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283 lines
13 KiB
PHP
283 lines
13 KiB
PHP
<?php //$Id$
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//This php script contains all the stuff to backup/restore
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//choice mods
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//This is the "graphical" structure of the choice mod:
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//
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// choice
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// (CL,pk->id)
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// |
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// |
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// |
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// choice_responses
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// (UL,pk->id, fk->choice)
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//
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// Meaning: pk->primary key field of the table
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// fk->foreign key to link with parent
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// nt->nested field (recursive data)
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// CL->course level info
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// UL->user level info
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// files->table may have files)
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//
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//-----------------------------------------------------------
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//This function executes all the restore procedure about this mod
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function choice_restore_mods($mod,$restore) {
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global $CFG;
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$status = true;
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//Get record from backup_ids
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$data = backup_getid($restore->backup_unique_code,$mod->modtype,$mod->id);
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if ($data) {
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//Now get completed xmlized object
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$info = $data->info;
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//traverse_xmlize($info); //Debug
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//print_object ($GLOBALS['traverse_array']); //Debug
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//$GLOBALS['traverse_array']=""; //Debug
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//Now, build the CHOICE record structure
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$choice->course = $restore->course_id;
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$choice->name = backup_todb($info['MOD']['#']['NAME']['0']['#']);
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$choice->text = backup_todb($info['MOD']['#']['TEXT']['0']['#']);
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$choice->format = backup_todb($info['MOD']['#']['FORMAT']['0']['#']);
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$choice->showunanswered = backup_todb($info['MOD']['#']['SHOWUNANSWERED']['0']['#']);
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$choice->timeopen = backup_todb($info['MOD']['#']['TIMEOPEN']['0']['#']);
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$choice->timeclose = backup_todb($info['MOD']['#']['TIMECLOSE']['0']['#']);
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$choice->publish = backup_todb($info['MOD']['#']['PUBLISH']['0']['#']);
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$choice->release = backup_todb($info['MOD']['#']['RELEASE']['0']['#']);
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$choice->display = backup_todb($info['MOD']['#']['DISPLAY']['0']['#']);
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$choice->allowupdate = backup_todb($info['MOD']['#']['ALLOWUPDATE']['0']['#']);
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$choice->timemodified = backup_todb($info['MOD']['#']['TIMEMODIFIED']['0']['#']);
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//To mantain compatibilty, in 1.4 the publish setting meaning has changed. We
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//have to modify some things it if the release field isn't present in the backup file.
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if (! isset($info['MOD']['#']['RELEASE']['0']['#'])) { //It's a pre-14 backup filea
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//Set the allowupdate field
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if ($choice->publish == 0) {
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$choice->allowupdate = 1;
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}
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//Set the release field as defined by the old publish field
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if ($choice->publish > 0) {
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$choice->release = 1;
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}
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//Recode the publish field to its 1.4 meaning
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if ($choice->publish > 0) {
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$choice->publish--;
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}
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}
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//The structure is equal to the db, so insert the choice
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$newid = insert_record ("choice",$choice);
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if ($newid) {
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//We have the newid, update backup_ids
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backup_putid($restore->backup_unique_code,$mod->modtype,
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$mod->id, $newid);
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//Now restore the answers for this choice
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//check to see how answers are stored in the table - if answer1 - answer6 exist, this is an old version of choice
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if (isset($info['MOD']['#']['ANSWER1']['0']['#']) || isset($info['MOD']['#']['ANSWER2']['0']['#']) || isset($info['MOD']['#']['ANSWER3']['0']['#']) || isset($info['MOD']['#']['ANSWER4']['0']['#']) || isset($info['MOD']['#']['ANSWER5']['0']['#']) || isset($info['MOD']['#']['ANSWER6']['0']['#']) ) {
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$answers[1] = backup_todb($info['MOD']['#']['ANSWER1']['0']['#']);
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$answers[2] = backup_todb($info['MOD']['#']['ANSWER2']['0']['#']);
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$answers[3] = backup_todb($info['MOD']['#']['ANSWER3']['0']['#']);
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$answers[4] = backup_todb($info['MOD']['#']['ANSWER4']['0']['#']);
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$answers[5] = backup_todb($info['MOD']['#']['ANSWER5']['0']['#']);
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$answers[6] = backup_todb($info['MOD']['#']['ANSWER6']['0']['#']);
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for($i = 1; $i < 7; $i++) { //insert new answers into db.
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if (!empty($answers[$i])) { //make sure this answer has something in it!
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$answer->choice = $newid;
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$answer->answer = $answers[$i];
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$answer->timemodified = $info['MOD']['#']['TIMEMODIFIED']['0']['#'];
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$ansid[$i] = insert_record ("choice_answers",$answer);
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$status = true;
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}
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}
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//now restore the responses for this choice.
