Create copy of database in iPhone - iphone

Question

Can any one help me for:
How can we create copy of database?
How can we open that database in iPhone?
How can we create folder in our application path?
How can we copy folder with files in our application path?

Answer 1

"For Creating the copy of Database..."
BOOL success;
NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentPath = [paths objectAtIndex:0];
NSString *finalPath = [documentPath stringByAppendingPathComponent:#"test.sqlite"];
success = [fileManager fileExistsAtPath:finalPath];
if(success)
{
NSLog(#"Database Already Created.");
return;
}
NSString *defaultPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"test.sqlite"];
success = [fileManager copyItemAtPath:defaultPath toPath:finalPath error:&error];
if(success)
{
NSLog(#"Database Created Successfully.");
}
"For Open that Database..."
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentPath = [paths objectAtIndex:0];
NSString *finalPath = [documentPath stringByAppendingPathComponent:#"test.sqlite"];
if(sqlite3_open([finalPath UTF8String], &database) != SQLITE_OK)
{
sqlite3_close(database);
NSLog(#"Error to Open Database :- %s",sqlite3_errmsg(database));
}
"For Creating Folder in Application Path"
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0]; // Get documents folder
NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:#"/FolderName"];
if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath])
{
[[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:&error];
}
"For Copying The Files And Folder in Application"
NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0]; // Get documents folder
NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:#"/FolderName"];
if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath])
{
BOOL successs;
NSString *defaultPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"Files/FolderName"];
successs = [[NSFileManager defaultManager] fileExistsAtPath:defaultPath];
if(successs)
{
NSLog(#"TRUE");
NSString *strFile = [NSString stringWithFormat:#"%#",dataPath];
NSLog(#"File :- '%#'",strFile);
[fileManager copyItemAtPath:defaultPath toPath:strFile error:&error];
}
else
NSLog(#"FALSE");
}