';
if ($cmid == 'staticonly') {
//use static functions only!
return;
}
global $CFG;
if ($cm) {
$this->cm = $cm;
} else if (! $this->cm = get_coursemodule_from_id('assignment', $cmid)) {
error('Course Module ID was incorrect');
}
$this->context = get_context_instance(CONTEXT_MODULE, $this->cm->id);
if ($course) {
$this->course = $course;
} else if ($this->cm->course == $COURSE->id) {
$this->course = $COURSE;
} else if (! $this->course = get_record('course', 'id', $this->cm->course)) {
error('Course is misconfigured');
}
if ($assignment) {
$this->assignment = $assignment;
} else if (! $this->assignment = get_record('assignment', 'id', $this->cm->instance)) {
error('assignment ID was incorrect');
}
$this->assignment->cmidnumber = $this->cm->idnumber; // compatibility with modedit assignment obj
$this->assignment->courseid = $this->course->id; // compatibility with modedit assignment obj
$this->strassignment = get_string('modulename', 'assignment');
$this->strassignments = get_string('modulenameplural', 'assignment');
$this->strsubmissions = get_string('submissions', 'assignment');
$this->strlastmodified = get_string('lastmodified');
$this->pagetitle = strip_tags($this->course->shortname.': '.$this->strassignment.': '.format_string($this->assignment->name,true));
// visibility handled by require_login() with $cm parameter
// get current group only when really needed
/// Set up things for a HTML editor if it's needed
if ($this->usehtmleditor = can_use_html_editor()) {
$this->defaultformat = FORMAT_HTML;
} else {
$this->defaultformat = FORMAT_MOODLE;
}
}
/**
* Display the assignment, used by view.php
*
* This in turn calls the methods producing individual parts of the page
*/
function view() {
$context = get_context_instance(CONTEXT_MODULE,$this->cm->id);
require_capability('mod/assignment:view', $context);
add_to_log($this->course->id, "assignment", "view", "view.php?id={$this->cm->id}",
$this->assignment->id, $this->cm->id);
$this->view_header();
$this->view_intro();
$this->view_dates();
$this->view_feedback();
$this->view_footer();
}
/**
* Display the header and top of a page
*
* (this doesn't change much for assignment types)
* This is used by the view() method to print the header of view.php but
* it can be used on other pages in which case the string to denote the
* page in the navigation trail should be passed as an argument
*
* @param $subpage string Description of subpage to be used in navigation trail
*/
function view_header($subpage='') {
global $CFG;
if ($subpage) {
$navigation = build_navigation($subpage, $this->cm);
} else {
$navigation = build_navigation('', $this->cm);
}
print_header($this->pagetitle, $this->course->fullname, $navigation, '', '',
true, update_module_button($this->cm->id, $this->course->id, $this->strassignment),
navmenu($this->course, $this->cm));
groups_print_activity_menu($this->cm, $CFG->wwwroot . '/mod/assignment/view.php?id=' . $this->cm->id);
echo '
'.$this->submittedlink().'
';
echo '';
}
/**
* Display the assignment intro
*
* This will most likely be extended by assignment type plug-ins
* The default implementation prints the assignment description in a box
*/
function view_intro() {
print_simple_box_start('center', '', '', 0, 'generalbox', 'intro');
$formatoptions = new stdClass;
$formatoptions->noclean = true;
echo format_text($this->assignment->description, $this->assignment->format, $formatoptions);
print_simple_box_end();
}
/**
* Display the assignment dates
*
* Prints the assignment start and end dates in a box.
* This will be suitable for most assignment types
*/
function view_dates() {
if (!$this->assignment->timeavailable && !$this->assignment->timedue) {
return;
}
print_simple_box_start('center', '', '', 0, 'generalbox', 'dates');
echo '
';
if ($this->assignment->timeavailable) {
echo '
'.get_string('availabledate','assignment').':
';
echo '
'.userdate($this->assignment->timeavailable).'
';
}
if ($this->assignment->timedue) {
echo '
'.get_string('duedate','assignment').':
';
echo '
'.userdate($this->assignment->timedue).'
';
}
echo '
';
print_simple_box_end();
}
/**
* Display the bottom and footer of a page
*
* This default method just prints the footer.
* This will be suitable for most assignment types
*/
function view_footer() {
print_footer($this->course);
}
/**
* Display the feedback to the student
*
* This default method prints the teacher picture and name, date when marked,
* grade and teacher submissioncomment.
*
* @param $submission object The submission object or NULL in which case it will be loaded
*/
function view_feedback($submission=NULL) {
global $USER, $CFG;
require_once($CFG->libdir.'/gradelib.php');
if (!$submission) { /// Get submission for this assignment
$submission = $this->get_submission($USER->id, false);
}
// Check the user can submit
$cansubmit = has_capability('mod/assignment:submit', $this->context, $USER->id, false);
// If not then check if ther user still has the view cap and has a previous submission
$cansubmit = $cansubmit || (!empty($submission) && has_capability('mod/assignment:view', $this->context, $USER->id, false));
if (!$cansubmit) {
// can not submit assignments -> no feedback
return;
}
$grading_info = grade_get_grades($this->course->id, 'mod', 'assignment', $this->assignment->id, $USER->id);
$item = $grading_info->items[0];
$grade = $item->grades[$USER->id];
if ($grade->hidden or $grade->grade === false) { // hidden or error
return;
}
if ($grade->grade === null and empty($grade->str_feedback)) { /// Nothing to show yet
return;
}
$graded_date = $grade->dategraded;
$graded_by = $grade->usermodified;
/// We need the teacher info
if (!$teacher = get_record('user', 'id', $graded_by)) {
error('Could not find the teacher');
}
/// Print the feedback
print_heading(get_string('feedbackfromteacher', 'assignment', $this->course->teacher)); // TODO: fix teacher string
echo '
';
echo '
';
echo '
';
if ($teacher) {
print_user_picture($teacher, $this->course->id, $teacher->picture);
}
echo '
';
}
/**
* Returns a link with info about the state of the assignment submissions
*
* This is used by view_header to put this link at the top right of the page.
* For teachers it gives the number of submitted assignments with a link
* For students it gives the time of their submission.
* This will be suitable for most assignment types.
* @param bool $allgroup print all groups info if user can access all groups, suitable for index.php
* @return string
*/
function submittedlink($allgroups=false) {
global $USER;
$submitted = '';
$context = get_context_instance(CONTEXT_MODULE,$this->cm->id);
if (has_capability('mod/assignment:grade', $context)) {
if ($allgroups and has_capability('moodle/site:accessallgroups', $context)) {
$group = 0;
} else {
$group = groups_get_activity_group($this->cm);
}
if ($count = $this->count_real_submissions($group)) {
$submitted = ''.
get_string('viewsubmissions', 'assignment', $count).'';
} else {
$submitted = ''.
get_string('noattempts', 'assignment').'';
}
} else {
if (!empty($USER->id)) {
if ($submission = $this->get_submission($USER->id)) {
if ($submission->timemodified) {
if ($submission->timemodified <= $this->assignment->timedue || empty($this->assignment->timedue)) {
$submitted = ''.userdate($submission->timemodified).'';
} else {
$submitted = ''.userdate($submission->timemodified).'';
}
}
}
}
}
return $submitted;
}
function setup_elements(&$mform) {
}
/**
* Create a new assignment activity
*
* Given an object containing all the necessary data,
* (defined by the form in mod.html) this function
* will create a new instance and return the id number
* of the new instance.
* The due data is added to the calendar
* This is common to all assignment types.
*
* @param $assignment object The data from the form on mod.html
* @return int The id of the assignment
*/
function add_instance($assignment) {
global $COURSE;
$assignment->timemodified = time();
$assignment->courseid = $assignment->course;
if ($returnid = insert_record("assignment", $assignment)) {
$assignment->id = $returnid;
if ($assignment->timedue) {
$event = new object();
$event->name = $assignment->name;
$event->description = $assignment->description;
$event->courseid = $assignment->course;
$event->groupid = 0;
$event->userid = 0;
$event->modulename = 'assignment';
$event->instance = $returnid;
$event->eventtype = 'due';
$event->timestart = $assignment->timedue;
$event->timeduration = 0;
add_event($event);
}
$assignment = stripslashes_recursive($assignment);
assignment_grade_item_update($assignment);
}
return $returnid;
}
/**
* Deletes an assignment activity
*
* Deletes all database records, files and calendar events for this assignment.
* @param $assignment object The assignment to be deleted
* @return boolean False indicates error
*/
function delete_instance($assignment) {
global $CFG;
$assignment->courseid = $assignment->course;
$result = true;
if (! delete_records('assignment_submissions', 'assignment', $assignment->id)) {
$result = false;
}
if (! delete_records('assignment', 'id', $assignment->id)) {
$result = false;
}
if (! delete_records('event', 'modulename', 'assignment', 'instance', $assignment->id)) {
$result = false;
}
// delete file area with all attachments - ignore errors
require_once($CFG->libdir.'/filelib.php');
fulldelete($CFG->dataroot.'/'.$assignment->course.'/'.$CFG->moddata.'/assignment/'.$assignment->id);
assignment_grade_item_delete($assignment);
return $result;
}
/**
* Updates a new assignment activity
*
* Given an object containing all the necessary data,
* (defined by the form in mod.html) this function
* will update the assignment instance and return the id number
* The due date is updated in the calendar
* This is common to all assignment types.
