Proyectos de Subversion Moodle

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<?php
2
defined('MOODLE_INTERNAL') || die();
3
 
4
use core_completion\progress;
5
 
6
global $CFG;
7
require_once $CFG->libdir . '/externallib.php';
8
require_once $CFG->dirroot . '/course/classes/category.php';
9
require_once $CFG->dirroot . '/blocks/moodleblock.class.php';
10
require_once $CFG->dirroot . '/blocks/course_list/block_course_list.php';
11
 
12
class block_cursos_catalogo_ajax_external extends \external_api
13
{
14
 
15
    public static function enrolar_usuario_cursos_catalogo_parameters()
16
    {
17
        return new \external_function_parameters([
18
            'courseid' => new \external_value(PARAM_INT, 'ID del curso', VALUE_DEFAULT, 0)
19
        ]);
20
    }
21
 
22
    public static function enrolar_usuario_cursos_catalogo($courseid)
23
    {
24
        global $USER, $DB, $CFG;
25
 
26
        $userid = $USER->id;
27
        $course = get_course($courseid);
28
        $enrol = false;
29
 
30
        if (! $course) {
31
            return json_encode([
32
                'success' => false,
33
                'data' => 'No existe el curso'
34
            ]);
35
        }
36
 
37
        $enrolmethod = 'self';
38
 
39
        $instance = $DB->get_record('enrol', [
40
            'courseid' => $course->id,
41
            'enrol' => $enrolmethod,
42
            'status' => 0
43
        ]);
44
        if (! $instance) {
45
            return json_encode([
46
                'success' => false,
47
                'data' => 'El curso no permite auto inscribirse'
48
            ]);
49
        }
50
 
51
        try {
52
            $user = $DB->get_record('user', [
53
                'id' => $userid
54
            ]);
55
            $role = $DB->get_record('role', array(
56
                'archetype' => 'student'
57
            ));
58
            $context = context_course::instance($course->id);
59
 
60
            $context = context_course::instance($course->id);
61
            if (is_enrolled($context, $user)) {
62
                return json_encode([
63
                    'success' => true
64
                ]);
65
            } else {
66
                $enrol = enrol_get_plugin($enrolmethod);
67
                if ($enrol === null) {
68
                    return false;
69
                }
70
                $instances = enrol_get_instances($course->id, true);
71
                $manualinstance = null;
72
                foreach ($instances as $instance) {
73
                    if ($instance->name == $enrolmethod) {
74
                        $manualinstance = $instance;
75
                        break;
76
                    }
77
                }
78
                if ($manualinstance !== null) {
79
                    $instanceid = $enrol->add_default_instance($course);
80
                    if ($instanceid === null) {
81
                        $instanceid = $enrol->add_instance($course);
82
                    }
83
                    $instance = $DB->get_record('enrol', array(
84
                        'id' => $instanceid
85
                    ));
86
                }
87
                $enrol->enrol_user($instance, $user->id, $role->id);
88
            }
89
 
90
            return json_encode([
91
                'success' => true
92
            ]);
93
        } catch (\Exception $e) {
94
            error_log($e->getTraceAsString());
95
 
96
            return json_encode([
97
                'success' => false,
98
                'data' => $e->getMessage()
99
            ]);
100
        }
101
    }
102
 
103
    public static function enrolar_usuario_cursos_catalogo_returns()
104
    {
105
        return new \external_value(PARAM_RAW, 'The updated JSON output');
106
    }
107
 
108
    public static function get_cursos_catalogo_parameters()
109
    {
110
        return new \external_function_parameters([
111
            'category_id' => new \external_value(PARAM_INT, 'Categoría de los Cursos', VALUE_DEFAULT, 0),
112
            'search_text' => new \external_value(PARAM_ALPHANUM, 'Palabra de busqueda', VALUE_DEFAULT, ' '),
113
            'page' => new \external_value(PARAM_INT, 'Número de página', VALUE_DEFAULT, 1),
114
            'perpage' => new \external_value(PARAM_INT, 'Cursos por página', VALUE_DEFAULT, 10)
115
        ]);
116
    }
117
 
