skill.lib.php 43 KB

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  1. <?php
  2. /* For licensing terms, see /license.txt */
  3. /**
  4. * Class SkillProfile
  5. * @package chamilo.library
  6. */
  7. class SkillProfile extends Model
  8. {
  9. public $columns = array('id', 'name', 'description');
  10. /**
  11. * Constructor
  12. */
  13. public function __construct()
  14. {
  15. $this->table = Database::get_main_table(TABLE_MAIN_SKILL_PROFILE);
  16. $this->table_rel_profile = Database::get_main_table(TABLE_MAIN_SKILL_REL_PROFILE);
  17. }
  18. /**
  19. * @return array
  20. */
  21. public function get_profiles()
  22. {
  23. $sql = "SELECT * FROM $this->table p
  24. INNER JOIN $this->table_rel_profile sp
  25. ON(p.id = sp.profile_id) ";
  26. $result = Database::query($sql);
  27. $profiles = Database::store_result($result, 'ASSOC');
  28. return $profiles;
  29. }
  30. /**
  31. * This function is for editing profile info from profile_id.
  32. * @param int $profileId
  33. * @param string $name
  34. * @param string $description
  35. */
  36. public function updateProfileInfo($profileId, $name, $description)
  37. {
  38. $profileId = intval($profileId);
  39. $sql = "UPDATE $this->table SET
  40. name = '$name',
  41. description = '$description'
  42. WHERE id = $profileId ";
  43. $result = Database::query($sql);
  44. return $result;
  45. }
  46. /**
  47. * Call the save method of the parent class and the SkillRelProfile object
  48. * @param array Params
  49. * @param bool Whether to show the query in parent save() method
  50. * @return mixed Profile ID or false if incomplete params
  51. */
  52. public function save($params, $show_query = false)
  53. {
  54. if (!empty($params)) {
  55. $profile_id = parent::save($params, $show_query);
  56. if ($profile_id) {
  57. $skill_rel_profile = new SkillRelProfile();
  58. if (isset($params['skills'])) {
  59. foreach ($params['skills'] as $skill_id) {
  60. $attributes = array('skill_id' => $skill_id, 'profile_id' => $profile_id);
  61. $skill_rel_profile->save($attributes);
  62. }
  63. }
  64. return $profile_id;
  65. }
  66. }
  67. return false;
  68. }
  69. /**
  70. * Delete a skill profile
  71. * @param int $id The skill profile id
  72. * @return boolean Whether delete a skill profile
  73. */
  74. public function delete($id)
  75. {
  76. Database::delete(
  77. $this->table_rel_profile,
  78. array(
  79. 'profile_id' => $id
  80. )
  81. );
  82. return parent::delete($id);
  83. }
  84. }
  85. /**
  86. * Class SkillRelProfile
  87. */
  88. class SkillRelProfile extends Model
  89. {
  90. public $columns = array('id', 'skill_id', 'profile_id');
  91. /**
  92. * Constructor
  93. */
  94. public function __construct()
  95. {
  96. $this->table = Database::get_main_table(TABLE_MAIN_SKILL_REL_PROFILE);
  97. $this->tableProfile = Database::get_main_table(TABLE_MAIN_SKILL_PROFILE);
  98. }
  99. /**
  100. * @param int $profileId
  101. * @return array
  102. */
  103. public function get_skills_by_profile($profileId)
  104. {
  105. $profileId = intval($profileId);
  106. $skills = $this->get_all(array('where' => array('profile_id = ? ' => $profileId)));
  107. $return = array();
  108. if (!empty($skills)) {
  109. foreach ($skills as $skill_data) {
  110. $return[] = $skill_data['skill_id'];
  111. }
  112. }
  113. return $return;
  114. }
  115. /**
  116. * This function is for getting profile info from profile_id.
  117. * @param int $profileId
  118. */
  119. public function getProfileInfo($profileId)
  120. {
  121. $sql = "SELECT * FROM $this->table p
  122. INNER JOIN $this->tableProfile pr
  123. ON (pr.id = p.profile_id)
  124. WHERE p.profile_id = ".intval($profileId);
  125. $result = Database::query($sql);
  126. $profileData = Database::fetch_array($result, 'ASSOC');
  127. return $profileData;
  128. }
  129. }
  130. /**
  131. * Class SkillRelSkill
  132. */
  133. class SkillRelSkill extends Model
  134. {
  135. public $columns = array('skill_id', 'parent_id', 'relation_type', 'level');
  136. /**
  137. * Constructor
  138. */
  139. public function __construct()
  140. {
  141. $this->table = Database::get_main_table(TABLE_MAIN_SKILL_REL_SKILL);
  142. }
  143. /**
  144. * Gets an element
  145. * @param int $id
  146. * @return array
  147. */
  148. public function get_skill_info($id)
  149. {
  150. if (empty($id)) {
  151. return array();
  152. }
  153. $result = Database::select(
  154. '*',
  155. $this->table,
  156. array('where' => array('skill_id = ?' => intval($id))),
  157. 'first'
  158. );
  159. return $result;
  160. }
  161. public function get_skill_parents($skill_id, $add_child_info = true)
  162. {
  163. $skill_id = intval($skill_id);
  164. $sql = 'SELECT child.* FROM '.$this->table.' child
  165. LEFT JOIN '.$this->table.' parent
  166. ON child.parent_id = parent.skill_id
  167. WHERE child.skill_id = '.$skill_id.' ';
  168. $result = Database::query($sql);
  169. $skill = Database::store_result($result, 'ASSOC');
  170. $skill = isset($skill[0]) ? $skill[0] : null;
  171. $parents = array();
  172. if (!empty($skill)) {
  173. if ($skill['parent_id'] != null) {
  174. $parents = self::get_skill_parents($skill['parent_id']);
  175. }
  176. if ($add_child_info) {
  177. $parents[] = $skill;
  178. }
  179. }
  180. return $parents;
  181. }
  182. /**
  183. * @param int $skill_id
  184. * @return array
  185. */
  186. public function get_direct_parents($skill_id)
  187. {
  188. $skill_id = intval($skill_id);
  189. $sql = 'SELECT parent_id as skill_id FROM '.$this->table.'
