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<?PHP // $Id$
/**
* assignment_base is the base class for assignment types
*
* This class provides all the functionality for an assignment
*/
DEFINE ('ASSIGNMENT_COUNT_WORDS', 1);
DEFINE ('ASSIGNMENT_COUNT_LETTERS', 2);
/**
* Standard base class for all assignment submodules (assignment types).
*/
class assignment_base {
var $cm;
var $course;
var $assignment;
var $strassignment;
var $strassignments;
var $strsubmissions;
var $strlastmodified;
var $pagetitle;
var $usehtmleditor;
var $defaultformat;
var $context;
var $type;
/**
* Constructor for the base assignment class
*
* Constructor for the base assignment class.
* If cmid is set create the cm, course, assignment objects.
* If the assignment is hidden and the user is not a teacher then
* this prints a page header and notice.
*
* @param cmid integer, the current course module id - not set for new assignments
* @param assignment object, usually null, but if we have it we pass it to save db access
* @param cm object, usually null, but if we have it we pass it to save db access
* @param course object, usually null, but if we have it we pass it to save db access
*/
function assignment_base($cmid='staticonly', $assignment=NULL, $cm=NULL, $course=NULL) {
global $COURSE;
if ($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->id; // 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, 'view.php?id=' . $this->cm->id);
echo '<div class="reportlink">'.$this->submittedlink().'</div>';
echo '<div class="clearer"></div>';
}
/**
* 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 && !$this->assignment->timedue) {
return;
}
print_simple_box_start('center', '', '', 0, 'generalbox', 'dates');
echo '<table>';
if ($this->assignment->timeavailable) {
echo '<tr><td class="c0">'.get_string('availabledate','assignment').':</td>';
echo ' <td class="c1">'.userdate($this->assignment->timeavailable).'</td></tr>';
}
if ($this->assignment->timedue) {
echo '<tr><td class="c0">'.get_string('duedate','assignment').':</td>';
echo ' <td class="c1">'.userdate($this->assignment->timedue).'</td></tr>';
}
echo '</table>';
print_simple_box_end();
}
/**
* Display the bottom and footer of a page
*
* This default method just prints the footer.
* This will be suitable for most assignment types
*/
function view_footer() {
print_footer($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 (!has_capability('mod/assignment:submit', $this->context, $USER->id, false)) {
// can not submit assignments -> no feedback
return;
}
if (!$submission) { /// Get submission for this assignment
$submission = $this->get_submission($USER->id);
}
$grading_info = grade_get_grades($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', $this->course->teacher)); // TODO: fix teacher string
echo '<table cellspacing="0" class="feedback">';
echo '<tr>';
echo '<td class="left picture">';
if ($teacher) {
print_user_picture($teacher, $this->course->id, $teacher->picture);
}
echo '</td>';
echo '<td class="topic">';
echo '<div class="from">';
if ($teacher) {
echo '<div class="fullname">'.fullname($teacher).'</div>';
}
echo '<div class="time">'.userdate($graded_date).'</div>';
echo '</div>';
echo '</td>';
echo '</tr>';
echo '<tr>';
echo '<td class="left side">&nbsp;</td>';
echo '<td class="content">';
echo '<div class="grade">';
echo get_string("grade").': '.$grade->str_long_grade;
echo '</div>';
echo '<div class="clearer"></div>';
echo '<div class="comment">';
echo $grade->str_feedback;
echo '</div>';
echo '</tr>';
echo '</table>';
}
/**
* 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)) {
$submitted = '<a href="submissions.php?id='.$this->cm->id.'">'.
get_string('viewsubmissions', 'assignment', $count).'</a>';
} else {
$submitted = '<a href="submissions.php?id='.$this->cm->id.'">'.
get_string('noattempts', 'assignment').'</a>';
}
} 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)) {
$submitted = '<span class="early">'.userdate($submission->timemodified).'</span>';
} else {
$submitted = '<span class="late">'.userdate($submission->timemodified).'</span>';
}
}
}
}
}
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 $assignment object The data from the form on mod.html
* @return int The assignment id
*/
function update_instance($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) {
assignment_update_grades($this->assignment, $submission->userid);
}
/**
* 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
if ($submission = $this->process_feedback()) {
//IE needs proper header with encoding
print_header(get_string('feedback', 'assignment').':'.format_string($this->assignment->name));
print_heading(get_string('changessaved'));
print $this->update_main_listing($submission);
}
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){
if ($newsubmission) {
if (!isset($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;
}
}
// 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
$output .= '<script type="text/javascript">'."\n<!--\n";
if (empty($SESSION->flextable['mod-assignment-submissions']->collapse['submissioncomment'])) {
if ($quickgrade){
$output.= 'opener.document.getElementById("submissioncomment'.$submission->userid.'").value="'
.trim($submission->submissioncomment).'";'."\n";
} else {
$output.= 'opener.document.getElementById("com'.$submission->userid.
