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/mod/quiz/restorelib.php

https://bitbucket.org/ceu/moodle_demo
PHP | 867 lines | 574 code | 99 blank | 194 comment | 124 complexity | 6380181f2cbf3880e4378c9b969cffed MD5 | raw file
Possible License(s): BSD-3-Clause, LGPL-2.0, LGPL-2.1 
    

  1. <?php // $Id: restorelib.php,v 1.90.6.2 2007/12/21 15:38:38 tjhunt Exp $

    2. 

  2.     //This php script contains all the stuff to restore quiz mods

    3. 

  3. 

    4. 

  4. // Todo:

    5. 

  5. 

    6. 

  6.     // whereever it says "/// We have to recode the .... field" we should put in a check

    7. 

  7.     // to see if the recoding was successful and throw an appropriate error otherwise

    8. 

  8. 

    9. 

  9. //This is the "graphical" structure of the quiz mod:

    10. 

  10.     //To see, put your terminal to 160cc

    11. 

  11. 

    12. 

  12.     //

    13. 

  13.     //                           quiz

    14. 

  14.     //                        (CL,pk->id)

    15. 

  15.     //                            |

    16. 

  16.     //           -------------------------------------------------------------------

    17. 

  17.     //           |                    |                        |                    |

    18. 

  18.     //           |               quiz_grades                   |        quiz_question_versions

    19. 

  19.     //           |           (UL,pk->id,fk->quiz)              |         (CL,pk->id,fk->quiz)

    20. 

  20.     //           |                                             |

    21. 

  21.     //      quiz_attempts                          quiz_question_instances

    22. 

  22.     //  (UL,pk->id,fk->quiz)                    (CL,pk->id,fk->quiz,question)

    23. 

  23.     //

    24. 

  24.     // Meaning: pk->primary key field of the table

    25. 

  25.     //          fk->foreign key to link with parent

    26. 

  26.     //          nt->nested field (recursive data)

    27. 

  27.     //          SL->site level info

    28. 

  28.     //          CL->course level info

    29. 

  29.     //          UL->user level info

    30. 

  30.     //          files->table may have files

    31. 

  31.     //

    32. 

  32.     //-----------------------------------------------------------

    33. 

  33. 

    34. 

  34.     // When we restore a quiz we also need to restore the questions and possibly

    35. 

  35.     // the data about student interaction with the questions. The functions to do

    36. 

  36.     // that are included with the following library

    37. 

  37.     include_once("$CFG->dirroot/question/restorelib.php");

    38. 

  38. 

    39. 

  39.     function quiz_restore_mods($mod,$restore) {

    40. 

  40. 

    41. 

  41.         global $CFG;

    42. 

  42. 

    43. 

  43.         $status = true;

    44. 

  44. 

    45. 

  45.         //Hook to call Moodle < 1.5 Quiz Restore

    46. 

  46.         if ($restore->backup_version < 2005043000) {

    47. 

  47.             include_once("restorelibpre15.php");

    48. 

  48.             return quiz_restore_pre15_mods($mod,$restore);

    49. 

  49.         }

    50. 

  50. 

    51. 

  51.         //Get record from backup_ids

    52. 

  52.         $data = backup_getid($restore->backup_unique_code,$mod->modtype,$mod->id);

    53. 

  53. 

    54. 

  54.         if ($data) {

    55. 

  55.             //Now get completed xmlized object

    56. 

  56.             $info = $data->info;

    57. 

  57.             //if necessary, write to restorelog and adjust date/time fields

    58. 

  58.             if ($restore->course_startdateoffset) {

    59. 

  59.                 restore_log_date_changes('Quiz', $restore, $info['MOD']['#'], array('TIMEOPEN', 'TIMECLOSE'));

    60. 

  60.             }            

    61. 

  61.             //traverse_xmlize($info);                                                                     //Debug

    62. 

  62.             //print_object ($GLOBALS['traverse_array']);                                                  //Debug

    63. 

  63.             //$GLOBALS['traverse_array']="";                                                              //Debug

    64. 

  64. 

    65. 

  65.             //Now, build the QUIZ record structure

    66. 

  66.             $quiz = new stdClass;

    67. 

  67.             $quiz->course = $restore->course_id;

    68. 

  68.             $quiz->name = backup_todb($info['MOD']['#']['NAME']['0']['#']);

    69. 

  69.             $quiz->intro = backup_todb($info['MOD']['#']['INTRO']['0']['#']); 

    70. 

  70.             $quiz->timeopen = backup_todb($info['MOD']['#']['TIMEOPEN']['0']['#']);

    71. 

  71.             $quiz->timeclose = backup_todb($info['MOD']['#']['TIMECLOSE']['0']['#']);

    72. 

  72.             $quiz->optionflags = backup_todb($info['MOD']['#']['OPTIONFLAGS']['0']['#']);

    73. 

  73.             $quiz->penaltyscheme = backup_todb($info['MOD']['#']['PENALTYSCHEME']['0']['#']);

    74. 

  74.             $quiz->attempts = backup_todb($info['MOD']['#']['ATTEMPTS_NUMBER']['0']['#']);

    75. 

  75.             $quiz->attemptonlast = backup_todb($info['MOD']['#']['ATTEMPTONLAST']['0']['#']);

    76. 

  76.             $quiz->grademethod = backup_todb($info['MOD']['#']['GRADEMETHOD']['0']['#']);

    77. 

  77.             $quiz->decimalpoints = backup_todb($info['MOD']['#']['DECIMALPOINTS']['0']['#']);

    78. 

  78.             $quiz->review = backup_todb($info['MOD']['#']['REVIEW']['0']['#']);

    79. 

  79.             $quiz->questionsperpage = backup_todb($info['MOD']['#']['QUESTIONSPERPAGE']['0']['#']);

    80. 

  80.             $quiz->shufflequestions = backup_todb($info['MOD']['#']['SHUFFLEQUESTIONS']['0']['#']);

    81. 

  81.             $quiz->shuffleanswers = backup_todb($info['MOD']['#']['SHUFFLEANSWERS']['0']['#']);

    82. 

  82.             $quiz->questions = backup_todb($info['MOD']['#']['QUESTIONS']['0']['#']);

    83. 

  83.             $quiz->sumgrades = backup_todb($info['MOD']['#']['SUMGRADES']['0']['#']);

    84. 

