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See Release Notes
Long Term Support Release
- Bug fixes for general core bugs in 4.1.x will end 13 November 2023 (12 months).
- Bug fixes for security issues in 4.1.x will end 10 November 2025 (36 months).
- PHP version: minimum PHP 7.4.0 Note: minimum PHP version has increased since Moodle 4.0. PHP 8.0.x is supported too.
/lib/ -> completionlib.php (source)
<?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/>.
/**
* Contains classes, functions and constants used during the tracking
* of activity completion for users.
*
* Completion top-level options (admin setting enablecompletion)
*
* @package core_completion
* @category completion
* @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
use core_completion\activity_custom_completion;
use core_courseformat\base as course_format;
defined('MOODLE_INTERNAL') || die();
/**
* Include the required completion libraries
*/
require_once $CFG->dirroot.'/completion/completion_aggregation.php';
require_once $CFG->dirroot.'/completion/criteria/completion_criteria.php';
require_once $CFG->dirroot.'/completion/completion_completion.php';
require_once $CFG->dirroot.'/completion/completion_criteria_completion.php';
/**
* The completion system is enabled in this site/course
*/
define('COMPLETION_ENABLED', 1);
/**
* The completion system is not enabled in this site/course
*/
define('COMPLETION_DISABLED', 0);
/**
* Completion tracking is disabled for this activity
* This is a completion tracking option per-activity (course_modules/completion)
*/
define('COMPLETION_TRACKING_NONE', 0);
/**
* Manual completion tracking (user ticks box) is enabled for this activity
* This is a completion tracking option per-activity (course_modules/completion)
*/
define('COMPLETION_TRACKING_MANUAL', 1);
/**
* Automatic completion tracking (system ticks box) is enabled for this activity
* This is a completion tracking option per-activity (course_modules/completion)
*/
define('COMPLETION_TRACKING_AUTOMATIC', 2);
/**
* The user has not completed this activity.
* This is a completion state value (course_modules_completion/completionstate)
*/
define('COMPLETION_INCOMPLETE', 0);
/**
* The user has completed this activity. It is not specified whether they have
* passed or failed it.
* This is a completion state value (course_modules_completion/completionstate)
*/
define('COMPLETION_COMPLETE', 1);
/**
* The user has completed this activity with a grade above the pass mark.
* This is a completion state value (course_modules_completion/completionstate)
*/
define('COMPLETION_COMPLETE_PASS', 2);
/**
* The user has completed this activity but their grade is less than the pass mark
* This is a completion state value (course_modules_completion/completionstate)
*/
define('COMPLETION_COMPLETE_FAIL', 3);
/**
* Indicates that the user has received a failing grade for a hidden grade item.
*/
define('COMPLETION_COMPLETE_FAIL_HIDDEN', 4);
/**
* The effect of this change to completion status is unknown.
* A completion effect changes (used only in update_state)
*/
define('COMPLETION_UNKNOWN', -1);
/**
* The user's grade has changed, so their new state might be
* COMPLETION_COMPLETE_PASS or COMPLETION_COMPLETE_FAIL.
* A completion effect changes (used only in update_state)
*/
define('COMPLETION_GRADECHANGE', -2);
/**
* User must view this activity.
* Whether view is required to create an activity (course_modules/completionview)
*/
define('COMPLETION_VIEW_REQUIRED', 1);
/**
* User does not need to view this activity
* Whether view is required to create an activity (course_modules/completionview)
*/
define('COMPLETION_VIEW_NOT_REQUIRED', 0);
/**
* User has viewed this activity.
* Completion viewed state (course_modules_completion/viewed)
*/
define('COMPLETION_VIEWED', 1);
/**
* User has not viewed this activity.
* Completion viewed state (course_modules_completion/viewed)
*/
define('COMPLETION_NOT_VIEWED', 0);
/**
* Completion details should be ORed together and you should return false if
* none apply.
*/
define('COMPLETION_OR', false);
/**
* Completion details should be ANDed together and you should return true if
* none apply
*/
define('COMPLETION_AND', true);
/**
* Course completion criteria aggregation method.
*/
define('COMPLETION_AGGREGATION_ALL', 1);
/**
* Course completion criteria aggregation method.
*/
define('COMPLETION_AGGREGATION_ANY', 2);
/**
* Completion conditions will be displayed to user.
*/
define('COMPLETION_SHOW_CONDITIONS', 1);
/**
* Completion conditions will be hidden from user.
*/
define('COMPLETION_HIDE_CONDITIONS', 0);
/**
* Utility function for checking if the logged in user can view
* another's completion data for a particular course
*
* @access public
* @param int $userid Completion data's owner
* @param mixed $course Course object or Course ID (optional)
* @return boolean
*/
function completion_can_view_data($userid, $course = null) {
global $USER;
if (!isloggedin()) {
return false;
}
if (!is_object($course)) {
$cid = $course;
$course = new stdClass();
$course->id = $cid;
}
// Check if this is the site course
if ($course->id == SITEID) {
$course = null;
}
// Check if completion is enabled
if ($course) {
$cinfo = new completion_info($course);
if (!$cinfo->is_enabled()) {
return false;
}
} else {
if (!completion_info::is_enabled_for_site()) {
return false;
}
}
// Is own user's data?
if ($USER->id == $userid) {
return true;
}
// Check capabilities
$personalcontext = context_user::instance($userid);
if (has_capability('moodle/user:viewuseractivitiesreport', $personalcontext)) {
return true;
} elseif (has_capability('report/completion:view', $personalcontext)) {
return true;
}
if ($course->id) {
$coursecontext = context_course::instance($course->id);
} else {
$coursecontext = context_system::instance();
}
if (has_capability('report/completion:view', $coursecontext)) {
return true;
}
return false;
}
/**
* Class represents completion information for a course.
*
* Does not contain any data, so you can safely construct it multiple times
* without causing any problems.
*
* @package core
* @category completion
* @copyright 2008 Sam Marshall
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class completion_info {
/* @var stdClass Course object passed during construction */
private $course;
/* @var int Course id */
public $course_id;
/* @var array Completion criteria {@link completion_info::get_criteria()} */
private $criteria;
/**
* Return array of aggregation methods
* @return array
*/
public static function get_aggregation_methods() {
return array(
COMPLETION_AGGREGATION_ALL => get_string('all'),
COMPLETION_AGGREGATION_ANY => get_string('any', 'completion'),
);
}
/**
* Constructs with course details.
*
* When instantiating a new completion info object you must provide a course
* object with at least id, and enablecompletion properties. Property
* cacherev is needed if you check completion of the current user since
* it is used for cache validation.
*
* @param stdClass $course Moodle course object.
*/
public function __construct($course) {
$this->course = $course;
$this->course_id = $course->id;
}
/**
* Determines whether completion is enabled across entire site.
*
* @return bool COMPLETION_ENABLED (true) if completion is enabled for the site,
* COMPLETION_DISABLED (false) if it's complete
*/
public static function is_enabled_for_site() {
global $CFG;
return !empty($CFG->enablecompletion);
}
/**
* Checks whether completion is enabled in a particular course and possibly
* activity.
*
* @param stdClass|cm_info $cm Course-module object. If not specified, returns the course
* completion enable state.
* @return mixed COMPLETION_ENABLED or COMPLETION_DISABLED (==0) in the case of
* site and course; COMPLETION_TRACKING_MANUAL, _AUTOMATIC or _NONE (==0)
* for a course-module.