'").innerHTML="'.shorten_text(trim(strip_tags($submission->submissioncomment)), 15)."\";\n";
}
}
if (empty($SESSION->flextable['mod-assignment-submissions']->collapse['grade'])) {
//echo optional_param('menuindex');
if ($quickgrade){
$output.= 'opener.document.getElementById("menumenu'.$submission->userid.
'").selectedIndex="'.optional_param('menuindex', 0, PARAM_INT).'";'."\n";
} else {
$output.= 'opener.document.getElementById("g'.$submission->userid.'").innerHTML="'.
$this->display_grade($submission->grade)."\";\n";
}
}
//need to add student's assignments in there too.
if (empty($SESSION->flextable['mod-assignment-submissions']->collapse['timemodified']) &&
$submission->timemodified) {
$output.= 'opener.document.getElementById("ts'.$submission->userid.
'").innerHTML="'.addslashes_js($this->print_student_answer($submission->userid)).userdate($submission->timemodified)."\";\n";
}
if (empty($SESSION->flextable['mod-assignment-submissions']->collapse['timemarked']) &&
$submission->timemarked) {
$output.= 'opener.document.getElementById("tt'.$submission->userid.
'").innerHTML="'.userdate($submission->timemarked)."\";\n";
}
if (empty($SESSION->flextable['mod-assignment-submissions']->collapse['status'])) {
$output.= 'opener.document.getElementById("up'.$submission->userid.'").className="s1";';
$buttontext = get_string('update');
$button = link_to_popup_window ('/mod/assignment/submissions.php?id='.$this->cm->id.'&amp;userid='.$submission->userid.'&amp;mode=single'.'&amp;offset='.(optional_param('offset', '', PARAM_INT)-1),
'grade'.$submission->userid, $buttontext, 450, 700, $buttontext, 'none', true, 'button'.$submission->userid);
$output.= 'opener.document.getElementById("up'.$submission->userid.'").innerHTML="'.addslashes_js($button).'";';
}
$grading_info = grade_get_grades($this->course->id, 'mod', 'assignment', $this->assignment->id, $submission->userid);
if (empty($SESSION->flextable['mod-assignment-submissions']->collapse['finalgrade'])) {
$output.= 'opener.document.getElementById("finalgrade_'.$submission->userid.
'").innerHTML="'.$grading_info->items[0]->grades[$submission->userid]->str_grade.'";'."\n";
}
if (!empty($CFG->enableoutcomes) and empty($SESSION->flextable['mod-assignment-submissions']->collapse['outcome'])) {
if (!empty($grading_info->outcomes)) {
foreach($grading_info->outcomes as $n=>$outcome) {
if ($outcome->grades[$submission->userid]->locked) {
continue;
}
if ($quickgrade){
$output.= 'opener.document.getElementById("outcome_'.$n.'_'.$submission->userid.