  84.             $quiz->grade = backup_todb($info['MOD']['#']['GRADE']['0']['#']);

    85. 

  85.             $quiz->timecreated = backup_todb($info['MOD']['#']['TIMECREATED']['0']['#']);

    86. 

  86.             $quiz->timemodified = backup_todb($info['MOD']['#']['TIMEMODIFIED']['0']['#']);

    87. 

  87.             $quiz->timelimit = backup_todb($info['MOD']['#']['TIMELIMIT']['0']['#']);

    88. 

  88.             $quiz->password = backup_todb($info['MOD']['#']['PASSWORD']['0']['#']);

    89. 

  89.             $quiz->subnet = backup_todb($info['MOD']['#']['SUBNET']['0']['#']);

    90. 

  90.             $quiz->popup = backup_todb($info['MOD']['#']['POPUP']['0']['#']);

    91. 

  91.             $quiz->delay1 = isset($info['MOD']['#']['DELAY1']['0']['#'])?backup_todb($info['MOD']['#']['DELAY1']['0']['#']):'';

    92. 

  92.             $quiz->delay2 = isset($info['MOD']['#']['DELAY2']['0']['#'])?backup_todb($info['MOD']['#']['DELAY2']['0']['#']):'';

    93. 

  93.             //We have to recode the questions field (a list of questions id and pagebreaks)

    94. 

  94.             $quiz->questions = quiz_recode_layout($quiz->questions, $restore);

    95. 

  95. 

    96. 

  96.             //The structure is equal to the db, so insert the quiz

    97. 

  97.             $newid = insert_record ("quiz",$quiz);

    98. 

  98. 

    99. 

  99.             //Do some output

    100. 

  100.             if (!defined('RESTORE_SILENTLY')) {

    101. 

  101.                 echo "<li>".get_string("modulename","quiz")." \"".format_string(stripslashes($quiz->name),true)."\"</li>";

    102. 

  102.             }

    103. 

  103.             backup_flush(300);

    104. 

  104. 

    105. 

  105.             if ($newid) {

    106. 

  106.                 //We have the newid, update backup_ids

    107. 

  107.                 backup_putid($restore->backup_unique_code,$mod->modtype,

    108. 

  108.                              $mod->id, $newid);

    109. 

  109.                 //We have to restore the question_instances now (course level table)

    110. 

  110.                 $status = quiz_question_instances_restore_mods($newid,$info,$restore);

    111. 

  111.                 //We have to restore the feedback now (course level table)

    112. 

  112.                 $status = quiz_feedback_restore_mods($newid, $info, $restore, $quiz);

    113. 

  113.                 //We have to restore the question_versions now (course level table)

    114. 

  114.                 $status = quiz_question_versions_restore_mods($newid,$info,$restore);

    115. 

  115.                 //Now check if want to restore user data and do it.

    116. 

  116.                 if (restore_userdata_selected($restore,'quiz',$mod->id)) {

    117. 

  117.                     //Restore quiz_attempts

    118. 

  118.                     $status = quiz_attempts_restore_mods ($newid,$info,$restore);

    119. 

  119.                     if ($status) {

    120. 

  120.                         //Restore quiz_grades

    121. 

  121.                         $status = quiz_grades_restore_mods ($newid,$info,$restore);

    122. 

  122.                     }

    123. 

  123.                 }

    124. 

  124.             } else {

    125. 

  125.                 $status = false;

    126. 

  126.             }

    127. 

  127.         } else {

    128. 

  128.             $status = false;

    129. 

  129.         }

    130. 

  130. 

    131. 

  131.         return $status;

    132. 

  132.     }

    133. 

  133. 

    134. 

  134.     //This function restores the quiz_question_instances

    135. 

  135.     function quiz_question_instances_restore_mods($quiz_id,$info,$restore) {

    136. 

  136. 

    137. 

  137.         global $CFG;

    138. 

  138. 

    139. 

  139.         $status = true;

    140. 

  140. 

    141. 

  141.         //Get the quiz_question_instances array

    142. 

  142.         if (array_key_exists('QUESTION_INSTANCES', $info['MOD']['#'])) {

    143. 

  143.             $instances = $info['MOD']['#']['QUESTION_INSTANCES']['0']['#']['QUESTION_INSTANCE'];

    144. 

  144.         } else {

    145. 

  145.             $instances = array();

    146. 

  146.         }

    147. 

  147. 

    148. 

  148.         //Iterate over question_instances

    149. 

  149.         for($i = 0; $i < sizeof($instances); $i++) {

    150. 

  150.             $gra_info = $instances[$i];

    151. 

  151.             //traverse_xmlize($gra_info);                                                                 //Debug

    152. 

  152.             //print_object ($GLOBALS['traverse_array']);                                                  //Debug

    153. 

  153.             //$GLOBALS['traverse_array']="";                                                              //Debug

    154. 

  154. 

    155. 

  155.             //We'll need this later!!

    156. 

  156.             $oldid = backup_todb($gra_info['#']['ID']['0']['#']);

    157. 

  157. 

    158. 

  158.             //Now, build the QUESTION_INSTANCES record structure

    159. 

  159.             $instance = new stdClass;

    160. 

  160.             $instance->quiz = $quiz_id;

    161. 

  161.             $instance->question = backup_todb($gra_info['#']['QUESTION']['0']['#']);

    162. 

  162.             $instance->grade = backup_todb($gra_info['#']['GRADE']['0']['#']);

    163. 

  163. 

    164. 

  164.             //We have to recode the question field

    165. 

  165.             $question = backup_getid($restore->backup_unique_code,"question",$instance->question);

    166. 

  166.             if ($question) {

    167. 

  167.                 $instance->question = $question->new_id;

    168. 

  168.             }

    169. 

  169. 

    170. 

  170.             //The structure is equal to the db, so insert the quiz_question_instances

    171. 

  171.             $newid = insert_record ("quiz_question_instances",$instance);

    172. 

  172. 

    173. 

  173.             //Do some output

    174. 

  174.             if (($i+1) % 10 == 0) {

    175. 

  175.                 if (!defined('RESTORE_SILENTLY')) {

    176. 

  176.                     echo ".";

    177. 

  177.                     if (($i+1) % 200 == 0) {

    178. 

  178.                         echo "<br />";

    179. 

  179.                     }

    180. 

  180.                 }

    181. 