*
* @param $assignment object The data from the form on mod.html
* @return bool success
*/
function update_instance($assignment) {
global $COURSE;
$assignment->timemodified = time();
$assignment->id = $assignment->instance;
$assignment->courseid = $assignment->course;
if (!update_record('assignment', $assignment)) {
return false;
}
if ($assignment->timedue) {
$event = new object();
if ($event->id = get_field('event', 'id', 'modulename', 'assignment', 'instance', $assignment->id)) {
$event->name = $assignment->name;
$event->description = $assignment->description;
$event->timestart = $assignment->timedue;
update_event($event);
} else {
$event = new object();
$event->name = $assignment->name;
$event->description = $assignment->description;
$event->courseid = $assignment->course;
$event->groupid = 0;
$event->userid = 0;
$event->modulename = 'assignment';
$event->instance = $assignment->id;
$event->eventtype = 'due';
$event->timestart = $assignment->timedue;
$event->timeduration = 0;
add_event($event);
}
} else {
delete_records('event', 'modulename', 'assignment', 'instance', $assignment->id);
}
// get existing grade item
$assignment = stripslashes_recursive($assignment);
assignment_grade_item_update($assignment);
return true;
}
/**
* Update grade item for this submission.
*/
function update_grade($submission) {
// MDL-9085 BOBPUFFER 2010-10-07 HACK TO ALLOW SAVING OF FLOATING POINT GRADE INPUT FROM TEXT FIELD IN ASSIGNMENT INTERFACE
// assignment_update_grades($this->assignment, $submission->userid);
assignment_update_grades($this->assignment, $submission->userid, $submission); // END OF HACK BOBPUFFER
}
/**
* Top-level function for handling of submissions called by submissions.php
*
* This is for handling the teacher interaction with the grading interface
* This should be suitable for most assignment types.
*
* @param $mode string Specifies the kind of teacher interaction taking place
*/
function submissions($mode) {
///The main switch is changed to facilitate
///1) Batch fast grading
///2) Skip to the next one on the popup
///3) Save and Skip to the next one on the popup
//make user global so we can use the id
global $USER;
$mailinfo = optional_param('mailinfo', null, PARAM_BOOL);
if (is_null($mailinfo)) {
$mailinfo = get_user_preferences('assignment_mailinfo', 0);
} else {
set_user_preference('assignment_mailinfo', $mailinfo);
}
switch ($mode) {
case 'grade': // We are in a popup window grading
// MDL-9085 BOBPUFFER 2010-10-07 HACK TO ALLOW TEXT INPUT OF GRADE
// if ($submission = $this->process_feedback()) {
$submission = $this->process_feedback();
if ((is_numeric($submission->grade) && !(floatval($submission->grade) > floatval($this->assignment->grade))) || trim($submission->grade) == null) {
//IE needs proper header with encoding
print_header(get_string('feedback', 'assignment').':'.format_string($this->assignment->name));
print_heading(get_string('changessaved'));
print $this->update_main_listing($submission);
} else {
echo '';
} // END OF HACK BOBPUFFER
close_window();
break;
case 'single': // We are in a popup window displaying submission
$this->display_submission();
break;
case 'all': // Main window, display everything
$this->display_submissions();
break;
case 'fastgrade':
///do the fast grading stuff - this process should work for all 3 subclasses
$grading = false;
$commenting = false;
$col = false;
if (isset($_POST['submissioncomment'])) {
$col = 'submissioncomment';
$commenting = true;
}
if (isset($_POST['menu'])) {
$col = 'menu';
$grading = true;
}
if (!$col) {
//both submissioncomment and grade columns collapsed..
$this->display_submissions();
break;
}
foreach ($_POST[$col] as $id => $unusedvalue){
$id = (int)$id; //clean parameter name
$this->process_outcomes($id);
if (!$submission = $this->get_submission($id)) {
$submission = $this->prepare_new_submission($id);
$newsubmission = true;
} else {
$newsubmission = false;
}
unset($submission->data1); // Don't need to update this.
unset($submission->data2); // Don't need to update this.
//for fast grade, we need to check if any changes take place
$updatedb = false;
if ($grading) {
$grade = $_POST['menu'][$id];
$updatedb = $updatedb || ($submission->grade != $grade);
$submission->grade = $grade;
} else {
if (!$newsubmission) {
unset($submission->grade); // Don't need to update this.
}
}
if ($commenting) {
$commentvalue = trim($_POST['submissioncomment'][$id]);
$updatedb = $updatedb || ($submission->submissioncomment != stripslashes($commentvalue));
$submission->submissioncomment = $commentvalue;
} else {
unset($submission->submissioncomment); // Don't need to update this.
}
$submission->teacher = $USER->id;
if ($updatedb) {
$submission->mailed = (int)(!$mailinfo);
}
$submission->timemarked = time();
//if it is not an update, we don't change the last modified time etc.
//this will also not write into database if no submissioncomment and grade is entered.
if ($updatedb){
// MDL-9085 BOBPUFFER 2010-10-07 HACK TO PROCESS TEXT INPUT FIELDS
// if ($newsubmission) {
if ((is_numeric($submission->grade) && !(floatval($submission->grade) > floatval($this->assignment->grade))) || trim($submission->grade) == "") {
if ($newsubmission) { // END OF HACK BOBPUFFER
if (!isset($submission->submissioncomment)) {
$submission->submissioncomment = '';
}
if (!$sid = insert_record('assignment_submissions', $submission)) {
return false;
}
$submission->id = $sid;
} else {
if (!update_record('assignment_submissions', $submission)) {
return false;
}
}
} else {
echo '';
continue;
} // END OF HACK BOBPUFFER
// triger grade event
$this->update_grade($submission);
//add to log only if updating
add_to_log($this->course->id, 'assignment', 'update grades',
'submissions.php?id='.$this->assignment->id.'&user='.$submission->userid,
$submission->userid, $this->cm->id);
}
}
$message = notify(get_string('changessaved'), 'notifysuccess', 'center', true);
$this->display_submissions($message);
break;
case 'next':
/// We are currently in pop up, but we want to skip to next one without saving.
/// This turns out to be similar to a single case
/// The URL used is for the next submission.
$this->display_submission();
break;
case 'saveandnext':
///We are in pop up. save the current one and go to the next one.
//first we save the current changes
if ($submission = $this->process_feedback()) {
//print_heading(get_string('changessaved'));
$extra_javascript = $this->update_main_listing($submission);
}
//then we display the next submission
$this->display_submission($extra_javascript);
break;
default:
echo "something seriously is wrong!!";
break;
}
}
/**
* Helper method updating the listing on the main script from popup using javascript
*
* @param $submission object The submission whose data is to be updated on the main page
*/
function update_main_listing($submission) {
global $SESSION, $CFG;
$output = '';
$perpage = get_user_preferences('assignment_perpage', 10);
$quickgrade = get_user_preferences('assignment_quickgrade', 0);
/// Run some Javascript to try and update the parent page
$output .= '";
return $output;
}
/**
* Return a grade in user-friendly form, whether it's a scale or not
*
* @param $grade
* @return string User-friendly representation of grade
*/
function display_grade($grade) {
static $scalegrades = array(); // Cache scales for each assignment - they might have different scales!!
if ($this->assignment->grade >= 0) { // Normal number
if ($grade == -1) {
return '-';
} else {
return $grade.' / '.$this->assignment->grade;
}
} else { // Scale
if (empty($scalegrades[$this->assignment->id])) {
if ($scale = get_record('scale', 'id', -($this->assignment->grade))) {
$scalegrades[$this->assignment->id] = make_menu_from_list($scale->scale);
} else {
return '-';
}
}
if (isset($scalegrades[$this->assignment->id][$grade])) {
return $scalegrades[$this->assignment->id][$grade];
}
return '-';
}
}
/**
* Display a single submission, ready for grading on a popup window
*
* This default method prints the teacher info and submissioncomment box at the top and
* the student info and submission at the bottom.
* This method also fetches the necessary data in order to be able to
* provide a "Next submission" button.