'").selectedIndex="'.$outcome->grades[$submission->userid]->grade.'";'."\n";
} else {
$options = make_grades_menu(-$outcome->scaleid);
$options[0] = get_string('nooutcome', 'grades');
$output.= 'opener.document.getElementById("outcome_'.$n.'_'.$submission->userid.'").innerHTML="'.$options[$outcome->grades[$submission->userid]->grade]."\";\n";
}
}
}
}
$output .= "\n-->\n</script>";
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;
/// 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 ($users = get_users_by_capability($context, 'mod/assignment:submit', 'u.id', '', '', '', $currentgroup, '', false)) {
$users = array_keys($users);
}
// if groupmembersonly used, remove users who are not in any group
if ($users and !empty($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 $extra_javascript;
///SOme javascript to help with setting up >.>
echo '<script type="text/javascript">'."\n";
echo 'function setNext(){'."\n";
echo 'document.getElementById(\'submitform\').mode.value=\'next\';'."\n";
echo 'document.getElementById(\'submitform\').userid.value="'.$nextid.'";'."\n";
echo '}'."\n";
echo 'function saveNext(){'."\n";
echo 'document.getElementById(\'submitform\').mode.value=\'saveandnext\';'."\n";
echo 'document.getElementById(\'submitform\').userid.value="'.$nextid.'";'."\n";
echo 'document.getElementById(\'submitform\').saveuserid.value="'.$userid.'";'."\n";
echo 'document.getElementById(\'submitform\').menuindex.value = document.getElementById(\'submitform\').grade.selectedIndex;'."\n";
echo '}'."\n";
echo '</script>'."\n";
echo '<table cellspacing="0" class="feedback '.$subtype.'" >';
///Start of teacher info row
echo '<tr>';
echo '<td class="picture teacher">';
if ($submission->teacher) {
$teacher = get_record('user', 'id', $submission->teacher);
} else {
global $USER;
$teacher = $USER;
}
print_user_picture($teacher, $this->course->id, $teacher->picture);
echo '</td>';
echo '<td class="content">';
echo '<form id="submitform" action="submissions.php" method="post">';
echo '<div>'; // xhtml compatibility - invisiblefieldset was breaking layout here
echo '<input type="hidden" name="offset" value="'.($offset+1).'" />';
echo '<input type="hidden" name="userid" value="'.$userid.'" />';
echo '<input type="hidden" name="id" value="'.$this->cm->id.'" />';
echo '<input type="hidden" name="mode" value="grade" />';
echo '<input type="hidden" name="menuindex" value="0" />';//selected menu index
//new hidden field, initialized to -1.
echo '<input type="hidden" name="saveuserid" value="-1" />';
if ($submission->timemarked) {
echo '<div class="from">';
echo '<div class="fullname">'.fullname($teacher, true).'</div>';
echo '<div class="time">'.userdate($submission->timemarked).'</div>';
echo '</div>';
}
echo '<div class="grade"><label for="menugrade">'.get_string('grade').'</label> ';
choose_from_menu(make_grades_menu($this->assignment->grade), 'grade', $submission->grade, get_string('nograde'), '', -1, false, $disabled);
echo '</div>';
echo '<div class="clearer"></div>';
echo '<div class="finalgrade">'.get_string('finalgrade', 'grades').': '.$grading_info->items[0]->grades[$userid]->str_grade.'</div>';
echo '<div class="clearer"></div>';
if (!empty($CFG->enableoutcomes)) {
foreach($grading_info->outcomes as $n=>$outcome) {
echo '<div class="outcome"><label for="menuoutcome_'.$n.'">'.$outcome->name.'</label> ';
$options = make_grades_menu(-$outcome->scaleid);
if ($outcome->grades[$submission->userid]->locked) {
$options[0] = get_string('nooutcome', 'grades');
echo $options[$outcome->grades[$submission->userid]->grade];
} else {
choose_from_menu($options, 'outcome_'.$n.'['.$userid.']', $outcome->grades[$submission->userid]->grade, get_string('nooutcome', 'grades'), '', 0, false, false, 0, 'menuoutcome_'.$n);
}
echo '</div>';
echo '<div class="clearer"></div>';
}
}
$this->preprocess_submission($submission);
if ($disabled) {
echo '<div class="disabledfeedback">'.$grading_info->items[0]->grades[$userid]->str_feedback.'</div>';
} else {
print_textarea($this->usehtmleditor, 14, 58, 0, 0, 'submissioncomment', $submission->submissioncomment, $this->course->id);
if ($this->usehtmleditor) {
echo '<input type="hidden" name="format" value="'.FORMAT_HTML.'" />';
} else {
echo '<div class="format">';
choose_from_menu(format_text_menu(), "format", $submission->format, "");
helpbutton("textformat", get_string("helpformatting"));
echo '</div>';
}
}
$lastmailinfo = get_user_preferences('assignment_mailinfo', 1) ? 'checked="checked"' : '';
///Print Buttons in Single View
echo '<input type="hidden" name="mailinfo" value="0" />';
echo '<input type="checkbox" id="mailinfo" name="mailinfo" value="1" '.$lastmailinfo.' /><label for="mailinfo">'.get_string('enableemailnotification','assignment').'</label>';
echo '<div class="buttons">';
echo '<input type="submit" name="submit" value="'.get_string('savechanges').'" onclick = "document.getElementById(\'submitform\').menuindex.value = document.getElementById(\'submitform\').grade.selectedIndex" />';
echo '<input type="submit" name="cancel" value="'.get_string('cancel').'" />';
//if there are more to be graded.
