MDL-37082 core_course: create new course_delete_module function that handles the...
[moodle.git] / mod / assign / upgradelib.php
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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 file contains the upgrade code to upgrade from mod_assignment to mod_assign
19 *
20 * @package mod_assign
21 * @copyright 2012 NetSpot {@link http://www.netspot.com.au}
22 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
23 */
24
25defined('MOODLE_INTERNAL') || die();
26
bbd0e548 27require_once($CFG->dirroot.'/mod/assign/locallib.php');
bbd0e548 28require_once($CFG->libdir.'/accesslib.php');
a347aee3 29require_once($CFG->dirroot.'/course/lib.php');
bbd0e548 30
e5403f8c 31/*
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32 * The maximum amount of time to spend upgrading a single assignment.
33 * This is intentionally generous (5 mins) as the effect of a timeout
34 * for a legitimate upgrade would be quite harsh (roll back code will not run)
35 */
36define('ASSIGN_MAX_UPGRADE_TIME_SECS', 300);
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37
38/**
39 * Class to manage upgrades from mod_assignment to mod_assign
40 *
41 * @package mod_assign
42 * @copyright 2012 NetSpot {@link http://www.netspot.com.au}
43 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
44 */
45class assign_upgrade_manager {
46
47 /**
48 * This function converts all of the base settings for an instance of
49 * the old assignment to the new format. Then it calls each of the plugins
50 * to see if they can help upgrade this assignment.
51 * @param int $oldassignmentid (don't rely on the old assignment type even being installed)
52 * @param string $log This string gets appended to during the conversion process
53 * @return bool true or false
54 */
55 public function upgrade_assignment($oldassignmentid, & $log) {
bbd0e548 56 global $DB, $CFG, $USER;
e5403f8c 57 // Steps to upgrade an assignment.
bbd0e548 58
e5403f8c 59 // Is the user the admin? admin check goes here.
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60 if (!is_siteadmin($USER->id)) {
61 return false;
62 }
63
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64 @set_time_limit(ASSIGN_MAX_UPGRADE_TIME_SECS);
65
e5403f8c 66 // Get the module details.
bbd0e548 67 $oldmodule = $DB->get_record('modules', array('name'=>'assignment'), '*', MUST_EXIST);
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68 $params = array('module'=>$oldmodule->id, 'instance'=>$oldassignmentid);
69 $oldcoursemodule = $DB->get_record('course_modules',
70 $params,
71 '*',
72 MUST_EXIST);
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73 $oldcontext = context_module::instance($oldcoursemodule->id);
74
e5403f8c 75 // First insert an assign instance to get the id.
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76 $oldassignment = $DB->get_record('assignment', array('id'=>$oldassignmentid), '*', MUST_EXIST);
77
78 $oldversion = get_config('assignment_' . $oldassignment->assignmenttype, 'version');
79
80 $data = new stdClass();
81 $data->course = $oldassignment->course;
82 $data->name = $oldassignment->name;
83 $data->intro = $oldassignment->intro;
84 $data->introformat = $oldassignment->introformat;
85 $data->alwaysshowdescription = 1;
86 $data->sendnotifications = $oldassignment->emailteachers;
56ff1300 87 $data->sendlatenotifications = $oldassignment->emailteachers;
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88 $data->duedate = $oldassignment->timedue;
89 $data->allowsubmissionsfromdate = $oldassignment->timeavailable;
90 $data->grade = $oldassignment->grade;
91 $data->submissiondrafts = $oldassignment->resubmit;
94f26900 92 $data->requiresubmissionstatement = 0;
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93 $data->cutoffdate = 0;
94 // New way to specify no late submissions.
