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Add assertion that gives the developer a hint of how to fix an attempt to add an array of attribute mappings that already exist in another mapping

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This commit is contained in:
Blake Watters
2012-10-20 17:43:34 -04:00
parent 3ca889fd28
commit ef46ff2d1d
2 changed files with 66 additions and 2 deletions
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8
Code/ObjectMapping/RKObjectMapping.m
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@@ -157,6 +157,7 @@ NSDate *RKDateFromStringWithFormatters(NSString *dateString, NSArray *formatters
- (void)addPropertyMappingsFromArray:(NSArray *)arrayOfPropertyMappings
{
NSAssert([[arrayOfPropertyMappings valueForKeyPath:@"@distinctUnionOfObjects.objectMapping"] count] == 0, @"One or more of the property mappings in the given array has already been added to another `RKObjectMapping` object. You probably want to obtain a copy of the array of mappings: `[[NSArray alloc] initWithArray:arrayOfPropertyMappings copyItems:YES]`");
for (RKPropertyMapping *propertyMapping in arrayOfPropertyMappings) {
[self addPropertyMapping:propertyMapping];
}
@@ -204,16 +205,19 @@ NSDate *RKDateFromStringWithFormatters(NSString *dateString, NSArray *formatters
- (void)addAttributeMappingsFromArray:(NSArray *)arrayOfAttributeNamesOrMappings
{
NSMutableArray *arrayOfAttributeMappings = [NSMutableArray arrayWithCapacity:[arrayOfAttributeNamesOrMappings count]];
for (id entry in arrayOfAttributeNamesOrMappings) {
if ([entry isKindOfClass:[NSString class]]) {
[self addPropertyMapping:[RKAttributeMapping attributeMappingFromKeyPath:entry toKeyPath:entry]];
[arrayOfAttributeMappings addObject:[RKAttributeMapping attributeMappingFromKeyPath:entry toKeyPath:entry]];
} else if ([entry isKindOfClass:[RKAttributeMapping class]]) {
[self addPropertyMapping:entry];
[arrayOfAttributeMappings addObject:entry];
} else {
[NSException raise:NSInvalidArgumentException
format:@"*** - [%@ %@]: Unable to attribute mapping from unsupported entry of type '%@' (%@).", NSStringFromClass([self class]), NSStringFromSelector(_cmd), NSStringFromClass([entry class]), entry];
}
}
[self addPropertyMappingsFromArray:arrayOfAttributeMappings];
}
- (void)removePropertyMapping:(RKPropertyMapping *)attributeOrRelationshipMapping