  181.                 backup_flush(300);

    182. 

  182.             }

    183. 

  183. 

    184. 

  184.             if ($newid) {

    185. 

  185.                 //We have the newid, update backup_ids

    186. 

  186.                 backup_putid($restore->backup_unique_code,"quiz_question_instances",$oldid,

    187. 

  187.                              $newid);

    188. 

  188.             } else {

    189. 

  189.                 $status = false;

    190. 

  190.             }

    191. 

  191.         }

    192. 

  192. 

    193. 

  193.         return $status;

    194. 

  194.     }

    195. 

  195. 

    196. 

  196.     //This function restores the quiz_question_instances

    197. 

  197.     function quiz_feedback_restore_mods($quiz_id, $info, $restore, $quiz) {

    198. 

  198.         $status = true;

    199. 

  199. 

    200. 

  200.         //Get the quiz_feedback array

    201. 

  201.         if (array_key_exists('FEEDBACKS', $info['MOD']['#'])) {

    202. 

  202.             $feedbacks = $info['MOD']['#']['FEEDBACKS']['0']['#']['FEEDBACK'];

    203. 

  203. 

    204. 

  204.             //Iterate over the feedbacks

    205. 

  205.             foreach ($feedbacks as $feedback_info) {

    206. 

  206.                 //traverse_xmlize($feedback_info);                                                            //Debug

    207. 

  207.                 //print_object ($GLOBALS['traverse_array']);                                                  //Debug

    208. 

  208.                 //$GLOBALS['traverse_array']="";                                                              //Debug

    209. 

  209.     

    210. 

  210.                 //We'll need this later!!

    211. 

  211.                 $oldid = backup_todb($feedback_info['#']['ID']['0']['#']);

    212. 

  212.     

    213. 

  213.                 //Now, build the quiz_feedback record structure

    214. 

  214.                 $feedback = new stdClass();

    215. 

  215.                 $feedback->quizid = $quiz_id;

    216. 

  216.                 $feedback->feedbacktext = backup_todb($feedback_info['#']['FEEDBACKTEXT']['0']['#']);

    217. 

  217.                 $feedback->mingrade = backup_todb($feedback_info['#']['MINGRADE']['0']['#']);

    218. 

  218.                 $feedback->maxgrade = backup_todb($feedback_info['#']['MAXGRADE']['0']['#']);

    219. 

  219.     

    220. 

  220.                 //The structure is equal to the db, so insert the quiz_question_instances

    221. 

  221.                 $newid = insert_record('quiz_feedback', $feedback);

    222. 

  222.     

    223. 

  223.                 if ($newid) {

    224. 

  224.                     //We have the newid, update backup_ids

    225. 

  225.                     backup_putid($restore->backup_unique_code, 'quiz_feedback', $oldid, $newid);

    226. 

  226.                 } else {

    227. 

  227.                     $status = false;

    228. 

  228.                 }

    229. 

  229.             }

    230. 

  230.         } else {

    231. 

  231.             $feedback = new stdClass();

    232. 

  232.             $feedback->quizid = $quiz_id;

    233. 

  233.             $feedback->feedbacktext = '';

    234. 

  234.             $feedback->mingrade = 0;

    235. 

  235.             $feedback->maxgrade = $quiz->grade + 1;

    236. 

  236.             insert_record('quiz_feedback', $feedback);

    237. 

  237.         }

    238. 

  238. 

    239. 

  239.         return $status;

    240. 

  240.     }

    241. 

  241. 

    242. 

  242.     //This function restores the quiz_question_versions

    243. 

  243.     function quiz_question_versions_restore_mods($quiz_id,$info,$restore) {

    244. 

  244. 

    245. 

  245.         global $CFG, $USER;

    246. 

  246. 

    247. 

  247.         $status = true;

    248. 

  248. 

    249. 

  249.         //Get the quiz_question_versions array

    250. 

  250.         if (!empty($info['MOD']['#']['QUESTION_VERSIONS'])) {

    251. 

  251.             $versions = $info['MOD']['#']['QUESTION_VERSIONS']['0']['#']['QUESTION_VERSION'];

    252. 

  252.         } else {

    253. 

  253.             $versions = array();

    254. 

  254.         }

    255. 

  255.         

    256. 

  256.         //Iterate over question_versions

    257. 

  257.         for($i = 0; $i < sizeof($versions); $i++) {

    258. 

  258.             $ver_info = $versions[$i];

    259. 

  259.             //traverse_xmlize($ver_info);                                                                 //Debug

    260. 

  260.             //print_object ($GLOBALS['traverse_array']);                                                  //Debug

    261. 

  261.             //$GLOBALS['traverse_array']="";                                                              //Debug

    262. 

  262. 

    263. 

  263.             //We'll need this later!!

    264. 

  264.             $oldid = backup_todb($ver_info['#']['ID']['0']['#']);

    265. 

  265. 

    266. 

  266.             //Now, build the QUESTION_VERSIONS record structure

    267. 

  267.             $version = new stdClass;

    268. 

  268.             $version->quiz = $quiz_id;

    269. 

  269.             $version->oldquestion = backup_todb($ver_info['#']['OLDQUESTION']['0']['#']);

    270. 

  270.             $version->newquestion = backup_todb($ver_info['#']['NEWQUESTION']['0']['#']);

    271. 

  271.             $version->originalquestion = backup_todb($ver_info['#']['ORIGINALQUESTION']['0']['#']);

    272. 

  272.             $version->userid = backup_todb($ver_info['#']['USERID']['0']['#']);

    273. 

  273.             $version->timestamp = backup_todb($ver_info['#']['TIMESTAMP']['0']['#']);

    274. 

  274. 

    275. 

  275.             //We have to recode the oldquestion field

    276. 

  276.             $question = backup_getid($restore->backup_unique_code,"question",$version->oldquestion);

    277. 

  277.             if ($question) {

    278. 

  278.                 $version->oldquestion = $question->new_id;

    279. 

  279.             }

    280. 

  280. 

    281. 

  281.             //We have to recode the newquestion field

    282. 

  282.             $question = backup_getid($restore->backup_unique_code,"question",$version->newquestion);

    283. 

  283.             if ($question) {

    284. 

  284.                 $version->newquestion = $question->new_id;

    285. 

  285.             }

    286. 

  286. 

    287. 

  287.             //We have to recode the originalquestion field

    288. 