*/
public function is_enabled($cm = null) {
global $CFG, $DB;
// First check global completion
if (!isset($CFG->enablecompletion) || $CFG->enablecompletion == COMPLETION_DISABLED) {
return COMPLETION_DISABLED;
}
// Load data if we do not have enough
if (!isset($this->course->enablecompletion)) {
$this->course = get_course($this->course_id);
}
// Check course completion
if ($this->course->enablecompletion == COMPLETION_DISABLED) {
return COMPLETION_DISABLED;
}
// If there was no $cm and we got this far, then it's enabled
if (!$cm) {
return COMPLETION_ENABLED;
}
// Return course-module completion value
return $cm->completion;
}
/**
* Displays the 'Your progress' help icon, if completion tracking is enabled.
* Just prints the result of display_help_icon().
*
* @deprecated since Moodle 2.0 - Use display_help_icon instead.
*/
public function print_help_icon() {
debugging('The function print_help_icon() is deprecated, please do not use it anymore.',
DEBUG_DEVELOPER);
print $this->display_help_icon();
}
/**
* Returns the 'Your progress' help icon, if completion tracking is enabled.
*
* @return string HTML code for help icon, or blank if not needed
* @deprecated since Moodle 4.0 - The 'Your progress' info isn't displayed any more.
*/
public function display_help_icon() {
global $PAGE, $OUTPUT, $USER;
debugging('The function display_help_icon() is deprecated, please do not use it anymore.',
DEBUG_DEVELOPER);
$result = '';
if ($this->is_enabled() && !$PAGE->user_is_editing() && $this->is_tracked_user($USER->id) && isloggedin() &&
!isguestuser()) {
$result .= html_writer::tag('div', get_string('yourprogress','completion') .
$OUTPUT->help_icon('completionicons', 'completion'), array('id' => 'completionprogressid',
'class' => 'completionprogress'));
}
return $result;
}
/**
* Get a course completion for a user
*
* @param int $user_id User id
* @param int $criteriatype Specific criteria type to return
* @return bool|completion_criteria_completion returns false on fail
*/
public function get_completion($user_id, $criteriatype) {
$completions = $this->get_completions($user_id, $criteriatype);
if (empty($completions)) {
return false;
} elseif (count($completions) > 1) {
< print_error('multipleselfcompletioncriteria', 'completion');
> throw new \moodle_exception('multipleselfcompletioncriteria', 'completion');
}
return $completions[0];
}
/**
* Get all course criteria's completion objects for a user
*
* @param int $user_id User id
* @param int $criteriatype Specific criteria type to return (optional)
* @return array
*/
public function get_completions($user_id, $criteriatype = null) {
$criteria = $this->get_criteria($criteriatype);
$completions = array();
foreach ($criteria as $criterion) {
$params = array(
'course' => $this->course_id,
'userid' => $user_id,
'criteriaid' => $criterion->id
);
$completion = new completion_criteria_completion($params);
$completion->attach_criteria($criterion);
$completions[] = $completion;
}
return $completions;
}
/**
* Get completion object for a user and a criteria
*
* @param int $user_id User id
* @param completion_criteria $criteria Criteria object
* @return completion_criteria_completion
*/
public function get_user_completion($user_id, $criteria) {
$params = array(
'course' => $this->course_id,
'userid' => $user_id,
'criteriaid' => $criteria->id,
);
$completion = new completion_criteria_completion($params);
return $completion;
}
/**
* Check if course has completion criteria set
*
* @return bool Returns true if there are criteria
*/
public function has_criteria() {
$criteria = $this->get_criteria();
return (bool) count($criteria);
}
/**
* Get course completion criteria
*
* @param int $criteriatype Specific criteria type to return (optional)
*/
public function get_criteria($criteriatype = null) {
// Fill cache if empty
if (!is_array($this->criteria)) {
global $DB;
$params = array(
'course' => $this->course->id
);
// Load criteria from database
$records = (array)$DB->get_records('course_completion_criteria', $params);
// Order records so activities are in the same order as they appear on the course view page.
if ($records) {
$activitiesorder = array_keys(get_fast_modinfo($this->course)->get_cms());
usort($records, function ($a, $b) use ($activitiesorder) {
$aidx = ($a->criteriatype == COMPLETION_CRITERIA_TYPE_ACTIVITY) ?
array_search($a->moduleinstance, $activitiesorder) : false;
$bidx = ($b->criteriatype == COMPLETION_CRITERIA_TYPE_ACTIVITY) ?
array_search($b->moduleinstance, $activitiesorder) : false;
if ($aidx === false || $bidx === false || $aidx == $bidx) {
return 0;
}
return ($aidx < $bidx) ? -1 : 1;
});
}
// Build array of criteria objects
$this->criteria = array();
foreach ($records as $record) {
$this->criteria[$record->id] = completion_criteria::factory((array)$record);
}
}
// If after all criteria
if ($criteriatype === null) {
return $this->criteria;
}
// If we are only after a specific criteria type
$criteria = array();
foreach ($this->criteria as $criterion) {
if ($criterion->criteriatype != $criteriatype) {
continue;
}
$criteria[$criterion->id] = $criterion;
}
return $criteria;
}
/**
* Get aggregation method
*
* @param int $criteriatype If none supplied, get overall aggregation method (optional)
* @return int One of COMPLETION_AGGREGATION_ALL or COMPLETION_AGGREGATION_ANY
*/
public function get_aggregation_method($criteriatype = null) {
$params = array(
'course' => $this->course_id,
'criteriatype' => $criteriatype
);
$aggregation = new completion_aggregation($params);
if (!$aggregation->id) {
$aggregation->method = COMPLETION_AGGREGATION_ALL;
}
return $aggregation->method;
}
/**
* @deprecated since Moodle 2.8 MDL-46290.
*/
public function get_incomplete_criteria() {
throw new coding_exception('completion_info->get_incomplete_criteria() is removed.');
}
/**
* Clear old course completion criteria
*/
public function clear_criteria() {
global $DB;
// Remove completion criteria records for the course itself, and any records that refer to the course.
$select = 'course = :course OR (criteriatype = :type AND courseinstance = :courseinstance)';
$params = [
'course' => $this->course_id,
'type' => COMPLETION_CRITERIA_TYPE_COURSE,
'courseinstance' => $this->course_id,
];
$DB->delete_records_select('course_completion_criteria', $select, $params);
$DB->delete_records('course_completion_aggr_methd', array('course' => $this->course_id));
$this->delete_course_completion_data();
}
/**
* Has the supplied user completed this course
*
* @param int $user_id User's id
* @return boolean
*/
public function is_course_complete($user_id) {
$params = array(
'userid' => $user_id,
'course' => $this->course_id
);
$ccompletion = new completion_completion($params);
return $ccompletion->is_complete();
}
/**
* Check whether the supplied user can override the activity completion statuses within the current course.
*
* @param stdClass $user The user object.
* @return bool True if the user can override, false otherwise.
*/
public function user_can_override_completion($user) {
return has_capability('moodle/course:overridecompletion', context_course::instance($this->course_id), $user);
}
/**
* Updates (if necessary) the completion state of activity $cm for the given
* user.
*
* For manual completion, this function is called when completion is toggled
* with $possibleresult set to the target state.
*
* For automatic completion, this function should be called every time a module
* does something which might influence a user's completion state. For example,
* if a forum provides options for marking itself 'completed' once a user makes
* N posts, this function should be called every time a user makes a new post.
* [After the post has been saved to the database]. When calling, you do not
* need to pass in the new completion state. Instead this function carries out completion
* calculation by checking grades and viewed state itself, and calling the involved module
* via mod_{modulename}\\completion\\custom_completion::get_overall_completion_state() to
* check module-specific conditions.
