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Now chats are restored too !! :-)

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commit 9934c7b0d6a1dcab4ea365307da3983d1246feba 1 parent 724db57
stronk7 authored
Showing with 129 additions and 0 deletions.
  1. +129 −0 mod/chat/restorelib.php
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129 mod/chat/restorelib.php
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+<?PHP //$Id$
+ //This php script contains all the stuff to backup/restore
+ //chat mods
+
+ //This is the "graphical" structure of the chat mod:
+ //
+ // chat
+ // (CL,pk->id)
+ // |
+ // |
+ // |
+ // chat_messages
+ // (UL,pk->id, fk->chatid)
+ //
+ // Meaning: pk->primary key field of the table
+ // fk->foreign key to link with parent
+ // nt->nested field (recursive data)
+ // CL->course level info
+ // UL->user level info
+ // files->table may have files)
+ //
+ //-----------------------------------------------------------
+
+ //This function executes all the restore procedure about this mod
+ function chat_restore_mods($mod,$restore) {
+
+ global $CFG;
+
+ $status = true;
+
+ //Get record from backup_ids
+ $data = backup_getid($restore->backup_unique_code,$mod->modtype,$mod->id);
+
+ if ($data) {
+ //Now get completed xmlized object
+ $info = $data->info;
+ //traverse_xmlize($info); //Debug
+ //print_object ($GLOBALS['traverse_array']); //Debug
+ //$GLOBALS['traverse_array']=""; //Debug
+
+ //Now, build the CHAT record structure
+ $chat->course = $restore->course_id;
+ $chat->name = backup_todb($info['MOD']['#']['NAME']['0']['#']);
+ $chat->intro = backup_todb($info['MOD']['#']['INTRO']['0']['#']);
+ $chat->keepdays = backup_todb($info['MOD']['#']['KEEPDAYS']['0']['#']);
+ $chat->studentlogs = backup_todb($info['MOD']['#']['STUDENTLOGS']['0']['#']);
+ $chat->schedule = backup_todb($info['MOD']['#']['SCHEDULE']['0']['#']);
+ $chat->chattime = backup_todb($info['MOD']['#']['CHATTIME']['0']['#']);
+ $chat->timemodified = backup_todb($info['MOD']['#']['TIMEMODIFIED']['0']['#']);
+
+ //The structure is equal to the db, so insert the chat
+ $newid = insert_record ("chat",$chat);
+
+ //Do some output
+ echo "<ul><li>".get_string("modulename","chat")." \"".$chat->name."\"<br>";
+ backup_flush(300);
+
+ if ($newid) {
+ //We have the newid, update backup_ids
+ backup_putid($restore->backup_unique_code,$mod->modtype,
+ $mod->id, $newid);
+ //Now check if want to restore user data and do it.
+ if ($restore->mods[chat]->userinfo) {
+ //Restore chat_messages
+ $status = chat_messages_restore_mods ($mod->id, $newid,$info,$restore);
+ }
+ } else {
+ $status = false;
+ }
+
+ //Finalize ul
+ echo "</ul>";
+
+ } else {
+ $status = false;
+ }
+
+ return $status;
+ }
+
+ //This function restores the chat_messages
+ function chat_messages_restore_mods($old_chat_id, $new_chat_id,$info,$restore) {
+
+ global $CFG;
+
+ $status = true;
+
+ //Get the messages array
+ $messages = $info['MOD']['#']['MESSAGES']['0']['#']['MESSAGE'];
+
+ //Iterate over messages
+ for($i = 0; $i < sizeof($messages); $i++) {
+ $mes_info = $messages[$i];
+ //traverse_xmlize($mes_info); //Debug
+ //print_object ($GLOBALS['traverse_array']); //Debug
+ //$GLOBALS['traverse_array']=""; //Debug
+
+ //We'll need this later!!
+ $oldid = backup_todb($mes_info['#']['ID']['0']['#']);
+ $olduserid = backup_todb($mes_info['#']['USERID']['0']['#']);
+
+ //Now, build the CHAT_MESSAGES record structure
+ $message->chatid = $new_chat_id;
+ $message->userid = backup_todb($mes_info['#']['USERID']['0']['#']);
+ $message->system = backup_todb($mes_info['#']['SYSTEM']['0']['#']);
+ $message->message = backup_todb($mes_info['#']['MESSAGE_TEXT']['0']['#']);
+ $message->timestamp = backup_todb($mes_info['#']['TIMESTAMP']['0']['#']);
+
+ //We have to recode the userid field
+ $user = backup_getid($restore->backup_unique_code,"user",$message->userid);
+ if ($user) {
+ $message->userid = $user->new_id;
+ }
+
+ //The structure is equal to the db, so insert the chat_message
+ $newid = insert_record ("chat_messages",$message);
+
+ //Do some output
+ if (($i+1) % 50 == 0) {
+ echo ".";
+ if (($i+1) % 1000 == 0) {
+ echo "<br>";
+ }
+ backup_flush(300);
+ }
+ }
+ return $status;
+ }
+?>
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