  288.             $question = backup_getid($restore->backup_unique_code,"question",$version->originalquestion);

    289. 

  289.             if ($question) {

    290. 

  290.                 $version->newquestion = $question->new_id;

    291. 

  291.             }

    292. 

  292. 

    293. 

  293.             //We have to recode the userid field

    294. 

  294.             $user = backup_getid($restore->backup_unique_code,"user",$version->userid);

    295. 

  295.             if ($user) {

    296. 

  296.                 $version->userid = $user->new_id;

    297. 

  297.             } else {  //Assign to current user

    298. 

  298.                 $version->userid = $USER->id;

    299. 

  299.             }

    300. 

  300. 

    301. 

  301.             //The structure is equal to the db, so insert the quiz_question_versions

    302. 

  302.             $newid = insert_record ("quiz_question_versions",$version);

    303. 

  303. 

    304. 

  304.             //Do some output

    305. 

  305.             if (($i+1) % 10 == 0) {

    306. 

  306.                 if (!defined('RESTORE_SILENTLY')) {

    307. 

  307.                     echo ".";

    308. 

  308.                     if (($i+1) % 200 == 0) {

    309. 

  309.                         echo "<br />";

    310. 

  310.                     }

    311. 

  311.                 }

    312. 

  312.                 backup_flush(300);

    313. 

  313.             }

    314. 

  314. 

    315. 

  315.             if ($newid) {

    316. 

  316.                 //We have the newid, update backup_ids

    317. 

  317.                 backup_putid($restore->backup_unique_code,"quiz_question_versions",$oldid,

    318. 

  318.                              $newid);

    319. 

  319.             } else {

    320. 

  320.                 $status = false;

    321. 

  321.             }

    322. 

  322.         }

    323. 

  323. 

    324. 

  324.         return $status;

    325. 

  325.     }

    326. 

  326. 

    327. 

  327.     //This function restores the quiz_attempts

    328. 

  328.     function quiz_attempts_restore_mods($quiz_id,$info,$restore) {

    329. 

  329. 

    330. 

  330.         global $CFG;

    331. 

  331. 

    332. 

  332.         $status = true;

    333. 

  333. 

    334. 

  334.         //Get the quiz_attempts array

    335. 

  335.         if (array_key_exists('ATTEMPTS', $info['MOD']['#'])) {

    336. 

  336.             $attempts = $info['MOD']['#']['ATTEMPTS']['0']['#']['ATTEMPT'];

    337. 

  337.         } else {

    338. 

  338.             $attempts = array();

    339. 

  339.         }

    340. 

  340. 

    341. 

  341.         //Iterate over attempts

    342. 

  342.         for($i = 0; $i < sizeof($attempts); $i++) {

    343. 

  343.             $att_info = $attempts[$i];

    344. 

  344.             //traverse_xmlize($att_info);                                                                 //Debug

    345. 

  345.             //print_object ($GLOBALS['traverse_array']);                                                  //Debug

    346. 

  346.             //$GLOBALS['traverse_array']="";                                                              //Debug

    347. 

  347. 

    348. 

  348.             //We'll need this later!!

    349. 

  349.             $oldid = backup_todb($att_info['#']['ID']['0']['#']);

    350. 

  350.             $olduserid = backup_todb($att_info['#']['USERID']['0']['#']);

    351. 

  351. 

    352. 

  352.             //Now, build the ATTEMPTS record structure

    353. 

  353.             $attempt = new stdClass;

    354. 

  354.             $attempt->quiz = $quiz_id;

    355. 

  355.             $attempt->userid = backup_todb($att_info['#']['USERID']['0']['#']);

    356. 

  356.             $attempt->attempt = backup_todb($att_info['#']['ATTEMPTNUM']['0']['#']);

    357. 

  357.             $attempt->sumgrades = backup_todb($att_info['#']['SUMGRADES']['0']['#']);

    358. 

  358.             $attempt->timestart = backup_todb($att_info['#']['TIMESTART']['0']['#']);

    359. 

  359.             $attempt->timefinish = backup_todb($att_info['#']['TIMEFINISH']['0']['#']);

    360. 

  360.             $attempt->timemodified = backup_todb($att_info['#']['TIMEMODIFIED']['0']['#']);

    361. 

  361.             $attempt->layout = backup_todb($att_info['#']['LAYOUT']['0']['#']);

    362. 

  362.             $attempt->preview = backup_todb($att_info['#']['PREVIEW']['0']['#']);

    363. 

  363. 

    364. 

  364.             //We have to recode the userid field

    365. 

  365.             $user = backup_getid($restore->backup_unique_code,"user",$attempt->userid);

    366. 

  366.             if ($user) {

    367. 

  367.                 $attempt->userid = $user->new_id;

    368. 

  368.             }

    369. 

  369. 

    370. 

  370.             //Set the uniqueid field

    371. 

  371.             $attempt->uniqueid = question_new_attempt_uniqueid();

    372. 

  372. 

    373. 

  373.             //We have to recode the layout field (a list of questions id and pagebreaks)

    374. 

  374.             $attempt->layout = quiz_recode_layout($attempt->layout, $restore);

    375. 

  375. 

    376. 

  376.             //The structure is equal to the db, so insert the quiz_attempts

    377. 

  377.             $newid = insert_record ("quiz_attempts",$attempt);

    378. 

  378. 

    379. 

  379.             //Do some output

    380. 

  380.             if (($i+1) % 10 == 0) {

    381. 

  381.                 if (!defined('RESTORE_SILENTLY')) {

    382. 

  382.                     echo ".";

    383. 

  383.                     if (($i+1) % 200 == 0) {

    384. 

  384.                         echo "<br />";

    385. 

  385.                     }

    386. 

  386.                 }

    387. 

  387.                 backup_flush(300);

    388. 

  388.             }

    389. 

  389. 

    390. 

  390.             if ($newid) {

    391. 

  391.                 //We have the newid, update backup_ids

    392. 

  392.                 backup_putid($restore->backup_unique_code,"quiz_attempts",$oldid,

    393. 

  393.                              $newid);

    394. 

  394.                 //Now process question_states

    395. 

  395.                 // This function is defined in question/restorelib.php

    396. 

  396.                 $status = question_states_restore_mods($attempt->uniqueid,$att_info,$restore);

    397. 

  397.             } else {

    398. 

  398.                 $status = false;

    399. 

