// // MPStringLengthValueTransformer.m // MacPass // // Created by Michael Starke on 17.06.13. // Copyright (c) 2013 HicknHack Software GmbH. All rights reserved. // // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program. If not, see . // #import "MPStringLengthValueTransformer.h" #define CROP_LENGHT 10; NSString *const MPStringLengthValueTransformerName = @"com.hicknhack.macpass.MPMPStringLengthValueTransformer"; @implementation MPStringLengthValueTransformer + (Class)transformedValueClass { return [NSString class]; } + (BOOL)allowsReverseTransformation { return NO; } + (void)registerTransformer { MPStringLengthValueTransformer *transformer = [[MPStringLengthValueTransformer alloc] init]; [NSValueTransformer setValueTransformer:transformer forName:MPStringLengthValueTransformerName]; } - (id)transformedValue:(id)value { NSUInteger length = 0; if([value isKindOfClass:[NSString class]]) { length = [value length]; } return (length > 0) ? @"12345678" : @""; } @end