if ($nextid) {
echo '<input type="submit" name="saveandnext" value="'.get_string('saveandnext').'" onclick="saveNext()" />';
echo '<input type="submit" name="next" value="'.get_string('next').'" onclick="setNext();" />';
}
echo '</div>';
echo '</div></form>';
$customfeedback = $this->custom_feedbackform($submission, true);
if (!empty($customfeedback)) {
echo $customfeedback;
}
echo '</td></tr>';
///End of teacher info row, Start of student info row
echo '<tr>';
echo '<td class="picture user">';
print_user_picture($user, $this->course->id, $user->picture);
echo '</td>';
echo '<td class="topic">';
echo '<div class="from">';
echo '<div class="fullname">'.fullname($user, true).'</div>';
if ($submission->timemodified) {
echo '<div class="time">'.userdate($submission->timemodified).
$this->display_lateness($submission->timemodified).'</div>';
}
echo '</div>';
$this->print_user_files($user->id);
echo '</td>';
echo '</tr>';
///End of student info row
echo '</table>';
if (!$disabled and $this->usehtmleditor) {
use_html_editor();
}
print_footer('none');
}
/**
* Preprocess submission before grading
*
* Called by display_submission()
* The default type does nothing here.
* @param $submission object The submission object
*/
function preprocess_submission(&$submission) {
}
/**
* Display all the submissions ready for grading
*/
function display_submissions($message='') {
global $CFG, $db, $USER;
require_once($CFG->libdir.'/gradelib.php');
/* first we check to see if the form has just been submitted
* to request user_preference updates
*/
if (isset($_POST['updatepref'])){
$perpage = optional_param('perpage', 10, PARAM_INT);
$perpage = ($perpage <= 0) ? 10 : $perpage ;
set_user_preference('assignment_perpage', $perpage);
set_user_preference('assignment_quickgrade', optional_param('quickgrade', 0, PARAM_BOOL));
}
/* next we get perpage and quickgrade (allow quick grade) params
* from database
*/
$perpage = get_user_preferences('assignment_perpage', 10);
$quickgrade = get_user_preferences('assignment_quickgrade', 0);
$grading_info = grade_get_grades($this->course->id, 'mod', 'assignment', $this->assignment->id);
if (!empty($CFG->enableoutcomes) and !empty($grading_info->outcomes)) {
$uses_outcomes = true;
} else {
$uses_outcomes = false;
}
$page = optional_param('page', 0, PARAM_INT);
$strsaveallfeedback = get_string('saveallfeedback', 'assignment');
/// Some shortcuts to make the code read better
$course = $this->course;
$assignment = $this->assignment;
$cm = $this->cm;
$tabindex = 1; //tabindex for quick grading tabbing; Not working for dropdowns yet
add_to_log($course->id, 'assignment', 'view submission', 'submissions.php?id='.$this->cm->id, $this->assignment->id, $this->cm->id);
$navigation = build_navigation($this->strsubmissions, $this->cm);
print_header_simple(format_string($this->assignment->name,true), "", $navigation,
'', '', true, update_module_button($cm->id, $course->id, $this->strassignment), navmenu($course, $cm));
$course_context = get_context_instance(CONTEXT_COURSE, $course->id);
if (has_capability('gradereport/grader:view', $course_context) && has_capability('moodle/grade:viewall', $course_context)) {
echo '<div class="allcoursegrades"><a href="' . $CFG->wwwroot . '/grade/report/grader/index.php?id=' . $course->id . '">'
. get_string('seeallcoursegrades', 'grades') . '</a></div>';
}
if (!empty($message)) {
echo $message; // display messages here if any
}
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
/// Check to see if groups are being used in this assignment
/// find out current groups mode
$groupmode = groups_get_activity_groupmode($cm);
$currentgroup = groups_get_activity_group($cm, true);
groups_print_activity_menu($cm, 'submissions.php?id=' . $this->cm->id);
/// Get all ppl that are allowed to submit assignments
if ($users = get_users_by_capability($context, 'mod/assignment:submit', 'u.id', '', '', '', $currentgroup, '', false)) {