*
* @param stdClass|cm_info $cm Course-module
* @param int $possibleresult Expected completion result. If the event that
* has just occurred (e.g. add post) can only result in making the activity
* complete when it wasn't before, use COMPLETION_COMPLETE. If the event that
* has just occurred (e.g. delete post) can only result in making the activity
* not complete when it was previously complete, use COMPLETION_INCOMPLETE.
* Otherwise use COMPLETION_UNKNOWN. Setting this value to something other than
* COMPLETION_UNKNOWN significantly improves performance because it will abandon
* processing early if the user's completion state already matches the expected
* result. For manual events, COMPLETION_COMPLETE or COMPLETION_INCOMPLETE
* must be used; these directly set the specified state.
* @param int $userid User ID to be updated. Default 0 = current user
* @param bool $override Whether manually overriding the existing completion state.
* @param bool $isbulkupdate If bulk grade update is happening.
* @return void
* @throws moodle_exception if trying to override without permission.
*/
public function update_state($cm, $possibleresult=COMPLETION_UNKNOWN, $userid=0,
$override = false, $isbulkupdate = false) {
global $USER;
// Do nothing if completion is not enabled for that activity
if (!$this->is_enabled($cm)) {
return;
}
// If we're processing an override and the current user isn't allowed to do so, then throw an exception.
if ($override) {
if (!$this->user_can_override_completion($USER)) {
throw new required_capability_exception(context_course::instance($this->course_id),
'moodle/course:overridecompletion', 'nopermission', '');
}
}
// Default to current user if one is not provided.
if ($userid == 0) {
$userid = $USER->id;
}
// Delete the cm's cached completion data for this user if automatic completion is enabled.
// This ensures any changes to the status of individual completion conditions in the activity will be fetched.
if ($cm->completion == COMPLETION_TRACKING_AUTOMATIC) {
$completioncache = cache::make('core', 'completion');
$completionkey = $userid . '_' . $this->course->id;
$completiondata = $completioncache->get($completionkey);
if ($completiondata !== false) {
unset($completiondata[$cm->id]);
$completioncache->set($completionkey, $completiondata);
}
}
// Get current value of completion state and do nothing if it's same as
// the possible result of this change. If the change is to COMPLETE and the
// current value is one of the COMPLETE_xx subtypes, ignore that as well
$current = $this->get_data($cm, false, $userid);
if ($possibleresult == $current->completionstate ||
($possibleresult == COMPLETION_COMPLETE &&
($current->completionstate == COMPLETION_COMPLETE_PASS ||
$current->completionstate == COMPLETION_COMPLETE_FAIL))) {
return;
}
// The activity completion alters the course state cache for this particular user.
$course = get_course($cm->course);
if ($course) {
course_format::session_cache_reset($course);
}
// For auto tracking, if the status is overridden to 'COMPLETION_COMPLETE', then disallow further changes,
// unless processing another override.
// Basically, we want those activities which have been overridden to COMPLETE to hold state, and those which have been
// overridden to INCOMPLETE to still be processed by normal completion triggers.
if ($cm->completion == COMPLETION_TRACKING_AUTOMATIC && !is_null($current->overrideby)
&& $current->completionstate == COMPLETION_COMPLETE && !$override) {
return;
}
// For manual tracking, or if overriding the completion state, we set the state directly.
if ($cm->completion == COMPLETION_TRACKING_MANUAL || $override) {
switch($possibleresult) {
case COMPLETION_COMPLETE:
case COMPLETION_INCOMPLETE:
$newstate = $possibleresult;
break;
default:
$this->internal_systemerror("Unexpected manual completion state for {$cm->id}: $possibleresult");
}
} else {
$newstate = $this->internal_get_state($cm, $userid, $current);
}
// If the overall completion state has changed, update it in the cache.
if ($newstate != $current->completionstate) {
$current->completionstate = $newstate;
$current->timemodified = time();
$current->overrideby = $override ? $USER->id : null;
$this->internal_set_data($cm, $current, $isbulkupdate);
}
}
/**
* Calculates the completion state for an activity and user.
*
* Internal function. Not private, so we can unit-test it.
*
* @param stdClass|cm_info $cm Activity
* @param int $userid ID of user
* @param stdClass $current Previous completion information from database
* @return mixed
*/
public function internal_get_state($cm, $userid, $current) {
global $USER, $DB;
// Get user ID
if (!$userid) {
$userid = $USER->id;
}
$newstate = COMPLETION_COMPLETE;
if ($cm instanceof stdClass) {
// Modname hopefully is provided in $cm but just in case it isn't, let's grab it.
if (!isset($cm->modname)) {
$cm->modname = $DB->get_field('modules', 'name', array('id' => $cm->module));
}
// Some functions call this method and pass $cm as an object with ID only. Make sure course is set as well.
if (!isset($cm->course)) {
$cm->course = $this->course_id;
}
}
// Make sure we're using a cm_info object.
$cminfo = cm_info::create($cm, $userid);
$completionstate = $this->get_core_completion_state($cminfo, $userid);
if (plugin_supports('mod', $cminfo->modname, FEATURE_COMPLETION_HAS_RULES)) {
$response = true;
$cmcompletionclass = activity_custom_completion::get_cm_completion_class($cminfo->modname);
if ($cmcompletionclass) {
/** @var activity_custom_completion $cmcompletion */
$cmcompletion = new $cmcompletionclass($cminfo, $userid, $completionstate);
$response = $cmcompletion->get_overall_completion_state() != COMPLETION_INCOMPLETE;
} else {
// Fallback to the get_completion_state callback.
$cmcompletionclass = "mod_{$cminfo->modname}\\completion\\custom_completion";
$function = $cminfo->modname . '_get_completion_state';
if (!function_exists($function)) {
$this->internal_systemerror("Module {$cminfo->modname} claims to support FEATURE_COMPLETION_HAS_RULES " .
"but does not implement the custom completion class $cmcompletionclass which extends " .
"\core_completion\activity_custom_completion.");
}
debugging("*_get_completion_state() callback functions such as $function have been deprecated and should no " .
"longer be used. Please implement the custom completion class $cmcompletionclass which extends " .
"\core_completion\activity_custom_completion.", DEBUG_DEVELOPER);
$response = $function($this->course, $cm, $userid, COMPLETION_AND, $completionstate);
}
if (!$response) {
return COMPLETION_INCOMPLETE;
}
}
if ($completionstate) {
// We have allowed the plugins to do it's thing and run their own checks.
// We have now reached a state where we need to AND all the calculated results.
// Preference for COMPLETION_COMPLETE_PASS over COMPLETION_COMPLETE for proper indication in reports.
$newstate = array_reduce($completionstate, function($carry, $value) {
if (in_array(COMPLETION_INCOMPLETE, [$carry, $value])) {
return COMPLETION_INCOMPLETE;
} else if (in_array(COMPLETION_COMPLETE_FAIL, [$carry, $value])) {
return COMPLETION_COMPLETE_FAIL;
} else {
return in_array(COMPLETION_COMPLETE_PASS, [$carry, $value]) ? COMPLETION_COMPLETE_PASS : $value;
}
}, COMPLETION_COMPLETE);
}
return $newstate;
}
/**
* Fetches the completion state for an activity completion's require grade completion requirement.
*
* @param cm_info $cm The course module information.
* @param int $userid The user ID.
* @return int The completion state.