95 if ($oldassignment->preventlate) {
96 $data->cutoffdate = $data->duedate;
97 }
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98 $data->teamsubmission = 0;
99 $data->requireallteammemberssubmit = 0;
100 $data->teamsubmissiongroupingid = 0;
101 $data->blindmarking = 0;
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102
103 $newassignment = new assign(null, null, null);
104
105 if (!$newassignment->add_instance($data, false)) {
106 $log = get_string('couldnotcreatenewassignmentinstance', 'mod_assign');
107 return false;
108 }
109
e5403f8c 110 // Now create a new coursemodule from the old one.
bbd0e548 111 $newmodule = $DB->get_record('modules', array('name'=>'assign'), '*', MUST_EXIST);
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112 $newcoursemodule = $this->duplicate_course_module($oldcoursemodule,
113 $newmodule->id,
114 $newassignment->get_instance()->id);
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115 if (!$newcoursemodule) {
116 $log = get_string('couldnotcreatenewcoursemodule', 'mod_assign');
117 return false;
118 }
119
e5403f8c 120 // Convert the base database tables (assignment, submission, grade).
bbd0e548 121
e5403f8c 122 // These are used to store information in case a rollback is required.
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123 $gradingarea = null;
124 $gradingdefinitions = null;
125 $gradeidmap = array();
126 $completiondone = false;
c45261df 127 $gradesdone = false;
bbd0e548 128
e5403f8c 129 // From this point we want to rollback on failure.
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130 $rollback = false;
131 try {
132 $newassignment->set_context(context_module::instance($newcoursemodule->id));
133
e5403f8c 134 // The course module has now been created - time to update the core tables.
bbd0e548 135
e5403f8c 136 // Copy intro files.
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137 $newassignment->copy_area_files_for_upgrade($oldcontext->id, 'mod_assignment', 'intro', 0,
138 $newassignment->get_context()->id, 'mod_assign', 'intro', 0);
139
e5403f8c 140 // Get the plugins to do their bit.
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141 foreach ($newassignment->get_submission_plugins() as $plugin) {
142 if ($plugin->can_upgrade($oldassignment->assignmenttype, $oldversion)) {
143 $plugin->enable();
144 if (!$plugin->upgrade_settings($oldcontext, $oldassignment, $log)) {
145 $rollback = true;
146 }
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147 } else {
148 $plugin->disable();
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149 }
150 }
151 foreach ($newassignment->get_feedback_plugins() as $plugin) {
152 if ($plugin->can_upgrade($oldassignment->assignmenttype, $oldversion)) {
153 $plugin->enable();
154 if (!$plugin->upgrade_settings($oldcontext, $oldassignment, $log)) {
155 $rollback = true;
156 }
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157 } else {
158 $plugin->disable();
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159 }
160 }
161
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162 // See if there is advanced grading upgrades required.
163 $gradingarea = $DB->get_record('grading_areas',
164 array('contextid'=>$oldcontext->id, 'areaname'=>'submission'),
165 '*',
166 IGNORE_MISSING);
bbd0e548 167 if ($gradingarea) {
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168 $params = array('id'=>$gradingarea->id,
169 'contextid'=>$newassignment->get_context()->id,
170 'component'=>'mod_assign',
171 'areaname'=>'submissions');
172 $DB->update_record('grading_areas', $params);
173 $gradingdefinitions = $DB->get_records('grading_definitions',
174 array('areaid'=>$gradingarea->id));
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175 }
176
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177 // Upgrade completion data.
178 $DB->set_field('course_modules_completion',
179 'coursemoduleid',
180 $newcoursemodule->id,
181 array('coursemoduleid'=>$oldcoursemodule->id));
182 $allcriteria = $DB->get_records('course_completion_criteria',
183 array('moduleinstance'=>$oldcoursemodule->id));
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184 foreach ($allcriteria as $criteria) {
185 $criteria->module = 'assign';
186 $criteria->moduleinstance = $newcoursemodule->id;
187 $DB->update_record('course_completion_criteria', $criteria);
188 }
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189 $completiondone = true;
190
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191 // Migrate log entries so we don't lose them.
192 $logparams = array('cmid' => $oldcoursemodule->id, 'course' => $oldcoursemodule->course);
193 $DB->set_field('log', 'module', 'assign', $logparams);
194 $DB->set_field('log', 'cmid', $newcoursemodule->id, $logparams);
195
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196 // Copy all the submission data (and get plugins to do their bit).