  399.             }

    400. 

  400.         }

    401. 

  401. 

    402. 

  402.         return $status;

    403. 

  403.     }

    404. 

  404. 

    405. 

  405.     //This function restores the quiz_grades

    406. 

  406.     function quiz_grades_restore_mods($quiz_id,$info,$restore) {

    407. 

  407. 

    408. 

  408.         global $CFG;

    409. 

  409. 

    410. 

  410.         $status = true;

    411. 

  411. 

    412. 

  412.         //Get the quiz_grades array

    413. 

  413.         if (array_key_exists('GRADES', $info['MOD']['#'])) {

    414. 

  414.             $grades = $info['MOD']['#']['GRADES']['0']['#']['GRADE'];

    415. 

  415.         } else {

    416. 

  416.             $grades = array();

    417. 

  417.         }

    418. 

  418. 

    419. 

  419.         //Iterate over grades

    420. 

  420.         for($i = 0; $i < sizeof($grades); $i++) {

    421. 

  421.             $gra_info = $grades[$i];

    422. 

  422.             //traverse_xmlize($gra_info);                                                                 //Debug

    423. 

  423.             //print_object ($GLOBALS['traverse_array']);                                                  //Debug

    424. 

  424.             //$GLOBALS['traverse_array']="";                                                              //Debug

    425. 

  425. 

    426. 

  426.             //We'll need this later!!

    427. 

  427.             $oldid = backup_todb($gra_info['#']['ID']['0']['#']);

    428. 

  428.             $olduserid = backup_todb($gra_info['#']['USERID']['0']['#']);

    429. 

  429. 

    430. 

  430.             //Now, build the GRADES record structure

    431. 

  431.             $grade = new stdClass;

    432. 

  432.             $grade->quiz = $quiz_id;

    433. 

  433.             $grade->userid = backup_todb($gra_info['#']['USERID']['0']['#']);

    434. 

  434.             $grade->grade = backup_todb($gra_info['#']['GRADEVAL']['0']['#']);

    435. 

  435.             $grade->timemodified = backup_todb($gra_info['#']['TIMEMODIFIED']['0']['#']);

    436. 

  436. 

    437. 

  437.             //We have to recode the userid field

    438. 

  438.             $user = backup_getid($restore->backup_unique_code,"user",$grade->userid);

    439. 

  439.             if ($user) {

    440. 

  440.                 $grade->userid = $user->new_id;

    441. 

  441.             }

    442. 

  442. 

    443. 

  443.             //The structure is equal to the db, so insert the quiz_grades

    444. 

  444.             $newid = insert_record ("quiz_grades",$grade);

    445. 

  445. 

    446. 

  446.             //Do some output

    447. 

  447.             if (($i+1) % 10 == 0) {

    448. 

  448.                 if (!defined('RESTORE_SILENTLY')) {

    449. 

  449.                     echo ".";

    450. 

  450.                     if (($i+1) % 200 == 0) {

    451. 

  451.                         echo "<br />";

    452. 

  452.                     }

    453. 

  453.                 }

    454. 

  454.                 backup_flush(300);

    455. 

  455.             }

    456. 

  456. 

    457. 

  457.             if ($newid) {

    458. 

  458.                 //We have the newid, update backup_ids

    459. 

  459.                 backup_putid($restore->backup_unique_code,"quiz_grades",$oldid,

    460. 

  460.                              $newid);

    461. 

  461.             } else {

    462. 

  462.                 $status = false;

    463. 

  463.             }

    464. 

  464.         }

    465. 

  465. 

    466. 

  466.         return $status;

    467. 

  467.     }

    468. 

  468. 

    469. 

  469.     //Return a content decoded to support interactivities linking. Every module

    470. 

  470.     //should have its own. They are called automatically from

    471. 

  471.     //quiz_decode_content_links_caller() function in each module

    472. 

  472.     //in the restore process

    473. 

  473.     function quiz_decode_content_links ($content,$restore) {

    474. 

  474.             

    475. 

  475.         global $CFG;

    476. 

  476.             

    477. 

  477.         $result = $content;

    478. 

  478.                 

    479. 

  479.         //Link to the list of quizs

    480. 

  480.                 

    481. 

  481.         $searchstring='/\$@(QUIZINDEX)\*([0-9]+)@\$/';

    482. 

  482.         //We look for it

    483. 

  483.         preg_match_all($searchstring,$content,$foundset);

    484. 

  484.         //If found, then we are going to look for its new id (in backup tables)

    485. 

  485.         if ($foundset[0]) {

    486. 

  486.             //print_object($foundset);                                     //Debug

    487. 

  487.             //Iterate over foundset[2]. They are the old_ids

    488. 

  488.             foreach($foundset[2] as $old_id) {

    489. 

  489.                 //We get the needed variables here (course id)

    490. 

  490.                 $rec = backup_getid($restore->backup_unique_code,"course",$old_id);

    491. 

  491.                 //Personalize the searchstring

    492. 

  492.                 $searchstring='/\$@(QUIZINDEX)\*('.$old_id.')@\$/';

    493. 

  493.                 //If it is a link to this course, update the link to its new location

    494. 

  494.                 if($rec->new_id) {

    495. 

  495.                     //Now replace it

    496. 

  496.                     $result= preg_replace($searchstring,$CFG->wwwroot.'/mod/quiz/index.php?id='.$rec->new_id,$result);

    497. 

  497.                 } else { 

    498. 

  498.                     //It's a foreign link so leave it as original

    499. 

  499.                     $result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/quiz/index.php?id='.$old_id,$result);

    500. 

  500.                 }

    501. 

  501.             }

    502. 

  502.         }

    503. 

  503. 

    504. 

  504.         //Link to quiz view by moduleid

    505. 

  505.         $searchstring='/\$@(QUIZVIEWBYID)\*([0-9]+)@\$/';

    506. 

  506.         //We look for it

    507. 

  507.         preg_match_all($searchstring,$result,$foundset);

    508. 

  508.         //If found, then we are going to look for its new id (in backup tables)

    509. 

  509.         if ($foundset[0]) {

    510. 

  510.             //print_object($foundset);                                     //Debug

    511. 

  511.             //Iterate over foundset[2]. They are the old_ids

    512. 

  512.             foreach($foundset[2] as $old_id) {

    513. 

  513.                 //We get the needed variables here (course_modules id)

    514. 