* Calls preprocess_submission() to give assignment type plug-ins a chance
* to process submissions before they are graded
* This method gets its arguments from the page parameters userid and offset
*/
function display_submission($extra_javascript = '') {
global $CFG;
require_once($CFG->libdir.'/gradelib.php');
require_once($CFG->libdir.'/tablelib.php');
$userid = required_param('userid', PARAM_INT);
$offset = required_param('offset', PARAM_INT);//offset for where to start looking for student.
if (!$user = get_record('user', 'id', $userid)) {
error('No such user!');
}
if (!$submission = $this->get_submission($user->id)) {
$submission = $this->prepare_new_submission($userid);
}
if ($submission->timemodified > $submission->timemarked) {
$subtype = 'assignmentnew';
} else {
$subtype = 'assignmentold';
}
$grading_info = grade_get_grades($this->course->id, 'mod', 'assignment', $this->assignment->id, array($user->id));
$disabled = $grading_info->items[0]->grades[$userid]->locked || $grading_info->items[0]->grades[$userid]->overridden;
// MDL-9085 BOBPUFFER 2010-10-07 HACK TO ALLOW RETRIEVING OF FLOATING POINT GRADES FROM GRADEBOOK TO BE DISPLAYED AND EDITED IN ASSIGNMENT INTERFACE
if ($grading_info->items[0]->grades[$user->id]->str_grade <> null and floatval($grading_info->items[0]->grades[$user->id]->str_grade) <> floatval($submission->grade)) {
$submission->grade = s($grading_info->items[0]->grades[$user->id]->str_grade);
} // END OF HACK BOBPUFFER
/// construct SQL, using current offset to find the data of the next student
$course = $this->course;
$assignment = $this->assignment;
$cm = $this->cm;
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
/// Get all ppl that can submit assignments
$currentgroup = groups_get_activity_group($cm);
if (!empty($CFG->gradebookroles)) {
$gradebookroles = explode(",", $CFG->gradebookroles);
} else {
$gradebookroles = '';
}
$users = get_role_users($gradebookroles, $context, true, '', 'u.lastname ASC', true, $currentgroup);
if ($users) {
$users = array_keys($users);
// if groupmembersonly used, remove users who are not in any group
if (!empty($CFG->enablegroupings) and $cm->groupmembersonly) {
if ($groupingusers = groups_get_grouping_members($cm->groupingid, 'u.id', 'u.id')) {
$users = array_intersect($users, array_keys($groupingusers));
}
}
}
$nextid = 0;
if ($users) {
$select = 'SELECT u.id, u.firstname, u.lastname, u.picture, u.imagealt,
s.id AS submissionid, s.grade, s.submissioncomment,
s.timemodified, s.timemarked,
COALESCE(SIGN(SIGN(s.timemarked) + SIGN(s.timemarked - s.timemodified)), 0) AS status ';
$sql = 'FROM '.$CFG->prefix.'user u '.
'LEFT JOIN '.$CFG->prefix.'assignment_submissions s ON u.id = s.userid
AND s.assignment = '.$this->assignment->id.' '.
'WHERE u.id IN ('.implode(',', $users).') ';
if ($sort = flexible_table::get_sql_sort('mod-assignment-submissions')) {
$sort = 'ORDER BY '.$sort.' ';
}
if (($auser = get_records_sql($select.$sql.$sort, $offset+1, 1)) !== false) {
$nextuser = array_shift($auser);
/// Calculate user status
$nextuser->status = ($nextuser->timemarked > 0) && ($nextuser->timemarked >= $nextuser->timemodified);
$nextid = $nextuser->id;
}
}
print_header(get_string('feedback', 'assignment').':'.fullname($user, true).':'.format_string($this->assignment->name));
/// Print any extra javascript needed for saveandnext
echo $extra_javascript;
///SOme javascript to help with setting up >.>
echo ''."\n";
echo '
';
}
}
$userlink = '' . fullname($auser, has_capability('moodle/site:viewfullnames', $this->context)) . '';
$row = array($picture, $userlink, $grade, $comment, $studentmodified, $teachermodified, $status, $finalgrade);
if ($uses_outcomes) {
$row[] = $outcomes;
}
$table->add_data($row);
}
}
/// Print quickgrade form around the table
if ($quickgrade){
echo '';
}
/// End of fast grading form
/// Mini form for setting user preference
echo '
';
echo '
';
///End of mini form
print_footer($this->course);
}
/**
* Process teacher feedback submission
*
* This is called by submissions() when a grading even has taken place.
* It gets its data from the submitted form.
* @return object The updated submission object
*/
function process_feedback() {
global $CFG, $USER;
require_once($CFG->libdir.'/gradelib.php');
if (!$feedback = data_submitted() or !confirm_sesskey()) { // No incoming data?
return false;
}
///For save and next, we need to know the userid to save, and the userid to go
///We use a new hidden field in the form, and set it to -1. If it's set, we use this
///as the userid to store
if ((int)$feedback->saveuserid !== -1){
$feedback->userid = $feedback->saveuserid;
}
if (!empty($feedback->cancel)) { // User hit cancel button
return false;
}
$grading_info = grade_get_grades($this->course->id, 'mod', 'assignment', $this->assignment->id, $feedback->userid);
// store outcomes if needed
$this->process_outcomes($feedback->userid);
$submission = $this->get_submission($feedback->userid, true); // Get or make one
if (!$grading_info->items[0]->grades[$feedback->userid]->locked and
!$grading_info->items[0]->grades[$feedback->userid]->overridden) {
$submission->grade = $feedback->grade;
$submission->submissioncomment = $feedback->submissioncomment;
$submission->format = $feedback->format;
$submission->teacher = $USER->id;
$mailinfo = get_user_preferences('assignment_mailinfo', 0);
if (!$mailinfo) {
$submission->mailed = 1; // treat as already mailed
} else {
$submission->mailed = 0; // Make sure mail goes out (again, even)
}
$submission->timemarked = time();
unset($submission->data1); // Don't need to update this.
unset($submission->data2); // Don't need to update this.
if (empty($submission->timemodified)) { // eg for offline assignments
// $submission->timemodified = time();
}
if (! update_record('assignment_submissions', $submission)) {
return false;
}
// triger grade event
$this->update_grade($submission);
add_to_log($this->course->id, 'assignment', 'update grades',
'submissions.php?id='.$this->assignment->id.'&user='.$feedback->userid, $feedback->userid, $this->cm->id);
}
return $submission;
}
function process_outcomes($userid) {
global $CFG, $USER;
if (empty($CFG->enableoutcomes)) {
return;
}
require_once($CFG->libdir.'/gradelib.php');
if (!$formdata = data_submitted() or !confirm_sesskey()) {
return;
}
$data = array();
$grading_info = grade_get_grades($this->course->id, 'mod', 'assignment', $this->assignment->id, $userid);
if (!empty($grading_info->outcomes)) {
foreach($grading_info->outcomes as $n=>$old) {
$name = 'outcome_'.$n;
if (isset($formdata->{$name}[$userid]) and $old->grades[$userid]->grade != $formdata->{$name}[$userid]) {
$data[$n] = $formdata->{$name}[$userid];
}
}
}
if (count($data) > 0) {
grade_update_outcomes('mod/assignment', $this->course->id, 'mod', 'assignment', $this->assignment->id, $userid, $data);
}
}
/**
* Load the submission object for a particular user
*
* @param $userid int The id of the user whose submission we want or 0 in which case USER->id is used
* @param $createnew boolean optional Defaults to false. If set to true a new submission object will be created in the database
* @param bool $teachermodified student submission set if false
* @return object The submission
*/
function get_submission($userid=0, $createnew=false, $teachermodified=false) {
global $USER;
if (empty($userid)) {
$userid = $USER->id;
}
$submission = get_record('assignment_submissions', 'assignment', $this->assignment->id, 'userid', $userid);
if ($submission || !$createnew) {
return $submission;
}
$newsubmission = $this->prepare_new_submission($userid, $teachermodified);
if (!insert_record("assignment_submissions", $newsubmission)) {
error("Could not insert a new empty submission");
}
return get_record('assignment_submissions', 'assignment', $this->assignment->id, 'userid', $userid);
}
/**
* Instantiates a new submission object for a given user
*
* Sets the assignment, userid and times, everything else is set to default values.
* @param $userid int The userid for which we want a submission object
* @param bool $teachermodified student submission set if false
* @return object The submission
*/
function prepare_new_submission($userid, $teachermodified=false) {
$submission = new Object;
$submission->assignment = $this->assignment->id;
$submission->userid = $userid;
//$submission->timecreated = time();
$submission->timecreated = '';
// teachers should not be modifying modified date, except offline assignments
if ($teachermodified) {
$submission->timemodified = 0;
} else {
$submission->timemodified = $submission->timecreated;
}
$submission->numfiles = 0;
$submission->data1 = '';
$submission->data2 = '';
$submission->grade = -1;
$submission->submissioncomment = '';
$submission->format = 0;
$submission->teacher = 0;
$submission->timemarked = 0;
$submission->mailed = 0;
return $submission;
}
/**
* Return all assignment submissions by ENROLLED students (even empty)
*
* @param $sort string optional field names for the ORDER BY in the sql query
* @param $dir string optional specifying the sort direction, defaults to DESC
* @return array The submission objects indexed by id
*/
function get_submissions($sort='', $dir='DESC') {
return assignment_get_all_submissions($this->assignment, $sort, $dir);
}
/**
* Counts all real assignment submissions by ENROLLED students (not empty ones)
*
* @param $groupid int optional If nonzero then count is restricted to this group
* @return int The number of submissions
*/
function count_real_submissions($groupid=0) {
return assignment_count_real_submissions($this->cm, $groupid);
}
/**
* Alerts teachers by email of new or changed assignments that need grading
*
* First checks whether the option to email teachers is set for this assignment.