118
    public static function get_cursos_catalogo($category_id, $search_text, $page = 1, $perpage = 10)
119
    {
120
        global $USER, $DB, $CFG, $OUTPUT, $PAGE;
121
 
122
        $params = self::validate_parameters(self::get_cursos_catalogo_parameters(), compact('category_id', 'search_text', 'page', 'perpage'));
123
 
124
        $page = max(1, $params['page']);
125
        $perpage = max(10, $params['perpage']);
126
 
127
        $userid = $USER->id;
128
        $url_noimage = $CFG->wwwroot . '/theme/' . $PAGE->theme->name . '/pix/coursenoimage.jpg';
129
 
130
        $is_admin = false;
131
        $admins = get_admins();
132
        foreach ($admins as $admin) {
133
            if ($USER->id == $admin->id) {
134
                $is_admin = true;
135
                break;
136
            }
137
        }
138
 
139
        $all_categories = [];
140
        $records = $DB->get_records('course_categories', [
141
            'visible' => 1
142
        ], 'sortorder, name');
143
        foreach ($records as $record) {
144
            $all_categories[$record->id] = $record;
145
        }
146
 
147
        $categories_ids = [];
148
        $category_filter_active = false;
149
        if ($category_id) {
150
            $category_filter_active = true;
151
 
152
            $recordLevel0 = $DB->get_record('course_categories', [
153
                'id' => $category_id
154
            ]);
155
 
156
            if ($recordLevel0) {
157
                array_push($categories_ids, $recordLevel0->id);
158
 
159
                $recordsLevel1 = $DB->get_records('course_categories', [
160
                    'visible' => 1,
161
                    'parent' => $recordLevel0->id
162
                ]);
163
 
164
                foreach ($recordsLevel1 as $recordLevel1) {
165
 
166
                    array_push($categories_ids, $recordLevel1->id);
167
 
168
                    $recordsLevel2 = $DB->get_records('course_categories', [
169
                        'visible' => 1,
170
                        'parent' => $recordLevel1->id
171
                    ]);
172
                    foreach ($recordsLevel2 as $recordLevel2) {
173
                        array_push($categories_ids, $recordLevel2->id);
174
 
175
                        $recordsLevel3 = $DB->get_records('course_categories', [
176
                            'visible' => 2,
177
                            'parent' => $recordLevel2->id
178
                        ]);
179
                        foreach ($recordsLevel3 as $recordLevel3) {
180
                            array_push($categories_ids, $recordLevel3->id);
181
                        }
182
                    }
183
                }
184
            }
185
        }
186
 
187
        $course_ids = [];
188
        $course_category_ids = [];
189
        $courseAvailableForAutoRol = [];
190
 
191
        if ($is_admin) {
192
            $mycourses = get_courses(); // get_courses_search($searchterms, $sort, $page, $perpage, $total_courses);
193
        } else {
194
            $mycourses = enrol_get_users_courses($USER->id);
195
            $courses_with_autoenrol = $DB->get_records('enrol', [
196
                'enrol' => 'self',
197
                'status' => 0
198
            ]);
199
            foreach ($courses_with_autoenrol as $course_with_autoenrol) {
200
                $course = get_course($course_with_autoenrol->courseid);
201
                array_push($mycourses, $course);
202
 
203
                array_push($courseAvailableForAutoRol, $course->id);
204
            }
205
        }
206
 
207
        $mycourses = array_filter($mycourses, function ($course) use ($search_text, $category_filter_active, $categories_ids) {
208
            if (! $course->visible) {
209
                return false;
210
            }
211
 
212
            if ($search_text) {
213
                if (stripos($course->fullname, $search_text) === false) {
214
                    return false;
215
                }
216
            }
217
 
218
            if ($category_filter_active) {
219
                if (! in_array($course->category, $categories_ids)) {
220
                    return false;
221
                }
222
            }
223
 
