mirror of
https://github.com/zhigang1992/RestKit.git
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f3c0995d5e
* Removed RestKit from inheritance hierarchy * Mappings are implemented as concrete classes * Mapper is much more flexible & powerful * Much more robust error handling * Serialization is reimplemented as an object mapping operation * Added ability to serialize to JSON natively * Reworked Core Data integration * Simplified the codebase substantially
77 lines
2.6 KiB
Objective-C
77 lines
2.6 KiB
Objective-C
//
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// RKManagedObjectMapping.m
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// RestKit
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//
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// Created by Blake Watters on 5/31/11.
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// Copyright 2011 Two Toasters. All rights reserved.
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//
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#import "RKManagedObjectMapping.h"
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#import "NSManagedObject+ActiveRecord.h"
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@implementation RKManagedObjectMapping
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@synthesize entity = _entity;
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@synthesize primaryKeyAttribute = _primaryKeyAttribute;
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+ (id)mappingForClass:(Class)objectClass {
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return [self mappingForEntityWithName:NSStringFromClass(objectClass)];
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}
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+ (RKManagedObjectMapping*)mappingForEntity:(NSEntityDescription*)entity {
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return [[[self alloc] initWithEntity:entity] autorelease];
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}
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+ (RKManagedObjectMapping*)mappingForEntityWithName:(NSString*)entityName {
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return [self mappingForEntity:[NSEntityDescription entityForName:entityName inManagedObjectContext:[NSManagedObject managedObjectContext]]];
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}
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- (id)initWithEntity:(NSEntityDescription*)entity {
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NSAssert(entity, @"Cannot initialize an RKManagedObjectMapping without an entity. Maybe you want RKObjectMapping instead?");
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self = [self init];
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if (self) {
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self.objectClass = NSClassFromString([entity managedObjectClassName]);
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_entity = [entity retain];
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}
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return self;
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}
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- (id)init {
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self = [super init];
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if (self) {
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_relationshipToPrimaryKeyMappings = [[NSMutableDictionary alloc] init];
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}
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return self;
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}
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- (void)dealloc {
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[_entity release];
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[_relationshipToPrimaryKeyMappings release];
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[super dealloc];
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}
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- (NSDictionary*)relationshipsAndPrimaryKeyAttributes {
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return _relationshipToPrimaryKeyMappings;
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}
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- (void)connectRelationship:(NSString*)relationshipName withObjectForPrimaryKeyAttribute:(NSString*)primaryKeyAttribute {
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NSAssert([_relationshipToPrimaryKeyMappings objectForKey:relationshipName] == nil, @"Cannot add connect relationship %@ by primary key, a mapping already exists.", relationshipName);
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[_relationshipToPrimaryKeyMappings setObject:primaryKeyAttribute forKey:relationshipName];
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}
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- (void)connectRelationshipsWithObjectsForPrimaryKeyAttributes:(NSString*)firstRelationshipName, ... {
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va_list args;
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va_start(args, firstRelationshipName);
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for (NSString* relationshipName = firstRelationshipName; relationshipName != nil; relationshipName = va_arg(args, NSString*)) {
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NSString* primaryKeyAttribute = va_arg(args, NSString*);
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NSAssert(primaryKeyAttribute != nil, @"Cannot connect a relationship without an attribute containing the primary key");
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[self connectRelationship:relationshipName withObjectForPrimaryKeyAttribute:primaryKeyAttribute];
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// TODO: Raise proper exception here, argument error...
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}
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va_end(args);
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}
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@end
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