$users = array_keys($users);
}
// if groupmembersonly used, remove users who are not in any group
if ($users and !empty($CFG->enablegroupings) and $cm->groupmembersonly) {
if ($groupingusers = groups_get_grouping_members($cm->groupingid, 'u.id', 'u.id')) {
$users = array_intersect($users, array_keys($groupingusers));
}
}
$tablecolumns = array('picture', 'fullname', 'grade', 'submissioncomment', 'timemodified', 'timemarked', 'status', 'finalgrade');
if ($uses_outcomes) {
$tablecolumns[] = 'outcome'; // no sorting based on outcomes column
}
$tableheaders = array('',
get_string('fullname'),
get_string('grade'),
get_string('comment', 'assignment'),
get_string('lastmodified').' ('.$course->student.')',
get_string('lastmodified').' ('.$course->teacher.')',
get_string('status'),
get_string('finalgrade', 'grades'));
if ($uses_outcomes) {
$tableheaders[] = get_string('outcome', 'grades');
}
require_once($CFG->libdir.'/tablelib.php');
$table = new flexible_table('mod-assignment-submissions');
$table->define_columns($tablecolumns);
$table->define_headers($tableheaders);
$table->define_baseurl($CFG->wwwroot.'/mod/assignment/submissions.php?id='.$this->cm->id.'&amp;currentgroup='.$currentgroup);
$table->sortable(true, 'lastname');//sorted by lastname by default
$table->collapsible(true);
$table->initialbars(true);
$table->column_suppress('picture');
$table->column_suppress('fullname');
$table->column_class('picture', 'picture');
$table->column_class('fullname', 'fullname');
$table->column_class('grade', 'grade');
$table->column_class('submissioncomment', 'comment');
$table->column_class('timemodified', 'timemodified');
$table->column_class('timemarked', 'timemarked');
$table->column_class('status', 'status');
$table->column_class('finalgrade', 'finalgrade');
if ($uses_outcomes) {
$table->column_class('outcome', 'outcome');
}
$table->set_attribute('cellspacing', '0');
$table->set_attribute('id', 'attempts');
$table->set_attribute('class', 'submissions');
$table->set_attribute('width', '100%');
//$table->set_attribute('align', 'center');
$table->no_sorting('finalgrade');
$table->no_sorting('outcome');
// Start working -- this is necessary as soon as the niceties are over
$table->setup();
if (empty($users)) {
print_heading(get_string('nosubmitusers','assignment'));
return true;
}
/// Construct the SQL
if ($where = $table->get_sql_where()) {
$where .= ' AND ';
}
if ($sort = $table->get_sql_sort()) {
$sort = ' ORDER BY '.$sort;
}
$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 '.$where.'u.id IN ('.implode(',',$users).') ';
$table->pagesize($perpage, count($users));
///offset used to calculate index of student in that particular query, needed for the pop up to know who's next
$offset = $page * $perpage;
$strupdate = get_string('update');
$strgrade = get_string('grade');
$grademenu = make_grades_menu($this->assignment->grade);
if (($ausers = get_records_sql($select.$sql.$sort, $table->get_page_start(), $table->get_page_size())) !== false) {
$grading_info = grade_get_grades($this->course->id, 'mod', 'assignment', $this->assignment->id, array_keys($ausers));
foreach ($ausers as $auser) {
$final_grade = $grading_info->items[0]->grades[$auser->id];
$grademax = $grading_info->items[0]->grademax;
$final_grade->formatted_grade = round($final_grade->grade,2) .' / ' . round($grademax,2);
$locked_overridden = 'locked';
if ($final_grade->overridden) {
$locked_overridden = 'overridden';
}
/// Calculate user status
$auser->status = ($auser->timemarked > 0) && ($auser->timemarked >= $auser->timemodified);
$picture = print_user_picture($auser, $course->id, $auser->picture, false, true);
if (empty($auser->submissionid)) {
$auser->grade = -1; //no submission yet
}
if (!empty($auser->submissionid)) {
///Prints student answer and student modified date
///attach file or print link to student answer, depending on the type of the assignment.
