34 lines
1.0 KiB
Objective-C
34 lines
1.0 KiB
Objective-C
#import "OfflinePackNameValueTransformer.h"
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static NSString * const MBXOfflinePackContextNameKey = @"Name";
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@implementation OfflinePackNameValueTransformer
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+ (Class)transformedValueClass {
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return [NSString class];
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}
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+ (BOOL)allowsReverseTransformation {
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return YES;
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}
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- (NSString *)transformedValue:(NSData *)context {
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NSAssert([context isKindOfClass:[NSData class]], @"Context should be NSData.");
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NSDictionary *userInfo = [NSKeyedUnarchiver unarchiveObjectWithData:context];
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NSAssert([userInfo isKindOfClass:[NSDictionary class]], @"Context of offline pack isn’t a dictionary.");
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NSString *name = userInfo[MBXOfflinePackContextNameKey];
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NSAssert([name isKindOfClass:[NSString class]], @"Name of offline pack isn’t a string.");
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return name;
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}
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- (NSData *)reverseTransformedValue:(NSString *)name {
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NSAssert([name isKindOfClass:[NSString class]], @"Name should be a string.");
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return [NSKeyedArchiver archivedDataWithRootObject:@{
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MBXOfflinePackContextNameKey: name,
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}];
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}
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@end
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