  190. WHERE skill_id = '.$skill_id.' ';
  191. $result = Database::query($sql);
  192. $skill = Database::store_result($result, 'ASSOC');
  193. $skill = isset($skill[0]) ? $skill[0] : null;
  194. $parents = array();
  195. if (!empty($skill)) {
  196. $parents[] = $skill;
  197. }
  198. return $parents;
  199. }
  200. /**
  201. * @param int $skill_id
  202. * @param bool $load_user_data
  203. * @param bool $user_id
  204. * @return array
  205. */
  206. public function get_children($skill_id, $load_user_data = false, $user_id = false)
  207. {
  208. $skills = $this->find('all', array('where' => array('parent_id = ? ' => $skill_id)));
  209. $skill_obj = new Skill();
  210. $skill_rel_user = new SkillRelUser();
  211. if ($load_user_data) {
  212. $passed_skills = $skill_rel_user->get_user_skills($user_id);
  213. $done_skills = array();
  214. foreach ($passed_skills as $done_skill) {
  215. $done_skills[] = $done_skill['skill_id'];
  216. }
  217. }
  218. if (!empty($skills)) {
  219. foreach ($skills as &$skill) {
  220. $skill['data'] = $skill_obj->get($skill['skill_id']);
  221. if (isset($skill['data']) && !empty($skill['data'])) {
  222. if (!empty($done_skills)) {
  223. $skill['data']['passed'] = 0;
  224. if (in_array($skill['skill_id'], $done_skills)) {
  225. $skill['data']['passed'] = 1;
  226. }
  227. }
  228. } else {
  229. $skill = null;
  230. }
  231. }
  232. }
  233. return $skills;
  234. }
  235. /**
  236. * @param array $params
  237. * @return bool
  238. */
  239. public function update_by_skill($params)
  240. {
  241. $result = Database::update($this->table, $params, array('skill_id = ? ' => $params['skill_id']));
  242. if ($result) {
  243. return true;
  244. }
  245. return false;
  246. }
  247. /**
  248. * @param int $skill_id
  249. * @param int $parent_id
  250. * @return bool
  251. */
  252. public function relation_exists($skill_id, $parent_id)
  253. {
  254. $result = $this->find(
  255. 'all',
  256. array('where' => array('skill_id = ? AND parent_id = ?' => array($skill_id, $parent_id)))
  257. );
  258. if (!empty($result)) {
  259. return true;
  260. }
  261. return false;
  262. }
  263. }
  264. /**
  265. * Class SkillRelGradebook
  266. */
  267. class SkillRelGradebook extends Model
  268. {
  269. public $columns = array('id', 'gradebook_id', 'skill_id');
  270. public function __construct()
  271. {
  272. $this->table = Database::get_main_table(TABLE_MAIN_SKILL_REL_GRADEBOOK);
  273. }
  274. /**
  275. * @param int $gradebook_id
  276. * @param int $skill_id
  277. * @return bool
  278. */
  279. public function exists_gradebook_skill($gradebook_id, $skill_id)
  280. {
  281. $result = $this->find(
  282. 'all',
  283. array('where' => array('gradebook_id = ? AND skill_id = ?' => array($gradebook_id, $skill_id)))
  284. );
  285. if (!empty($result)) {
  286. return true;
  287. }
  288. return false;
  289. }
  290. /**
  291. * Gets an element
  292. */
  293. public function get_skill_info($skill_id, $gradebook_id)
  294. {
  295. if (empty($skill_id)) {
  296. return array();
  297. }
  298. $result = Database::select(
  299. '*',
  300. $this->table,
  301. array('where' => array('skill_id = ? AND gradebook_id = ? ' => array($skill_id, $gradebook_id))),
  302. 'first'
  303. );
  304. return $result;
  305. }
  306. /**
  307. * @param int $skill_id
  308. * @param array $gradebook_list
  309. */
  310. public function update_gradebooks_by_skill($skill_id, $gradebook_list)
  311. {
  312. $original_gradebook_list = $this->find(
  313. 'all',
  314. array('where' => array('skill_id = ?' => array($skill_id)))
  315. );
  316. $gradebooks_to_remove = array();
  317. $gradebooks_to_add = array();
  318. $original_gradebook_list_ids = array();
  319. if (!empty($original_gradebook_list)) {
  320. foreach ($original_gradebook_list as $gradebook) {
  321. if (!in_array($gradebook['gradebook_id'], $gradebook_list)) {
  322. $gradebooks_to_remove[] = $gradebook['id'];
  323. }
  324. }
  325. foreach ($original_gradebook_list as $gradebook_item) {
  326. $original_gradebook_list_ids[] = $gradebook_item['gradebook_id'];
  327. }
  328. }
  329. if (!empty($gradebook_list)) {
  330. foreach ($gradebook_list as $gradebook_id) {
  331. if (!in_array($gradebook_id, $original_gradebook_list_ids)) {
  332. $gradebooks_to_add[] = $gradebook_id;
  333. }
  334. }
  335. }
  336. if (!empty($gradebooks_to_remove)) {
  337. foreach ($gradebooks_to_remove as $id) {
  338. $this->delete($id);
  339. }
  340. }
  341. if (!empty($gradebooks_to_add)) {
  342. foreach ($gradebooks_to_add as $gradebook_id) {
  343. $attributes = array('skill_id' => $skill_id, 'gradebook_id' => $gradebook_id);
  344. $this->save($attributes);
  345. }
  346. }
  347. }
  348. /**
  349. * @param array $params
  350. * @return bool|void
  351. */
  352. public function update_by_skill($params)
  353. {