224
            return true;
225
        });
226
 
227
        usort($mycourses, function ($a, $b) {
228
 
229
            if ($a->timecreated == $b->timecreated) {
230
                return $a->fullname <=> $b->fullname;
231
            } else {
232
                return $a->timecreated > $b->timecreated ? -1 : 1;
233
            }
234
        });
235
 
236
        /*
237
         * $searchterms = array();
238
         * $sort = "c.sortorder DESC";
239
         */
240
 
241
        $total_courses = count($mycourses);
242
        $total_pages = ceil($total_courses / $perpage);
243
        if ($total_pages * $perpage < $total_courses) {
244
            $total_pages++;
245
        }
246
 
247
        $page = isset($page) ? max(1, min($page, $total_pages)) : 1;
248
 
249
        $max_links = 3;
250
        $start_page = max(1, $page - floor($max_links / 2));
251
        $end_page = min($total_pages, $start_page + $max_links - 1);
252
 
253
        if ($end_page - $start_page + 1 < $max_links) {
254
            $start_page = max(1, $end_page - $max_links + 1);
255
        }
256
 
257
        $start = $page == 1 ? 0 : ($page - 1) * $perpage;
258
        $mycourses = array_slice($mycourses, $start, $perpage);
259
 
260
        $courses = [];
261
        /*
262
         * foreach ($course_ids as $course_id) {
263
         * $course = get_course($course_id);
264
         */
265
 
266
        foreach ($mycourses as $course) {
267
 
268
            if ($course instanceof stdClass) {
269
                $coreCourseList = new core_course_list_element($course);
270
            }
271
 
272
            if (! in_array($course->category, $course_category_ids)) {
273
                array_push($course_category_ids, $course->category);
274
            }
275
 
276
            $image = $url_noimage;
277
            foreach ($coreCourseList->get_course_overviewfiles() as $file) {
278
                $isimage = $file->is_valid_image();
279
                $image = file_encode_url("{$CFG->wwwroot}/pluginfile.php", '/' . $file->get_contextid() . '/' . $file->get_component() . '/' . $file->get_filearea() . $file->get_filepath() . $file->get_filename(), ! $isimage);
280
                if (! $isimage) {
281
                    $image = $url_noimage;
282
                }
283
            }
284
 
285
            $lastaccess = null;
286
            $sql = "select timecreated from {logstore_standard_log} where courseid = :courseid and userid = :userid order by id limit {$perpage}";
287
            $params_a = [
288
                'courseid' => $course->id,
289
                'userid' => $userid
290
            ];
291
            $timecreated = $DB->get_field_sql($sql, $params_a);
292
            if ($timecreated) {
293
 
294
                $lastaccess = date('d/m/Y h:i a', $timecreated);
295
            }
296
 
297
            $first_section = 0;
298
            $sections = $DB->get_records('course_sections', [
299
                'course' => $course->id
300
            ], 'section desc', 'id,name,section,sequence,visible');
301
 
302
            foreach ($sections as $section) {
303
                if (! empty($section->section)) {
304
                    $first_section = $section->id;
305
                    break;
306
                }
307
            }
308
 
309
 
310
 
311
            $course_context = context_course::instance($course->id);
312
            $roles = get_user_roles($course_context, $USER->id, true);
313
 
314
 
315
            if (has_capability('moodle/course:manageactivities', $course_context, $USER->id) || has_capability('moodle/course:viewhiddenactivities', $course_context, $USER->id)) {
316
                $editurl = $CFG->wwwroot . '/course/view.php?id=' . $course->id . '&notifyeditingon=1';
317
 
318
                //$editurl = $CFG->wwwroot . '/course/edit.php?id=' . $course->id;
319
            } else {
320
                $editurl = '';
321
            }
322
 
323
            $modules = get_fast_modinfo($course->id)->get_cms();
324
 
325
 
326
 
327
            $viewurl = '';
328
            foreach ($modules as $module) {
329
                if (!$module->uservisible || $module->is_stealth() || empty($module->url)) {
330
                    continue;
331
                }
332
 
