-
Notifications
You must be signed in to change notification settings - Fork 5
/
assignment.class.php
335 lines (271 loc) · 14.4 KB
/
assignment.class.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
<?php
/**
* Collaborative real-time editor assignment
* @author Juan Leyva <[email protected]>
*
* Protocol: http://code.google.com/p/google-mobwrite/wiki/Protocol
* More info: http://www.youtube.com/watch?v=S2Hp_1jqpY8
*/
require_once($CFG->libdir.'/formslib.php');
if( !function_exists('json_encode') ) {
require_once($CFG->libdir.'/pear/HTML/AJAX/JSON.php');
}
/**
* Extend the base assignment class for assignments with a real time collaboration editor
*
*/
class assignment_rtcollaboration extends assignment_base {
function assignment_rtcollaboration($cmid='staticonly', $assignment=NULL, $cm=NULL, $course=NULL) {
parent::assignment_base($cmid, $assignment, $cm, $course);
$this->type = 'rtcollaboration';
}
function view() {
global $DB, $USER, $CFG, $OUTPUT, $PAGE;
$groupid = optional_param('group',-1,PARAM_INT);
echo html_writer::script('', $CFG->wwwroot.'/mod/assignment/type/rtcollaboration/diff_match_patch.js');
echo html_writer::script('', $CFG->wwwroot.'/mod/assignment/type/rtcollaboration/mobwrite_core.js');
echo html_writer::script('', $CFG->wwwroot.'/mod/assignment/type/rtcollaboration/mobwrite_form.js');
$context = get_context_instance(CONTEXT_MODULE, $this->cm->id);
require_capability('mod/assignment:view', $context);
$canedit = has_capability('mod/assignment:submit', $context);
$submission = $this->get_submission();
$editable = $this->isopen() && (!$submission || $this->assignment->resubmit || !$submission->timemarked);
$visible = false;
add_to_log($this->course->id, "assignment", "view", "view.php?id={$this->cm->id}", $this->assignment->id, $this->cm->id);
$this->view_header();
if(has_capability('mod/assignment:grade', $context)){
echo '<div class="reportlink"><a href="'.$CFG->wwwroot.'/mod/assignment/type/rtcollaboration/text.php?id='.$this->cm->id.'&mode=textstatistics">'.(get_string('viewusersactivity','assignment_rtcollaboration')).'</a></div>';
}
$this->view_intro();
$this->view_dates();
// Check for user group
$firstview = false;
$userview = $DB->get_record('assignment_rtcollaboration_view',array('assignment'=>$this->assignment->id,'userid'=>$USER->id));
$groupmode = groups_get_activity_groupmode($this->cm);
if(!$userview){
if($groupmode){
$usergroups = groups_get_user_groups($this->course->id);
$countgroups = count($usergroups[0]);
if($countgroups == 0){
$usergroup = 0;
}
else if($countgroups >= 1){
$usergroup = $usergroups[0][0];
}
// else if(! $usergroup || !group_is_member($usergroup)){
// echo get_string('chooseyourgroup','assignment_rtcollaboration');
// groups_print_activity_menu($this->cm, $CFG->wwwroot . "/mod/assignment/view.php?id={$cm->id}");
// $this->view_footer();
// die;
// }
}
else{
$usergroup = 0;
}
}
else{
$usergroup = $userview->groupid;
}
// For visible groups, the text of others groups is displayed
if($groupid > -1 && $groupid != $usergroup && $groupmode && ($groupmode == VISIBLEGROUPS || has_capability('moodle/site:accessallgroups', $context))){
$visible = true;
$editable = false;
}
else{
$groupid = $usergroup;
}
// The user can edit the text and the text is editable
if($editable && $canedit){
// Rich text editor
if($this->assignment->var1){
$yuicssfiles = array('menu/assets/skins/sam/menu', 'button/assets/skins/sam/button', 'fonts/fonts-min', 'container/assets/skins/sam/container', 'editor/assets/skins/sam/editor');
$yuijsfiles = array('yahoo-dom-event/yahoo-dom-event', 'element/element-beta-min', 'container/container-min', 'menu/menu-min', 'button/button-min', 'editor/editor-min');
echo '<link rel="stylesheet" type="text/css" href="'.$CFG->wwwroot.'/mod/assignment/type/rtcollaboration/yuipacked.css" /> ';