  354. $skill_info = $this->exists_gradebook_skill($params['gradebook_id'], $params['skill_id']);
  355. if ($skill_info) {
  356. return;
  357. } else {
  358. $result = $this->save($params);
  359. }
  360. if ($result) {
  361. return true;
  362. }
  363. return false;
  364. }
  365. }
  366. /**
  367. * Class SkillRelUser
  368. */
  369. class SkillRelUser extends Model
  370. {
  371. public $columns = array('id', 'user_id', 'skill_id', 'acquired_skill_at', 'assigned_by', 'course_id', 'session_id');
  372. /**
  373. * Constructor
  374. */
  375. public function __construct()
  376. {
  377. $this->table = Database::get_main_table(TABLE_MAIN_SKILL_REL_USER);
  378. }
  379. /**
  380. * @param array $skill_list
  381. * @return array
  382. */
  383. public function get_user_by_skills($skill_list)
  384. {
  385. $users = array();
  386. if (!empty($skill_list)) {
  387. $skill_list = array_map('intval', $skill_list);
  388. $skill_list = implode("', '", $skill_list);
  389. $sql = "SELECT user_id FROM {$this->table}
  390. WHERE skill_id IN ('$skill_list') ";
  391. $result = Database::query($sql);
  392. $users = Database::store_result($result, 'ASSOC');
  393. }
  394. return $users;
  395. }
  396. /**
  397. * Get the achieved skills for the user
  398. * @param int $userId
  399. * @param int $courseId Optional. The course id
  400. * @param int $sessionId Optional. The session id
  401. * @return array The skill list. Otherwise return false
  402. */
  403. public function get_user_skills($userId, $courseId = 0, $sessionId = 0)
  404. {
  405. if (empty($userId)) {
  406. return array();
  407. }
  408. $courseId = intval($courseId);
  409. $sessionId = intval($sessionId);
  410. $whereConditions = array(
  411. 'user_id = ? ' => intval($userId)
  412. );
  413. if ($courseId > 0) {
  414. $whereConditions['AND course_id = ? '] = $courseId;
  415. $whereConditions['AND session_id = ?'] = $sessionId;
  416. }
  417. $result = Database::select(
  418. 'skill_id',
  419. $this->table,
  420. array(
  421. 'where' => $whereConditions
  422. ),
  423. 'all'
  424. );
  425. return $result;
  426. }
  427. /**
  428. * Get the relation data between user and skill
  429. * @param int $userId The user id
  430. * @param int $skillId The skill id
  431. * @param int $courseId The course id
  432. * @param int $sessionId Optional. The session id
  433. * @return array The relation data. Otherwise return false
  434. */
  435. public function getByUserAndSkill($userId, $skillId, $courseId, $sessionId = 0)
  436. {
  437. $where = array(
  438. 'user_id = ? AND skill_id = ? AND course_id = ? AND session_id = ?' => array(
  439. intval($userId),
  440. intval($skillId),
  441. intval($courseId),
  442. intval($sessionId)
  443. )
  444. );
  445. return Database::select('*', $this->table, array(
  446. 'where' => $where
  447. ), 'first');
  448. }
  449. }
  450. /**
  451. * Class Skill
  452. */
  453. class Skill extends Model
  454. {
  455. public $columns = array('id', 'name', 'description', 'access_url_id', 'short_code', 'icon', 'criteria');
  456. public $required = array('name');
  457. /** Array of colours by depth, for the coffee wheel. Each depth has 4 col */
  458. /*var $colours = array(
  459. 0 => array('#f9f0ab', '#ecc099', '#e098b0', '#ebe378'),
  460. 1 => array('#d5dda1', '#4a5072', '#8dae43', '#72659d'),
  461. 2 => array('#b28647', '#2e6093', '#393e64', '#1e8323'),
  462. 3 => array('#9f6652', '#9f6652', '#9f6652', '#9f6652'),
  463. 4 => array('#af643c', '#af643c', '#af643c', '#af643c'),
  464. 5 => array('#72659d', '#72659d', '#72659d', '#72659d'),
  465. 6 => array('#8a6e9e', '#8a6e9e', '#8a6e9e', '#8a6e9e'),
  466. 7 => array('#92538c', '#92538c', '#92538c', '#92538c'),
  467. 8 => array('#2e6093', '#2e6093', '#2e6093', '#2e6093'),
  468. 9 => array('#3a5988', '#3a5988', '#3a5988', '#3a5988'),
  469. 10 => array('#393e64', '#393e64', '#393e64', '#393e64'),
  470. );*/
  471. public function __construct()
  472. {
  473. $this->table = Database::get_main_table(TABLE_MAIN_SKILL);
  474. $this->table_user = Database::get_main_table(TABLE_MAIN_USER);
  475. $this->table_skill_rel_gradebook = Database::get_main_table(TABLE_MAIN_SKILL_REL_GRADEBOOK);
  476. $this->table_skill_rel_user = Database::get_main_table(TABLE_MAIN_SKILL_REL_USER);
  477. $this->table_course = Database::get_main_table(TABLE_MAIN_COURSE);
  478. $this->table_skill_rel_skill = Database::get_main_table(TABLE_MAIN_SKILL_REL_SKILL);
  479. $this->table_gradebook = Database::get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
  480. $this->sessionTable = Database::get_main_table(TABLE_MAIN_SESSION);
  481. }
  482. /**
  483. * @param int $id
  484. * @return array
  485. */
  486. public function get_skill_info($id)
  487. {
  488. $skill_rel_skill = new SkillRelSkill();
  489. $skill_info = $this->get($id);
  490. if (!empty($skill_info)) {
  491. $skill_info['extra'] = $skill_rel_skill->get_skill_info($id);