* Sends an email to ALL teachers in the course (or in the group if using separate groups).
* Uses the methods email_teachers_text() and email_teachers_html() to construct the content.
* @param $submission object The submission that has changed
*/
function email_teachers($submission) {
global $CFG;
if (empty($this->assignment->emailteachers)) { // No need to do anything
return;
}
$user = get_record('user', 'id', $submission->userid);
if ($teachers = $this->get_graders($user)) {
$strassignments = get_string('modulenameplural', 'assignment');
$strassignment = get_string('modulename', 'assignment');
$strsubmitted = get_string('submitted', 'assignment');
foreach ($teachers as $teacher) {
$info = new object();
$info->username = fullname($user, true);
$info->assignment = format_string($this->assignment->name,true);
$info->url = $CFG->wwwroot.'/mod/assignment/submissions.php?id='.$this->cm->id;
$postsubject = $strsubmitted.': '.$info->username.' -> '.$this->assignment->name;
$posttext = $this->email_teachers_text($info);
$posthtml = ($teacher->mailformat == 1) ? $this->email_teachers_html($info) : '';
@email_to_user($teacher, $user, $postsubject, $posttext, $posthtml); // If it fails, oh well, too bad.
}
}
}
/**
* Returns a list of teachers that should be grading given submission
*/
function get_graders($user) {
//potential graders
$potgraders = get_users_by_capability($this->context, 'mod/assignment:grade', '', '', '', '', '', '', false, false);
$graders = array();
if (groups_get_activity_groupmode($this->cm) == SEPARATEGROUPS) { // Separate groups are being used
if ($groups = groups_get_all_groups($this->course->id, $user->id)) { // Try to find all groups
foreach ($groups as $group) {
foreach ($potgraders as $t) {
if ($t->id == $user->id) {
continue; // do not send self
}
if (groups_is_member($group->id, $t->id)) {
$graders[$t->id] = $t;
}
}
}
} else {
// user not in group, try to find graders without group
foreach ($potgraders as $t) {
if ($t->id == $user->id) {
continue; // do not send self
}
if (!groups_get_all_groups($this->course->id, $t->id)) { //ugly hack
$graders[$t->id] = $t;
}
}
}
} else {
foreach ($potgraders as $t) {
if ($t->id == $user->id) {
continue; // do not send self
}
$graders[$t->id] = $t;
}
}
return $graders;
}
/**
* Creates the text content for emails to teachers
*
* @param $info object The info used by the 'emailteachermail' language string
* @return string
*/
function email_teachers_text($info) {
$posttext = format_string($this->course->shortname).' -> '.$this->strassignments.' -> '.
format_string($this->assignment->name)."\n";
$posttext .= '---------------------------------------------------------------------'."\n";
$posttext .= get_string("emailteachermail", "assignment", $info)."\n";
$posttext .= "\n---------------------------------------------------------------------\n";
return $posttext;
}
/**
* Creates the html content for emails to teachers
*
* @param $info object The info used by the 'emailteachermailhtml' language string
* @return string
*/
function email_teachers_html($info) {
global $CFG;
$posthtml = '
';
$posthtml .= '';
return $posthtml;
}
/**
* Produces a list of links to the files uploaded by a user
*
* @param $userid int optional id of the user. If 0 then $USER->id is used.
* @param $return boolean optional defaults to false. If true the list is returned rather than printed
* @return string optional
*/
function print_user_files($userid=0, $return=false) {
global $CFG, $USER;
if (!$userid) {
if (!isloggedin()) {
return '';
}
$userid = $USER->id;
}
$filearea = $this->file_area_name($userid);
$output = '';
if ($basedir = $this->file_area($userid)) {
if ($files = get_directory_list($basedir)) {
require_once($CFG->libdir.'/filelib.php');
foreach ($files as $key => $file) {
$icon = mimeinfo('icon', $file);
$ffurl = get_file_url("$filearea/$file", array('forcedownload'=>1));
$output .= ''.
''.$file.' ';
}
}
}
$output = '
'.$output.'
';
if ($return) {
return $output;
}
echo $output;
}
/**
* Count the files uploaded by a given user
*
* @param $userid int The user id
* @return int
*/
function count_user_files($userid) {
global $CFG;
$filearea = $this->file_area_name($userid);
if ( is_dir($CFG->dataroot.'/'.$filearea) && $basedir = $this->file_area($userid)) {
if ($files = get_directory_list($basedir)) {
return count($files);
}
}
return 0;
}
/**
* Creates a directory file name, suitable for make_upload_directory()
*
* @param $userid int The user id
* @return string path to file area
*/
function file_area_name($userid) {
global $CFG;
return $this->course->id.'/'.$CFG->moddata.'/assignment/'.$this->assignment->id.'/'.$userid;
}
/**
* Makes an upload directory
*
* @param $userid int The user id
* @return string path to file area.
*/
function file_area($userid) {
return make_upload_directory( $this->file_area_name($userid) );
}
/**
* Returns true if the student is allowed to submit
*
* Checks that the assignment has started and, if the option to prevent late
* submissions is set, also checks that the assignment has not yet closed.
* @return boolean
*/
function isopen() {
$time = time();
if ($this->assignment->preventlate && $this->assignment->timedue) {
return ($this->assignment->timeavailable <= $time && $time <= $this->assignment->timedue);
} else {
return ($this->assignment->timeavailable <= $time);
}
}
/**
* Return true if is set description is hidden till available date
*
* This is needed by calendar so that hidden descriptions do not
* come up in upcoming events.
*
* Check that description is hidden till available date
* By default return false
* Assignments types should implement this method if needed
* @return boolen
*/
function description_is_hidden() {
return false;
}
/**
* Return an outline of the user's interaction with the assignment
*
* The default method prints the grade and timemodified
* @param $grade object
* @return object with properties ->info and ->time
*/
function user_outline($grade) {
$result = new object();
$result->info = get_string('grade').': '.$grade->str_long_grade;
$result->time = $grade->dategraded;
return $result;
}
/**
* Print complete information about the user's interaction with the assignment
*
* @param $user object
*/
function user_complete($user, $grade=null) {
if ($grade) {
echo '
';
}
}
if ($submission = $this->get_submission($user->id)) {
if ($basedir = $this->file_area($user->id)) {
if ($files = get_directory_list($basedir)) {
$countfiles = count($files)." ".get_string("uploadedfiles", "assignment");
foreach ($files as $file) {
$countfiles .= "; $file";
}
}
}
print_simple_box_start();
echo get_string("lastmodified").": ";
echo userdate($submission->timemodified);
echo $this->display_lateness($submission->timemodified);
$this->print_user_files($user->id);
echo ' ';
$this->view_feedback($submission);
print_simple_box_end();
} else {
print_string("notsubmittedyet", "assignment");
}
}
/**
* Return a string indicating how late a submission is
*
* @param $timesubmitted int
* @return string
*/
function display_lateness($timesubmitted) {
return assignment_display_lateness($timesubmitted, $this->assignment->timedue);
}
/**
* Empty method stub for all delete actions.
*/
function delete() {
//nothing by default
redirect('view.php?id='.$this->cm->id);
}
/**
* Empty custom feedback grading form.
*/
function custom_feedbackform($submission, $return=false) {
//nothing by default
return '';
}
/**
* Add a get_coursemodule_info function in case any assignment type wants to add 'extra' information
* for the course (see resource).
*
* Given a course_module object, this function returns any "extra" information that may be needed
* when printing this activity in a course listing. See get_array_of_activities() in course/lib.php.
*
* @param $coursemodule object The coursemodule object (record).
* @return object An object on information that the coures will know about (most noticeably, an icon).
*
*/
function get_coursemodule_info($coursemodule) {
return false;
}
/**
* Plugin cron method - do not use $this here, create new assignment instances if needed.