///Refer to print_student_answer in inherited classes.
if ($auser->timemodified > 0) {
$studentmodified = '<div id="ts'.$auser->id.'">'.$this->print_student_answer($auser->id)
. userdate($auser->timemodified).'</div>';
} else {
$studentmodified = '<div id="ts'.$auser->id.'">&nbsp;</div>';
}
///Print grade, dropdown or text
if ($auser->timemarked > 0) {
$teachermodified = '<div id="tt'.$auser->id.'">'.userdate($auser->timemarked).'</div>';
if ($final_grade->locked or $final_grade->overridden) {
$grade = '<div id="g'.$auser->id.'" class="'. $locked_overridden .'">'.$final_grade->formatted_grade.'</div>';
} else if ($quickgrade) {
$menu = choose_from_menu(make_grades_menu($this->assignment->grade),
'menu['.$auser->id.']', $auser->grade,
get_string('nograde'),'',-1,true,false,$tabindex++);
$grade = '<div id="g'.$auser->id.'">'. $menu .'</div>';
} else {
$grade = '<div id="g'.$auser->id.'">'.$this->display_grade($auser->grade).'</div>';
}
} else {
$teachermodified = '<div id="tt'.$auser->id.'">&nbsp;</div>';
if ($final_grade->locked or $final_grade->overridden) {
$grade = '<div id="g'.$auser->id.'" class="'. $locked_overridden .'">'.$final_grade->formatted_grade.'</div>';
} else if ($quickgrade) {
$menu = choose_from_menu(make_grades_menu($this->assignment->grade),
'menu['.$auser->id.']', $auser->grade,
get_string('nograde'),'',-1,true,false,$tabindex++);
$grade = '<div id="g'.$auser->id.'">'.$menu.'</div>';
} else {
$grade = '<div id="g'.$auser->id.'">'.$this->display_grade($auser->grade).'</div>';
}
}
///Print Comment
if ($final_grade->locked or $final_grade->overridden) {
$comment = '<div id="com'.$auser->id.'">'.shorten_text(strip_tags($final_grade->str_feedback),15).'</div>';
} else if ($quickgrade) {
$comment = '<div id="com'.$auser->id.'">'
. '<textarea tabindex="'.$tabindex++.'" name="submissioncomment['.$auser->id.']" id="submissioncomment'
. $auser->id.'" rows="2" cols="20">'.($auser->submissioncomment).'</textarea></div>';
} else {
$comment = '<div id="com'.$auser->id.'">'.shorten_text(strip_tags($auser->submissioncomment),15).'</div>';
}
} else {
$studentmodified = '<div id="ts'.$auser->id.'">&nbsp;</div>';
$teachermodified = '<div id="tt'.$auser->id.'">&nbsp;</div>';
$status = '<div id="st'.$auser->id.'">&nbsp;</div>';
if ($final_grade->locked or $final_grade->overridden) {
$grade = '<div id="g'.$auser->id.'">'.$final_grade->formatted_grade . '</div>';
} else if ($quickgrade) { // allow editing
$menu = choose_from_menu(make_grades_menu($this->assignment->grade),
'menu['.$auser->id.']', $auser->grade,
get_string('nograde'),'',-1,true,false,$tabindex++);
$grade = '<div id="g'.$auser->id.'">'.$menu.'</div>';
} else {
$grade = '<div id="g'.$auser->id.'">-</div>';
}
if ($final_grade->locked or $final_grade->overridden) {
$comment = '<div id="com'.$auser->id.'">'.$final_grade->str_feedback.'</div>';
} else if ($quickgrade) {
$comment = '<div id="com'.$auser->id.'">'
. '<textarea tabindex="'.$tabindex++.'" name="submissioncomment['.$auser->id.']" id="submissioncomment'
. $auser->id.'" rows="2" cols="20">'.($auser->submissioncomment).'</textarea></div>';
} else {
$comment = '<div id="com'.$auser->id.'">&nbsp;</div>';
}
}
if (empty($auser->status)) { /// Confirm we have exclusively 0 or 1
$auser->status = 0;
} else {
$auser->status = 1;
}
$buttontext = ($auser->status == 1) ? $strupdate : $strgrade;
///No more buttons, we use popups ;-).