  492. $skill_info['gradebooks'] = self::get_gradebooks_by_skill($id);
  493. }
  494. return $skill_info;
  495. }
  496. /**
  497. * @param array $skill_list
  498. * @return array
  499. */
  500. public function get_skills_info($skill_list)
  501. {
  502. $skill_list = array_map('intval', $skill_list);
  503. $skill_list = implode("', '", $skill_list);
  504. $sql = "SELECT * FROM {$this->table} WHERE id IN ('$skill_list') ";
  505. $result = Database::query($sql);
  506. $users = Database::store_result($result, 'ASSOC');
  507. return $users;
  508. }
  509. /**
  510. * @param bool $load_user_data
  511. * @param bool $user_id
  512. * @param int $id
  513. * @param int $parent_id
  514. * @return array
  515. */
  516. public function get_all($load_user_data = false, $user_id = false, $id = null, $parent_id = null)
  517. {
  518. $id_condition = '';
  519. if (!empty($id)) {
  520. $id = intval($id);
  521. $id_condition = " WHERE s.id = $id";
  522. }
  523. if (!empty($parent_id)) {
  524. $parent_id = intval($parent_id);
  525. if (empty($id_condition)) {
  526. $id_condition = " WHERE ss.parent_id = $parent_id";
  527. } else {
  528. $id_condition = " AND ss.parent_id = $parent_id";
  529. }
  530. }
  531. $sql = "SELECT s.id, s.name, s.description, ss.parent_id, ss.relation_type, s.icon, s.short_code
  532. FROM {$this->table} s
  533. INNER JOIN {$this->table_skill_rel_skill} ss
  534. ON (s.id = ss.skill_id) $id_condition
  535. ORDER BY ss.id, ss.parent_id";
  536. $result = Database::query($sql);
  537. $skills = array();
  538. if (Database::num_rows($result)) {
  539. while ($row = Database::fetch_array($result, 'ASSOC')) {
  540. $skill_rel_skill = new SkillRelSkill();
  541. $a = $skill_rel_skill->get_skill_parents($row['id']);
  542. $row['level'] = count($a) - 1;
  543. $row['gradebooks'] = self::get_gradebooks_by_skill($row['id']);
  544. $skills[$row['id']] = $row;
  545. }
  546. }
  547. //Load all children of the parent_id
  548. if (!empty($skills) && !empty($parent_id)) {
  549. foreach ($skills as $skill) {
  550. $children = self::get_all($load_user_data, $user_id, $id, $skill['id']);
  551. if (!empty($children)) {
  552. //$skills = array_merge($skills, $children);
  553. $skills = $skills + $children;
  554. }
  555. }
  556. }
  557. return $skills;
  558. }
  559. /**
  560. * @param int $skill_id
  561. * @return array|resource
  562. */
  563. public function get_gradebooks_by_skill($skill_id)
  564. {
  565. $skill_id = intval($skill_id);
  566. $sql = "SELECT g.* FROM {$this->table_gradebook} g
  567. INNER JOIN {$this->table_skill_rel_gradebook} sg
  568. ON g.id = sg.gradebook_id
  569. WHERE sg.skill_id = $skill_id";
  570. $result = Database::query($sql);
  571. $result = Database::store_result($result, 'ASSOC');
  572. return $result;
  573. }
  574. /**
  575. * Get one level childrens
  576. *
  577. * @param int $skill_id
  578. * @param bool $load_user_data
  579. * @return array
  580. */
  581. public function get_children($skill_id, $load_user_data = false)
  582. {
  583. $skill_rel_skill = new SkillRelSkill();
  584. if ($load_user_data) {
  585. $user_id = api_get_user_id();
  586. $skills = $skill_rel_skill->get_children($skill_id, true, $user_id);
  587. } else {
  588. $skills = $skill_rel_skill->get_children($skill_id);
  589. }
  590. return $skills;
  591. }
  592. /**
  593. * Get all children of the current node (recursive)
  594. * @param int $skillId
  595. * @return array
  596. */
  597. public function get_all_children($skillId)
  598. {
  599. $skill_rel_skill = new SkillRelSkill();
  600. $children = $skill_rel_skill->get_children($skillId);
  601. foreach ($children as $child) {
  602. $subChildren = $this->get_all_children($child['skill_id']);
  603. }
  604. if (!empty($subChildren)) {
  605. $children = array_merge($children, $subChildren);
  606. }
  607. return $children;
  608. }
  609. /**
  610. * Gets all parents from from the wanted skill
  611. */
  612. public function get_parents($skill_id)
  613. {
  614. $skill_rel_skill = new SkillRelSkill();
  615. $skills = $skill_rel_skill->get_skill_parents($skill_id, true);
  616. foreach ($skills as &$skill) {
  617. $skill['data'] = self::get($skill['skill_id']);
  618. }
  619. return $skills;
  620. }
  621. /**
  622. * All direct parents
  623. */
  624. public function get_direct_parents($skill_id)
  625. {
  626. $skill_rel_skill = new SkillRelSkill();
  627. $skills = $skill_rel_skill->get_direct_parents($skill_id, true);
  628. foreach($skills as &$skill) {
  629. $skill['data'] = self::get($skill['skill_id']);
  630. $skill_info2 = $skill_rel_skill->get_skill_info($skill['skill_id']);
  631. $skill['data']['parent_id'] = $skill_info2['parent_id'];
  632. }
  633. return $skills;
  634. }
  635. /**
  636. * Adds a new skill
  637. * @param array $params
  638. * @return bool|null
  639. */
  640. public function add($params)
