Feature: mappable meta

Brick.xcodeproj/project.pbxproj

@@ -15,6 +15,8 @@
 		BD6D7AE21CBA768A00FBF0BD /* Fakery.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = BD6D7AE11CBA768A00FBF0BD /* Fakery.framework */; };
 		BDDA5FEB1CBBCF45000FD5A6 /* ViewConfigurable.swift in Sources */ = {isa = PBXBuildFile; fileRef = BDDA5FEA1CBBCF45000FD5A6 /* ViewConfigurable.swift */; };
 		BDDA5FEC1CBBCF45000FD5A6 /* ViewConfigurable.swift in Sources */ = {isa = PBXBuildFile; fileRef = BDDA5FEA1CBBCF45000FD5A6 /* ViewConfigurable.swift */; };
+		D57832991CE142DE005ED144 /* Helpers.swift in Sources */ = {isa = PBXBuildFile; fileRef = D57832961CE142C8005ED144 /* Helpers.swift */; };
+		D578329A1CE142DF005ED144 /* Helpers.swift in Sources */ = {isa = PBXBuildFile; fileRef = D57832961CE142C8005ED144 /* Helpers.swift */; };
 		D5ACAC9A1CCE439F00567809 /* Extensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5ACAC991CCE439F00567809 /* Extensions.swift */; };
 		D5ACAC9B1CCE439F00567809 /* Extensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5ACAC991CCE439F00567809 /* Extensions.swift */; };
 		D5ACAC9F1CCE45CE00567809 /* ExtensionsSpec.swift in Sources */ = {isa = PBXBuildFile; fileRef = D5ACAC9C1CCE449A00567809 /* ExtensionsSpec.swift */; };
@@ -60,6 +62,7 @@
 		BDDA5FEA1CBBCF45000FD5A6 /* ViewConfigurable.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ViewConfigurable.swift; sourceTree = "<group>"; };
 		D500FD111C3AABED00782D78 /* Playground-iOS.playground */ = {isa = PBXFileReference; lastKnownFileType = file.playground; path = "Playground-iOS.playground"; sourceTree = "<group>"; };
 		D500FD121C3AAC8E00782D78 /* Playground-Mac.playground */ = {isa = PBXFileReference; lastKnownFileType = file.playground; path = "Playground-Mac.playground"; sourceTree = "<group>"; };
+		D57832961CE142C8005ED144 /* Helpers.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Helpers.swift; sourceTree = "<group>"; };
 		D5ACAC991CCE439F00567809 /* Extensions.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Extensions.swift; sourceTree = "<group>"; };
 		D5ACAC9C1CCE449A00567809 /* ExtensionsSpec.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ExtensionsSpec.swift; sourceTree = "<group>"; };
 		D5B2E89F1C3A780C00C0327D /* Brick.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Brick.framework; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -206,6 +209,7 @@
 			children = (
 				D5C629971C3A8BDA007F7B7C /* VIewModelSpec.swift */,
 				D5ACAC9C1CCE449A00567809 /* ExtensionsSpec.swift */,
+				D57832961CE142C8005ED144 /* Helpers.swift */,
 			);
 			path = Shared;
 			sourceTree = "<group>";
@@ -482,6 +486,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				D5ACAC9F1CCE45CE00567809 /* ExtensionsSpec.swift in Sources */,
+				D57832991CE142DE005ED144 /* Helpers.swift in Sources */,
 				D5C6299E1C3A8C75007F7B7C /* VIewModelSpec.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -502,6 +507,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				D5ACACA01CCE45CF00567809 /* ExtensionsSpec.swift in Sources */,
+				D578329A1CE142DF005ED144 /* Helpers.swift in Sources */,
 				D5C6299C1C3A8BDA007F7B7C /* VIewModelSpec.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

BrickTests/Shared/ExtensionsSpec.swift

@@ -51,5 +51,19 @@ class ExtensionsSpec: QuickSpec {
         }
       }
     }
+
+    describe("Mappable+Brick") {
+      let item = Meta(id: 11, name: "Name")
+
+      describe("#metaDictionary") {
+        it("returns an array of properties") {
+          var dictionary = ["id": 11, "name": "Name"]
+          var result = item.metaProperties
+
+          expect(result["id"] as? Int).to(equal(dictionary["id"]))
+          expect(result["name"] as? String).to(equal(dictionary["name"]))
+        }
+      }
+    }
   }
 }