  514.                 $rec = backup_getid($restore->backup_unique_code,"course_modules",$old_id);

    515. 

  515.                 //Personalize the searchstring

    516. 

  516.                 $searchstring='/\$@(QUIZVIEWBYID)\*('.$old_id.')@\$/';

    517. 

  517.                 //If it is a link to this course, update the link to its new location

    518. 

  518.                 if($rec->new_id) {

    519. 

  519.                     //Now replace it

    520. 

  520.                     $result= preg_replace($searchstring,$CFG->wwwroot.'/mod/quiz/view.php?id='.$rec->new_id,$result);

    521. 

  521.                 } else {

    522. 

  522.                     //It's a foreign link so leave it as original

    523. 

  523.                     $result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/quiz/view.php?id='.$old_id,$result);

    524. 

  524.                 }

    525. 

  525.             }

    526. 

  526.         }

    527. 

  527. 

    528. 

  528.         //Link to quiz view by quizid

    529. 

  529.         $searchstring='/\$@(QUIZVIEWBYQ)\*([0-9]+)@\$/';

    530. 

  530.         //We look for it

    531. 

  531.         preg_match_all($searchstring,$result,$foundset);

    532. 

  532.         //If found, then we are going to look for its new id (in backup tables)

    533. 

  533.         if ($foundset[0]) {

    534. 

  534.             //print_object($foundset);                                     //Debug

    535. 

  535.             //Iterate over foundset[2]. They are the old_ids

    536. 

  536.             foreach($foundset[2] as $old_id) {

    537. 

  537.                 //We get the needed variables here (course_modules id)

    538. 

  538.                 $rec = backup_getid($restore->backup_unique_code,'quiz',$old_id);

    539. 

  539.                 //Personalize the searchstring

    540. 

  540.                 $searchstring='/\$@(QUIZVIEWBYQ)\*('.$old_id.')@\$/';

    541. 

  541.                 //If it is a link to this course, update the link to its new location

    542. 

  542.                 if($rec->new_id) {

    543. 

  543.                     //Now replace it

    544. 

  544.                     $result= preg_replace($searchstring,$CFG->wwwroot.'/mod/quiz/view.php?q='.$rec->new_id,$result);

    545. 

  545.                 } else {

    546. 

  546.                     //It's a foreign link so leave it as original

    547. 

  547.                     $result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/quiz/view.php?q='.$old_id,$result);

    548. 

  548.                 }

    549. 

  549.             }

    550. 

  550.         }

    551. 

  551. 

    552. 

  552.         return $result;

    553. 

  553.     }

    554. 

  554. 

    555. 

  555.     //This function makes all the necessary calls to xxxx_decode_content_links()

    556. 

  556.     //function in each module, passing them the desired contents to be decoded

    557. 

  557.     //from backup format to destination site/course in order to mantain inter-activities

    558. 

  558.     //working in the backup/restore process. It's called from restore_decode_content_links()

    559. 

  559.     //function in restore process

    560. 

  560.     function quiz_decode_content_links_caller($restore) {

    561. 

  561.         global $CFG;

    562. 

  562.         $status = true;

    563. 

  563.         

    564. 

  564.         if ($quizs = get_records_sql ("SELECT q.id, q.intro

    565. 

  565.                                    FROM {$CFG->prefix}quiz q

    566. 

  566.                                    WHERE q.course = $restore->course_id")) {

    567. 

  567.                                                //Iterate over each quiz->intro

    568. 

  568.             $i = 0;   //Counter to send some output to the browser to avoid timeouts

    569. 

  569.             foreach ($quizs as $quiz) {

    570. 

  570.                 //Increment counter

    571. 

  571.                 $i++;

    572. 

  572.                 $content = $quiz->intro;

    573. 

  573.                 $result = restore_decode_content_links_worker($content,$restore);

    574. 

  574.                 if ($result != $content) {

    575. 

  575.                     //Update record

    576. 

  576.                     $quiz->intro = addslashes($result);

    577. 

  577.                     $status = update_record("quiz",$quiz);

    578. 

  578.                     if (debugging()) {

    579. 

  579.                         if (!defined('RESTORE_SILENTLY')) {

    580. 

  580.                             echo '<br /><hr />'.s($content).'<br />changed to<br />'.s($result).'<hr /><br />';

    581. 

  581.                         }

    582. 

  582.                     }

    583. 

  583.                 }

    584. 

  584.                 //Do some output

    585. 

  585.                 if (($i+1) % 5 == 0) {

    586. 

  586.                     if (!defined('RESTORE_SILENTLY')) {

    587. 

  587.                         echo ".";

    588. 

  588.                         if (($i+1) % 100 == 0) {

    589. 

  589.                             echo "<br />";

    590. 

  590.                         }

    591. 

  591.                     }

    592. 

  592.                     backup_flush(300);

    593. 

  593.                 }

    594. 

  594.             }

    595. 

  595.         }

    596. 

  596. 

    597. 

  597.         return $status;

    598. 

  598.     }

    599. 

  599. 

    600. 

  600.     //This function converts texts in FORMAT_WIKI to FORMAT_MARKDOWN for

    601. 

  601.     //some texts in the module

    602. 

  602.     function quiz_restore_wiki2markdown ($restore) {

    603. 

  603. 

    604. 

  604.         global $CFG;

    605. 

  605. 

    606. 

  606.         $status = true;

    607. 

  607. 

    608. 

  608.         //Convert question->questiontext

    609. 

  609.         if ($records = get_records_sql ("SELECT q.id, q.questiontext, q.questiontextformat

    610. 

  610.                                          FROM {$CFG->prefix}question q,

    611. 

  611.                                               {$CFG->prefix}backup_ids b

    612. 

  612.                                          WHERE b.backup_code = $restore->backup_unique_code AND

    613. 

  613.                                                b.table_name = 'question' AND

    614. 

  614.                                                q.id = b.new_id AND

    615. 

  615.                                                q.questiontextformat = ".FORMAT_WIKI)) {

    616. 

  616.             $i = 0;

    617. 

  617.             foreach ($records as $record) {

    618. 

  618.                 //Rebuild wiki links

    619. 

  619.                 $record->questiontext = restore_decode_wiki_content($record->questiontext, $restore);

    620. 

  620.                 //Convert to Markdown

    621. 