$popup_url = '/mod/assignment/submissions.php?id='.$this->cm->id
. '&amp;userid='.$auser->id.'&amp;mode=single'.'&amp;offset='.$offset++;
$button = link_to_popup_window ($popup_url, 'grade'.$auser->id, $buttontext, 600, 780,
$buttontext, 'none', true, 'button'.$auser->id);
$status = '<div id="up'.$auser->id.'" class="s'.$auser->status.'">'.$button.'</div>';
$finalgrade = '<span id="finalgrade_'.$auser->id.'">'.$final_grade->str_grade.'</span>';
$outcomes = '';
if ($uses_outcomes) {
foreach($grading_info->outcomes as $n=>$outcome) {
$outcomes .= '<div class="outcome"><label>'.$outcome->name.'</label>';
$options = make_grades_menu(-$outcome->scaleid);
if ($outcome->grades[$auser->id]->locked or !$quickgrade) {
$options[0] = get_string('nooutcome', 'grades');
$outcomes .= ': <span id="outcome_'.$n.'_'.$auser->id.'">'.$options[$outcome->grades[$auser->id]->grade].'</span>';
} else {
$outcomes .= ' ';
$outcomes .= choose_from_menu($options, 'outcome_'.$n.'['.$auser->id.']',
$outcome->grades[$auser->id]->grade, get_string('nooutcome', 'grades'), '', 0, true, false, 0, 'outcome_'.$n.'_'.$auser->id);
}
$outcomes .= '</div>';
}
}
$userlink = '<a href="' . $CFG->wwwroot . '/user/view.php?id=' . $auser->id . '&amp;course=' . $course->id . '">' . fullname($auser) . '</a>';
$row = array($picture, $userlink, $grade, $comment, $studentmodified, $teachermodified, $status, $finalgrade);
if ($uses_outcomes) {
$row[] = $outcomes;
}
$table->add_data($row);
}
}
/// Print quickgrade form around the table
if ($quickgrade){
echo '<form action="submissions.php" id="fastg" method="post">';
echo '<div>';
echo '<input type="hidden" name="id" value="'.$this->cm->id.'" />';
echo '<input type="hidden" name="mode" value="fastgrade" />';
echo '<input type="hidden" name="page" value="'.$page.'" />';
echo '</div>';
}
$table->print_html(); /// Print the whole table
if ($quickgrade){
$lastmailinfo = get_user_preferences('assignment_mailinfo', 1) ? 'checked="checked"' : '';
echo '<div class="fgcontrols">';
echo '<div class="emailnotification">';
echo '<label for="mailinfo">'.get_string('enableemailnotification','assignment').'</label>';
echo '<input type="hidden" name="mailinfo" value="0" />';
echo '<input type="checkbox" id="mailinfo" name="mailinfo" value="1" '.$lastmailinfo.' />';
helpbutton('emailnotification', get_string('enableemailnotification', 'assignment'), 'assignment').'</p></div>';
echo '</div>';
echo '<div class="fastgbutton"><input type="submit" name="fastg" value="'.get_string('saveallfeedback', 'assignment').'" /></div>';
echo '</div>';
echo '</form>';
}
/// End of fast grading form
/// Mini form for setting user preference
echo '<div class="qgprefs">';
echo '<form id="options" action="submissions.php?id='.$this->cm->id.'" method="post"><div>';
echo '<input type="hidden" name="updatepref" value="1" />';
echo '<table id="optiontable">';
echo '<tr><td>';
echo '<label for="perpage">'.get_string('pagesize','assignment').'</label>';
echo '</td>';
echo '<td>';
echo '<input type="text" id="perpage" name="perpage" size="1" value="'.$perpage.'" />';
helpbutton('pagesize', get_string('pagesize','assignment'), 'assignment');
echo '</td></tr>';
echo '<tr><td>';
echo '<label for="quickgrade">'.get_string('quickgrade','assignment').'</label>';
echo '</td>';
echo '<td>';
$checked = $quickgrade ? 'checked="checked"' : '';
echo '<input type="checkbox" id="quickgrade" name="quickgrade" value="1" '.$checked.' />';
helpbutton('quickgrade', get_string('quickgrade', 'assignment'), 'assignment').'</p></div>';
echo '</td></tr>';
echo '<tr><td colspan="2">';
echo '<input type="submit" value="'.get_string('savepreferences').'" />';
echo '</td></tr></table>';
echo '</div></form></div>';
///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 (!$feedback = data_submitted()) { // No incoming data?
return false;
}
///For save and next, we need to know the userid to save, and the userid to go
///We use a new hidden field in the form, and set it to -1. If it's set, we use this
///as the userid to store
if ((int)$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()) {
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;
$posthtml = '<p><font face="sans-serif">'.
'<a href="'.$CFG->wwwroot.'/course/view.php?id='.$this->course->id.'">'.format_string($this->course->shortname).'</a> ->'.
'<a href="'.$CFG->wwwroot.'/mod/assignment/index.php?id='.$this->course->id.'">'.$this->strassignments.'</a> ->'.