  641. {
  642. if (!isset($params['parent_id'])) {
  643. $params['parent_id'] = 1;
  644. }
  645. if (!is_array($params['parent_id'])) {
  646. $params['parent_id'] = array($params['parent_id']);
  647. }
  648. $skill_rel_skill = new SkillRelSkill();
  649. $skill_rel_gradebook = new SkillRelGradebook();
  650. //Saving name, description
  651. $skill_id = $this->save($params);
  652. if ($skill_id) {
  653. //Saving skill_rel_skill (parent_id, relation_type)
  654. foreach ($params['parent_id'] as $parent_id) {
  655. $relation_exists = $skill_rel_skill->relation_exists($skill_id, $parent_id);
  656. if (!$relation_exists) {
  657. $attributes = array(
  658. 'skill_id' => $skill_id,
  659. 'parent_id' => $parent_id,
  660. 'relation_type' => (isset($params['relation_type'])?$params['relation_type']:0),
  661. //'level' => $params['level'],
  662. );
  663. $skill_rel_skill->save($attributes);
  664. }
  665. }
  666. if (!empty($params['gradebook_id'])) {
  667. foreach ($params['gradebook_id'] as $gradebook_id) {
  668. $attributes = array();
  669. $attributes['gradebook_id'] = $gradebook_id;
  670. $attributes['skill_id'] = $skill_id;
  671. $skill_rel_gradebook->save($attributes);
  672. }
  673. }
  674. return $skill_id;
  675. }
  676. return null;
  677. }
  678. /**
  679. * @param int $user_id
  680. * @param int $gradebook_id
  681. * @param int $courseId
  682. * @param int $sessionId
  683. */
  684. public function add_skill_to_user($user_id, $gradebook_id, $courseId = 0, $sessionId = 0)
  685. {
  686. $skill_gradebook = new SkillRelGradebook();
  687. $skill_rel_user = new SkillRelUser();
  688. $skill_gradebooks = $skill_gradebook->get_all(array('where' => array('gradebook_id = ?' => $gradebook_id)));
  689. if (!empty($skill_gradebooks)) {
  690. foreach ($skill_gradebooks as $skill_gradebook) {
  691. $user_has_skill = $this->user_has_skill($user_id, $skill_gradebook['skill_id'], $courseId, $sessionId);
  692. if (!$user_has_skill) {
  693. $params = array(
  694. 'user_id' => $user_id,
  695. 'skill_id' => $skill_gradebook['skill_id'],
  696. 'acquired_skill_at' => api_get_utc_datetime(),
  697. 'course_id' => intval($courseId),
  698. 'session_id' => intval($sessionId)
  699. );
  700. $skill_rel_user->save($params);
  701. }
  702. }
  703. }
  704. }
  705. /* Deletes a skill */
  706. public function delete($skill_id)
  707. {
  708. /*$params = array('skill_id' => $skill_id);
  709. $skill_rel_skill = new SkillRelSkill();
  710. $skills = $skill_rel_skill->get_all(array('where'=>array('skill_id = ?' =>$skill_id)));
  711. $skill_rel_profile = new SkillRelProfile();
  712. $skill_rel_gradebook = new SkillRelGradebook();
  713. $skill_rel_user = new SkillRelUser();
  714. $this->delete($skill_id);
  715. $skill_rel_gradebook->delete($params);*/
  716. }
  717. /**
  718. * @param array $params
  719. * @return null
  720. */
  721. public function edit($params)
  722. {
  723. if (!isset($params['parent_id'])) {
  724. $params['parent_id'] = 1;
  725. }
  726. $skill_rel_skill = new SkillRelSkill();
  727. $skill_rel_gradebook = new SkillRelGradebook();
  728. //Saving name, description
  729. $this->update($params);
  730. $skill_id = $params['id'];
  731. if ($skill_id) {
  732. //Saving skill_rel_skill (parent_id, relation_type)
  733. if (!is_array($params['parent_id'])) {
  734. $params['parent_id'] = array($params['parent_id']);
  735. }
  736. foreach ($params['parent_id'] as $parent_id) {
  737. $relation_exists = $skill_rel_skill->relation_exists($skill_id, $parent_id);
  738. if (!$relation_exists) {
  739. $attributes = array(
  740. 'skill_id' => $skill_id,
  741. 'parent_id' => $parent_id,
  742. 'relation_type' => $params['relation_type'],
  743. //'level' => $params['level'],
  744. );
  745. $skill_rel_skill->update_by_skill($attributes);
  746. }
  747. }
  748. $skill_rel_gradebook->update_gradebooks_by_skill($skill_id, $params['gradebook_id']);
  749. return $skill_id;
  750. }
  751. return null;
  752. }
  753. /**
  754. * Get user's skills
  755. *
  756. * @param int $userId User's id
  757. */
  758. public function get_user_skills($user_id, $get_skill_data = false)
  759. {
  760. $user_id = intval($user_id);
  761. $sql = 'SELECT DISTINCT s.id, s.name, s.icon
  762. FROM '.$this->table_skill_rel_user.' u
  763. INNER JOIN '.$this->table.' s
  764. ON u.skill_id = s.id
  765. WHERE user_id = '.$user_id;
  766. $result = Database::query($sql);
  767. $skills = Database::store_result($result, 'ASSOC');
  768. $clean_skill = array();
  769. if (!empty($skills)) {
  770. foreach ($skills as $skill) {
  771. if ($get_skill_data) {
  772. $iconThumb = null;
  773. if (!empty($skill['icon'])) {
  774. $iconThumb = sprintf(
  775. "badges/%s-small.png",
  776. sha1($skill['name'])
  777. );
  778. }
  779. $clean_skill[$skill['id']] = array_merge(
  780. $skill,
  781. array(
  782. 'iconThumb' => $iconThumb
