mirror of
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130 lines
5.1 KiB
PHP
130 lines
5.1 KiB
PHP
<?PHP //$Id$
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//This php script contains all the stuff to backup/restore
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//chat mods
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//This is the "graphical" structure of the chat mod:
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//
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// chat
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// (CL,pk->id)
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// |
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// |
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// |
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// chat_messages
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// (UL,pk->id, fk->chatid)
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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 chat_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 CHAT record structure
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$chat->course = $restore->course_id;
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$chat->name = backup_todb($info['MOD']['#']['NAME']['0']['#']);
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$chat->intro = backup_todb($info['MOD']['#']['INTRO']['0']['#']);
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$chat->keepdays = backup_todb($info['MOD']['#']['KEEPDAYS']['0']['#']);
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$chat->studentlogs = backup_todb($info['MOD']['#']['STUDENTLOGS']['0']['#']);
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$chat->schedule = backup_todb($info['MOD']['#']['SCHEDULE']['0']['#']);
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$chat->chattime = backup_todb($info['MOD']['#']['CHATTIME']['0']['#']);
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$chat->timemodified = backup_todb($info['MOD']['#']['TIMEMODIFIED']['0']['#']);
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//The structure is equal to the db, so insert the chat
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$newid = insert_record ("chat",$chat);
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//Do some output
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echo "<ul><li>".get_string("modulename","chat")." \"".$chat->name."\"<br>";
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backup_flush(300);
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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, $newid);
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//Now check if want to restore user data and do it.
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if ($restore->mods['chat']->userinfo) {
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//Restore chat_messages
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$status = chat_messages_restore_mods ($mod->id, $newid,$info,$restore);
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}
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} else {
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$status = false;
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}
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//Finalize ul
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echo "</ul>";
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} else {
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$status = false;
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}
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return $status;
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}
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//This function restores the chat_messages
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function chat_messages_restore_mods($old_chat_id, $new_chat_id,$info,$restore) {
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global $CFG;
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$status = true;
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//Get the messages array
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$messages = $info['MOD']['#']['MESSAGES']['0']['#']['MESSAGE'];
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//Iterate over messages
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for($i = 0; $i < sizeof($messages); $i++) {
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$mes_info = $messages[$i];
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//traverse_xmlize($mes_info); //Debug
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//print_object ($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($mes_info['#']['ID']['0']['#']);
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$olduserid = backup_todb($mes_info['#']['USERID']['0']['#']);
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//Now, build the CHAT_MESSAGES record structure
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$message->chatid = $new_chat_id;
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$message->userid = backup_todb($mes_info['#']['USERID']['0']['#']);
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$message->system = backup_todb($mes_info['#']['SYSTEM']['0']['#']);
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$message->message = backup_todb($mes_info['#']['MESSAGE_TEXT']['0']['#']);
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$message->timestamp = backup_todb($mes_info['#']['TIMESTAMP']['0']['#']);
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//We have to recode the userid field
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$user = backup_getid($restore->backup_unique_code,"user",$message->userid);
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if ($user) {
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$message->userid = $user->new_id;
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}
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//The structure is equal to the db, so insert the chat_message
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$newid = insert_record ("chat_messages",$message);
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//Do some output
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if (($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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}
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return $status;
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}
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?>
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