* @return void
*/
function cron() {
//no plugin cron by default - override if needed
}
/**
* Reset all submissions
*/
function reset_userdata($data) {
global $CFG;
require_once($CFG->libdir.'/filelib.php');
if (!count_records('assignment', 'course', $data->courseid, 'assignmenttype', $this->type)) {
return array(); // no assignments of this type present
}
$componentstr = get_string('modulenameplural', 'assignment');
$status = array();
$typestr = get_string('type'.$this->type, 'assignment');
// ugly hack to support pluggable assignment type titles...
if($typestr === '[[type'.$this->type.']]'){
$typestr = get_string('type'.$this->type, 'assignment_'.$this->type);
}
if (!empty($data->reset_assignment_submissions)) {
$assignmentssql = "SELECT a.id
FROM {$CFG->prefix}assignment a
WHERE a.course={$data->courseid} AND a.assignmenttype='{$this->type}'";
delete_records_select('assignment_submissions', "assignment IN ($assignmentssql)");
if ($assignments = get_records_sql($assignmentssql)) {
foreach ($assignments as $assignmentid=>$unused) {
fulldelete($CFG->dataroot.'/'.$data->courseid.'/moddata/assignment/'.$assignmentid);
}
}
$status[] = array('component'=>$componentstr, 'item'=>get_string('deleteallsubmissions','assignment').': '.$typestr, 'error'=>false);
if (empty($data->reset_gradebook_grades)) {
// remove all grades from gradebook
assignment_reset_gradebook($data->courseid, $this->type);
}
}
/// updating dates - shift may be negative too
if ($data->timeshift) {
shift_course_mod_dates('assignment', array('timedue', 'timeavailable'), $data->timeshift, $data->courseid);
$status[] = array('component'=>$componentstr, 'item'=>get_string('datechanged').': '.$typestr, 'error'=>false);
}
return $status;
}
/**
* base implementation for backing up subtype specific information
* for one single module
*
* @param filehandle $bf file handle for xml file to write to
* @param mixed $preferences the complete backup preference object
*
* @return boolean
*
* @static
*/
function backup_one_mod($bf, $preferences, $assignment) {
return true;
}
/**
* base implementation for backing up subtype specific information
* for one single submission
*
* @param filehandle $bf file handle for xml file to write to
* @param mixed $preferences the complete backup preference object
* @param object $submission the assignment submission db record
*
* @return boolean
*
* @static
*/
function backup_one_submission($bf, $preferences, $assignment, $submission) {
return true;
}
/**
* base implementation for restoring subtype specific information
* for one single module
*
* @param array $info the array representing the xml
* @param object $restore the restore preferences
*
* @return boolean
*
* @static
*/
function restore_one_mod($info, $restore, $assignment) {
return true;
}
/**
* base implementation for restoring subtype specific information
* for one single submission
*
* @param object $submission the newly created submission
* @param array $info the array representing the xml
* @param object $restore the restore preferences
*
* @return boolean
*
* @static
*/
function restore_one_submission($info, $restore, $assignment, $submission) {
return true;
}
} ////// End of the assignment_base class
/// OTHER STANDARD FUNCTIONS ////////////////////////////////////////////////////////
/**
* Deletes an assignment instance
*
* This is done by calling the delete_instance() method of the assignment type class
*/
function assignment_delete_instance($id){
global $CFG;
if (! $assignment = get_record('assignment', 'id', $id)) {
return false;
}
// fall back to base class if plugin missing
$classfile = "$CFG->dirroot/mod/assignment/type/$assignment->assignmenttype/assignment.class.php";
if (file_exists($classfile)) {
require_once($classfile);
$assignmentclass = "assignment_$assignment->assignmenttype";
} else {
debugging("Missing assignment plug-in: {$assignment->assignmenttype}. Using base class for deleting instead.");
$assignmentclass = "assignment_base";
}
$ass = new $assignmentclass();
return $ass->delete_instance($assignment);
}
/**
* Updates an assignment instance
*
* This is done by calling the update_instance() method of the assignment type class
*/
function assignment_update_instance($assignment){
global $CFG;
$assignment->assignmenttype = clean_param($assignment->assignmenttype, PARAM_SAFEDIR);
require_once("$CFG->dirroot/mod/assignment/type/$assignment->assignmenttype/assignment.class.php");
$assignmentclass = "assignment_$assignment->assignmenttype";
$ass = new $assignmentclass();
return $ass->update_instance($assignment);
}
/**
* Adds an assignment instance
*
* This is done by calling the add_instance() method of the assignment type class
*/
function assignment_add_instance($assignment) {
global $CFG;
$assignment->assignmenttype = clean_param($assignment->assignmenttype, PARAM_SAFEDIR);
require_once("$CFG->dirroot/mod/assignment/type/$assignment->assignmenttype/assignment.class.php");
$assignmentclass = "assignment_$assignment->assignmenttype";
$ass = new $assignmentclass();
return $ass->add_instance($assignment);
}
/**
* Returns an outline of a user interaction with an assignment
*
* This is done by calling the user_outline() method of the assignment type class
*/
function assignment_user_outline($course, $user, $mod, $assignment) {
global $CFG;
require_once("$CFG->libdir/gradelib.php");
require_once("$CFG->dirroot/mod/assignment/type/$assignment->assignmenttype/assignment.class.php");
$assignmentclass = "assignment_$assignment->assignmenttype";
$ass = new $assignmentclass($mod->id, $assignment, $mod, $course);
$grades = grade_get_grades($course->id, 'mod', 'assignment', $assignment->id, $user->id);
if (!empty($grades->items[0]->grades)) {
return $ass->user_outline(reset($grades->items[0]->grades));
} else {
return null;
}
}
/**
* Prints the complete info about a user's interaction with an assignment
*
* This is done by calling the user_complete() method of the assignment type class
*/
function assignment_user_complete($course, $user, $mod, $assignment) {
global $CFG;
require_once("$CFG->libdir/gradelib.php");
require_once("$CFG->dirroot/mod/assignment/type/$assignment->assignmenttype/assignment.class.php");
$assignmentclass = "assignment_$assignment->assignmenttype";
$ass = new $assignmentclass($mod->id, $assignment, $mod, $course);
$grades = grade_get_grades($course->id, 'mod', 'assignment', $assignment->id, $user->id);
if (empty($grades->items[0]->grades)) {
$grade = false;
} else {
$grade = reset($grades->items[0]->grades);
}
return $ass->user_complete($user, $grade);
}
/**
* Function to be run periodically according to the moodle cron
*
* Finds all assignment notifications that have yet to be mailed out, and mails them
*/
function assignment_cron () {
global $CFG, $USER;
/// first execute all crons in plugins
if ($plugins = get_list_of_plugins('mod/assignment/type')) {
foreach ($plugins as $plugin) {
require_once("$CFG->dirroot/mod/assignment/type/$plugin/assignment.class.php");
$assignmentclass = "assignment_$plugin";
$ass = new $assignmentclass();
$ass->cron();
}
}
/// Notices older than 1 day will not be mailed. This is to avoid the problem where
/// cron has not been running for a long time, and then suddenly people are flooded
/// with mail from the past few weeks or months
$timenow = time();
$endtime = $timenow - $CFG->maxeditingtime;
$starttime = $endtime - 24 * 3600; /// One day earlier
if ($submissions = assignment_get_unmailed_submissions($starttime, $endtime)) {
$realuser = clone($USER);
foreach ($submissions as $key => $submission) {
if (! set_field("assignment_submissions", "mailed", "1", "id", "$submission->id")) {
echo "Could not update the mailed field for id $submission->id. Not mailed.\n";
unset($submissions[$key]);
}
}
$timenow = time();
foreach ($submissions as $submission) {
echo "Processing assignment submission $submission->id\n";
if (! $user = get_record("user", "id", "$submission->userid")) {
echo "Could not find user $post->userid\n";
continue;
}
if (! $course = get_record("course", "id", "$submission->course")) {
echo "Could not find course $submission->course\n";
continue;
}
/// Override the language and timezone of the "current" user, so that
/// mail is customised for the receiver.
$USER = $user;
course_setup($course);
if (!has_capability('moodle/course:view', get_context_instance(CONTEXT_COURSE, $submission->course), $user->id)) {
echo fullname($user)." not an active participant in " . format_string($course->shortname) . "\n";
continue;
}
if (! $teacher = get_record("user", "id", "$submission->teacher")) {
echo "Could not find teacher $submission->teacher\n";
continue;
}
if (! $mod = get_coursemodule_from_instance("assignment", $submission->assignment, $course->id)) {
echo "Could not find course module for assignment id $submission->assignment\n";
continue;
}
if (! $mod->visible) { /// Hold mail notification for hidden assignments until later
continue;
}
$strassignments = get_string("modulenameplural", "assignment");
$strassignment = get_string("modulename", "assignment");
$assignmentinfo = new object();
$assignmentinfo->teacher = fullname($teacher);
$assignmentinfo->assignment = format_string($submission->name,true);
$assignmentinfo->url = "$CFG->wwwroot/mod/assignment/view.php?id=$mod->id";
$postsubject = "$course->shortname: $strassignments: ".format_string($submission->name,true);
$posttext = "$course->shortname -> $strassignments -> ".format_string($submission->name,true)."\n";
$posttext .= "---------------------------------------------------------------------\n";
$posttext .= get_string("assignmentmail", "assignment", $assignmentinfo)."\n";
$posttext .= "---------------------------------------------------------------------\n";
if ($user->mailformat == 1) { // HTML
$posthtml = "
";
$posthtml .= "";
} else {
$posthtml = "";
}
if (! email_to_user($user, $teacher, $postsubject, $posttext, $posthtml)) {
echo "Error: assignment cron: Could not send out mail for id $submission->id to user $user->id ($user->email)\n";
}
}
$USER = $realuser;
course_setup(SITEID); // reset cron user language, theme and timezone settings
}
return true;
}
/**
* Return grade for given user or all users.
