- (NSString *)getRandomMappingId {
NSString *min = @"000000000"; //Get the current text from your minimum and maximum textfields.
NSString *max = @"999999999";
srand([[NSDate date] timeIntervalSince1970]);
int randNum = rand() % ([max intValue] - [min intValue]) + [min intValue]; //create the random number.
return [NSString stringWithFormat:@"%d", randNum]; //Make the number into a string.
}