197 $oldsubmissions = $DB->get_records('assignment_submissions',
198 array('assignment'=>$oldassignmentid));
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199
200 foreach ($oldsubmissions as $oldsubmission) {
201 $submission = new stdClass();
202 $submission->assignment = $newassignment->get_instance()->id;
203 $submission->userid = $oldsubmission->userid;
204 $submission->timecreated = $oldsubmission->timecreated;
205 $submission->timemodified = $oldsubmission->timemodified;
206 $submission->status = ASSIGN_SUBMISSION_STATUS_SUBMITTED;
207 $submission->id = $DB->insert_record('assign_submission', $submission);
208 if (!$submission->id) {
209 $log .= get_string('couldnotinsertsubmission', 'mod_assign', $submission->userid);
210 $rollback = true;
211 }
212 foreach ($newassignment->get_submission_plugins() as $plugin) {
213 if ($plugin->can_upgrade($oldassignment->assignmenttype, $oldversion)) {
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214 if (!$plugin->upgrade($oldcontext,
215 $oldassignment,
216 $oldsubmission,
217 $submission,
218 $log)) {
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219 $rollback = true;
220 }
221 }
222 }
223 if ($oldsubmission->timemarked) {
e5403f8c 224 // Submission has been graded - create a grade record.
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225 $grade = new stdClass();
226 $grade->assignment = $newassignment->get_instance()->id;
227 $grade->userid = $oldsubmission->userid;
228 $grade->grader = $oldsubmission->teacher;
229 $grade->timemodified = $oldsubmission->timemarked;
230 $grade->timecreated = $oldsubmission->timecreated;
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231 $grade->grade = $oldsubmission->grade;
232 $grade->mailed = $oldsubmission->mailed;
233 $grade->id = $DB->insert_record('assign_grades', $grade);
234 if (!$grade->id) {
235 $log .= get_string('couldnotinsertgrade', 'mod_assign', $grade->userid);
236 $rollback = true;
237 }
238
e5403f8c 239 // Copy any grading instances.
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240 if ($gradingarea) {
241
242 $gradeidmap[$grade->id] = $oldsubmission->id;
243
244 foreach ($gradingdefinitions as $definition) {
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245 $params = array('definitionid'=>$definition->id,
246 'itemid'=>$oldsubmission->id);
247 $DB->set_field('grading_instances', 'itemid', $grade->id, $params);
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248 }
249
250 }
251 foreach ($newassignment->get_feedback_plugins() as $plugin) {
252 if ($plugin->can_upgrade($oldassignment->assignmenttype, $oldversion)) {
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253 if (!$plugin->upgrade($oldcontext,
254 $oldassignment,
255 $oldsubmission,
256 $grade,
257 $log)) {
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258 $rollback = true;
259 }
260 }
261 }
262 }
263 }
264
265 $newassignment->update_calendar($newcoursemodule->id);
bbd0e548 266
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267 // Reassociate grade_items from the old assignment instance to the new assign instance.
268 // This includes outcome linked grade_items.
269 $params = array('assign', $newassignment->get_instance()->id, 'assignment', $oldassignment->id);
270 $sql = 'UPDATE {grade_items} SET itemmodule = ?, iteminstance = ? WHERE itemmodule = ? AND iteminstance = ?';
271 $DB->execute($sql, $params);
1f417de8 272
c45261df 273 $gradesdone = true;
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274
275 } catch (Exception $exception) {
276 $rollback = true;
5b121144 277 $log .= get_string('conversionexception', 'mod_assign', $exception->error);
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278 }
279
280 if ($rollback) {
e5403f8c 281 // Roll back the grades changes.
c45261df 282 if ($gradesdone) {
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283 // Reassociate grade_items from the new assign instance to the old assignment instance.
284 $params = array('assignment', $oldassignment->id, 'assign', $newassignment->get_instance()->id);
285 $sql = 'UPDATE {grade_items} SET itemmodule = ?, iteminstance = ? WHERE itemmodule = ? AND iteminstance = ?';
286 $DB->execute($sql, $params);
c45261df 287 }
e5403f8c 288 // Roll back the completion changes.
bbd0e548 289 if ($completiondone) {
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290 $DB->set_field('course_modules_completion',
291 'coursemoduleid',
292 $oldcoursemodule->id,
293 array('coursemoduleid'=>$newcoursemodule->id));
294
295 $allcriteria = $DB->get_records('course_completion_criteria',
296 array('moduleinstance'=>$newcoursemodule->id));
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297 foreach ($allcriteria as $criteria) {
298 $criteria->module = 'assignment';
299 $criteria->moduleinstance = $oldcoursemodule->id;
300 $DB->update_record('course_completion_criteria', $criteria);
301 }
bbd0e548 302 }
e5403f8c 303 // Roll back the log changes.