echo html_writer::script('', $CFG->wwwroot.'/mod/assignment/type/rtcollaboration/yuipacked.js');
echo html_writer::script('', $CFG->wwwroot.'/mod/assignment/type/rtcollaboration/mobwrite_yuirte.js');
echo "<script type='text/javascript'>
window.onload = function(){
var Dom = YAHOO.util.Dom,
Event = YAHOO.util.Event;
var myConfig = {
height: '500px',
width: '100%',
dompath: true,
animate: true,
focusAtStart: true,
autoHeight: true
};
var myEditor = new YAHOO.widget.Editor('rteditor".$this->assignment->id."', myConfig);
myEditor._defaultToolbar.buttonType = 'basic';
myEditor.render();
var yuiEditor = myEditor;
myEditor.on('editorContentLoaded', function(){
mobwrite.syncUsername = '".$USER->id."';
mobwrite.debug = false;
mobwrite.syncGateway = 'type/rtcollaboration/mobwrite.php?id=".$this->cm->id."&sesskey=".$USER->sesskey."&groupid=".$groupid."';
mobwrite.rteeditors = {'rteditor".$this->assignment->id."_editor' : myEditor};
mobwrite.share('rteditor".$this->assignment->id."_editor');
});
};
</script>";
echo '<form method="post" action="#" id="form1" class="yui-skin-sam">';
echo '<TEXTAREA ID="rteditor'.$this->assignment->id.'" STYLE="width: 100%; height: 100%" rows="30"></TEXTAREA>'; echo '</form>';
}
else{
echo '<script type="text/javascript"><!--
window.onload = function(){
// We can use the full URL. Mobwrite thinks that is a remote server (no the same) so disabled ajax
mobwrite.syncUsername = "'.$USER->id.'";
mobwrite.debug = false;
mobwrite.syncGateway = "type/rtcollaboration/mobwrite.php?id='.$this->cm->id.'&sesskey='.$USER->sesskey.'&groupid='.$groupid.'";
mobwrite.share("rteditor'.$this->assignment->id.'");
}
--></script>';
echo '<TEXTAREA ID="rteditor'.$this->assignment->id.'" STYLE="width: 100%; height: 100%" rows="30"></TEXTAREA>';
}
}
// The user can view the others text (groups are visible)
else if(($editable && !$canedit) || $visible){
$yuijsfiles = array('yahoo-dom-event/yahoo-dom-event','yahoo/yahoo-min','json/json-min','connection/connection-min');
foreach($yuijsfiles as $f)
echo html_writer::script('', $CFG->wwwroot.'/lib/yui/'.$f.'.js');
echo html_writer::script('', $CFG->wwwroot.'/mod/assignment/type/rtcollaboration/replay.js');
echo '<script type="text/javascript"><!--
var pageId = '.$this->cm->id.';
var groupId = '.$groupid.';
var rcollaborationMode = "reviewvisible";
--></script>';
echo '<p><strong>'.get_string('onlyviewpermissions','assignment_rtcollaboration').'</strong></p>';
if($this->assignment->var1){
echo '<div id="maintext" style="border: black solid 1px"></div>';
}
else{
echo '<TEXTAREA ID="maintext" STYLE="width: 100%; height: 100%; background-color: white" rows="30" disabled="disabled"></TEXTAREA>';
}
}
// Print my submission data
else{
print_simple_box(format_text($submission->data1), 'center', '100%');
}
// Back button
echo $OUTPUT->box_start('generalbox centerpara boxwidthnormal boxaligncenter');
echo $OUTPUT->single_button("$CFG->wwwroot/course/view.php?id=".$this->course->id, get_string('finish','assignment_rtcollaboration'));
echo $OUTPUT->box_end();
$this->view_feedback();
$this->view_footer();
}
function print_student_answer($userid, $return=false){
global $DB, $CFG;
if (!$submission = $this->get_submission($userid)) {
return '';
}
list($charsadded, $charsdeleted, $firstedited, $lastedited) = $this->get_chars_edited($userid);
if(!empty($charsadded) || !empty($charsdeleted)){
$stats = get_string('charsadded','assignment_rtcollaboration').' <b>'.$charsadded.'</b><br />';
$stats .= get_string('charsdeleted','assignment_rtcollaboration').' <b>'.$charsdeleted.'</b><br />';
}
else{
$stats = get_string('userhasnotparticipate','assignment_rtcollaboration');
}
$output = '<div class="files">'.
'<img src="'.$CFG->pixpath.'/f/html.gif" class="icon" alt="html" />'.
