public function save_dates(cm_info $cm, array $dates)
{
global $DB, $COURSE;
$update = new stdClass();
$update->id = $cm->instance;
$update->duedate = $dates['duedate'];
$update->allowsubmissionsfromdate = $dates['allowsubmissionsfromdate'];
$update->cutoffdate = $dates['cutoffdate'];
$result = $DB->update_record('assign', $update);
$module = new assign(context_module::instance($cm->id), null, null);
// Update the calendar and grades.
$module->update_calendar($cm->id);
$module->update_gradebook(false, $cm->id);
}
/**
* This function converts all of the base settings for an instance of
* the old assignment to the new format. Then it calls each of the plugins
* to see if they can help upgrade this assignment.
* @param int $oldassignmentid (don't rely on the old assignment type even being installed)
* @param string $log This string gets appended to during the conversion process
* @return bool true or false
*/
public function upgrade_assignment($oldassignmentid, & $log) {
// steps to upgrade an assignment
global $DB, $CFG, $USER;
// steps to upgrade an assignment
// is the user the admin? admin check goes here
if (!is_siteadmin($USER->id)) {
return false;
}
// should we use a shutdown handler to rollback on timeout?
@set_time_limit(ASSIGN_MAX_UPGRADE_TIME_SECS);
// get the module details
$oldmodule = $DB->get_record('modules', array('name'=>'assignment'), '*', MUST_EXIST);
$oldcoursemodule = $DB->get_record('course_modules', array('module'=>$oldmodule->id, 'instance'=>$oldassignmentid), '*', MUST_EXIST);
$oldcontext = context_module::instance($oldcoursemodule->id);
// first insert an assign instance to get the id
$oldassignment = $DB->get_record('assignment', array('id'=>$oldassignmentid), '*', MUST_EXIST);
$oldversion = get_config('assignment_' . $oldassignment->assignmenttype, 'version');
$data = new stdClass();
$data->course = $oldassignment->course;
$data->name = $oldassignment->name;
$data->intro = $oldassignment->intro;
$data->introformat = $oldassignment->introformat;
$data->alwaysshowdescription = 1;
$data->sendnotifications = $oldassignment->emailteachers;
$data->sendlatenotifications = $oldassignment->emailteachers;
$data->duedate = $oldassignment->timedue;
$data->allowsubmissionsfromdate = $oldassignment->timeavailable;
$data->grade = $oldassignment->grade;
$data->submissiondrafts = $oldassignment->resubmit;
$data->preventlatesubmissions = $oldassignment->preventlate;
$newassignment = new assign(null, null, null);
if (!$newassignment->add_instance($data, false)) {
$log = get_string('couldnotcreatenewassignmentinstance', 'mod_assign');
return false;
}
// now create a new coursemodule from the old one
$newmodule = $DB->get_record('modules', array('name'=>'assign'), '*', MUST_EXIST);
$newcoursemodule = $this->duplicate_course_module($oldcoursemodule, $newmodule->id, $newassignment->get_instance()->id);
if (!$newcoursemodule) {
$log = get_string('couldnotcreatenewcoursemodule', 'mod_assign');
return false;
}
// convert the base database tables (assignment, submission, grade)
// these are used to store information in case a rollback is required
$gradingarea = null;
$gradingdefinitions = null;
$gradeidmap = array();
$completiondone = false;
$gradesdone = false;
// from this point we want to rollback on failure
$rollback = false;
try {
$newassignment->set_context(context_module::instance($newcoursemodule->id));
// the course module has now been created - time to update the core tables
// copy intro files
$newassignment->copy_area_files_for_upgrade($oldcontext->id, 'mod_assignment', 'intro', 0,
$newassignment->get_context()->id, 'mod_assign', 'intro', 0);
// get the plugins to do their bit
foreach ($newassignment->get_submission_plugins() as $plugin) {
if ($plugin->can_upgrade($oldassignment->assignmenttype, $oldversion)) {
$plugin->enable();
if (!$plugin->upgrade_settings($oldcontext, $oldassignment, $log)) {
$rollback = true;
}
}
}
foreach ($newassignment->get_feedback_plugins() as $plugin) {
if ($plugin->can_upgrade($oldassignment->assignmenttype, $oldversion)) {
$plugin->enable();
if (!$plugin->upgrade_settings($oldcontext, $oldassignment, $log)) {
$rollback = true;
}
}
}
// see if there is advanced grading upgrades required
$gradingarea = $DB->get_record('grading_areas', array('contextid'=>$oldcontext->id, 'areaname'=>'submission'), '*', IGNORE_MISSING);
if ($gradingarea) {
$DB->update_record('grading_areas', array('id'=>$gradingarea->id, 'contextid'=>$newassignment->get_context()->id, 'component'=>'mod_assign', 'areaname'=>'submissions'));
$gradingdefinitions = $DB->get_records('grading_definitions', array('areaid'=>$gradingarea->id));
}
// upgrade completion data