*/
public function get_grade_completion(cm_info $cm, int $userid): int {
global $CFG;
require_once($CFG->libdir . '/gradelib.php');
$item = grade_item::fetch([
'courseid' => $cm->course,
'itemtype' => 'mod',
'itemmodule' => $cm->modname,
'iteminstance' => $cm->instance,
'itemnumber' => $cm->completiongradeitemnumber
]);
if ($item) {
// Fetch 'grades' (will be one or none).
$grades = grade_grade::fetch_users_grades($item, [$userid], false);
if (empty($grades)) {
// No grade for user.
return COMPLETION_INCOMPLETE;
}
if (count($grades) > 1) {
$this->internal_systemerror("Unexpected result: multiple grades for
item '{$item->id}', user '{$userid}'");
}
$returnpassfail = !empty($cm->completionpassgrade);
return self::internal_get_grade_state($item, reset($grades), $returnpassfail);
}
return COMPLETION_INCOMPLETE;
}
/**
* Marks a module as viewed.
*
* Should be called whenever a module is 'viewed' (it is up to the module how to
* determine that). Has no effect if viewing is not set as a completion condition.
*
* Note that this function must be called before you print the page header because
* it is possible that the navigation block may depend on it. If you call it after
* printing the header, it shows a developer debug warning.
*
* @param stdClass|cm_info $cm Activity
* @param int $userid User ID or 0 (default) for current user
* @return void
*/
public function set_module_viewed($cm, $userid=0) {
global $PAGE;
if ($PAGE->headerprinted) {
debugging('set_module_viewed must be called before header is printed',
DEBUG_DEVELOPER);
}
// Don't do anything if view condition is not turned on
if ($cm->completionview == COMPLETION_VIEW_NOT_REQUIRED || !$this->is_enabled($cm)) {
return;
}
// Get current completion state
$data = $this->get_data($cm, false, $userid);
// If we already viewed it, don't do anything unless the completion status is overridden.
// If the completion status is overridden, then we need to allow this 'view' to trigger automatic completion again.
if ($data->viewed == COMPLETION_VIEWED && empty($data->overrideby)) {
return;
}
// OK, change state, save it, and update completion
$data->viewed = COMPLETION_VIEWED;
$this->internal_set_data($cm, $data);
$this->update_state($cm, COMPLETION_COMPLETE, $userid);
}
/**
* Determines how much completion data exists for an activity. This is used when
* deciding whether completion information should be 'locked' in the module
* editing form.
*
* @param cm_info $cm Activity
* @return int The number of users who have completion data stored for this
* activity, 0 if none
*/
public function count_user_data($cm) {
global $DB;
return $DB->get_field_sql("
SELECT
COUNT(1)
FROM
{course_modules_completion}
WHERE
coursemoduleid=? AND completionstate<>0", array($cm->id));
}
/**
* Determines how much course completion data exists for a course. This is used when
* deciding whether completion information should be 'locked' in the completion
* settings form and activity completion settings.
*
* @param int $user_id Optionally only get course completion data for a single user
* @return int The number of users who have completion data stored for this
* course, 0 if none
*/
public function count_course_user_data($user_id = null) {
global $DB;
$sql = '
SELECT
COUNT(1)
FROM
{course_completion_crit_compl}
WHERE
course = ?
';
$params = array($this->course_id);
// Limit data to a single user if an ID is supplied
if ($user_id) {
$sql .= ' AND userid = ?';
$params[] = $user_id;
}
return $DB->get_field_sql($sql, $params);
}
/**
* Check if this course's completion criteria should be locked
*
* @return boolean
*/
public function is_course_locked() {
return (bool) $this->count_course_user_data();
}
/**
* Deletes all course completion completion data.
*
* Intended to be used when unlocking completion criteria settings.
*/
public function delete_course_completion_data() {
global $DB;
$DB->delete_records('course_completions', array('course' => $this->course_id));
$DB->delete_records('course_completion_crit_compl', array('course' => $this->course_id));
// Difficult to find affected users, just purge all completion cache.
cache::make('core', 'completion')->purge();
cache::make('core', 'coursecompletion')->purge();
}
/**
* Deletes all activity and course completion data for an entire course
* (the below delete_all_state function does this for a single activity).
*
* Used by course reset page.
*/
public function delete_all_completion_data() {
global $DB;
// Delete from database.
$DB->delete_records_select('course_modules_completion',
'coursemoduleid IN (SELECT id FROM {course_modules} WHERE course=?)',
array($this->course_id));
<
> $DB->delete_records_select('course_modules_viewed',
> 'coursemoduleid IN (SELECT id FROM {course_modules} WHERE course=?)',
> [$this->course_id]);
// Wipe course completion data too.
$this->delete_course_completion_data();
}
/**
* Deletes completion state related to an activity for all users.
*
* Intended for use only when the activity itself is deleted.
*
* @param stdClass|cm_info $cm Activity
*/
public function delete_all_state($cm) {
global $DB;
// Delete from database
$DB->delete_records('course_modules_completion', array('coursemoduleid'=>$cm->id));
// Check if there is an associated course completion criteria
$criteria = $this->get_criteria(COMPLETION_CRITERIA_TYPE_ACTIVITY);
$acriteria = false;
foreach ($criteria as $criterion) {
if ($criterion->moduleinstance == $cm->id) {
$acriteria = $criterion;
break;
}
}
if ($acriteria) {
// Delete all criteria completions relating to this activity
$DB->delete_records('course_completion_crit_compl', array('course' => $this->course_id, 'criteriaid' => $acriteria->id));
$DB->delete_records('course_completions', array('course' => $this->course_id));
}
// Difficult to find affected users, just purge all completion cache.
cache::make('core', 'completion')->purge();
cache::make('core', 'coursecompletion')->purge();
}
/**
* Recalculates completion state related to an activity for all users.
*
* Intended for use if completion conditions change. (This should be avoided
* as it may cause some things to become incomplete when they were previously
* complete, with the effect - for example - of hiding a later activity that
* was previously available.)
*
* Resetting state of manual tickbox has same result as deleting state for
* it.
*
* @param stcClass|cm_info $cm Activity
*/
public function reset_all_state($cm) {
global $DB;
if ($cm->completion == COMPLETION_TRACKING_MANUAL) {
$this->delete_all_state($cm);
return;
}
// Get current list of users with completion state
$rs = $DB->get_recordset('course_modules_completion', array('coursemoduleid'=>$cm->id), '', 'userid');
$keepusers = array();
foreach ($rs as $rec) {
$keepusers[] = $rec->userid;
}
$rs->close();
// Delete all existing state.
$this->delete_all_state($cm);
// Merge this with list of planned users (according to roles)
$trackedusers = $this->get_tracked_users();
foreach ($trackedusers as $trackeduser) {
$keepusers[] = $trackeduser->id;
}
$keepusers = array_unique($keepusers);
// Recalculate state for each kept user
foreach ($keepusers as $keepuser) {
$this->update_state($cm, COMPLETION_UNKNOWN, $keepuser);
}
}
/**
* Obtains completion data for a particular activity and user (from the
* completion cache if available, or by SQL query)
*
* @param stdClass|cm_info $cm Activity; only required field is ->id
* @param bool $wholecourse If true (default false) then, when necessary to
* fill the cache, retrieves information from the entire course not just for
* this one activity
* @param int $userid User ID or 0 (default) for current user
* @param null $unused This parameter has been deprecated since 4.0 and should not be used anymore.
* @return object Completion data. Record from course_modules_completion plus other completion statuses such as
* - Completion status for 'must-receive-grade' completion rule.
* - Custom completion statuses defined by the activity module plugin.
