Gitlab CSE Unil

page_editor.php 13.6 KB
Newer Older
M. Chardon's avatar
init  
M. Chardon committed
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
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * This file contains the editor class for the assignfeedback_editpdfplus plugin
 *
 * @package   assignfeedback_editpdfplus
 * @copyright 2012 Davo Smith
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

namespace assignfeedback_editpdfplus;

/**
 * This class performs crud operations on comments and annotations from a page of a response.
 *
 * No capability checks are done - they should be done by the calling class.
 *
 * @package   assignfeedback_editpdfplus
 * @copyright 2012 Davo Smith
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class page_editor {

    /**
     * Get all comments for a page.
     * @param int $gradeid
     * @param int $pageno
     * @param bool $draft
     * @return comment[]
     */
    public static function get_comments($gradeid, $pageno, $draft) {
        global $DB;

        $comments = array();
        $params = array('gradeid'=>$gradeid, 'pageno'=>$pageno, 'draft'=>1);
        if (!$draft) {
            $params['draft'] = 0;
        }
        $records = $DB->get_records('assignfeedback_editpp_cmnt', $params);
        foreach ($records as $record) {
            array_push($comments, new comment($record));
        }

        return $comments;
    }

    /**
     * Set all comments for a page.
     * @param int $gradeid
     * @param int $pageno
     * @param comment[] $comments
     * @return int - the number of comments.
     */
    public static function set_comments($gradeid, $pageno, $comments) {
        global $DB;

        $DB->delete_records('assignfeedback_editpp_cmnt', array('gradeid'=>$gradeid, 'pageno'=>$pageno, 'draft'=>1));

        $added = 0;
        foreach ($comments as $record) {
            // Force these.
            if (!($record instanceof comment)) {
                $comment = new comment($record);
            } else {
                $comment = $record;
            }
            if (trim($comment->rawtext) === '') {
                continue;
            }
            $comment->gradeid = $gradeid;
            $comment->pageno = $pageno;
            $comment->draft = 1;
            if (self::add_comment($comment)) {
                $added++;
            }
        }

        return $added;
    }

    /**
     * Get a single comment by id.
     * @param int $commentid
     * @return comment or false
     */
    public static function get_comment($commentid) {
        $record = $DB->get_record('assignfeedback_editpp_cmnt', array('id'=>$commentid), '*', IGNORE_MISSING);
        if ($record) {
            return new comment($record);
        }
        return false;
    }

    /**
     * Add a comment to a page.
     * @param comment $comment
     * @return bool
     */
    public static function add_comment(comment $comment) {
        global $DB;
        $comment->id = null;
        return $DB->insert_record('assignfeedback_editpp_cmnt', $comment);
    }

    /**
     * Remove a comment from a page.
     * @param int $commentid
     * @return bool
     */
    public static function remove_comment($commentid) {
        global $DB;
        return $DB->delete_records('assignfeedback_editpp_cmnt', array('id'=>$commentid));
    }

    /**
     * Get all annotations for a page.
     * @param int $gradeid
     * @param int $pageno
     * @param bool $draft
     * @return annotation[]
     */
    public static function get_annotations($gradeid, $pageno, $draft) {
        global $DB;

        $params = array('gradeid'=>$gradeid, 'pageno'=>$pageno, 'draft'=>1);
        if (!$draft) {
            $params['draft'] = 0;
        }
        $annotations = array();
        $records = $DB->get_records('assignfeedback_editpp_annot', $params);
        foreach ($records as $record) {
            array_push($annotations, new annotation($record));
        }

        return $annotations;
    }

    /**
     * Set all annotations for a page.
     * @param int $gradeid
     * @param int $pageno
     * @param annotation[] $annotations
     * @return int - the number of annotations.
     */
    public static function set_annotations($gradeid, $pageno, $annotations) {
        global $DB;

