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90 lines
3.9 KiB
Objective-C
90 lines
3.9 KiB
Objective-C
//
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// RKPropertyInspector+CoreData.m
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// RestKit
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//
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// Created by Blake Watters on 8/14/11.
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// Copyright (c) 2009-2012 RestKit. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#import <CoreData/CoreData.h>
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#import "RKPropertyInspector+CoreData.h"
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#import "RKLog.h"
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#import "RKFixCategoryBug.h"
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#import <objc/message.h>
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RK_FIX_CATEGORY_BUG(RKPropertyInspector_CoreData)
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// Set Logging Component
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#undef RKLogComponent
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#define RKLogComponent lcl_cRestKitCoreData
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@implementation RKPropertyInspector (CoreData)
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- (NSDictionary *)propertyNamesAndTypesForEntity:(NSEntityDescription *)entity
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{
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NSMutableDictionary *propertyNamesAndTypes = [_propertyNamesToTypesCache objectForKey:[entity name]];
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if (propertyNamesAndTypes) {
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return propertyNamesAndTypes;
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}
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propertyNamesAndTypes = [NSMutableDictionary dictionary];
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for (NSString *name in [entity attributesByName]) {
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NSAttributeDescription *attributeDescription = [[entity attributesByName] valueForKey:name];
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if ([attributeDescription attributeValueClassName]) {
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[propertyNamesAndTypes setValue:NSClassFromString([attributeDescription attributeValueClassName]) forKey:name];
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} else if ([attributeDescription attributeType] == NSTransformableAttributeType &&
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![name isEqualToString:@"_mapkit_hasPanoramaID"]) {
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const char *className = [[entity managedObjectClassName] cStringUsingEncoding:NSUTF8StringEncoding];
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const char *propertyName = [name cStringUsingEncoding:NSUTF8StringEncoding];
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Class managedObjectClass = objc_getClass(className);
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// property_getAttributes() returns everything we need to implement this...
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// See: http://developer.apple.com/mac/library/DOCUMENTATION/Cocoa/Conceptual/ObjCRuntimeGuide/Articles/ocrtPropertyIntrospection.html#//apple_ref/doc/uid/TP40008048-CH101-SW5
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objc_property_t prop = class_getProperty(managedObjectClass, propertyName);
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NSString *attributeString = [NSString stringWithCString:property_getAttributes(prop) encoding:NSUTF8StringEncoding];
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const char *destinationClassName = [[RKPropertyInspector propertyTypeFromAttributeString:attributeString] cStringUsingEncoding:NSUTF8StringEncoding];
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Class destinationClass = objc_getClass(destinationClassName);
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if (destinationClass) {
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[propertyNamesAndTypes setObject:destinationClass forKey:name];
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}
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}
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}
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for (NSString *name in [entity relationshipsByName]) {
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NSRelationshipDescription *relationshipDescription = [[entity relationshipsByName] valueForKey:name];
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if ([relationshipDescription isToMany]) {
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[propertyNamesAndTypes setValue:[NSSet class] forKey:name];
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} else {
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NSEntityDescription *destinationEntity = [relationshipDescription destinationEntity];
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Class destinationClass = NSClassFromString([destinationEntity managedObjectClassName]);
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[propertyNamesAndTypes setValue:destinationClass forKey:name];
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}
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}
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[_propertyNamesToTypesCache setObject:propertyNamesAndTypes forKey:[entity name]];
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RKLogDebug(@"Cached property names and types for Entity '%@': %@", entity, propertyNamesAndTypes);
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return propertyNamesAndTypes;
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}
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- (Class)typeForProperty:(NSString *)propertyName ofEntity:(NSEntityDescription *)entity
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{
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return [[self propertyNamesAndTypesForEntity:entity] valueForKey:propertyName];
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}
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@end
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