  783. )
  784. );
  785. } else {
  786. $clean_skill[$skill['id']] = $skill['id'];
  787. }
  788. }
  789. }
  790. return $clean_skill;
  791. }
  792. /**
  793. * @param int $user_id
  794. * @param int $skill_id
  795. * @param bool $return_flat_array
  796. * @param bool $add_root
  797. * @return array|null
  798. */
  799. public function get_skills_tree($user_id = null, $skill_id = null, $return_flat_array = false, $add_root = false)
  800. {
  801. if ($skill_id == 1) {
  802. $skill_id = 0;
  803. }
  804. if (isset($user_id) && !empty($user_id)) {
  805. $skills = $this->get_all(true, $user_id, null, $skill_id);
  806. } else {
  807. $skills = $this->get_all(false, false, null, $skill_id);
  808. }
  809. $original_skill = $this->list = $skills;
  810. // Show 1 item
  811. if (!empty($skill_id)) {
  812. if ($add_root) {
  813. if (!empty($skill_id)) {
  814. // Default root node
  815. $skills[1] = array(
  816. 'id' => '1',
  817. 'name' => get_lang('Root'),
  818. 'parent_id' => '0'
  819. );
  820. $skill_info = $this->get_skill_info($skill_id);
  821. // 2nd node
  822. $skills[$skill_id] = $skill_info;
  823. // Uncomment code below to hide the searched skill
  824. $skills[$skill_id]['data']['parent_id'] = $skill_info['parent_id'];
  825. $skills[$skill_id]['parent_id'] = 1;
  826. }
  827. }
  828. }
  829. $refs = array();
  830. $skills_tree = null;
  831. // Create references for all nodes
  832. $flat_array = array();
  833. $family = array();
  834. if (!empty($skills)) {
  835. foreach ($skills as &$skill) {
  836. if ($skill['parent_id'] == 0) {
  837. $skill['parent_id'] = 'root';
  838. }
  839. // because except main keys (id, name, children) others keys
  840. // are not saved while in the space tree
  841. $skill['data'] = array('parent_id' => $skill['parent_id']);
  842. // If a short code was defined, send the short code to replace
  843. // skill name (to shorten the text in the wheel)
  844. if (!empty($skill['short_code'])) {
  845. $skill['data']['name'] = $skill['short_code'];
  846. }
  847. // In order to paint all members of a family with the same color
  848. if (empty($skill_id)) {
  849. if ($skill['parent_id'] == 1) {
  850. $family[$skill['id']] = $this->get_all_children($skill['id']);
  851. }
  852. } else {
  853. if ($skill['parent_id'] == $skill_id) {
  854. $family[$skill['id']] = $this->get_all_children($skill['id']);
  855. }
  856. /*if ($skill_id == $skill['id']) {
  857. $skill['parent_id'] = 1;
  858. }*/
  859. }
  860. if (!isset($skill['data']['real_parent_id'])) {
  861. $skill['data']['real_parent_id'] = $skill['parent_id'];
  862. }
  863. // User achieved the skill (depends in the gradebook with certification)
  864. $skill['data']['achieved'] = false;
  865. if ($user_id) {
  866. $skill['data']['achieved'] = $this->user_has_skill($user_id, $skill['id']);
  867. }
  868. // Check if the skill has related gradebooks
  869. $skill['data']['skill_has_gradebook'] = false;
  870. if (isset($skill['gradebooks']) && !empty($skill['gradebooks'])) {
  871. $skill['data']['skill_has_gradebook'] = true;
  872. }
  873. $refs[$skill['id']] = &$skill;
  874. $flat_array[$skill['id']] = &$skill;
  875. }
  876. // Checking family value
  877. $family_id = 1;
  878. $new_family_array = array();
  879. foreach ($family as $main_family_id => $family_items) {
  880. if (!empty($family_items)) {
  881. foreach ($family_items as $item) {
  882. $new_family_array[$item['skill_id']] = $family_id;
  883. }
  884. }
  885. $new_family_array[$main_family_id] = $family_id;
  886. $family_id++;
  887. }
  888. if (empty($original_skill)) {
  889. $refs['root']['children'][0] = $skills[1];
  890. $skills[$skill_id]['data']['family_id'] = 1;
  891. $refs['root']['children'][0]['children'][0] = $skills[$skill_id];
  892. $flat_array[$skill_id] = $skills[$skill_id];
  893. } else {
  894. // Moving node to the children index of their parents
  895. foreach ($skills as $my_skill_id => &$skill) {
  896. if (isset($new_family_array[$skill['id']])) {
  897. $skill['data']['family_id'] = $new_family_array[$skill['id']];
  898. }
  899. $refs[$skill['parent_id']]['children'][] = &$skill;
  900. $flat_array[$my_skill_id] = $skill;
  901. }
  902. }
  903. $skills_tree = array(
  904. 'name' => get_lang('SkillRootName'),
  905. 'id' => 'root',
  906. 'children' => $refs['root']['children'],
  907. 'data' => array()
  908. );
  909. }
  910. if ($return_flat_array) {
  911. return $flat_array;
  912. }
  913. unset($skills);
  914. return $skills_tree;
  915. }
  916. /**
  917. * Get skills tree as a simplified JSON structure
  918. * @param int user id
  919. * @param int skill id
  920. * @param bool return a flat array or not
  921. * @param int depth of the skills
  922. *
  923. */
  924. public function get_skills_tree_json($user_id = null, $skill_id = null, $return_flat_array = false, $main_depth = 2)
  925. {