*/
public function get_data($cm, $wholecourse = false, $userid = 0, $unused = null) {
global $USER, $DB;
if ($unused !== null) {
debugging('Deprecated argument passed to ' . __FUNCTION__, DEBUG_DEVELOPER);
}
$completioncache = cache::make('core', 'completion');
// Get user ID
if (!$userid) {
$userid = $USER->id;
}
// Some call completion_info::get_data and pass $cm as an object with ID only. Make sure course is set as well.
if ($cm instanceof stdClass && !isset($cm->course)) {
$cm->course = $this->course_id;
}
// Make sure we're working on a cm_info object.
$cminfo = cm_info::create($cm, $userid);
// Create an anonymous function to remove the 'other_cm_completion_data_fetched' key.
$returnfilteredvalue = function(array $value): stdClass {
return (object) array_filter($value, function(string $key): bool {
return $key !== 'other_cm_completion_data_fetched';
}, ARRAY_FILTER_USE_KEY);
};
// See if requested data is present in cache (use cache for current user only).
$usecache = $userid == $USER->id;
$cacheddata = array();
if ($usecache) {
$key = $userid . '_' . $this->course->id;
if (!isset($this->course->cacherev)) {
$this->course = get_course($this->course_id);
}
< if ($cacheddata = $completioncache->get($key)) {
> if ($cacheddata = ($completioncache->get($key) ?: [])) {
if ($cacheddata['cacherev'] != $this->course->cacherev) {
// Course structure has been changed since the last caching, forget the cache.
$cacheddata = array();
} else if (isset($cacheddata[$cminfo->id])) {
$data = (array) $cacheddata[$cminfo->id];
if (empty($data['other_cm_completion_data_fetched'])) {
$data += $this->get_other_cm_completion_data($cminfo, $userid);
$data['other_cm_completion_data_fetched'] = true;
// Put in cache.
$cacheddata[$cminfo->id] = $data;
$completioncache->set($key, $cacheddata);
}
return $returnfilteredvalue($cacheddata[$cminfo->id]);
}
}
}
// Default data to return when no completion data is found.
$defaultdata = [
'id' => 0,
'coursemoduleid' => $cminfo->id,
'userid' => $userid,
'completionstate' => 0,
'viewed' => 0,
'overrideby' => null,
'timemodified' => 0,
];
// If cached completion data is not found, fetch via SQL.
// Fetch completion data for all of the activities in the course ONLY if we're caching the fetched completion data.
// If we're not caching the completion data, then just fetch the completion data for the user in this course module.
if ($usecache && $wholecourse) {
// Get whole course data for cache.
< $alldatabycmc = $DB->get_records_sql("SELECT cm.id AS cmid, cmc.*
> $alldatabycmc = $DB->get_records_sql("SELECT cm.id AS cmid, cmc.*,
> CASE WHEN cmv.id IS NULL THEN 0 ELSE 1 END AS viewed
FROM {course_modules} cm
< LEFT JOIN {course_modules_completion} cmc ON cmc.coursemoduleid = cm.id
< AND cmc.userid = ?
> LEFT JOIN {course_modules_completion} cmc
> ON cmc.coursemoduleid = cm.id AND cmc.userid = ?
> LEFT JOIN {course_modules_viewed} cmv
> ON cmv.coursemoduleid = cm.id AND cmv.userid = ?
INNER JOIN {modules} m ON m.id = cm.module
< WHERE m.visible = 1 AND cm.course = ?", [$userid, $this->course->id]);
<
> WHERE m.visible = 1 AND cm.course = ?",
> [$userid, $userid, $this->course->id]);
$cminfos = get_fast_modinfo($cm->course, $userid)->get_cms();
// Reindex by course module id.
foreach ($alldatabycmc as $data) {
// Filter acitivites with no cm_info (missing plugins or other causes).
if (!isset($cminfos[$data->cmid])) {
continue;
}
if (empty($data->coursemoduleid)) {
$cacheddata[$data->cmid] = $defaultdata;
if ($data->viewed) {
$cacheddata[$data->cmid]['viewed'] = $data->viewed;
}
$cacheddata[$data->cmid]['coursemoduleid'] = $data->cmid;
} else {
unset($data->cmid);
$cacheddata[$data->coursemoduleid] = (array) $data;
}
}
if (!isset($cacheddata[$cminfo->id])) {
$errormessage = "Unexpected error: course-module {$cminfo->id} could not be found on course {$this->course->id}";
$this->internal_systemerror($errormessage);
}
$data = $cacheddata[$cminfo->id];
} else {
// Get single record
< $data = $DB->get_record('course_modules_completion', array('coursemoduleid' => $cminfo->id, 'userid' => $userid));
< if ($data) {
< $data = (array)$data;
< } else {
< // Row not present counts as 'not complete'.
< $data = $defaultdata;
< }
<
> $data = $this->get_completion_data($cminfo->id, $userid, $defaultdata);
// Put in cache.
$cacheddata[$cminfo->id] = $data;
}
// Fill the other completion data for this user in this module instance.
$data += $this->get_other_cm_completion_data($cminfo, $userid);
$data['other_cm_completion_data_fetched'] = true;
// Put in cache
$cacheddata[$cminfo->id] = $data;
if ($usecache) {
$cacheddata['cacherev'] = $this->course->cacherev;
$completioncache->set($key, $cacheddata);
}
return $returnfilteredvalue($cacheddata[$cminfo->id]);
}
/**
* Get the latest completion state for each criteria used in the module
*
* @param cm_info $cm The corresponding module's information
* @param int $userid The id for the user we are calculating core completion state
* @return array $data The individualised core completion state used in the module.
* Consists of the following keys completiongrade, passgrade, viewed
*/
public function get_core_completion_state(cm_info $cm, int $userid): array {
global $DB;
$data = [];
// Include in the completion info the grade completion, if necessary.
if (!is_null($cm->completiongradeitemnumber)) {
$newstate = $this->get_grade_completion($cm, $userid);
$data['completiongrade'] = $newstate;
if ($cm->completionpassgrade) {
// If we are asking to use pass grade completion but haven't set it properly,
// then default to COMPLETION_COMPLETE_PASS.
if ($newstate == COMPLETION_COMPLETE) {
$newstate = COMPLETION_COMPLETE_PASS;
}
// No need to show failing status for the completiongrade condition when passing grade condition is set.
if (in_array($newstate, [COMPLETION_COMPLETE_FAIL, COMPLETION_COMPLETE_FAIL_HIDDEN])) {
$data['completiongrade'] = COMPLETION_COMPLETE;
// If the grade received by the user is a failing grade for a hidden grade item,
// the 'Require passing grade' criterion is considered incomplete.
if ($newstate == COMPLETION_COMPLETE_FAIL_HIDDEN) {
$newstate = COMPLETION_INCOMPLETE;
}
}
$data['passgrade'] = $newstate;
}
}
// If view is required, try and fetch from the db. In some cases, cache can be invalid.
if ($cm->completionview == COMPLETION_VIEW_REQUIRED) {
$data['viewed'] = COMPLETION_INCOMPLETE;
< $record = $DB->get_record('course_modules_completion', array('coursemoduleid' => $cm->id, 'userid' => $userid));
< if ($record) {
< $data['viewed'] = ($record->viewed == COMPLETION_VIEWED ? COMPLETION_COMPLETE : COMPLETION_INCOMPLETE);
< }
> $record = $DB->record_exists('course_modules_viewed', ['coursemoduleid' => $cm->id, 'userid' => $userid]);
> $data['viewed'] = $record ? COMPLETION_COMPLETE : COMPLETION_INCOMPLETE;
}
return $data;
}
/**
* Adds the user's custom completion data on the given course module.