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304 $logparams = array('cmid' => $newcoursemodule->id, 'course' => $newcoursemodule->course);
305 $DB->set_field('log', 'module', 'assignment', $logparams);
306 $DB->set_field('log', 'cmid', $oldcoursemodule->id, $logparams);
e5403f8c 307 // Roll back the advanced grading update.
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308 if ($gradingarea) {
309 foreach ($gradeidmap as $newgradeid => $oldsubmissionid) {
310 foreach ($gradingdefinitions as $definition) {
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311 $DB->set_field('grading_instances',
312 'itemid',
313 $oldsubmissionid,
314 array('definitionid'=>$definition->id, 'itemid'=>$newgradeid));
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315 }
316 }
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317 $params = array('id'=>$gradingarea->id,
318 'contextid'=>$oldcontext->id,
319 'component'=>'mod_assignment',
320 'areaname'=>'submission');
321 $DB->update_record('grading_areas', $params);
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322 }
323 $newassignment->delete_instance();
324
325 return false;
326 }
e5403f8c 327 // Delete the old assignment (use object delete).
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328 $cm = get_coursemodule_from_id('', $oldcoursemodule->id, $oldcoursemodule->course);
329 if ($cm) {
a347aee3 330 course_delete_module($cm->id);
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331 }
332 rebuild_course_cache($oldcoursemodule->course);
333 return true;
334 }
335
336
337 /**
338 * Create a duplicate course module record so we can create the upgraded
339 * assign module alongside the old assignment module.
340 *
341 * @param stdClass $cm The old course module record
342 * @param int $moduleid The id of the new assign module
343 * @param int $newinstanceid The id of the new instance of the assign module
344 * @return mixed stdClass|bool The new course module record or FALSE
345 */
346 private function duplicate_course_module(stdClass $cm, $moduleid, $newinstanceid) {
347 global $DB, $CFG;
348
349 $newcm = new stdClass();
350 $newcm->course = $cm->course;
351 $newcm->module = $moduleid;
352 $newcm->instance = $newinstanceid;
353 $newcm->visible = $cm->visible;
354 $newcm->section = $cm->section;
355 $newcm->score = $cm->score;
356 $newcm->indent = $cm->indent;
357 $newcm->groupmode = $cm->groupmode;
358 $newcm->groupingid = $cm->groupingid;
359 $newcm->groupmembersonly = $cm->groupmembersonly;
360 $newcm->completion = $cm->completion;
361 $newcm->completiongradeitemnumber = $cm->completiongradeitemnumber;
362 $newcm->completionview = $cm->completionview;
363 $newcm->completionexpected = $cm->completionexpected;
e5403f8c 364 if (!empty($CFG->enableavailability)) {
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365 $newcm->availablefrom = $cm->availablefrom;
366 $newcm->availableuntil = $cm->availableuntil;
367 $newcm->showavailability = $cm->showavailability;
368 }
369 $newcm->showdescription = $cm->showdescription;
370
371 $newcmid = add_course_module($newcm);
372 $newcm = get_coursemodule_from_id('', $newcmid, $cm->course);
373 if (!$newcm) {
374 return false;
375 }
376 $section = $DB->get_record("course_sections", array("id"=>$newcm->section));
377 if (!$section) {
378 return false;
379 }
380
722e6ba9 381 $newcm->section = course_add_cm_to_section($newcm->course, $newcm->id, $section->section);
bbd0e548 382
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383 // Make sure visibility is set correctly (in particular in calendar).
384 // Note: Allow them to set it even without moodle/course:activityvisibility.
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385 set_coursemodule_visible($newcm->id, $newcm->visible);
386
387 return $newcm;
388 }
bbd0e548 389}