Swift 学习中的一点体会，不断更新中。。。

#import "SObjectData.h"

@interface SampleRequestSObjectData : SObjectData

@property (nonatomic, copy) NSString *name;
@property (nonatomic, copy) NSString *contactId;
@property (nonatomic, copy) NSString *contactName;
@property (nonatomic, copy) NSString *productId;
@property (nonatomic, copy) NSString *productName;
@property (nonatomic, copy) NSString *deliveryDate;
@property (nonatomic, copy) NSNumber *quantity;
@property (nonatomic, copy) NSString *status;
@property (nonatomic, copy) NSDictionary *authorizedUsers;
@property (nonatomic, copy) NSArray *userRecords;
@property (nonatomic, copy) NSArray *attachments;

@end


//
//  SampleRequestSObjectData.m
//  SFDCOfflinePoc
//
//  Created by PAULO VITOR MAGACHO DA SILVA on 1/24/16.
//  Copyright © 2016 Topcoder Inc. All rights reserved.
//

#import "SampleRequestSObjectData.h"
#import "SampleRequestSObjectDataSpec.h"
#import "SObjectData+Internal.h"
#import <SmartSync/SFSmartSyncConstants.h>

@implementation SampleRequestSObjectData

+ (SObjectDataSpec *)dataSpec {
    static SampleRequestSObjectDataSpec *sDataSpec = nil;
    if (sDataSpec == nil) {
        sDataSpec = [[SampleRequestSObjectDataSpec alloc] init];
    }
    return sDataSpec;
}

#pragma mark - Property getters / setters

- (NSString *)name {
    return [self nonNullFieldValue:kSampleRequestNameField];
}

- (void)setName:(NSString *)name {
    [self updateSoupForFieldName:kSampleRequestNameField fieldValue:name];
}

- (NSString *)contactId {
    return [self nonNullFieldValue:kSampleRequestContactField];
}

- (void)setContactId:(NSString *)contactId {
    [self updateSoupForFieldName:kSampleRequestContactField fieldValue:contactId];
}

- (NSString *)contactName {
    return [[self nonNullFieldValue:kSampleRequestContactQueryField] objectForKey:@"Name"];
}

- (NSString *)productId {
    return [self nonNullFieldValue:kSampleRequestProductField];
}

- (void)setProductId:(NSString *)productId {
    [self updateSoupForFieldName:kSampleRequestProductField fieldValue:productId];
}

- (NSString *)productName {
    return [[self nonNullFieldValue:kSampleRequestProductQueryField] objectForKey:@"Name"];
}

- (NSString *)deliveryDate {
    return [self nonNullFieldValue:kSampleRequestDeliveryDateField];
}

- (void)setDeliveryDate:(NSString *)deliveryDate {
    [self updateSoupForFieldName:kSampleRequestDeliveryDateField fieldValue:deliveryDate];
}

- (NSString *)quantity {
    return [self nonNullFieldValue:kSampleRequestQuantityField];
}

- (void)setQuantity:(NSString *)quantity {
    [self updateSoupForFieldName:kSampleRequestQuantityField fieldValue:quantity];
}

- (NSString *)status {
    return [self nonNullFieldValue:kSampleRequestStatusField];
}

- (void)setStatus:(NSString *)status {
    [self updateSoupForFieldName:kSampleRequestStatusField fieldValue:status];
}

- (NSDictionary *)authorizedUsers {
    return [self nonNullFieldValue:kSampleRequestAuthorizedUsersField];
}

- (void)setAuthorizedUsers:(NSDictionary *)authorizedUsers {
    [self updateSoupForFieldName:kSampleRequestAuthorizedUsersField fieldValue:authorizedUsers];
}

- (NSArray *)attachments {
    return [self nonNullFieldValue:kSampleRequestAttachmentsField];
}

- (void)setAttachments:(NSArray *)attachment {
    [self updateSoupForFieldName:kSampleRequestAttachmentsField fieldValue:attachment];
}


- (NSArray *) userRecords {
    int totalSize = [[self.authorizedUsers objectForKey:@"totalSize"] intValue];
    if (totalSize > 0) {
        return [self.authorizedUsers objectForKey:@"records"];
    }
    return nil;
}

@end

struct Rect {
    var origin = Point()
    var size = Size()
    var center: Point {
        get {
            let centerX = origin.x + (size.width / 2)
            let centerY = origin.y + (size.height / 2)
            return Point(x: centerX, y: centerY)
        }
        set(newCenter) {
            origin.x = newCenter.x - (size.width / 2)
            origin.y = newCenter.y - (size.height / 2)
        }
    }
}