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96 lines
2.8 KiB
96 lines
2.8 KiB
////////////////////////////////////////////////////////////////////////////
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//
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// Copyright 2014 Realm Inc.
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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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////////////////////////////////////////////////////////////////////////////
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#import "AppDelegate.h"
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#import <Realm/Realm.h>
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// Define your models
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@interface Dog : RLMObject
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@property NSString *name;
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@property NSInteger age;
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@end
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@implementation Dog
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// No need for implementation
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@end
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RLM_ARRAY_TYPE(Dog)
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@interface Person : RLMObject
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@property NSString *name;
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@property RLMArray<Dog> *dogs;
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@end
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@implementation Person
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@end
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@implementation AppDelegate
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- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
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{
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self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
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self.window.rootViewController = [[UIViewController alloc] init];
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[self.window makeKeyAndVisible];
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[[NSFileManager defaultManager] removeItemAtURL:[RLMRealmConfiguration defaultConfiguration].fileURL error:nil];
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// Create a standalone object
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Dog *mydog = [[Dog alloc] init];
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// Set & read properties
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mydog.name = @"Rex";
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mydog.age = 9;
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NSLog(@"Name of dog: %@", mydog.name);
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// Realms are used to group data together
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RLMRealm *realm = [RLMRealm defaultRealm]; // Create realm pointing to default file
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// Save your object
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[realm beginWriteTransaction];
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[realm addObject:mydog];
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[realm commitWriteTransaction];
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// Query
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RLMResults *results = [Dog objectsInRealm:realm where:@"name contains 'x'"];
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// Queries are chainable!
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RLMResults *results2 = [results objectsWhere:@"age > 8"];
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NSLog(@"Number of dogs: %li", (unsigned long)results2.count);
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// Link objects
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Person *person = [[Person alloc] init];
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person.name = @"Tim";
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[person.dogs addObject:mydog];
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[realm beginWriteTransaction];
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[realm addObject:person];
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[realm commitWriteTransaction];
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// Multi-threading
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dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
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@autoreleasepool {
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RLMRealm *otherRealm = [RLMRealm defaultRealm];
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RLMResults *otherResults = [Dog objectsInRealm:otherRealm where:@"name contains 'Rex'"];
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NSLog(@"Number of dogs: %li", (unsigned long)otherResults.count);
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}
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});
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return YES;
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}
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@end
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