*
* @param int $assignmentid id of assignment
* @param int $userid optional user id, 0 means all users
* @return array array of grades, false if none
*/
function assignment_get_user_grades($assignment, $userid=0) {
global $CFG;
$user = $userid ? "AND u.id = $userid" : "";
$sql = "SELECT u.id, u.id AS userid, s.grade AS rawgrade, s.submissioncomment AS feedback, s.format AS feedbackformat,
s.teacher AS usermodified, s.timemarked AS dategraded, s.timemodified AS datesubmitted
FROM {$CFG->prefix}user u, {$CFG->prefix}assignment_submissions s
WHERE u.id = s.userid AND s.assignment = $assignment->id
$user";
return get_records_sql($sql);
}
/**
* Update grades by firing grade_updated event
*
* @param object $assignment null means all assignments
* @param int $userid specific user only, 0 mean all
*/
// MDL-9085 BOBPUFFER 2010-10-07 HACK TO ALLOW SAVING OF FLOATING POINT GRADE INPUT FROM TEXT FIELD IN ASSIGNMENT INTERFACE
// function assignment_update_grades($assignment=null, $userid=0, $nullifnone=true)
function assignment_update_grades($assignment=null, $userid=0, $submission=null) {
global $CFG;
if (!function_exists('grade_update')) { //workaround for buggy PHP versions
require_once($CFG->libdir.'/gradelib.php');
}
if ($assignment != null) {
if ($grades = assignment_get_user_grades($assignment, $userid)) {
foreach($grades as $k=>$v) {
if ($v->rawgrade == -1) {
$grades[$k]->rawgrade = null;
} elseif ($submission->grade <> null && $v->rawgrade <> $submission) {
$grades[$k]->rawgrade = $submission->grade; // END OF HACK BOBPUFFER
}
}
assignment_grade_item_update($assignment, $grades);
} else {
assignment_grade_item_update($assignment);
}
} else {
$sql = "SELECT a.*, cm.idnumber as cmidnumber, a.course as courseid
FROM {$CFG->prefix}assignment a, {$CFG->prefix}course_modules cm, {$CFG->prefix}modules m
WHERE m.name='assignment' AND m.id=cm.module AND cm.instance=a.id";
if ($rs = get_recordset_sql($sql)) {
while ($assignment = rs_fetch_next_record($rs)) {
if ($assignment->grade != 0) {
assignment_update_grades($assignment);
} else {
assignment_grade_item_update($assignment);
}
}
rs_close($rs);
}
}
}
/**
* Create grade item for given assignment
*
* @param object $assignment object with extra cmidnumber
* @param mixed optional array/object of grade(s); 'reset' means reset grades in gradebook
* @return int 0 if ok, error code otherwise
*/
function assignment_grade_item_update($assignment, $grades=NULL) {
global $CFG;
if (!function_exists('grade_update')) { //workaround for buggy PHP versions
require_once($CFG->libdir.'/gradelib.php');
}
if (!isset($assignment->courseid)) {
$assignment->courseid = $assignment->course;
}
$params = array('itemname'=>$assignment->name, 'idnumber'=>$assignment->cmidnumber);
if ($assignment->grade > 0) {
$params['gradetype'] = GRADE_TYPE_VALUE;
$params['grademax'] = $assignment->grade;
$params['grademin'] = 0;
} else if ($assignment->grade < 0) {
$params['gradetype'] = GRADE_TYPE_SCALE;
$params['scaleid'] = -$assignment->grade;
} else {
$params['gradetype'] = GRADE_TYPE_TEXT; // allow text comments only
}
if ($grades === 'reset') {
$params['reset'] = true;
$grades = NULL;
}
return grade_update('mod/assignment', $assignment->courseid, 'mod', 'assignment', $assignment->id, 0, $grades, $params);
}
/**
* Delete grade item for given assignment
*
* @param object $assignment object
* @return object assignment
*/
function assignment_grade_item_delete($assignment) {
global $CFG;
require_once($CFG->libdir.'/gradelib.php');
if (!isset($assignment->courseid)) {
$assignment->courseid = $assignment->course;
}
return grade_update('mod/assignment', $assignment->courseid, 'mod', 'assignment', $assignment->id, 0, NULL, array('deleted'=>1));
}
/**
* Returns the users with data in one assignment (students and teachers)
*
* @param $assignmentid int
* @return array of user objects
*/
function assignment_get_participants($assignmentid) {
global $CFG;
//Get students
$students = get_records_sql("SELECT DISTINCT u.id, u.id
FROM {$CFG->prefix}user u,
{$CFG->prefix}assignment_submissions a
WHERE a.assignment = '$assignmentid' and
u.id = a.userid");
//Get teachers
$teachers = get_records_sql("SELECT DISTINCT u.id, u.id
FROM {$CFG->prefix}user u,
{$CFG->prefix}assignment_submissions a
WHERE a.assignment = '$assignmentid' and
u.id = a.teacher");
//Add teachers to students
if ($teachers) {
foreach ($teachers as $teacher) {
$students[$teacher->id] = $teacher;
}
}
//Return students array (it contains an array of unique users)
return ($students);
}
/**
* Checks if a scale is being used by an assignment
*
* This is used by the backup code to decide whether to back up a scale
* @param $assignmentid int
* @param $scaleid int
* @return boolean True if the scale is used by the assignment
*/
function assignment_scale_used($assignmentid, $scaleid) {
$return = false;
$rec = get_record('assignment','id',$assignmentid,'grade',-$scaleid);
if (!empty($rec) && !empty($scaleid)) {
$return = true;
}
return $return;
}
/**
* Checks if scale is being used by any instance of assignment
*
* This is used to find out if scale used anywhere
* @param $scaleid int
* @return boolean True if the scale is used by any assignment
*/
function assignment_scale_used_anywhere($scaleid) {
if ($scaleid and record_exists('assignment', 'grade', -$scaleid)) {
return true;
} else {
return false;
}
}
/**
* Make sure up-to-date events are created for all assignment instances
*
* This standard function will check all instances of this module
* and make sure there are up-to-date events created for each of them.
* If courseid = 0, then every assignment event in the site is checked, else
* only assignment events belonging to the course specified are checked.
* This function is used, in its new format, by restore_refresh_events()
*
* @param $courseid int optional If zero then all assignments for all courses are covered
* @return boolean Always returns true
*/
function assignment_refresh_events($courseid = 0) {
if ($courseid == 0) {
if (! $assignments = get_records("assignment")) {
return true;
}
} else {
if (! $assignments = get_records("assignment", "course", $courseid)) {
return true;
}
}
$moduleid = get_field('modules', 'id', 'name', 'assignment');
foreach ($assignments as $assignment) {
$event = NULL;
$event->name = addslashes($assignment->name);
$event->description = addslashes($assignment->description);
$event->timestart = $assignment->timedue;
if ($event->id = get_field('event', 'id', 'modulename', 'assignment', 'instance', $assignment->id)) {
update_event($event);
} else {
$event->courseid = $assignment->course;
$event->groupid = 0;
$event->userid = 0;
$event->modulename = 'assignment';
$event->instance = $assignment->id;
$event->eventtype = 'due';
$event->timeduration = 0;
$event->visible = get_field('course_modules', 'visible', 'module', $moduleid, 'instance', $assignment->id);
add_event($event);
}
}
return true;
}
/**
* Print recent activity from all assignments in a given course
*
* This is used by the recent activity block
*/
function assignment_print_recent_activity($course, $viewfullnames, $timestart) {
global $CFG, $USER;
// do not use log table if possible, it may be huge
if (!$submissions = get_records_sql("SELECT asb.id, asb.timemodified, cm.id AS cmid, asb.userid,
u.firstname, u.lastname, u.email, u.picture
FROM {$CFG->prefix}assignment_submissions asb
JOIN {$CFG->prefix}assignment a ON a.id = asb.assignment
JOIN {$CFG->prefix}course_modules cm ON cm.instance = a.id
JOIN {$CFG->prefix}modules md ON md.id = cm.module
JOIN {$CFG->prefix}user u ON u.id = asb.userid
WHERE asb.timemodified > $timestart AND
a.course = {$course->id} AND
md.name = 'assignment'
ORDER BY asb.timemodified ASC")) {
return false;
}
$modinfo =& get_fast_modinfo($course); // reference needed because we might load the groups
$show = array();
$grader = array();
foreach($submissions as $submission) {
if (!array_key_exists($submission->cmid, $modinfo->cms)) {
continue;
}
$cm = $modinfo->cms[$submission->cmid];
if (!$cm->uservisible) {
continue;
}
if ($submission->userid == $USER->id) {
$show[] = $submission;
continue;
}
// the act of sumbitting of assignment may be considered private - only graders will see it if specified
if (empty($CFG->assignment_showrecentsubmissions)) {
if (!array_key_exists($cm->id, $grader)) {
$grader[$cm->id] = has_capability('moodle/grade:viewall', get_context_instance(CONTEXT_MODULE, $cm->id));
}
if (!$grader[$cm->id]) {
continue;
}
}
$groupmode = groups_get_activity_groupmode($cm, $course);
if ($groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', get_context_instance(CONTEXT_MODULE, $cm->id))) {
if (isguestuser()) {
// shortcut - guest user does not belong into any group
continue;
}
if (is_null($modinfo->groups)) {
$modinfo->groups = groups_get_user_groups($course->id); // load all my groups and cache it in modinfo
}
// this will be slow - show only users that share group with me in this cm
if (empty($modinfo->groups[$cm->id])) {
continue;
}
$usersgroups = groups_get_all_groups($course->id, $submission->userid, $cm->groupingid);
if (is_array($usersgroups)) {
$usersgroups = array_keys($usersgroups);
$intersect = array_intersect($usersgroups, $modinfo->groups[$cm->id]);
if (empty($intersect)) {
continue;
}
}
}
$show[] = $submission;
}
if (empty($show)) {
return false;
}
print_headline(get_string('newsubmissions', 'assignment').':', 3);
foreach ($show as $submission) {
$cm = $modinfo->cms[$submission->cmid];
$link = $CFG->wwwroot.'/mod/assignment/view.php?id='.$cm->id;
print_recent_activity_note($submission->timemodified, $submission, $cm->name, $link, false, $viewfullnames);
}
return true;
}
/**
* Returns all assignments since a given time in specified forum.