*
* @param cm_info $cm The course module information.
* @param int $userid The user ID.
* @return array The additional completion data.
*/
protected function get_other_cm_completion_data(cm_info $cm, int $userid): array {
$data = $this->get_core_completion_state($cm, $userid);
// Custom activity module completion data.
// Cast custom data to array before checking for custom completion rules.
// We call ->get_custom_data() instead of ->customdata here because there is the chance of recursive calling,
// and we cannot call a getter from a getter in PHP.
$customdata = (array) $cm->get_custom_data();
// Return early if the plugin does not define custom completion rules.
if (empty($customdata['customcompletionrules'])) {
return $data;
}
// Return early if the activity modules doe not implement the activity_custom_completion class.
$cmcompletionclass = activity_custom_completion::get_cm_completion_class($cm->modname);
if (!$cmcompletionclass) {
return $data;
}
/** @var activity_custom_completion $customcmcompletion */
$customcmcompletion = new $cmcompletionclass($cm, $userid, $data);
foreach ($customdata['customcompletionrules'] as $rule => $enabled) {
if (!$enabled) {
// Skip inactive completion rules.
continue;
}
// Get this custom completion rule's completion state.
$data['customcompletion'][$rule] = $customcmcompletion->get_state($rule);
}
return $data;
}
/**
* Updates completion data for a particular coursemodule and user (user is
* determined from $data).
*
* (Internal function. Not private, so we can unit-test it.)
*
* @param stdClass|cm_info $cm Activity
* @param stdClass $data Data about completion for that user
* @param bool $isbulkupdate If bulk grade update is happening.
*/
public function internal_set_data($cm, $data, $isbulkupdate = false) {
global $USER, $DB, $CFG;
require_once($CFG->dirroot.'/completion/criteria/completion_criteria_activity.php');
$transaction = $DB->start_delegated_transaction();
if (!$data->id) {
// Check there isn't really a row
$data->id = $DB->get_field('course_modules_completion', 'id',
array('coursemoduleid'=>$data->coursemoduleid, 'userid'=>$data->userid));
}
if (!$data->id) {
// Didn't exist before, needs creating
$data->id = $DB->insert_record('course_modules_completion', $data);
} else {
// Has real (nonzero) id meaning that a database row exists, update
$DB->update_record('course_modules_completion', $data);
}
> $dataview = new stdClass();
$transaction->allow_commit();
> $dataview->coursemoduleid = $data->coursemoduleid;
> $dataview->userid = $data->userid;
$cmcontext = context_module::instance($data->coursemoduleid);
> $dataview->id = $DB->get_field('course_modules_viewed', 'id',
> ['coursemoduleid' => $dataview->coursemoduleid, 'userid' => $dataview->userid]);
$completioncache = cache::make('core', 'completion');
> if (!$data->viewed && $dataview->id) {
$cachekey = "{$data->userid}_{$cm->course}";
> $DB->delete_records('course_modules_viewed', ['id' => $dataview->id]);
if ($data->userid == $USER->id) {
> }
// Fetch other completion data to cache (e.g. require grade completion status, custom completion rule statues).
>
$cminfo = cm_info::create($cm, $data->userid); // Make sure we're working on a cm_info object.
> if (!$dataview->id && $data->viewed) {
$otherdata = $this->get_other_cm_completion_data($cminfo, $data->userid);
> $dataview->timecreated = time();
foreach ($otherdata as $key => $value) {
> $dataview->id = $DB->insert_record('course_modules_viewed', $dataview);
$data->$key = $value;
> }
}
// Update module completion in user's cache.
if (!($cachedata = $completioncache->get($cachekey))
|| $cachedata['cacherev'] != $this->course->cacherev) {
$cachedata = array('cacherev' => $this->course->cacherev);
}
$cachedata[$cm->id] = (array) $data;
$cachedata[$cm->id]['other_cm_completion_data_fetched'] = true;
$completioncache->set($cachekey, $cachedata);
// reset modinfo for user (no need to call rebuild_course_cache())
get_fast_modinfo($cm->course, 0, true);
} else {
// Remove another user's completion cache for this course.
$completioncache->delete($cachekey);
}
// For single user actions the code must reevaluate some completion state instantly, see MDL-32103.
if ($isbulkupdate) {
return;
} else {
$userdata = ['userid' => $data->userid, 'courseid' => $this->course_id];
$coursecompletionid = \core_completion\api::mark_course_completions_activity_criteria($userdata);
if ($coursecompletionid) {
aggregate_completions($coursecompletionid);
}
}
// Trigger an event for course module completion changed.
$event = \core\event\course_module_completion_updated::create(array(
'objectid' => $data->id,
'context' => $cmcontext,
'relateduserid' => $data->userid,
'other' => array(
'relateduserid' => $data->userid,
'overrideby' => $data->overrideby,
'completionstate' => $data->completionstate
)
));
$event->add_record_snapshot('course_modules_completion', $data);
$event->trigger();
}
/**
* Return whether or not the course has activities with completion enabled.
*
* @return boolean true when there is at least one activity with completion enabled.
*/
public function has_activities() {
$modinfo = get_fast_modinfo($this->course);
foreach ($modinfo->get_cms() as $cm) {
if ($cm->completion != COMPLETION_TRACKING_NONE) {
return true;
}
}
return false;
}
/**
* Obtains a list of activities for which completion is enabled on the
* course. The list is ordered by the section order of those activities.
*
* @return cm_info[] Array from $cmid => $cm of all activities with completion enabled,
* empty array if none
*/
public function get_activities() {
$modinfo = get_fast_modinfo($this->course);
$result = array();
foreach ($modinfo->get_cms() as $cm) {
if ($cm->completion != COMPLETION_TRACKING_NONE && !$cm->deletioninprogress) {
$result[$cm->id] = $cm;
}
}
return $result;
}
/**
* Checks to see if the userid supplied has a tracked role in
* this course
*
* @param int $userid User id
* @return bool
*/
public function is_tracked_user($userid) {
return is_enrolled(context_course::instance($this->course->id), $userid, 'moodle/course:isincompletionreports', true);
}
/**
* Returns the number of users whose progress is tracked in this course.
*
* Optionally supply a search's where clause, or a group id.
*
* @param string $where Where clause sql (use 'u.whatever' for user table fields)
* @param array $whereparams Where clause params
* @param int $groupid Group id
* @return int Number of tracked users
*/
public function get_num_tracked_users($where = '', $whereparams = array(), $groupid = 0) {
global $DB;
list($enrolledsql, $enrolledparams) = get_enrolled_sql(
context_course::instance($this->course->id), 'moodle/course:isincompletionreports', $groupid, true);
$sql = 'SELECT COUNT(eu.id) FROM (' . $enrolledsql . ') eu JOIN {user} u ON u.id = eu.id';
if ($where) {
$sql .= " WHERE $where";
}
$params = array_merge($enrolledparams, $whereparams);
return $DB->count_records_sql($sql, $params);
}
/**
* Return array of users whose progress is tracked in this course.
*
* Optionally supply a search's where clause, group id, sorting, paging.
