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Introduce RKPropertyMapping abstract superclass for RKAttributeMapping and RKRelationshipMapping.

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Add primitives for working with attribute, relationship, and property mapping objects.
This commit is contained in:
Blake Watters
2012-08-28 13:40:32 -04:00
parent 15acf30a66
commit d926e240f8
13 changed files with 211 additions and 110 deletions
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57
Code/ObjectMapping/RKAttributeMapping.m
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@@ -22,57 +22,24 @@
extern NSString * const RKObjectMappingNestingAttributeKeyName;
@interface RKAttributeMapping ()
@property (nonatomic, strong, readwrite) NSString *sourceKeyPath;
@property (nonatomic, strong, readwrite) NSString *destinationKeyPath;
@end
@implementation RKAttributeMapping
@synthesize sourceKeyPath = _sourceKeyPath;
@synthesize destinationKeyPath = _destinationKeyPath;
/**
@private
*/
- (id)initWithSourceKeyPath:(NSString *)sourceKeyPath andDestinationKeyPath:(NSString *)destinationKeyPath
+ (RKAttributeMapping *)attributeMappingFromKeyPath:(NSString *)sourceKeyPath toKeyPath:(NSString *)destinationKeyPath
{
NSAssert(sourceKeyPath != nil, @"Cannot define an element mapping an element name to map from");
NSAssert(destinationKeyPath != nil, @"Cannot define an element mapping without a property to apply the value to");
self = [super init];
if (self) {
_sourceKeyPath = [sourceKeyPath retain];
_destinationKeyPath = [destinationKeyPath retain];
}
return self;
}
- (id)copyWithZone:(NSZone *)zone
{
RKAttributeMapping *copy = [[[self class] allocWithZone:zone] initWithSourceKeyPath:self.sourceKeyPath andDestinationKeyPath:self.destinationKeyPath];
return copy;
}
- (BOOL)isEqualToMapping:(RKAttributeMapping *)mapping
{
return [mapping isKindOfClass:[RKAttributeMapping class]] &&
[_sourceKeyPath isEqual:mapping.sourceKeyPath] &&
[_destinationKeyPath isEqual:mapping.destinationKeyPath];
}
- (void)dealloc
{
[_sourceKeyPath release];
[_destinationKeyPath release];
[super dealloc];
}
- (NSString *)description
{
return [NSString stringWithFormat:@"<%@: %p %@ => %@>", self.class, self, self.sourceKeyPath, self.destinationKeyPath];
}
+ (RKAttributeMapping *)mappingFromKeyPath:(NSString *)sourceKeyPath toKeyPath:(NSString *)destinationKeyPath
{
RKAttributeMapping *mapping = [[self alloc] initWithSourceKeyPath:sourceKeyPath andDestinationKeyPath:destinationKeyPath];
return [mapping autorelease];
NSParameterAssert(sourceKeyPath);
NSParameterAssert(destinationKeyPath);
RKAttributeMapping *attributeMapping = [self new];
attributeMapping.sourceKeyPath = sourceKeyPath;
attributeMapping.destinationKeyPath = destinationKeyPath;
return attributeMapping;
}
- (BOOL)isMappingForKeyOfNestedDictionary