Merge pull request #3 from joshdholtz/protocol-like

Protocol like

Author: Josh Holtz

Classes/JSONAPIResource.h

@@ -27,4 +27,6 @@
 
 - (void)linkLinks:(NSDictionary*)linked;
 
+- (NSDictionary *)mapKeysToProperties;
+
 @end

Classes/JSONAPIResource.m

@@ -63,6 +63,27 @@ - (id)initWithDictionary:(NSDictionary*)dict withLinked:(NSDictionary*)linked {
     if (self) {
         [self setWithDictionary:dict];
         [self linkLinks:linked];
+        
+        
+        for (NSString *key in [self mapKeysToProperties]) {
+            if ([key hasPrefix:@"links."] == YES) {
+                
+                NSString *propertyName = [[self mapKeysToProperties] objectForKey:key];
+                NSString *linkedResource = [key stringByReplacingOccurrencesOfString:@"links." withString:@""];
+                
+                id resource = [self linkedResourceForKey:linkedResource];
+                if (resource != nil) {
+                    @try {
+                        [self setValue:resource forKey:propertyName];
+                    }
+                    @catch (NSException *exception) {
+                        NSLog(@"JSONAPIResource Warning - %@", [exception description]);
+                    }
+                }
+                
+            }
+        }
+        
     }
     return self;
 }

Project/JSONAPI/CommentResource.h

@@ -10,6 +10,8 @@
 
 @interface CommentResource : JSONAPIResource
 
+@property (nonatomic, strong) NSString *mapText;
+
 - (NSString*)text;
 
 @end

Project/JSONAPI/CommentResource.m

@@ -14,4 +14,10 @@ - (NSString *)text {
     return [self objectForKey:@"text"];
 }
 
+- (NSDictionary *)mapKeysToProperties {
+    return @{
+             @"text" : @"mapText"
+             };
+}
+
 @end

Project/JSONAPI/PeopleResource.h

@@ -10,6 +10,8 @@
 
 @interface PeopleResource : JSONAPIResource
 
+@property (nonatomic, strong) NSString *mapName;
+
 - (NSString*)name;
 
 @end

Project/JSONAPI/PeopleResource.m

@@ -14,4 +14,10 @@ - (NSString *)name {
     return [self objectForKey:@"name"];
 }
 
+- (NSDictionary *)mapKeysToProperties {
+    return @{
+             @"name" : @"mapName"
+             };
+}
+
 @end

Project/JSONAPI/PostResource.h

@@ -13,6 +13,10 @@
 
 @interface PostResource : JSONAPIResource
 
+@property (nonatomic, strong) NSString *mapName;
+@property (nonatomic, strong) PeopleResource *mapAuthor;
+@property (nonatomic, strong) NSArray *mapComments;
+
 - (PeopleResource*)author;
 - (NSArray*)comments;
 - (NSString*)name;

Project/JSONAPI/PostResource.m

@@ -22,4 +22,12 @@ - (NSString *)name {
     return [self objectForKey:@"name"];
 }
 
+- (NSDictionary *)mapKeysToProperties {
+    return @{
+             @"name" : @"mapName",
+             @"links.author" : @"mapAuthor",
+             @"links.comments" : @"mapComments"
+             };
+}
+
 @end

Project/JSONAPI/ViewController.m

@@ -33,6 +33,7 @@ - (void)viewDidLoad
     // Parsing using JSONAPI and JSONAPIResource
     JSONAPI *jsonApi = [JSONAPI JSONAPIWithDictionary:[self authorResponse]];
 
+    NSLog(@"------------ Parsing using JSONAPI and JSONAPIResource");
     NSArray *posts = [jsonApi resourcesForKey:@"posts"];
     for (JSONAPIResource *post in posts) {
 
@@ -46,6 +47,7 @@ - (void)viewDidLoad
     }
 
     // Parsing using JSONAPI and modeled resources (PostResource, PeopleResource, CommentResource
+    NSLog(@"\n\n------------ Parsing using JSONAPI and modeled resources (PostResource, PeopleResource, CommentResource");
     for (PostResource *post in posts) {
 