*
* @param string $where Where clause sql, referring to 'u.' fields (optional)
* @param array $whereparams Where clause params (optional)
* @param int $groupid Group ID to restrict to (optional)
* @param string $sort Order by clause (optional)
* @param int $limitfrom Result start (optional)
* @param int $limitnum Result max size (optional)
* @param context $extracontext If set, includes extra user information fields
* as appropriate to display for current user in this context
* @return array Array of user objects with user fields (including all identity fields)
*/
public function get_tracked_users($where = '', $whereparams = array(), $groupid = 0,
$sort = '', $limitfrom = '', $limitnum = '', context $extracontext = null) {
global $DB;
list($enrolledsql, $params) = get_enrolled_sql(
context_course::instance($this->course->id),
'moodle/course:isincompletionreports', $groupid, true);
$userfieldsapi = \core_user\fields::for_identity($extracontext)->with_name()->excluding('id', 'idnumber');
$fieldssql = $userfieldsapi->get_sql('u', true);
$sql = 'SELECT u.id, u.idnumber ' . $fieldssql->selects;
$sql .= ' FROM (' . $enrolledsql . ') eu JOIN {user} u ON u.id = eu.id';
if ($where) {
$sql .= " AND $where";
$params = array_merge($params, $whereparams);
}
$sql .= $fieldssql->joins;
$params = array_merge($params, $fieldssql->params);
if ($sort) {
$sql .= " ORDER BY $sort";
}
return $DB->get_records_sql($sql, $params, $limitfrom, $limitnum);
}
/**
* Obtains progress information across a course for all users on that course, or
* for all users in a specific group. Intended for use when displaying progress.
*
* This includes only users who, in course context, have one of the roles for
* which progress is tracked (the gradebookroles admin option) and are enrolled in course.
*
* Users are included (in the first array) even if they do not have
* completion progress for any course-module.
*
* @param bool $sortfirstname If true, sort by first name, otherwise sort by
* last name
* @param string $where Where clause sql (optional)
* @param array $where_params Where clause params (optional)
* @param int $groupid Group ID or 0 (default)/false for all groups
* @param int $pagesize Number of users to actually return (optional)
* @param int $start User to start at if paging (optional)
* @param context $extracontext If set, includes extra user information fields
* as appropriate to display for current user in this context
* @return stdClass with ->total and ->start (same as $start) and ->users;
* an array of user objects (like mdl_user id, firstname, lastname)
* containing an additional ->progress array of coursemoduleid => completionstate
*/
public function get_progress_all($where = '', $where_params = array(), $groupid = 0,
$sort = '', $pagesize = '', $start = '', context $extracontext = null) {
global $CFG, $DB;
// Get list of applicable users
$users = $this->get_tracked_users($where, $where_params, $groupid, $sort,
$start, $pagesize, $extracontext);
// Get progress information for these users in groups of 1, 000 (if needed)
// to avoid making the SQL IN too long
$results = array();
$userids = array();
foreach ($users as $user) {
$userids[] = $user->id;
$results[$user->id] = $user;
$results[$user->id]->progress = array();
}
for($i=0; $i<count($userids); $i+=1000) {
$blocksize = count($userids)-$i < 1000 ? count($userids)-$i : 1000;
list($insql, $params) = $DB->get_in_or_equal(array_slice($userids, $i, $blocksize));
array_splice($params, 0, 0, array($this->course->id));
$rs = $DB->get_recordset_sql("
SELECT
cmc.*
FROM
{course_modules} cm
INNER JOIN {course_modules_completion} cmc ON cm.id=cmc.coursemoduleid
WHERE
cm.course=? AND cmc.userid $insql", $params);
foreach ($rs as $progress) {
$progress = (object)$progress;
$results[$progress->userid]->progress[$progress->coursemoduleid] = $progress;
}
$rs->close();
}
return $results;
}
/**
* Called by grade code to inform the completion system when a grade has
* been changed. If the changed grade is used to determine completion for
* the course-module, then the completion status will be updated.
*
* @param stdClass|cm_info $cm Course-module for item that owns grade
* @param grade_item $item Grade item
* @param stdClass $grade
* @param bool $deleted
* @param bool $isbulkupdate If bulk grade update is happening.
*/
public function inform_grade_changed($cm, $item, $grade, $deleted, $isbulkupdate = false) {
// Bail out now if completion is not enabled for course-module, it is enabled
// but is set to manual, grade is not used to compute completion, or this
// is a different numbered grade
if (!$this->is_enabled($cm) ||
$cm->completion == COMPLETION_TRACKING_MANUAL ||
is_null($cm->completiongradeitemnumber) ||
$item->itemnumber != $cm->completiongradeitemnumber) {
return;
}
// What is the expected result based on this grade?
if ($deleted) {
// Grade being deleted, so only change could be to make it incomplete
$possibleresult = COMPLETION_INCOMPLETE;
} else {
$possibleresult = self::internal_get_grade_state($item, $grade);
}
// OK, let's update state based on this
$this->update_state($cm, $possibleresult, $grade->userid, false, $isbulkupdate);
}
/**
* Calculates the completion state that would result from a graded item
* (where grade-based completion is turned on) based on the actual grade
* and settings.
*
* Internal function. Not private, so we can unit-test it.
*
* @param grade_item $item an instance of grade_item
* @param grade_grade $grade an instance of grade_grade
* @param bool $returnpassfail If course module has pass grade completion criteria
* @return int Completion state e.g. COMPLETION_INCOMPLETE
*/
public static function internal_get_grade_state($item, $grade, bool $returnpassfail = false) {
// If no grade is supplied or the grade doesn't have an actual value, then
// this is not complete.
if (!$grade || (is_null($grade->finalgrade) && is_null($grade->rawgrade))) {
return COMPLETION_INCOMPLETE;
}
// Conditions to show pass/fail:
// a) Completion criteria to achieve pass grade is enabled
// or
// a) Grade has pass mark (default is 0.00000 which is boolean true so be careful)
// b) Grade is visible (neither hidden nor hidden-until)
if ($item->gradepass && $item->gradepass > 0.000009 && ($returnpassfail || !$item->hidden)) {
// Use final grade if set otherwise raw grade
$score = !is_null($grade->finalgrade) ? $grade->finalgrade : $grade->rawgrade;
// We are displaying and tracking pass/fail
if ($score >= $item->gradepass) {
return COMPLETION_COMPLETE_PASS;
} else if ($item->hidden) {
return COMPLETION_COMPLETE_FAIL_HIDDEN;
} else {
return COMPLETION_COMPLETE_FAIL;
}
} else {
// Not displaying pass/fail, so just if there is a grade
if (!is_null($grade->finalgrade) || !is_null($grade->rawgrade)) {
// Grade exists, so maybe complete now
return COMPLETION_COMPLETE;
} else {
// Grade does not exist, so maybe incomplete now
return COMPLETION_INCOMPLETE;
}
}
}
/**
* Aggregate activity completion state
*
* @param int $type Aggregation type (COMPLETION_* constant)
* @param bool $old Old state
* @param bool $new New state
* @return bool
*/
public static function aggregate_completion_states($type, $old, $new) {
if ($type == COMPLETION_AND) {
return $old && $new;
} else {
return $old || $new;
}
}
/**
* This is to be used only for system errors (things that shouldn't happen)
* and not user-level errors.
*
* @global type $CFG
* @param string $error Error string (will not be displayed to user unless debugging is enabled)
* @throws moodle_exception Exception with the error string as debug info
*/
public function internal_systemerror($error) {
global $CFG;
throw new moodle_exception('err_system','completion',
$CFG->wwwroot.'/course/view.php?id='.$this->course->id,null,$error);
> }
}
>
}
> /**
> * Get completion data include viewed field.
/**
> *
* Aggregate criteria status's as per configured aggregation method.
> * @param int $coursemoduleid The course module id.
*
> * @param int $userid The User ID.
* @param int $method COMPLETION_AGGREGATION_* constant.
> * @param array $defaultdata Default data completion.
* @param bool $data Criteria completion status.