        $DB->delete_records('assignfeedback_editpp_annot', array('gradeid' => $gradeid, 'pageno' => $pageno, 'draft' => 1));
        $added = 0;
        foreach ($annotations as $record) {
            // Force these.
            if (!($record instanceof annotation)) {
                $annotation = new annotation($record);
            } else {
                $annotation = $record;
            }
            $annotation->gradeid = $gradeid;
            $annotation->pageno = $pageno;
            $annotation->draft = 1;
            if (self::add_annotation($annotation)) {
                $added++;
            }
        }

        return $added;
    }

    /**
     * Get a single annotation by id.
     * @param int $annotationid
     * @return annotation or false
     */
    public static function get_annotation($annotationid) {
        global $DB;

        $record = $DB->get_record('assignfeedback_editpp_annot', array('id'=>$annotationid), '*', IGNORE_MISSING);
        if ($record) {
            return new annotation($record);
        }
        return false;
    }

    /**
     * Unrelease drafts
     * @param int $gradeid
     * @return bool
     */
    public static function unrelease_drafts($gradeid) {
        global $DB;

        // Delete the non-draft annotations and comments.
        $result = $DB->delete_records('assignfeedback_editpp_cmnt', array('gradeid'=>$gradeid, 'draft'=>0));
        $result = $DB->delete_records('assignfeedback_editpp_annot', array('gradeid'=>$gradeid, 'draft'=>0)) && $result;
        return $result;
    }

    /**
     * Release the draft comments and annotations to students.
     * @param int $gradeid
     * @return bool
     */
    public static function release_drafts($gradeid) {
        global $DB;

        // Delete the previous non-draft annotations and comments.
        $DB->delete_records('assignfeedback_editpp_cmnt', array('gradeid'=>$gradeid, 'draft'=>0));
        $DB->delete_records('assignfeedback_editpp_annot', array('gradeid'=>$gradeid, 'draft'=>0));

        // Copy all the draft annotations and comments to non-drafts.
        $records = $DB->get_records('assignfeedback_editpp_annot', array('gradeid'=>$gradeid, 'draft'=>1));
        foreach ($records as $record) {
            unset($record->id);
            $record->draft = 0;
            $DB->insert_record('assignfeedback_editpp_annot', $record);
        }
        $records = $DB->get_records('assignfeedback_editpp_cmnt', array('gradeid'=>$gradeid, 'draft'=>1));
        foreach ($records as $record) {
            unset($record->id);
            $record->draft = 0;
            $DB->insert_record('assignfeedback_editpp_cmnt', $record);
        }

        return true;
    }

    /**
     * Has annotations or comments.
     * @param int $gradeid
     * @return bool
     */
    public static function has_annotations_or_comments($gradeid, $includedraft) {
        global $DB;
        $params = array('gradeid'=>$gradeid);
        if (!$includedraft) {
            $params['draft'] = 0;
        }
        if ($DB->count_records('assignfeedback_editpp_cmnt', $params)) {
            return true;
        }
        if ($DB->count_records('assignfeedback_editpp_annot', $params)) {
            return true;
        }
        return false;
    }

    /**
     * Aborts all draft annotations and reverts to the last version released to students.
     * @param int $gradeid
     * @return bool
     */
    public static function revert_drafts($gradeid) {
        global $DB;

        // Delete the previous non-draft annotations and comments.
        $DB->delete_records('assignfeedback_editpp_cmnt', array('gradeid'=>$gradeid, 'draft'=>1));
        $DB->delete_records('assignfeedback_editpp_annot', array('gradeid'=>$gradeid, 'draft'=>1));

        // Copy all the draft annotations and comments to non-drafts.
        $records = $DB->get_records('assignfeedback_editpp_annot', array('gradeid'=>$gradeid, 'draft'=>0));
        foreach ($records as $record) {
            unset($record->id);
            $record->draft = 0;
            $DB->insert_record('assignfeedback_editpp_annot', $record);
        }
        $records = $DB->get_records('assignfeedback_editpp_cmnt', array('gradeid'=>$gradeid, 'draft'=>0));
        foreach ($records as $record) {
            unset($record->id);
            $record->draft = 0;
            $DB->insert_record('assignfeedback_editpp_annot', $record);
        }

        return true;
    }

    /**
     * Add a annotation to a page.
     * @param annotation $annotation
     * @return bool
     */
    public static function add_annotation(annotation $annotation) {
        global $DB;