  621.                 $wtm = new WikiToMarkdown();

    622. 

  622.                 $record->questiontext = $wtm->convert($record->questiontext, $restore->course_id);

    623. 

  623.                 $record->questiontextformat = FORMAT_MARKDOWN;

    624. 

  624.                 $status = update_record('question', addslashes_object($record));

    625. 

  625.                 //Do some output

    626. 

  626.                 $i++;

    627. 

  627.                 if (($i+1) % 1 == 0) {

    628. 

  628.                     if (!defined('RESTORE_SILENTLY')) {

    629. 

  629.                         echo ".";

    630. 

  630.                         if (($i+1) % 20 == 0) {

    631. 

  631.                             echo "<br />";

    632. 

  632.                         }

    633. 

  633.                     }

    634. 

  634.                     backup_flush(300);

    635. 

  635.                 }

    636. 

  636.             }

    637. 

  637.         }

    638. 

  638.         return $status;

    639. 

  639.     }

    640. 

  640. 

    641. 

  641.     //This function returns a log record with all the necessay transformations

    642. 

  642.     //done. It's used by restore_log_module() to restore modules log.

    643. 

  643.     function quiz_restore_logs($restore,$log) {

    644. 

  644. 

    645. 

  645.         $status = false;

    646. 

  646. 

    647. 

  647.         //Depending of the action, we recode different things

    648. 

  648.         switch ($log->action) {

    649. 

  649.         case "add":

    650. 

  650.             if ($log->cmid) {

    651. 

  651.                 //Get the new_id of the module (to recode the info field)

    652. 

  652.                 $mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);

    653. 

  653.                 if ($mod) {

    654. 

  654.                     $log->url = "view.php?id=".$log->cmid;

    655. 

  655.                     $log->info = $mod->new_id;

    656. 

  656.                     $status = true;

    657. 

  657.                 }

    658. 

  658.             }

    659. 

  659.             break;

    660. 

  660.         case "update":

    661. 

  661.             if ($log->cmid) {

    662. 

  662.                 //Get the new_id of the module (to recode the info field)

    663. 

  663.                 $mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);

    664. 

  664.                 if ($mod) {

    665. 

  665.                     $log->url = "view.php?id=".$log->cmid;

    666. 

  666.                     $log->info = $mod->new_id;

    667. 

  667.                     $status = true;

    668. 

  668.                 }

    669. 

  669.             }

    670. 

  670.             break;

    671. 

  671.         case "view":

    672. 

  672.             if ($log->cmid) {

    673. 

  673.                 //Get the new_id of the module (to recode the info field)

    674. 

  674.                 $mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);

    675. 

  675.                 if ($mod) {

    676. 

  676.                     $log->url = "view.php?id=".$log->cmid;

    677. 

  677.                     $log->info = $mod->new_id;

    678. 

  678.                     $status = true;

    679. 

  679.                 }

    680. 

  680.             }

    681. 

  681.             break;

    682. 

  682.         case "view all":

    683. 

  683.             $log->url = "index.php?id=".$log->course;

    684. 

  684.             $status = true;

    685. 

  685.             break;

    686. 

  686.         case "report":

    687. 

  687.             if ($log->cmid) {

    688. 

  688.                 //Get the new_id of the module (to recode the info field)

    689. 

  689.                 $mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);

    690. 

  690.                 if ($mod) {

    691. 

  691.                     $log->url = "report.php?id=".$log->cmid;

    692. 

  692.                     $log->info = $mod->new_id;

    693. 

  693.                     $status = true;

    694. 

  694.                 }

    695. 

  695.             }

    696. 

  696.             break;

    697. 

  697.         case "attempt":

    698. 

  698.             if ($log->cmid) {

    699. 

  699.                 //Get the new_id of the module (to recode the info field)

    700. 

  700.                 $mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);

    701. 

  701.                 if ($mod) {

    702. 

  702.                     //Extract the attempt id from the url field

    703. 

  703.                     $attid = substr(strrchr($log->url,"="),1);

    704. 

  704.                     //Get the new_id of the attempt (to recode the url field)

    705. 

  705.                     $att = backup_getid($restore->backup_unique_code,"quiz_attempts",$attid);

    706. 

  706.                     if ($att) {

    707. 

  707.                         $log->url = "review.php?id=".$log->cmid."&attempt=".$att->new_id;

    708. 

  708.                         $log->info = $mod->new_id;

    709. 

  709.                         $status = true;

    710. 

  710.                     }

    711. 

  711.                 }

    712. 

  712.             }

    713. 

  713.             break;

    714. 

  714.         case "submit":

    715. 

  715.             if ($log->cmid) {

    716. 

  716.                 //Get the new_id of the module (to recode the info field)

    717. 

  717.                 $mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);

    718. 

  718.                 if ($mod) {

    719. 

  719.                     //Extract the attempt id from the url field

    720. 

  720.                     $attid = substr(strrchr($log->url,"="),1);

    721. 

  721.                     //Get the new_id of the attempt (to recode the url field)

    722. 

  722.                     $att = backup_getid($restore->backup_unique_code,"quiz_attempts",$attid);

    723. 

  723.                     if ($att) {

    724. 

  724.                         $log->url = "review.php?id=".$log->cmid."&attempt=".$att->new_id;

    725. 

  725.                         $log->info = $mod->new_id;

    726. 

  726.                         $status = true;

    727. 

  727.                     }

    728. 

  728.                 }

    729. 

  729.             }

    730. 

  730.             break;

    731. 

  731.         case "review":

    732. 

  732.             if ($log->cmid) {

    733. 

  733.                 //Get the new_id of the module (to recode the info field)

    734. 

  734.                 $mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);

    735. 

  735.                 if ($mod) {

    736. 

  736.                     //Extract the attempt id from the url field

    737. 

  737.                     $attid = substr(strrchr($log->url,"="),1);

    738. 

  738.                     //Get the new_id of the attempt (to recode the url field)

    739. 

  739.                     $att = backup_getid($restore->backup_unique_code,"quiz_attempts",$attid);

    740. 

  740.                     if ($att) {

    741. 

  741.                         $log->url = "review.php?id=".$log->cmid."&attempt=".$att->new_id;

    742. 

  742.                         $log->info = $mod->new_id;

    743. 

  743.                         $status = true;

    744. 

  744.                     }

    745. 

  745.                 }

    746. 

  746.             }

    747. 