*/
function assignment_get_recent_mod_activity(&$activities, &$index, $timestart, $courseid, $cmid, $userid=0, $groupid=0) {
global $CFG, $COURSE, $USER;
if ($COURSE->id == $courseid) {
$course = $COURSE;
} else {
$course = get_record('course', 'id', $courseid);
}
$modinfo =& get_fast_modinfo($course);
$cm = $modinfo->cms[$cmid];
if ($userid) {
$userselect = "AND u.id = $userid";
} else {
$userselect = "";
}
if ($groupid) {
$groupselect = "AND gm.groupid = $groupid";
$groupjoin = "JOIN {$CFG->prefix}groups_members gm ON gm.userid=u.id";
} else {
$groupselect = "";
$groupjoin = "";
}
if (!$submissions = get_records_sql("SELECT asb.id, asb.timemodified, asb.userid,
u.firstname, u.lastname, u.email, u.picture
FROM {$CFG->prefix}assignment_submissions asb
JOIN {$CFG->prefix}assignment a ON a.id = asb.assignment
JOIN {$CFG->prefix}user u ON u.id = asb.userid
$groupjoin
WHERE asb.timemodified > $timestart AND a.id = $cm->instance
$userselect $groupselect
ORDER BY asb.timemodified ASC")) {
return;
}
$groupmode = groups_get_activity_groupmode($cm, $course);
$cm_context = get_context_instance(CONTEXT_MODULE, $cm->id);
$grader = has_capability('moodle/grade:viewall', $cm_context);
$accessallgroups = has_capability('moodle/site:accessallgroups', $cm_context);
$viewfullnames = has_capability('moodle/site:viewfullnames', $cm_context);
if (is_null($modinfo->groups)) {
$modinfo->groups = groups_get_user_groups($course->id); // load all my groups and cache it in modinfo
}
$show = array();
foreach($submissions as $submission) {
if ($submission->userid == $USER->id) {
$show[] = $submission;
continue;
}
// the act of submitting of assignment may be considered private - only graders will see it if specified
if (empty($CFG->assignment_showrecentsubmissions)) {
if (!$grader) {
continue;
}
}
if ($groupmode == SEPARATEGROUPS and !$accessallgroups) {
if (isguestuser()) {
// shortcut - guest user does not belong into any group
continue;
}
// this will be slow - show only users that share group with me in this cm
if (empty($modinfo->groups[$cm->id])) {
continue;
}
$usersgroups = groups_get_all_groups($course->id, $cm->userid, $cm->groupingid);
if (is_array($usersgroups)) {
$usersgroups = array_keys($usersgroups);
$interset = array_intersect($usersgroups, $modinfo->groups[$cm->id]);
if (empty($intersect)) {
continue;
}
}
}
$show[] = $submission;
}
if (empty($show)) {
return;
}
if ($grader) {
require_once($CFG->libdir.'/gradelib.php');
$userids = array();
foreach ($show as $id=>$submission) {
$userids[] = $submission->userid;
}
$grades = grade_get_grades($courseid, 'mod', 'assignment', $cm->instance, $userids);
}
$aname = format_string($cm->name,true);
foreach ($show as $submission) {
$tmpactivity = new object();
$tmpactivity->type = 'assignment';
$tmpactivity->cmid = $cm->id;
$tmpactivity->name = $aname;
$tmpactivity->sectionnum = $cm->sectionnum;
$tmpactivity->timestamp = $submission->timemodified;
if ($grader) {
$tmpactivity->grade = $grades->items[0]->grades[$submission->userid]->str_long_grade;
}
$tmpactivity->user->userid = $submission->userid;
$tmpactivity->user->fullname = fullname($submission, $viewfullnames);
$tmpactivity->user->picture = $submission->picture;
$activities[$index++] = $tmpactivity;
}
return;
}
/**
* Print recent activity from all assignments in a given course
*
* This is used by course/recent.php
*/
function assignment_print_recent_mod_activity($activity, $courseid, $detail, $modnames) {
global $CFG;
echo '
";
}
/// GENERIC SQL FUNCTIONS
/**
* Fetch info from logs
*
* @param $log object with properties ->info (the assignment id) and ->userid
* @return array with assignment name and user firstname and lastname
*/
function assignment_log_info($log) {
global $CFG;
return get_record_sql("SELECT a.name, u.firstname, u.lastname
FROM {$CFG->prefix}assignment a,
{$CFG->prefix}user u
WHERE a.id = '$log->info'
AND u.id = '$log->userid'");
}
/**
* Return list of marked submissions that have not been mailed out for currently enrolled students
*
* @return array
*/
function assignment_get_unmailed_submissions($starttime, $endtime) {
global $CFG;
return get_records_sql("SELECT s.*, a.course, a.name
FROM {$CFG->prefix}assignment_submissions s,
{$CFG->prefix}assignment a
WHERE s.mailed = 0
AND s.timemarked <= $endtime
AND s.timemarked >= $starttime
AND s.assignment = a.id");
/* return get_records_sql("SELECT s.*, a.course, a.name
FROM {$CFG->prefix}assignment_submissions s,
{$CFG->prefix}assignment a,
{$CFG->prefix}user_students us
WHERE s.mailed = 0
AND s.timemarked <= $endtime
AND s.timemarked >= $starttime
AND s.assignment = a.id
AND s.userid = us.userid
AND a.course = us.course");
*/
}
/**
* Counts all real assignment submissions by ENROLLED students (not empty ones)
*
* There are also assignment type methods count_real_submissions() wich in the default
* implementation simply call this function.
* @param $groupid int optional If nonzero then count is restricted to this group
* @return int The number of submissions
*/
function assignment_count_real_submissions($cm, $groupid=0) {
global $CFG;
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
if (!empty($CFG->gradebookroles)) {
$gradebookroles = explode(",", $CFG->gradebookroles);
} else {
$gradebookroles = '';
}
$users = get_role_users($gradebookroles, $context, true, '', 'u.lastname ASC', true, $groupid);
if ($users) {
$users = array_keys($users);
// if groupmembersonly used, remove users who are not in any group
if (!empty($CFG->enablegroupings) and $cm->groupmembersonly) {
$groupingusers = groups_get_grouping_members($cm->groupingid, 'u.id', 'u.id');
if ($groupingusers) {
$users = array_intersect($users, array_keys($groupingusers));
}
}
}
if (empty($users)) {
return 0;
}
$userlists = implode(',', $users);
return count_records_sql("SELECT COUNT('x')
FROM {$CFG->prefix}assignment_submissions
WHERE assignment = $cm->instance AND
timemodified > 0 AND
userid IN ($userlists)");
}
/**
* Return all assignment submissions by ENROLLED students (even empty)
*
* There are also assignment type methods get_submissions() wich in the default
* implementation simply call this function.
* @param $sort string optional field names for the ORDER BY in the sql query
* @param $dir string optional specifying the sort direction, defaults to DESC
* @return array The submission objects indexed by id
*/
function assignment_get_all_submissions($assignment, $sort="", $dir="DESC") {
/// Return all assignment submissions by ENROLLED students (even empty)
global $CFG;
if ($sort == "lastname" or $sort == "firstname") {
$sort = "u.$sort $dir";
} else if (empty($sort)) {
$sort = "a.timemodified DESC";
} else {
$sort = "a.$sort $dir";
}
/* not sure this is needed at all since assignmenet already has a course define, so this join?
$select = "s.course = '$assignment->course' AND";
if ($assignment->course == SITEID) {
$select = '';
}*/
return get_records_sql("SELECT a.*
FROM {$CFG->prefix}assignment_submissions a,
{$CFG->prefix}user u
WHERE u.id = a.userid
AND a.assignment = '$assignment->id'
ORDER BY $sort");
/* return get_records_sql("SELECT a.*
FROM {$CFG->prefix}assignment_submissions a,
{$CFG->prefix}user_students s,
{$CFG->prefix}user u
WHERE a.userid = s.userid
AND u.id = a.userid
AND $select a.assignment = '$assignment->id'
ORDER BY $sort");
*/
}
/**
* Add a get_coursemodule_info function in case any assignment type wants to add 'extra' information
* for the course (see resource).