  926. $tree = $this->get_skills_tree($user_id, $skill_id, $return_flat_array, true);
  927. $simple_tree = array();
  928. if (!empty($tree['children'])) {
  929. foreach ($tree['children'] as $element) {
  930. $simple_tree[] = array(
  931. 'name' => $element['name'],
  932. 'children' => $this->get_skill_json($element['children'], 1, $main_depth)
  933. );
  934. }
  935. }
  936. return json_encode($simple_tree[0]['children']);
  937. }
  938. /**
  939. * Get JSON element
  940. * @param array $subtree
  941. * @param int $depth
  942. * @param int $max_depth
  943. * @return array|null
  944. */
  945. public function get_skill_json($subtree, $depth = 1, $max_depth = 2)
  946. {
  947. $simple_sub_tree = array();
  948. if (is_array($subtree)) {
  949. $counter = 1;
  950. foreach ($subtree as $elem) {
  951. $tmp = array();
  952. $tmp['name'] = $elem['name'];
  953. $tmp['id'] = $elem['id'];
  954. $tmp['isSearched'] = self::isSearched($elem['id']);
  955. if (isset($elem['children']) && is_array($elem['children'])) {
  956. $tmp['children'] = $this->get_skill_json($elem['children'], $depth + 1, $max_depth);
  957. } else {
  958. //$tmp['colour'] = $this->colours[$depth][rand(0,3)];
  959. }
  960. if ($depth > $max_depth) {
  961. continue;
  962. }
  963. $tmp['depth'] = $depth;
  964. $tmp['counter'] = $counter;
  965. $counter++;
  966. if (isset($elem['data']) && is_array($elem['data'])) {
  967. foreach ($elem['data'] as $key => $item) {
  968. $tmp[$key] = $item;
  969. }
  970. }
  971. $simple_sub_tree[] = $tmp;
  972. }
  973. return $simple_sub_tree;
  974. }
  975. return null;
  976. }
  977. /**
  978. * @param int $user_id
  979. * @return bool
  980. */
  981. public function get_user_skill_ranking($user_id)
  982. {
  983. $user_id = intval($user_id);
  984. $sql = "SELECT count(skill_id) count FROM {$this->table} s
  985. INNER JOIN {$this->table_skill_rel_user} su
  986. ON (s.id = su.skill_id)
  987. WHERE user_id = $user_id";
  988. $result = Database::query($sql);
  989. if (Database::num_rows($result)) {
  990. $result = Database::fetch_row($result);
  991. return $result[0];
  992. }
  993. return false;
  994. }
  995. /**
  996. * @param $start
  997. * @param $limit
  998. * @param $sidx
  999. * @param $sord
  1000. * @param $where_condition
  1001. * @return array
  1002. */
  1003. public function get_user_list_skill_ranking($start, $limit, $sidx, $sord, $where_condition)
  1004. {
  1005. $start = intval($start);
  1006. $limit = intval($limit);
  1007. /* ORDER BY $sidx $sord */
  1008. $sql = "SELECT *, @rownum:=@rownum+1 rank FROM (
  1009. SELECT u.user_id, firstname, lastname, count(username) skills_acquired
  1010. FROM {$this->table} s INNER JOIN {$this->table_skill_rel_user} su ON (s.id = su.skill_id)
  1011. INNER JOIN {$this->table_user} u ON u.user_id = su.user_id, (SELECT @rownum:=0) r
  1012. WHERE 1=1 $where_condition
  1013. GROUP BY username
  1014. ORDER BY skills_acquired desc
  1015. LIMIT $start , $limit) AS T1, (SELECT @rownum:=0) r";
  1016. $result = Database::query($sql);
  1017. if (Database::num_rows($result)) {
  1018. return Database::store_result($result, 'ASSOC');
  1019. }
  1020. return array();
  1021. }
  1022. /**
  1023. * @return int
  1024. */
  1025. public function get_user_list_skill_ranking_count()
  1026. {
  1027. $sql = "SELECT count(*) FROM (
  1028. SELECT count(distinct 1)
  1029. FROM {$this->table} s
  1030. INNER JOIN {$this->table_skill_rel_user} su
  1031. ON (s.id = su.skill_id)
  1032. INNER JOIN {$this->table_user} u
  1033. ON u.user_id = su.user_id
  1034. GROUP BY username
  1035. ) as T1";
  1036. $result = Database::query($sql);
  1037. if (Database::num_rows($result)) {
  1038. $result = Database::fetch_row($result);
  1039. return $result[0];
  1040. }
  1041. return 0;
  1042. }
  1043. /**
  1044. * @param string $course_code
  1045. * @return int
  1046. */
  1047. public function get_count_skills_by_course($course_code)
  1048. {
  1049. $sql = "SELECT count(skill_id) as count
  1050. FROM {$this->table_gradebook} g
  1051. INNER JOIN {$this->table_skill_rel_gradebook} sg
  1052. ON g.id = sg.gradebook_id
  1053. WHERE course_code = '$course_code'";
  1054. $result = Database::query($sql);
  1055. if (Database::num_rows($result)) {
  1056. $result = Database::fetch_row($result);
  1057. return $result[0];
  1058. }
  1059. return 0;
  1060. }
  1061. /**
  1062. * @param int $skill_id
  1063. * @return array
  1064. */
  1065. public function get_courses_by_skill($skill_id)
  1066. {
  1067. $skill_id = intval($skill_id);
  1068. $sql = "SELECT c.title, c.code
  1069. FROM {$this->table_gradebook} g
  1070. INNER JOIN {$this->table_skill_rel_gradebook} sg
  1071. ON g.id = sg.gradebook_id
  1072. INNER JOIN {$this->table_course} c
  1073. ON c.code = g.course_code
  1074. WHERE sg.skill_id = $skill_id
  1075. AND (g.session_id IS NULL OR g.session_id = 0)";