'<a href="'.$CFG->wwwroot.'/mod/assignment/type/rtcollaboration/text.php?id='.$this->cm->id.'&userid='.
$submission->userid.'" target="_blank">'.(get_string('submission', 'assignment')).'</a><br/>'.
$stats.'</div>';
return $output;
}
function print_user_files($userid, $return=false) {
global $DB, $CFG;
echo $this->print_student_answer($userid, $return);
}
function setup_elements(&$mform) {
global $DB, $CFG, $COURSE;
$ynoptions = array( 0 => get_string('no'), 1 => get_string('yes'));
$mform->addElement('select', 'resubmit', get_string("allowresubmit", "assignment"), $ynoptions);
$mform->addHelpButton('resubmit', 'allowresubmit', 'assignment');
$mform->setDefault('resubmit', 0);
$mform->addElement('select', 'emailteachers', get_string("emailteachers", "assignment"), $ynoptions);
$mform->addHelpButton('emailteachers', 'emailteachers', 'assignment');
$mform->setDefault('emailteachers', 0);
$edoptions = array(get_string("plaintext", "assignment_rtcollaboration"),get_string("yui", "assignment_rtcollaboration"));
$mform->addElement('select', 'var1', get_string("typeofeditor", "assignment_rtcollaboration"), $edoptions);
$mform->setDefault('var1', 0);
}
// We only submit assignments of users with some work done
function submit_pending_assignments($assignments){
global $DB;
if($assignments){
foreach($assignments as $a){
//TODO Add indexes to assignment_rtcollaboration_view
$users = $DB->get_records('assignment_rtcollaboration_view',array('assignment'=>$a->id));
if($users){
foreach($users as $u){
//TODO Get text using group
if(! $text = $DB->get_record('assignment_rtcollaboration_text',array('assignment'=> $a->id)))
continue;
if(! $submission = $DB->get_record('assignment_submissions',array('assignment'=>$a->id,'userid'=>$USER->id))){
$submission = new stdclass;
$submission->assignment = $a->id;
$submission->userid = $u->userid;
$submission->timecreated = time();
$submission->timemodified = $submission->timecreated;
$submission->numfiles = 0;
$submission->data1 = addslashes($text->text);
$submission->data2 = '';
$submission->grade = -1;
$submission->submissioncomment = '';
$submission->format = 0;
$submission->teacher = 0;
$submission->timemarked = 0;
$submission->mailed = 0;
$DB->insert_record('assignment_submissions',$submission);
}
else{
$submission->data1 = addslashes($text->text);
$submission->timemodified = time();
$DB->update_record('assignment_submissions',$submission);
}
}
}
}
}
}
// Check for pending submissions
// Users does not submit theirself theirs assignments
function submit_pending_submissions(){
global $DB, $CFG;
$timenow = time();
$daysecs = 24*60*60;
// In date assignments
$assignments = $DB->get_records_sql("SELECT a.*,t.text,t.groupid FROM {assignment} a LEFT JOIN {assignment_rtcollaboration_text} t ON a.id = t.assignment WHERE ? > a.timeavailable AND ((? < a.timedue AND a.timedue - ? < ?) OR (? > a.timedue AND a.preventlate = ?))",array($timenow, $timenow, $timenow, $daysecs,$timenow,0));
$this->submit_pending_assignments($assignments);
}
function cron(){
$this->submit_pending_submissions();
}
// User group for a existing Text / view
function user_group($userid=0){
global $DB, $USER;
if(!$userid)
$userid = $USER->id;
$userview = $DB->get_record('assignment_rtcollaboration_view',array('assignment'=>$this->assignment->id,'userid'=>$userid));
if($userview){
return $userview->groupid;
}
else{
return 0;
}
}
function get_chars_edited($userid){
global $DB, $CFG;
if($text = $DB->get_record("assignment_rtcollaboration_text", array("assignment"=> $this->assignment->id,'groupid'=>$this->user_group($userid)))){
if($chars = $DB->get_record_sql("SELECT SUM(charsadded) as charsadded, SUM(charsdeleted) as charsdeleted, MAX(timestamp) as lastedited, MIN(timestamp) as firstedited FROM {assignment_rtcollaboration_diff} WHERE textid = ? AND userid = ?",array($text->id, $userid))){
if(!empty($chars->charsadded) || !empty($chars->charsdeleted)){
return array($chars->charsadded, $chars->charsdeleted, $chars->firstedited, $chars->lastedited);
}
}
}
return array(0,0,0,0);
}
}
?>