> * @return array Data completion retrieved.
* @param bool|null $state Aggregation state.
> */
*/
> public function get_completion_data(int $coursemoduleid, int $userid, array $defaultdata): array {
function completion_cron_aggregate($method, $data, &$state) {
> global $DB;
if ($method == COMPLETION_AGGREGATION_ALL) {
>
if ($data && $state !== false) {
> // MySQL doesn't support FULL JOIN syntax, so we use UNION in the below SQL to help MySQL.
$state = true;
> $sql = "SELECT cmc.*, cmv.coursemoduleid as cmvcoursemoduleid, cmv.userid as cmvuserid
} else {
> FROM {course_modules_completion} cmc
$state = false;
> LEFT JOIN {course_modules_viewed} cmv ON cmc.coursemoduleid = cmv.coursemoduleid AND cmc.userid = cmv.userid
}
> WHERE cmc.coursemoduleid = :cmccoursemoduleid AND cmc.userid = :cmcuserid
} else if ($method == COMPLETION_AGGREGATION_ANY) {
> UNION
if ($data) {
> SELECT cmc2.*, cmv2.coursemoduleid as cmvcoursemoduleid, cmv2.userid as cmvuserid
$state = true;
> FROM {course_modules_completion} cmc2
} else if (!$data && $state === null) {
> RIGHT JOIN {course_modules_viewed} cmv2
$state = false;
> ON cmc2.coursemoduleid = cmv2.coursemoduleid AND cmc2.userid = cmv2.userid
}
> WHERE cmv2.coursemoduleid = :cmvcoursemoduleid AND cmv2.userid = :cmvuserid";
}
>
}
> $data = $DB->get_record_sql($sql, ['cmccoursemoduleid' => $coursemoduleid, 'cmcuserid' => $userid,
> 'cmvcoursemoduleid' => $coursemoduleid, 'cmvuserid' => $userid]);
/**
>
* Aggregate courses completions. This function is called when activity completion status is updated
> if (!$data) {
* for single user. Also when regular completion task runs it aggregates completions for all courses and users.
> $data = $defaultdata;
*
> } else {
* @param int $coursecompletionid Course completion ID to update (if 0 - update for all courses and users)
> if (empty($data->coursemoduleid) && empty($data->userid)) {
* @param bool $mtraceprogress To output debug info
> $data->coursemoduleid = $data->cmvcoursemoduleid;
* @since Moodle 4.0
> $data->userid = $data->cmvuserid;
*/
> }
function aggregate_completions(int $coursecompletionid, bool $mtraceprogress = false) {
> unset($data->cmvcoursemoduleid);
global $DB;
> unset($data->cmvuserid);
>
if (!$coursecompletionid && $mtraceprogress) {
> // When reseting all state in the completion, we need to keep current view state.
mtrace('Aggregating completions');
> $data->viewed = 1;
}
> }
// Save time started.
>
$timestarted = time();
> return (array)$data;
// Grab all criteria and their associated criteria completions.
$sql = "SELECT DISTINCT c.id AS courseid, cr.id AS criteriaid, cco.userid, cr.criteriatype, ccocr.timecompleted
FROM {course_completion_criteria} cr
INNER JOIN {course} c ON cr.course = c.id
INNER JOIN {course_completions} cco ON cco.course = c.id
LEFT JOIN {course_completion_crit_compl} ccocr
ON ccocr.criteriaid = cr.id AND cco.userid = ccocr.userid
WHERE c.enablecompletion = 1
AND cco.timecompleted IS NULL
AND cco.reaggregate > 0";
if ($coursecompletionid) {
$sql .= " AND cco.id = ?";
$param = $coursecompletionid;
} else {
$sql .= " AND cco.reaggregate < ? ORDER BY courseid, cco.userid";
$param = $timestarted;
}
$rs = $DB->get_recordset_sql($sql, [$param]);
// Check if result is empty.
if (!$rs->valid()) {
$rs->close();
return;
}
$currentuser = null;
$currentcourse = null;
$completions = [];
while (1) {
// Grab records for current user/course.
foreach ($rs as $record) {
// If we are still grabbing the same users completions.
if ($record->userid === $currentuser && $record->courseid === $currentcourse) {
$completions[$record->criteriaid] = $record;
} else {
break;
}
}
// Aggregate.
if (!empty($completions)) {
if (!$coursecompletionid && $mtraceprogress) {
mtrace('Aggregating completions for user ' . $currentuser . ' in course ' . $currentcourse);
}
// Get course info object.
$info = new \completion_info((object)['id' => $currentcourse]);
// Setup aggregation.
$overall = $info->get_aggregation_method();
$activity = $info->get_aggregation_method(COMPLETION_CRITERIA_TYPE_ACTIVITY);
$prerequisite = $info->get_aggregation_method(COMPLETION_CRITERIA_TYPE_COURSE);
$role = $info->get_aggregation_method(COMPLETION_CRITERIA_TYPE_ROLE);
$overallstatus = null;
$activitystatus = null;
$prerequisitestatus = null;
$rolestatus = null;
// Get latest timecompleted.
$timecompleted = null;
// Check each of the criteria.
foreach ($completions as $params) {
$timecompleted = max($timecompleted, $params->timecompleted);
$completion = new \completion_criteria_completion((array)$params, false);
// Handle aggregation special cases.
if ($params->criteriatype == COMPLETION_CRITERIA_TYPE_ACTIVITY) {
completion_cron_aggregate($activity, $completion->is_complete(), $activitystatus);
} else if ($params->criteriatype == COMPLETION_CRITERIA_TYPE_COURSE) {
completion_cron_aggregate($prerequisite, $completion->is_complete(), $prerequisitestatus);
} else if ($params->criteriatype == COMPLETION_CRITERIA_TYPE_ROLE) {
completion_cron_aggregate($role, $completion->is_complete(), $rolestatus);
} else {
completion_cron_aggregate($overall, $completion->is_complete(), $overallstatus);
}
}
// Include role criteria aggregation in overall aggregation.
if ($rolestatus !== null) {
completion_cron_aggregate($overall, $rolestatus, $overallstatus);
}
// Include activity criteria aggregation in overall aggregation.
if ($activitystatus !== null) {
completion_cron_aggregate($overall, $activitystatus, $overallstatus);
}
// Include prerequisite criteria aggregation in overall aggregation.
if ($prerequisitestatus !== null) {
completion_cron_aggregate($overall, $prerequisitestatus, $overallstatus);
}
// If aggregation status is true, mark course complete for user.
if ($overallstatus) {
if (!$coursecompletionid && $mtraceprogress) {
mtrace('Marking complete');
}
$ccompletion = new \completion_completion([
'course' => $params->courseid,
'userid' => $params->userid
]);
$ccompletion->mark_complete($timecompleted);
}
}
// If this is the end of the recordset, break the loop.
if (!$rs->valid()) {
$rs->close();
break;
}
// New/next user, update user details, reset completions.
$currentuser = $record->userid;
$currentcourse = $record->courseid;
$completions = [];
$completions[$record->criteriaid] = $record;
}
// Mark all users as aggregated.
if ($coursecompletionid) {
$select = "reaggregate > 0 AND id = ?";
$param = $coursecompletionid;
} else {
$select = "reaggregate > 0 AND reaggregate < ?";
$param = $timestarted;
if (PHPUNIT_TEST) {
// MDL-33320: for instant completions we need aggregate to work in a single run.
$DB->set_field('course_completions', 'reaggregate', $timestarted - 2);
}
}
$DB->set_field_select('course_completions', 'reaggregate', 0, $select, [$param]);
}