  1076. $result = Database::query($sql);
  1077. return Database::store_result($result, 'ASSOC');
  1078. }
  1079. /**
  1080. * Check if the user has the skill
  1081. * @param int $userId The user id
  1082. * @param int $skillId The skill id
  1083. * @param int $courseId Optional. The course id
  1084. * @param int $sessionId Optional. The session id
  1085. * @return boolean Whether the user has the skill return true. Otherwise return false
  1086. */
  1087. public function user_has_skill($userId, $skillId, $courseId = 0, $sessionId = 0)
  1088. {
  1089. $courseId = intval($courseId);
  1090. $sessionId = intval($sessionId);
  1091. $whereConditions = array(
  1092. 'user_id = ? ' => intval($userId),
  1093. 'AND skill_id = ? ' => intval($skillId)
  1094. );
  1095. if ($courseId > 0) {
  1096. $whereConditions['AND course_id = ? '] = $courseId;
  1097. $whereConditions['AND session_id = ? '] = $sessionId;
  1098. }
  1099. $result = Database::select(
  1100. 'COUNT(1) AS qty',
  1101. $this->table_skill_rel_user, array(
  1102. 'where' => $whereConditions
  1103. ),
  1104. 'first'
  1105. );
  1106. if ($result != false) {
  1107. if ($result['qty'] > 0) {
  1108. return true;
  1109. }
  1110. }
  1111. return false;
  1112. }
  1113. /**
  1114. * Check if a skill is searched
  1115. * @param int $id The skill id
  1116. * @return boolean Whether el skill is searched return true. Otherwise return false
  1117. */
  1118. public static function isSearched($id)
  1119. {
  1120. $id = intval($id);
  1121. if (empty($id)) {
  1122. return false;
  1123. }
  1124. $skillRelProfileTable = Database::get_main_table(TABLE_MAIN_SKILL_REL_PROFILE);
  1125. $result = Database::select(
  1126. 'COUNT( DISTINCT `skill_id`) AS qty',
  1127. $skillRelProfileTable,
  1128. array(
  1129. 'where' => array(
  1130. 'skill_id = ?' => $id
  1131. )
  1132. ),
  1133. 'first'
  1134. );
  1135. if ($result === false) {
  1136. return false;
  1137. }
  1138. if ($result['qty'] > 0) {
  1139. return true;
  1140. }
  1141. return false;
  1142. }
  1143. /**
  1144. * Get the achieved skills by course
  1145. * @param int $courseId The course id
  1146. * @return array The skills list
  1147. */
  1148. public function listAchievedByCourse($courseId)
  1149. {
  1150. $courseId = intval($courseId);
  1151. if ($courseId == 0) {
  1152. return array();
  1153. }
  1154. $list = array();
  1155. $sql = "SELECT
  1156. course.id c_id,
  1157. course.title c_name,
  1158. course.directory c_directory,
  1159. user.user_id,
  1160. user.lastname,
  1161. user.firstname,
  1162. user.username,
  1163. skill.id skill_id,
  1164. skill.name skill_name,
  1165. sru.acquired_skill_at
  1166. FROM {$this->table_skill_rel_user} AS sru
  1167. INNER JOIN {$this->table_course}
  1168. ON sru.course_id = course.id
  1169. INNER JOIN {$this->table_user}
  1170. ON sru.user_id = user.user_id
  1171. INNER JOIN {$this->table}
  1172. ON sru.skill_id = skill.id
  1173. WHERE course.id = $courseId";
  1174. $result = Database::query($sql);
  1175. while ($row = Database::fetch_assoc($result)) {
  1176. $list[] = $row;
  1177. }
  1178. return $list;
  1179. }
  1180. /**
  1181. * Get the users list who achieved a skill
  1182. * @param int $skillId The skill id
  1183. * @return array The users list
  1184. */
  1185. public function listUsersWhoAchieved($skillId)
  1186. {
  1187. $skillId = intval($skillId);
  1188. if ($skillId == 0) {
  1189. return array();
  1190. }
  1191. $list = array();
  1192. $sql = "SELECT
  1193. course.id c_id,
  1194. course.title c_name,
  1195. course.directory c_directory,
  1196. user.user_id,
  1197. user.lastname,
  1198. user.firstname,
  1199. user.username,
  1200. skill.id skill_id,
  1201. skill.name skill_name,
  1202. sru.acquired_skill_at
  1203. FROM {$this->table_skill_rel_user} AS sru
  1204. INNER JOIN {$this->table_course}
  1205. ON sru.course_id = course.id
  1206. INNER JOIN {$this->table_user}
  1207. ON sru.user_id = user.user_id
  1208. INNER JOIN {$this->table}
  1209. ON sru.skill_id = skill.id
  1210. WHERE skill.id = $skillId ";
  1211. $result = Database::query($sql);
  1212. while ($row = Database::fetch_assoc($result)) {
  1213. $list[] = $row;
  1214. }
  1215. return $list;
  1216. }
  1217. /**
  1218. * Get the session list where the user can achieve a skill
  1219. * @param int $skillId The skill id
  1220. * @return array
  1221. */
  1222. public function getSessionsBySkill($skillId)
  1223. {
  1224. $skillId = intval($skillId);
  1225. $sql = "SELECT s.id, s.name
  1226. FROM {$this->table_gradebook} g
  1227. INNER JOIN {$this->table_skill_rel_gradebook} sg ON g.id = sg.gradebook_id
  1228. INNER JOIN {$this->sessionTable} s ON g.session_id = s.id
  1229. WHERE sg.skill_id = $skillId
  1230. AND g.session_id > 0";
  1231. $result = Database::query($sql);
  1232. return Database::store_result($result, 'ASSOC');
  1233. }
  1234. }