*
* Given a course_module object, this function returns any "extra" information that may be needed
* when printing this activity in a course listing. See get_array_of_activities() in course/lib.php.
*
* @param $coursemodule object The coursemodule object (record).
* @return object An object on information that the coures will know about (most noticeably, an icon).
*
*/
function assignment_get_coursemodule_info($coursemodule) {
global $CFG;
if (! $assignment = get_record('assignment', 'id', $coursemodule->instance, '', '', '', '', 'id, assignmenttype, name')) {
return false;
}
$libfile = "$CFG->dirroot/mod/assignment/type/$assignment->assignmenttype/assignment.class.php";
if (file_exists($libfile)) {
require_once($libfile);
$assignmentclass = "assignment_$assignment->assignmenttype";
$ass = new $assignmentclass('staticonly');
if ($result = $ass->get_coursemodule_info($coursemodule)) {
return $result;
} else {
$info = new object();
$info->name = $assignment->name;
return $info;
}
} else {
debugging('Incorrect assignment type: '.$assignment->assignmenttype);
return false;
}
}
/// OTHER GENERAL FUNCTIONS FOR ASSIGNMENTS ///////////////////////////////////////
/**
* Returns an array of installed assignment types indexed and sorted by name
*
* @return array The index is the name of the assignment type, the value its full name from the language strings
*/
function assignment_types() {
$types = array();
$names = get_list_of_plugins('mod/assignment/type');
foreach ($names as $name) {
$types[$name] = get_string('type'.$name, 'assignment');
// ugly hack to support pluggable assignment type titles..
if ($types[$name] == '[[type'.$name.']]') {
$types[$name] = get_string('type'.$name, 'assignment_'.$name);
}
}
asort($types);
return $types;
}
/**
* Executes upgrade scripts for assignment types when necessary
*/
function assignment_upgrade_submodules() {
global $CFG;
/// Install/upgrade assignment types (it uses, simply, the standard plugin architecture)
upgrade_plugins('assignment_type', 'mod/assignment/type', "$CFG->wwwroot/$CFG->admin/index.php");
}
function assignment_print_overview($courses, &$htmlarray) {
global $USER, $CFG;
if (empty($courses) || !is_array($courses) || count($courses) == 0) {
return array();
}
if (!$assignments = get_all_instances_in_courses('assignment',$courses)) {
return;
}
$assignmentids = array();
// Do assignment_base::isopen() here without loading the whole thing for speed
foreach ($assignments as $key => $assignment) {
$time = time();
if ($assignment->timedue) {
if ($assignment->preventlate) {
$isopen = ($assignment->timeavailable <= $time && $time <= $assignment->timedue);
} else {
$isopen = ($assignment->timeavailable <= $time);
}
}
if (empty($isopen) || empty($assignment->timedue)) {
unset($assignments[$key]);
}else{
$assignmentids[] = $assignment->id;
}
}
if(empty($assignmentids)){
// no assigments to look at - we're done
return true;
}
$strduedate = get_string('duedate', 'assignment');
$strduedateno = get_string('duedateno', 'assignment');
$strgraded = get_string('graded', 'assignment');
$strnotgradedyet = get_string('notgradedyet', 'assignment');
$strnotsubmittedyet = get_string('notsubmittedyet', 'assignment');
$strsubmitted = get_string('submitted', 'assignment');
$strassignment = get_string('modulename', 'assignment');
$strreviewed = get_string('reviewed','assignment');
// NOTE: we do all possible database work here *outside* of the loop to ensure this scales
// build up and array of unmarked submissions indexed by assigment id/ userid
// for use where the user has grading rights on assigment
$rs = get_recordset_sql("SELECT id, assignment, userid
FROM {$CFG->prefix}assignment_submissions
WHERE teacher = 0 AND timemarked = 0
AND assignment IN (". implode(',', $assignmentids).")");
$unmarkedsubmissions = array();
while ($ra = rs_fetch_next_record($rs)) {
$unmarkedsubmissions[$ra->assignment][$ra->userid] = $ra->id;
}
rs_close($rs);
// get all user submissions, indexed by assigment id
$mysubmissions = get_records_sql("SELECT assignment, timemarked, teacher, grade
FROM {$CFG->prefix}assignment_submissions
WHERE userid = {$USER->id} AND
assignment IN (".implode(',', $assignmentids).")");
foreach ($assignments as $assignment) {
$str = '
';
if (empty($htmlarray[$assignment->course]['assignment'])) {
$htmlarray[$assignment->course]['assignment'] = $str;
} else {
$htmlarray[$assignment->course]['assignment'] .= $str;
}
}
}
function assignment_display_lateness($timesubmitted, $timedue) {
if (!$timedue) {
return '';
}
$time = $timedue - $timesubmitted;
if ($time < 0) {
$timetext = get_string('late', 'assignment', format_time($time));
return ' ('.$timetext.')';
} else {
$timetext = get_string('early', 'assignment', format_time($time));
return ' ('.$timetext.')';
}
}
function assignment_get_view_actions() {
return array('view');
}
function assignment_get_post_actions() {
return array('upload');
}
function assignment_get_types() {
global $CFG;
$types = array();
$type = new object();
$type->modclass = MOD_CLASS_ACTIVITY;
$type->type = "assignment_group_start";
$type->typestr = '--'.get_string('modulenameplural', 'assignment');
$types[] = $type;
$standardassignments = array('upload','online','uploadsingle','offline');
foreach ($standardassignments as $assignmenttype) {
$type = new object();
$type->modclass = MOD_CLASS_ACTIVITY;
$type->type = "assignment&type=$assignmenttype";
$type->typestr = get_string("type$assignmenttype", 'assignment');
$types[] = $type;
}
/// Drop-in extra assignment types
$assignmenttypes = get_list_of_plugins('mod/assignment/type');
foreach ($assignmenttypes as $assignmenttype) {
if (!empty($CFG->{'assignment_hide_'.$assignmenttype})) { // Not wanted
continue;
}
if (!in_array($assignmenttype, $standardassignments)) {
$type = new object();
$type->modclass = MOD_CLASS_ACTIVITY;
$type->type = "assignment&type=$assignmenttype";
$type->typestr = get_string("type$assignmenttype", 'assignment_'.$assignmenttype);
$types[] = $type;
}
}
$type = new object();
$type->modclass = MOD_CLASS_ACTIVITY;
$type->type = "assignment_group_end";
$type->typestr = '--';
$types[] = $type;
return $types;
}
/**
* Removes all grades from gradebook
* @param int $courseid
* @param string optional type
*/
function assignment_reset_gradebook($courseid, $type='') {
global $CFG;
$type = $type ? "AND a.assignmenttype='$type'" : '';
$sql = "SELECT a.*, cm.idnumber as cmidnumber, a.course as courseid
FROM {$CFG->prefix}assignment a, {$CFG->prefix}course_modules cm, {$CFG->prefix}modules m
WHERE m.name='assignment' AND m.id=cm.module AND cm.instance=a.id AND a.course=$courseid $type";
if ($assignments = get_records_sql($sql)) {
foreach ($assignments as $assignment) {
assignment_grade_item_update($assignment, 'reset');
}
}
}
/**
* This function is used by the reset_course_userdata function in moodlelib.
* This function will remove all posts from the specified assignment
* and clean up any related data.
* @param $data the data submitted from the reset course.
* @return array status array
*/
function assignment_reset_userdata($data) {
global $CFG;
$status = array();
foreach (get_list_of_plugins('mod/assignment/type') as $type) {
require_once("$CFG->dirroot/mod/assignment/type/$type/assignment.class.php");
$assignmentclass = "assignment_$type";
$ass = new $assignmentclass();
$status = array_merge($status, $ass->reset_userdata($data));
}
return $status;
}
/**
* Implementation of the function for printing the form elements that control
* whether the course reset functionality affects the assignment.
* @param $mform form passed by reference
*/
function assignment_reset_course_form_definition(&$mform) {
$mform->addElement('header', 'assignmentheader', get_string('modulenameplural', 'assignment'));
$mform->addElement('advcheckbox', 'reset_assignment_submissions', get_string('deleteallsubmissions','assignment'));
}
/**
* Course reset form defaults.
*/
function assignment_reset_course_form_defaults($course) {
return array('reset_assignment_submissions'=>1);
}
/**
* Returns all other caps used in module
*/
function assignment_get_extra_capabilities() {
return array('moodle/site:accessallgroups', 'moodle/site:viewfullnames');
}
?>
![](\"$CFG-)
modpixpath/assignment/icon.gif\" ".
"class=\"icon\" alt=\"$modname\">";
echo "wwwroot/mod/assignment/view.php?id={$activity->cmid}\">{$activity->name}";
echo '