require_once($CFG->libdir.'/clilib.php');
30
31// Get cli options.
32list($options, $unrecognized) = cli_get_params(
33    array(
34        'courses'           => false,
35        'fix'               => false,
36        'help'              => false
37    ),
38    array(
39        'h' => 'help',
40        'c' => 'courses',
41        'f' => 'fix'
42    )
43);
44
45if ($options['help'] || empty($options['courses'])) {
46    $help =
47"Checks and fixes that course modules and sections reference each other correctly.
48
49Compares DB fields course_sections.sequence and course_modules.section
50checking that:
51- course_sections.sequence contains each module id not more than once in the course
52- for each moduleid from course_sections.sequence the field course_modules.section
53  refers to the same section id (this means course_sections.sequence is more
54  important if they are different)
55- each module in the course is present in one of course_sections.sequence
56- section sequences do not contain non-existing course modules
57
58If there are any mismatches, the message is displayed. If --fix is specified,
59the records in DB are corrected.
60
61This script may run for a long time on big systems if called for all courses.
62
63Avoid executing the script when another user may simultaneously edit any of the
64courses being checked (recommended to run in mainenance mode).
65
66Options:
67-c, --courses         List courses that need to be checked (comma-separated
68                      values or * for all). Required
69-f, --fix             Fix the mismatches in DB. If not specified check only and
70                      report problems to STDERR
71-h, --help            Print out this help
72
73Example:
74\$sudo -u www-data /usr/bin/php admin/cli/fix_course_sequence.php --courses=*
75\$sudo -u www-data /usr/bin/php admin/cli/fix_course_sequence.php --courses=2,3,4 --fix
76";
77
78    echo $help;
79    die;
80}
81
82$courseslist = preg_split('/\s*,\s*/', $options['courses'], -1, PREG_SPLIT_NO_EMPTY);
83if (in_array('*', $courseslist)) {
84    $where = '';
85    $params = array();
86} else {
87    list($sql, $params) = $DB->get_in_or_equal($courseslist, SQL_PARAMS_NAMED, 'id');
88    $where = 'WHERE id '. $sql;
89}
90$coursescount = $DB->get_field_sql('SELECT count(id) FROM {course} '. $where, $params);
91
92if (!$coursescount) {
93    cli_error('No courses found');
94}
95echo "Checking $coursescount courses...\n\n";
96
97require_once($CFG->dirroot. '/course/lib.php');
98
99$problems = array();
100$courses = $DB->get_fieldset_sql('SELECT id FROM {course} '. $where, $params);
101foreach ($courses as $courseid) {
102    $errors = course_integrity_check($courseid, null, null, true, empty($options['fix']));
103    if ($errors) {
104        if (!empty($options['fix'])) {
105            // Reset the course cache to make sure cache is recalculated next time the course is viewed.
106            rebuild_course_cache($courseid, true);
107        }
108        foreach ($errors as $error) {
109            cli_problem($error);
110        }
111        $problems[] = $courseid;
112    } else {
113        echo "Course [$courseid] is OK\n";
114    }
115}
116if (!count($problems)) {
117    echo "\n...All courses are OK\n";
118} else {
119    if (!empty($options['fix'])) {
120        echo "\n...Found and fixed ".count($problems)." courses with problems". "\n";
121    } else {
122        echo "\n...Found ".count($problems)." courses with problems. To fix run:\n";
123        echo "\$sudo -u www-data /usr/bin/php admin/cli/fix_course_sequence.php --courses=".join(',', $problems)." --fix". "\n";
124    }
125}
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