BrickTests/Shared/Helpers.swift

@@ -0,0 +1,15 @@
+import Tailor
+import Sugar
+
+struct Meta {
+  var id = 0
+  var name: String?
+}
+
+extension Meta: Mappable {
+
+  init(_ map: JSONDictionary) {
+    id <- map.property("id")
+    name <- map.property("name")
+  }
+}

BrickTests/Shared/VIewModelSpec.swift

@@ -64,12 +64,28 @@ class ViewModelSpec: QuickSpec {
       }
 
       describe("#meta") {
-        beforeEach {
+        it("resolves meta data created from JSON") {
           viewModel = ViewModel(data)
+          expect(viewModel.meta("domain", "")).to(equal(data["meta"]!["domain"]))
         }
 
-        it("resolves meta data") {
-          expect(viewModel.meta("domain", "")).to(equal(data["meta"]!["domain"]))
+        it("resolves meta data created from object") {
+          var data = ["id": 11, "name": "Name"]
+
+          viewModel = ViewModel(meta: Meta(data))
+          expect(viewModel.meta("id", 0)).to(equal(data["id"]))
+          expect(viewModel.meta("name", "")).to(equal(data["name"]))
+        }
+      }
+
+      describe("#metaInstance") {
+        it("resolves meta data created from object") {
+          var data = ["id": 11, "name": "Name"]
+          viewModel = ViewModel(meta: Meta(data))
+          let result: Meta = viewModel.metaInstance()
+
+          expect(result.id).to(equal(data["id"]))
+          expect(result.name).to(equal(data["name"]))
         }
       }
 

Sources/Shared/Extensions.swift

@@ -1,3 +1,5 @@
+import Tailor
+
 // MARK: - Array
 
 public extension _ArrayType where Generator.Element == ViewModel {
@@ -41,3 +43,29 @@ extension Dictionary where Key: StringLiteralConvertible {
     }
   }
 }
+
+// MARK: - Mappable
+
+extension Mappable {
+
+  /**
+   - Returns: A key-value dictionary.
+   */
+  var metaProperties: [String : AnyObject] {
+    var properties = [String : AnyObject]()
+
+    for tuple in Mirror(reflecting: self).children {
+      guard let key = tuple.label else { continue }
+
+      if let value = tuple.value as? AnyObject {
+        properties[key] = value
+      } else if let value = Mirror(reflecting: tuple.value).descendant("Some") as? AnyObject {
+        properties[key] = value
+      } else {
+        continue
+      }
+    }
+
+    return properties
+  }
+}

Sources/Shared/ViewModel.swift

@@ -138,6 +138,18 @@ public struct ViewModel: Mappable {
     self.relations = relations
   }
 
+  /**
+   Initialization a new instance of a ViewModel and map it to a JSON dictionary
+
+   - Parameter title: The title string for the view model, defaults to empty string
+   - Parameter subtitle: The subtitle string for the view model, default to empty string
+   - Parameter image: Image name or URL as a string, default to empty string
+   */
+  public init(title: String = "", subtitle: String = "", image: String = "", kind: StringConvertible = "", action: String? = nil, size: CGSize = CGSize(width: 0, height: 0), meta: Mappable, relations: [String : [ViewModel]] = [:]) {
+    self.init(title: title, subtitle: subtitle, image: image, kind: kind, action: action,
+              size: size, meta: meta.metaProperties, relations: relations)
+  }
+
   // MARK: - Helpers
 
   /**
@@ -162,6 +174,15 @@ public struct ViewModel: Mappable {
     return meta[key] as? T
   }
 
+  /**
+   A generic convenience method for resolving meta instance
+
+   - Returns: A generic meta instance based on `type`
+   */
+  public func metaInstance<T: Mappable>() -> T {
+    return T(meta)
+  }
+
   /**
    A convenience lookup method for resolving view model relations