  747.             break;

    748. 

  748.         case "editquestions":

    749. 

  749.             if ($log->cmid) {

    750. 

  750.                 //Get the new_id of the module (to recode the url field)

    751. 

  751.                 $mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);

    752. 

  752.                 if ($mod) {

    753. 

  753.                     $log->url = "view.php?id=".$log->cmid;

    754. 

  754.                     $log->info = $mod->new_id;

    755. 

  755.                     $status = true;

    756. 

  756.                 }

    757. 

  757.             }

    758. 

  758.             break;

    759. 

  759.         case "preview":

    760. 

  760.             if ($log->cmid) {

    761. 

  761.                 //Get the new_id of the module (to recode the url field)

    762. 

  762.                 $mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);

    763. 

  763.                 if ($mod) {

    764. 

  764.                     $log->url = "attempt.php?id=".$log->cmid;

    765. 

  765.                     $log->info = $mod->new_id;

    766. 

  766.                     $status = true;

    767. 

  767.                 }

    768. 

  768.             }

    769. 

  769.             break;

    770. 

  770.         case "start attempt":

    771. 

  771.             if ($log->cmid) {

    772. 

  772.                 //Get the new_id of the module (to recode the info field)

    773. 

  773.                 $mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);

    774. 

  774.                 if ($mod) {

    775. 

  775.                     //Extract the attempt id from the url field

    776. 

  776.                     $attid = substr(strrchr($log->url,"="),1);

    777. 

  777.                     //Get the new_id of the attempt (to recode the url field)

    778. 

  778.                     $att = backup_getid($restore->backup_unique_code,"quiz_attempts",$attid);

    779. 

  779.                     if ($att) {

    780. 

  780.                         $log->url = "review.php?id=".$log->cmid."&attempt=".$att->new_id;

    781. 

  781.                         $log->info = $mod->new_id;

    782. 

  782.                         $status = true;

    783. 

  783.                     }

    784. 

  784.                 }

    785. 

  785.             }

    786. 

  786.             break;

    787. 

  787.         case "close attempt":

    788. 

  788.             if ($log->cmid) {

    789. 

  789.                 //Get the new_id of the module (to recode the info field)

    790. 

  790.                 $mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);

    791. 

  791.                 if ($mod) {

    792. 

  792.                     //Extract the attempt id from the url field

    793. 

  793.                     $attid = substr(strrchr($log->url,"="),1);

    794. 

  794.                     //Get the new_id of the attempt (to recode the url field)

    795. 

  795.                     $att = backup_getid($restore->backup_unique_code,"quiz_attempts",$attid);

    796. 

  796.                     if ($att) {

    797. 

  797.                         $log->url = "review.php?id=".$log->cmid."&attempt=".$att->new_id;

    798. 

  798.                         $log->info = $mod->new_id;

    799. 

  799.                         $status = true;

    800. 

  800.                     }

    801. 

  801.                 }

    802. 

  802.             }

    803. 

  803.             break;

    804. 

  804.         case "continue attempt":

    805. 

  805.             if ($log->cmid) {

    806. 

  806.                 //Get the new_id of the module (to recode the info field)

    807. 

  807.                 $mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);

    808. 

  808.                 if ($mod) {

    809. 

  809.                     //Extract the attempt id from the url field

    810. 

  810.                     $attid = substr(strrchr($log->url,"="),1);

    811. 

  811.                     //Get the new_id of the attempt (to recode the url field)

    812. 

  812.                     $att = backup_getid($restore->backup_unique_code,"quiz_attempts",$attid);

    813. 

  813.                     if ($att) {

    814. 

  814.                         $log->url = "review.php?id=".$log->cmid."&attempt=".$att->new_id;

    815. 

  815.                         $log->info = $mod->new_id;

    816. 

  816.                         $status = true;

    817. 

  817.                     }

    818. 

  818.                 }

    819. 

  819.             }

    820. 

  820.             break;

    821. 

  821.         case "continue attemp":

    822. 

  822.             if ($log->cmid) {

    823. 

  823.                 //Get the new_id of the module (to recode the info field)

    824. 

  824.                 $mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);

    825. 

  825.                 if ($mod) {

    826. 

  826.                     //Extract the attempt id from the url field

    827. 

  827.                     $attid = substr(strrchr($log->url,"="),1);

    828. 

  828.                     //Get the new_id of the attempt (to recode the url field)

    829. 

  829.                     $att = backup_getid($restore->backup_unique_code,"quiz_attempts",$attid);

    830. 

  830.                     if ($att) {

    831. 

  831.                         $log->url = "review.php?id=".$log->cmid."&attempt=".$att->new_id;

    832. 

  832.                         $log->info = $mod->new_id;

    833. 

  833.                         $log->action = "continue attempt";  //To recover some bad actions

    834. 

  834.                         $status = true;

    835. 

  835.                     }

    836. 

  836.                 }

    837. 

  837.             }

    838. 

  838.             break;

    839. 

  839.         default:

    840. 

  840.             if (!defined('RESTORE_SILENTLY')) {

    841. 

  841.                 echo "action (".$log->module."-".$log->action.") unknown. Not restored<br />";                 //Debug

    842. 

  842.             }

    843. 

  843.             break;

    844. 

  844.         }

    845. 

  845. 

    846. 

  846.         if ($status) {

    847. 

  847.             $status = $log;

    848. 

  848.         }

    849. 

  849.         return $status;

    850. 

  850.     }

    851. 

  851. 

    852. 

  852.     function quiz_recode_layout($layout, $restore) {

    853. 

  853.         //Recodes the quiz layout (a list of questions id and pagebreaks)

    854. 

  854. 

    855. 

  855.         //Extracts question id from sequence

    856. 

  856.         if ($questionids = explode(',', $layout)) {

    857. 

  857.             foreach ($questionids as $id => $questionid) {

    858. 

  858.                 if ($questionid) { // If it is zero then this is a pagebreak, don't translate

    859. 

  859.                     $newq = backup_getid($restore->backup_unique_code,"question",$questionid);

    860. 

  860.                     $questionids[$id] = $newq->new_id;

    861. 

  861.                 }

    862. 

  862.             }

    863. 

  863.         }

    864. 

  864.         return implode(',', $questionids);

    865. 

  865.     }

    866. 

  866. 

    867. 

  867. ?>

    868. 

  868.