$DB->set_field('course_modules_completion', 'coursemoduleid', $newcoursemodule->id, array('coursemoduleid'=>$oldcoursemodule->id));
$DB->set_field('course_completion_criteria', 'module', 'assign', array('moduleinstance'=>$oldcoursemodule->id));
$DB->set_field('course_completion_criteria', 'moduleinstance', $newcoursemodule->id, array('moduleinstance'=>$oldcoursemodule->id));
$completiondone = true;
// copy all the submission data (and get plugins to do their bit)
$oldsubmissions = $DB->get_records('assignment_submissions', array('assignment'=>$oldassignmentid));
foreach ($oldsubmissions as $oldsubmission) {
$submission = new stdClass();
$submission->assignment = $newassignment->get_instance()->id;
$submission->userid = $oldsubmission->userid;
$submission->timecreated = $oldsubmission->timecreated;
$submission->timemodified = $oldsubmission->timemodified;
$submission->status = ASSIGN_SUBMISSION_STATUS_SUBMITTED;
$submission->id = $DB->insert_record('assign_submission', $submission);
if (!$submission->id) {
$log .= get_string('couldnotinsertsubmission', 'mod_assign', $submission->userid);
$rollback = true;
}
foreach ($newassignment->get_submission_plugins() as $plugin) {
if ($plugin->can_upgrade($oldassignment->assignmenttype, $oldversion)) {
if (!$plugin->upgrade($oldcontext, $oldassignment, $oldsubmission, $submission, $log)) {
$rollback = true;
}
}
}
if ($oldsubmission->timemarked) {
// submission has been graded - create a grade record
$grade = new stdClass();
$grade->assignment = $newassignment->get_instance()->id;
$grade->userid = $oldsubmission->userid;
$grade->grader = $oldsubmission->teacher;
$grade->timemodified = $oldsubmission->timemarked;
$grade->timecreated = $oldsubmission->timecreated;
// $grade->locked = $oldsubmission->locked;
$grade->grade = $oldsubmission->grade;
$grade->mailed = $oldsubmission->mailed;
$grade->id = $DB->insert_record('assign_grades', $grade);
if (!$grade->id) {
$log .= get_string('couldnotinsertgrade', 'mod_assign', $grade->userid);
$rollback = true;
}
// copy any grading instances
if ($gradingarea) {
$gradeidmap[$grade->id] = $oldsubmission->id;
foreach ($gradingdefinitions as $definition) {
$DB->set_field('grading_instances', 'itemid', $grade->id, array('definitionid'=>$definition->id, 'itemid'=>$oldsubmission->id));
}
}
foreach ($newassignment->get_feedback_plugins() as $plugin) {
if ($plugin->can_upgrade($oldassignment->assignmenttype, $oldversion)) {
if (!$plugin->upgrade($oldcontext, $oldassignment, $oldsubmission, $grade, $log)) {
$rollback = true;
}
}
}
}
}
$newassignment->update_calendar($newcoursemodule->id);
$newassignment->update_gradebook(false,$newcoursemodule->id);
// copy the grades from the old assignment to the new one
$DB->set_field('grade_items', 'itemmodule', 'assign', array('iteminstance'=>$oldassignment->id));
$DB->set_field('grade_items', 'iteminstance', $newassignment->get_instance()->id, array('iteminstance'=>$oldassignment->id));
$gradesdone = true;
} catch (Exception $exception) {
$rollback = true;
$log .= get_string('conversionexception', 'mod_assign', $exception->error);
}
if ($rollback) {
// roll back the grades changes
if ($gradesdone) {
// copy the grades from the old assignment to the new one
$DB->set_field('grade_items', 'itemmodule', 'assignment', array('iteminstance'=>$newassignment->get_instance()->id));
$DB->set_field('grade_items', 'iteminstance', $oldassignment->id, array('iteminstance'=>$newassignment->get_instance()->id));
}
// roll back the completion changes
if ($completiondone) {
$DB->set_field('course_modules_completion', 'coursemoduleid', $oldcoursemodule->id, array('coursemoduleid'=>$newcoursemodule->id));
$DB->set_field('course_completion_criteria', 'module', 'assignment', array('moduleinstance'=>$newcoursemodule->id));
$DB->set_field('course_completion_criteria', 'moduleinstance', $oldcoursemodule->id, array('moduleinstance'=>$newcoursemodule->id));
}
// roll back the advanced grading update
if ($gradingarea) {
foreach ($gradeidmap as $newgradeid => $oldsubmissionid) {
foreach ($gradingdefinitions as $definition) {
$DB->set_field('grading_instances', 'itemid', $oldsubmissionid, array('definitionid'=>$definition->id, 'itemid'=>$newgradeid));
}
}
$DB->update_record('grading_areas', array('id'=>$gradingarea->id, 'contextid'=>$oldcontext->id, 'component'=>'mod_assignment', 'areaname'=>'submission'));
}
$newassignment->delete_instance();
return false;
}
// all is well,
// delete the old assignment (use object delete)
$cm = get_coursemodule_from_id('', $oldcoursemodule->id, $oldcoursemodule->course);
if ($cm) {
$this->delete_course_module($cm);
}
rebuild_course_cache($oldcoursemodule->course);
return true;
}