333
                $viewurl = new moodle_url($module->url, array(
334
                    'forceview' => 1
335
                ));
336
                break;
337
            }
338
 
339
            $summary = trim(strip_tags($course->summary));
340
 
341
            if (empty($summary)) {
342
                $summary = ' ';
343
            } else if (strlen($summary) > 80) {
344
 
345
                $summary = substr($summary, 0, 80) . '...';
346
            }
347
 
348
            if (empty($editurl) && in_array($course->id, $courseAvailableForAutoRol)) {
349
                $autoenrol = 'yes';
350
            } else {
351
                $autoenrol = '';
352
            }
353
 
354
            $category = $all_categories[$course->category];
355
            if ($category->parent) {
356
                $categoryParent = $all_categories[$category->parent];
357
                if ($categoryParent) {
358
                    $categoryName = $categoryParent->name . ' / ' . $category->name;
359
                } else {
360
                    $categoryName = $category->name;
361
                }
362
            } else {
363
                $categoryName = $category->name;
364
            }
365
            if (strlen($categoryName) > 40) {
366
 
367
                $categoryName = substr($categoryName, 0, 40) . '...';
368
            }
369
 
370
            // echo '<pre>';
371
            // echo '$categoryName = ' . $categoryName . ' $course->category = ' . $course->category;
372
            // echo '</pre>';
373
 
374
            array_push($courses, [
375
                'courseid' => $course->id,
376
                'coursecategory' => $categoryName,
377
                'courseimage' => $image,
378
                'enddate' => $course->enddate,
379
                'fullname' => $course->fullname,
380
                'fullnamedisplay' => get_course_display_name_for_list($course),
381
                'hidden' => false,
382
                'id' => $course->id,
383
                'idnumber' => $course->idnumber,
384
                'isfavourite' => false,
385
                'shortname' => $course->shortname,
386
                'showshortname' => false,
387
                'startdate' => $course->startdate,
388
                'summary' => $summary,
389
                'summaryformat' => $course->summaryformat,
390
                'timeaccess' => $lastaccess,
391
                'viewurl' => $viewurl,
392
                'editurl' => $editurl,
393
                'autoenrol' => $autoenrol,
394
                'visible' => true
395
            ]);
396
        }
397
 
398
        $categories = [];
399
 
400
        foreach ($course_category_ids as $course_category_id) {
401
            $category = $all_categories[$course_category_id];
402
            if ($category) {
403
                array_push($categories, [
404
                    'id' => $category->id,
405
                    'name' => $category->name
406
                ]);
407
            }
408
        }
409
 
410
        // Crear el array de navegación con el rango dinámico
411
        $pagination = [
412
            'current_page' => $page,
413
            'total_pages' => $total_pages,
414
            'has_previous' => $page > 1,
415
            'has_next' => $page < $total_pages,
416
            'previous_page' => $page > 1 ? $page - 1 : null,
417
            'next_page' => $page < $total_pages ? $page + 1 : null,
418
            'pages' => array_map(function ($p) use ($page) {
419
                return [
420
                    'number' => $p,
421
                    'is_current' => $p === $page
422
                ];
423
            }, range($start_page, $end_page))
424
        ];
425
 
426
        // Preparar los datos para la plantilla
427
        $data = [
428
            'courses' => $courses,
429
            'pagination' => $pagination
430
        ];
431
 
432
        $cards = $OUTPUT->render_from_template('block_cursos_catalogo_ajax/cards', $data);
433
 
434
        $data = [
435
            'categories' => $categories
436
        ];
437
 
438
        $badges = $OUTPUT->render_from_template('block_cursos_catalogo_ajax/badges', $data);
439
 
440
        return json_encode([
441
            'success' => true,
442
            'search_text' => $search_text,
443
            'category_id' => $category_id,
444
            'cards' => $cards,
445
            'badges' => $badges,
446
            'courses' => $courses
447
        ]);
448
    }
449
 
450
    public static function get_cursos_catalogo_returns()
451
    {
452
        return new \external_value(PARAM_RAW, 'The updated JSON output');
453
    }
454
}