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if ($restore->mods['choice']->userinfo) {
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//Restore choice_responses
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$status = choice_responses_restore_mods($newid,$info,$restore,$ansid,"1.4");
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}
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} else {
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//this is a normal backup file
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$answers = $info['MOD']['#']['ANSWERS']['0']['#']['ANSWER'];
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for($i = 0; $i < sizeof($answers); $i++) {
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$sub_info = $answers[$i];
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$answer->choice = $newid;
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$answer->answer = backup_todb($sub_info['#']['CHOICE_ANSWER']['0']['#']);
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$answer->timemodified = backup_todb($sub_info['#']['TIMEMODIFIED']['0']['#']);
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$ansid[$sub_info['#']['ID']['0']['#']] = insert_record ("choice_answers",$answer);
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$status = true;
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}
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//now restore the responses for this choice.
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if ($restore->mods['choice']->userinfo) {
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//Restore choice_responses
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$status = choice_responses_restore_mods($newid,$info,$restore,$ansid);
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}
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}
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} else {
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$status = false;
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}
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//Do some output
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echo "<li>".get_string("modulename","choice")." \"".format_string(stripslashes($choice->name),true)."\"</li>";
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backup_flush(300);
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} else {
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$status = false;
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}
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return $status;
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}
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//This function restores the choice_responses
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function choice_responses_restore_mods($choice_id,$info,$restore,$answerids,$version) {
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global $CFG;
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$status = true;
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//Get the responses array
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if ($version == "1.4") { //this version stores responses differently.
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$responses = $info['MOD']['#']['ANSWERS']['0']['#']['ANSWER'];
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} else {
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$responses = $info['MOD']['#']['RESPONSES']['0']['#']['RESPONSE'];
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}
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//Iterate over responses
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for($i = 0; $i < sizeof($responses); $i++) {
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$sub_info = $responses[$i];
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//traverse_xmlize($sub_info); //Debug
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//print_object ($GLOBALS['traverse_array']); //Debug
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//$GLOBALS['traverse_array']=""; //Debug
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//We'll need this later!!
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$oldid = backup_todb($sub_info['#']['ID']['0']['#']);
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$olduserid = backup_todb($sub_info['#']['USERID']['0']['#']);
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//Now, build the CHOICE_RESPONSES record structure
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$response->choice = $choice_id;
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$response->userid = backup_todb($sub_info['#']['USERID']['0']['#']);
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$response->timemodified = backup_todb($sub_info['#']['TIMEMODIFIED']['0']['#']);
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//we have to recode the answer field
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if ($version == "1.4") {
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//this is an old style choice.
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$response->answerid = $answerids[backup_todb($sub_info['#']['CHOICE_ANSWER']['0']['#'])];
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//
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} else {
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$response->answerid = $answerids[backup_todb($sub_info['#']['CHOICE_RESPONSE']['0']['#'])];
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}
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//We have to recode the userid field
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$user = backup_getid($restore->backup_unique_code,"user",$response->userid);
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if ($user) {
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$response->userid = $user->new_id;
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}
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//The structure is equal to the db, so insert the choice_responses
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$newid = insert_record ("choice_responses",$response);
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//Do some output
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if (($i+1) % 50 == 0) {
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echo ".";
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if (($i+1) % 1000 == 0) {
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echo "<br />";
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}
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backup_flush(300);
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}
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if ($newid) {
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//We have the newid, update backup_ids
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backup_putid($restore->backup_unique_code,"choice_responses",$oldid,
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$newid);
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} else {
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$status = false;
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}
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}
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return $status;
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}
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//This function returns a log record with all the necessay transformations
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//done. It's used by restore_log_module() to restore modules log.
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function choice_restore_logs($restore,$log) {
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$status = false;
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//Depending of the action, we recode different things
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switch ($log->action) {
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case "add":
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if ($log->cmid) {
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//Get the new_id of the module (to recode the info field)
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$mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);
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if ($mod) {
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$log->url = "view.php?id=".$log->cmid;
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$log->info = $mod->new_id;
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$status = true;
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}
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}
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break;
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case "update":
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if ($log->cmid) {
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//Get the new_id of the module (to recode the info field)
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$mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);
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if ($mod) {
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$log->url = "view.php?id=".$log->cmid;
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$log->info = $mod->new_id;
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$status = true;
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}
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}
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break;
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case "choose":
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if ($log->cmid) {
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//Get the new_id of the module (to recode the info field)
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$mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);
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if ($mod) {
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$log->url = "view.php?id=".$log->cmid;
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$log->info = $mod->new_id;
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$status = true;
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}
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}
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break;
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case "choose again":
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if ($log->cmid) {
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//Get the new_id of the module (to recode the info field)
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$mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);
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if ($mod) {
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$log->url = "view.php?id=".$log->cmid;
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$log->info = $mod->new_id;
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$status = true;
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}
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}
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break;
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case "view":
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if ($log->cmid) {
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//Get the new_id of the module (to recode the info field)
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$mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);
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if ($mod) {
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$log->url = "view.php?id=".$log->cmid;
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$log->info = $mod->new_id;
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$status = true;
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}
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}
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break;
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case "view all":
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$log->url = "index.php?id=".$log->course;
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$status = true;
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break;
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default:
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echo "action (".$log->module."-".$log->action.") unknow. Not restored<br />"; //Debug
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break;
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}
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if ($status) {
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$status = $log;
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}
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return $status;
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}
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?>
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