'<a href="'.$CFG->wwwroot.'/mod/assignment/view.php?id='.$this->cm->id.'">'.format_string($this->assignment->name).'</a></font></p>';
$posthtml .= '<hr /><font face="sans-serif">';
$posthtml .= '<p>'.get_string('emailteachermailhtml', 'assignment', $info).'</p>';
$posthtml .= '</font><hr />';
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));
$output .= '<img src="'.$CFG->pixpath.'/f/'.$icon.'" class="icon" alt="'.$icon.'" />'.
'<a href="'.$ffurl.'" >'.$file.'</a><br />';
}
}
}
$output = '<div class="files">'.$output.'</div>';
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 $user object
* @return object with properties ->info and ->time
*/
function user_outline($user) {
if ($submission = $this->get_submission($user->id)) {
$result = new object();
$result->info = get_string('grade').': '.$this->display_grade($submission->grade);
$result->time = $submission->timemodified;
return $result;
}
return NULL;
}
/**
* Print complete information about the user's interaction with the assignment
*
* @param $user object
*/
function user_complete($user) {
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 '<br />';
if (empty($submission->timemarked)) {
print_string("notgradedyet", "assignment");
} else {
$this->view_feedback($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');
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 $preferences the complete backup preference object
*
* @return boolean
*/
function backup_one_mod($bf, $preferences) {
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 $submission the assignment submission db record
*
* @return boolean
*/
function backup_one_submission($bf, $preferences, $submission) {
return true;
}
/**
* base implementation for restoring subtype specific information
* for one single module
*
* @param array $info the array representing the xml
* @param object $restore the restore preferences
*
* @return boolean
*/
function restore_one_mod($info, $restore) {
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 $restore the restore preferences
*
* @return boolean
*/
function restore_one_submission($submission, $info, $restore) {
return true;
}
} ////// End of the assignment_base class
/// OTHER STANDARD FUNCTIONS ////////////////////////////////////////////////////////
/**
* Deletes an assignment instance
*
* This is done by calling the delete_instance() method of the assignment type class
*/
function assignment_delete_instance($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->dirroot/mod/assignment/type/$assignment->assignmenttype/assignment.class.php");
$assignmentclass = "assignment_$assignment->assignmenttype";
$ass = new $assignmentclass($mod->id, $assignment, $mod, $course);
return $ass->user_outline($user);
}
/**
* 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->dirroot/mod/assignment/type/$assignment->assignmenttype/assignment.class.php");
$assignmentclass = "assignment_$assignment->assignmenttype";
$ass = new $assignmentclass($mod->id, $assignment, $mod, $course);
return $ass->user_complete($user);
}
/**
* 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
$posthtml = "<p><font face=\"sans-serif\">".
"<a href=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->shortname</a> ->".
"<a href=\"$CFG->wwwroot/mod/assignment/index.php?id=$course->id\">$strassignments</a> ->".
"<a href=\"$CFG->wwwroot/mod/assignment/view.php?id=$mod->id\">".format_string($submission->name,true)."</a></font></p>";
$posthtml .= "<hr /><font face=\"sans-serif\">";
$posthtml .= "<p>".get_string("assignmentmailhtml", "assignment", $assignmentinfo)."</p>";
$posthtml .= "</font><hr />";
} 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 $userid specific user only, 0 mean all
*/
function assignment_update_grades($assignment=null, $userid=0, $nullifnone=true) {
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;
}
}
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, $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 false;
}
print_headline(get_string('newsubmissions', 'assignment').':');
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 $CFG;
echo '<table border="0" cellpadding="3" cellspacing="0" class="assignment-recent">';
echo "<tr><td class=\"userpicture\" valign=\"top\">";
print_user_picture($activity->user->userid, $courseid, $activity->user->picture);
echo "</td><td>";
if ($detail) {
$modname = $modnames[$activity->type];
echo '<div class="title">';
echo "<img src=\"$CFG->modpixpath/assignment/icon.gif\" ".
"class=\"icon\" alt=\"$modname\">";
echo "<a href=\"$CFG->wwwroot/mod/assignment/view.php?id={$activity->cmid}\">{$activity->name}</a>";
echo '</div>';
}
if (isset($activity->grade)) {
echo '<div class="grade">';
echo get_string('grade').': ';
echo $activity->grade;
echo '</div>';
}