        $annotation->id = null;
        return $DB->insert_record('assignfeedback_editpp_annot', $annotation);
    }

    /**
     * Remove a annotation from a page.
     * @param int $annotationid
     * @return bool
     */
    public static function remove_annotation($annotationid) {
        global $DB;

        return $DB->delete_records('assignfeedback_editpp_annot', array('id'=>$annotationid));
    }

    /**
     * Copy annotations, comments, pages, and other required content from the source user to the current group member
     * being procssed when using applytoall.
     *
     * @param int|\assign $assignment
     * @param stdClass $grade
     * @param int $sourceuserid
     * @return bool
     */
    public static function copy_drafts_from_to($assignment, $grade, $sourceuserid) {
        global $DB;

        // Delete any existing annotations and comments from current user.
        $DB->delete_records('assignfeedback_editpp_annot', array('gradeid' => $grade->id));
        $DB->delete_records('assignfeedback_editpp_cmnt', array('gradeid' => $grade->id));
        // Get gradeid, annotations and comments from sourceuserid.
        $sourceusergrade = $assignment->get_user_grade($sourceuserid, true, $grade->attemptnumber);
        $annotations = $DB->get_records('assignfeedback_editpp_annot', array('gradeid' => $sourceusergrade->id, 'draft' => 1));
        $comments = $DB->get_records('assignfeedback_editpp_cmnt', array('gradeid' => $sourceusergrade->id, 'draft' => 1));
        $contextid = $assignment->get_context()->id;
        $sourceitemid = $sourceusergrade->id;

        // Add annotations and comments to current user to generate feedback file.
        foreach ($annotations as $annotation) {
            $annotation->gradeid = $grade->id;
            $DB->insert_record('assignfeedback_editpp_annot', $annotation);
        }
        foreach ($comments as $comment) {
            $comment->gradeid = $grade->id;
            $DB->insert_record('assignfeedback_editpp_cmnt', $comment);
        }

        $fs = get_file_storage();

        // Copy the stamp files.
        self::replace_files_from_to($fs, $contextid, $sourceitemid, $grade->id, document_services::STAMPS_FILEAREA, true);

        // Copy the PAGE_IMAGE_FILEAREA files.
        self::replace_files_from_to($fs, $contextid, $sourceitemid, $grade->id, document_services::PAGE_IMAGE_FILEAREA);

        return true;
    }

    /**
     * Replace the area files in the specified area with those in the source item id.
     *
     * @param \file_storage $fs The file storage class
     * @param int $contextid The ID of the context for the assignment.
     * @param int $sourceitemid The itemid to copy from - typically the source grade id.
     * @param int $itemid The itemid to copy to - typically the target grade id.
     * @param string $area The file storage area.
     * @param bool $includesubdirs Whether to copy the content of sub-directories too.
     */
    public static function replace_files_from_to($fs, $contextid, $sourceitemid, $itemid, $area, $includesubdirs = false) {
        $component = 'assignfeedback_editpdfplus';
        // Remove the existing files within this area.
        $fs->delete_area_files($contextid, $component, $area, $itemid);

        // Copy the files from the source area.
        if ($files = $fs->get_area_files($contextid, $component, $area, $sourceitemid,
                                         "filename", $includesubdirs)) {
            foreach ($files as $file) {
                $newrecord = new \stdClass();
                $newrecord->contextid = $contextid;
                $newrecord->itemid = $itemid;
                $fs->create_file_from_storedfile($newrecord, $file);
            }
        }
    }

    /**
     * Delete the draft annotations and comments.
     *
     * This is intended to be used when the version of the PDF has changed and the annotations
     * might not be relevant any more, therefore we should delete them.
     *
     * @param int $gradeid The grade ID.
     * @return bool
     */
    public static function delete_draft_content($gradeid) {
        global $DB;
        $conditions = array('gradeid' => $gradeid, 'draft' => 1);
        $result = $DB->delete_records('assignfeedback_editpp_annot', $conditions);
        $result = $result && $DB->delete_records('assignfeedback_editpp_cmnt', $conditions);
        return $result;
    }
}