         PeopleResource *author = post.author;
@@ -57,6 +59,19 @@ - (void)viewDidLoad
         }
     }
 
+    // Parsing using JSONAPI, modeled resources, and mapped properties (PostResource, PeopleResource, CommentResource
+    NSLog(@"\n\n------------ Parsing using JSONAPI, modeled resources, and mapped properties (PostResource, PeopleResource, CommentResource");
+    for (PostResource *post in posts) {
+        
+        PeopleResource *author = post.author;
+        NSLog(@"\"%@\" by %@", post.mapName, author.mapName);
+        
+        NSArray *comments = post.mapComments;
+        for (CommentResource *comment in comments) {
+            NSLog(@"\t%@", comment.mapText);
+        }
+    }
+    
 }
 
 - (void)didReceiveMemoryWarning

Project/JSONAPITests/JSONAPITests.m

@@ -219,8 +219,8 @@ - (void)testResourceModels {
     JSONAPI *jsonAPI = [[JSONAPI alloc] initWithDictionary:json];
     PostResource *postResource = [jsonAPI resourceForKey:@"posts"];
 
-    XCTAssertEqual([postResource class], [PostResource class], @"Post resource is not of type PostResource, but %@", [postResource class]);
-    XCTAssertEqual([postResource.author class], [PeopleResource class], @"Post resource's author is not of type PeopleResource, but %@", [postResource.author class]);
+    XCTAssert([postResource class] == [PostResource class], @"Post resource is not of type PostResource, but %@", [postResource class]);
+    XCTAssert([postResource.author class] == [PeopleResource class], @"Post resource's author is not of type PeopleResource, but %@", [postResource.author class]);
     XCTAssertEqualObjects(postResource.name, [post objectForKey:@"name"], @"Post name is not equal to %@", [post objectForKey:@"name"]);
     XCTAssertEqualObjects(postResource.author.name, [linkedAuthor9 objectForKey:@"name"], @"Author name is not equal to %@", [post objectForKey:@"name"]);
 }
@@ -247,4 +247,23 @@ - (void)testLinksInLinked {
     XCTAssertEqualObjects([authorResource objectForKey:@"name"], [linkedAuthor11 objectForKey:@"name"], @"Author name should equal %@", [chapter objectForKey:@"name"]);
 }
 
+- (void)testMapKeysToProperties {
+    NSDictionary *meta = @{ @"page_number" : @1, @"number_of_pages" : @5};
+    NSDictionary *linkedAuthor9 = @{ @"id" : @9, @"name" : @"Josh" };
+    NSDictionary *linkedAuthor11 = @{ @"id" : @11, @"name" : @"Bandit" };
+    NSArray *linkedAuthors = @[ linkedAuthor9, linkedAuthor11 ];
+    NSDictionary *linked = @{ @"authors" : linkedAuthors };
+    NSDictionary *post = @{ @"id" : @1, @"name" : @"Josh is awesome", @"links" : @{ @"author" : @9 } };
+    NSArray *posts = @[ post ];
+    NSDictionary *json = @{ @"meta" : meta, @"linked" : linked, @"posts" : posts };
+    
+    JSONAPI *jsonAPI = [[JSONAPI alloc] initWithDictionary:json];
+    PostResource *postResource = [jsonAPI resourceForKey:@"posts"];
+    
+    XCTAssert([postResource class] == [PostResource class], @"Post resource is not of type PostResource, but %@", [postResource class]);
+    XCTAssert([postResource.mapAuthor class] == [PeopleResource class], @"Post resource's author is not of type PeopleResource, but %@", [postResource.mapAuthor class]);
+    XCTAssertEqualObjects(postResource.mapName, [post objectForKey:@"name"], @"Post name is not equal to %@", [post objectForKey:@"name"]);
+    XCTAssertEqualObjects(postResource.author.name, [linkedAuthor9 objectForKey:@"name"], @"Author name is not equal to %@", [post objectForKey:@"name"]);
+}
+
 @end