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Merge branch 'feature/1105-connection-matchers' of github.com:cfis/RestKit into cfis-feature/1105-connection-matchers

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Blake Watters
2012-12-24 17:58:24 -05:00
parent b3899ac191 a67bb48ece
commit 78e55c90a2
3 changed files with 57 additions and 0 deletions
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6
Code/CoreData/RKConnectionDescription.h
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@@ -19,6 +19,7 @@
//
#import <CoreData/CoreData.h>
#import "RKDynamicMappingMatcher.h"
/**
The `RKConnectionDescription` class describes a means for connecting a Core Data relationship. Connections can be established either by foreign key, in which case one or more attribute values on the source entity correspond to matching values on the destination entity, or by key path, in which case a key path is evaluated on the object graph to obtain a value for the relationship. Connection objects are used by instances of `RKRelationshipConnectionOperation` to connect a relationship of a given managed object.
@@ -156,4 +157,9 @@
*/
@property (nonatomic, copy) NSPredicate *predicate;
/**
An optional matcher that filters the source object to be connected.
*/
@property (nonatomic, strong) RKDynamicMappingMatcher* matcher;
@end

4
Code/CoreData/RKRelationshipConnectionOperation.m
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@@ -139,6 +139,10 @@ static NSDictionary *RKConnectionAttributeValuesWithObject(RKConnectionDescripti
- (id)findConnected
{
id connectionResult = nil;
if (self.connection.matcher && ![self.connection.matcher matches:self.managedObject])
return nil;
if ([self.connection isForeignKeyConnection]) {
NSDictionary *attributeValues = RKConnectionAttributeValuesWithObject(self.connection, self.managedObject);
NSSet *managedObjects = [self.managedObjectCache managedObjectsWithEntity:[self.connection.relationship destinationEntity]

47
Tests/Logic/CoreData/RKRelationshipConnectionOperationTest.m
View File

@@ -256,4 +256,51 @@
expect(secondChild.friends).to.equal(expectedFriends);
}
- (void)testConnectionMatcher
{
RKHuman *human = [RKTestFactory insertManagedObjectForEntityForName:@"Human" inManagedObjectContext:nil withProperties:nil];
human.sex = @"female";
RKCat *asia = [RKTestFactory insertManagedObjectForEntityForName:@"Cat" inManagedObjectContext:nil withProperties:nil];
asia.sex = @"female";
RKCat *lola = [RKTestFactory insertManagedObjectForEntityForName:@"Cat" inManagedObjectContext:nil withProperties:nil];
lola.sex = @"female";
RKCat *roy = [RKTestFactory insertManagedObjectForEntityForName:@"Cat" inManagedObjectContext:nil withProperties:nil];
roy.sex = @"male";
RKEntityMapping *mapping = [RKEntityMapping mappingForEntityForName:@"Human" inManagedObjectStore:[RKTestFactory managedObjectStore]];
[mapping addConnectionForRelationship:@"cats" connectedBy:@"sex"];
RKFetchRequestManagedObjectCache *managedObjectCache = [RKFetchRequestManagedObjectCache new];
RKConnectionDescription *connection = [mapping connectionForRelationship:@"cats"];
RKEntityMapping *catMapping = [RKEntityMapping mappingForEntityForName:@"Cat" inManagedObjectStore:[RKTestFactory managedObjectStore]];
connection.matcher = [[RKDynamicMappingMatcher alloc] initWithKeyPath:@"sex" expectedValue:@"male" objectMapping:catMapping];
RKRelationshipConnectionOperation *operation = [[RKRelationshipConnectionOperation alloc] initWithManagedObject:human connection:connection managedObjectCache:managedObjectCache];
[operation start];
assertThat(human.cats, hasCountOf(0));
}
- (void)testConnectionPredicate
{
RKHuman *human = [RKTestFactory insertManagedObjectForEntityForName:@"Human" inManagedObjectContext:nil withProperties:nil];
human.sex = @"female";
RKCat *asia = [RKTestFactory insertManagedObjectForEntityForName:@"Cat" inManagedObjectContext:nil withProperties:@{@"birthYear": @2011}];
asia.sex = @"female";
RKCat *lola = [RKTestFactory insertManagedObjectForEntityForName:@"Cat" inManagedObjectContext:nil withProperties:@{@"birthYear": @2012}];
lola.sex = @"female";
RKEntityMapping *mapping = [RKEntityMapping mappingForEntityForName:@"Human" inManagedObjectStore:[RKTestFactory managedObjectStore]];
[mapping addConnectionForRelationship:@"cats" connectedBy:@"sex"];
RKFetchRequestManagedObjectCache *managedObjectCache = [RKFetchRequestManagedObjectCache new];
RKConnectionDescription *connection = [mapping connectionForRelationship:@"cats"];
connection.predicate = [NSPredicate predicateWithFormat:@"birthYear = 2011"];
RKRelationshipConnectionOperation *operation = [[RKRelationshipConnectionOperation alloc] initWithManagedObject:human connection:connection managedObjectCache:managedObjectCache];
[operation start];
assertThat(human.cats, hasCountOf(1));
assertThat(human.cats, hasItems(asia, nil));
}
@end