feature #7 : 데이터저장(CoreData 활용 기본)

Austin/Austin.xcodeproj/project.pbxproj

@@ -15,6 +15,9 @@
 		95C2DE662AD1455500600202 /* KakaoSDKCert in Frameworks */ = {isa = PBXBuildFile; productRef = 95C2DE652AD1455500600202 /* KakaoSDKCert */; };
 		95C2DE682AD1455500600202 /* KakaoSDKCertCore in Frameworks */ = {isa = PBXBuildFile; productRef = 95C2DE672AD1455500600202 /* KakaoSDKCertCore */; };
 		95C2DE6A2AD1455500600202 /* KakaoSDKCommon in Frameworks */ = {isa = PBXBuildFile; productRef = 95C2DE692AD1455500600202 /* KakaoSDKCommon */; };
+		95C2DF182AD3C6D900600202 /* CoreDataView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 95C2DF172AD3C6D900600202 /* CoreDataView.swift */; };
+		95C2DF1C2AD3C82800600202 /* TestModel.xcdatamodeld in Sources */ = {isa = PBXBuildFile; fileRef = 95C2DF1A2AD3C82800600202 /* TestModel.xcdatamodeld */; };
+		95C2DF1E2AD3CA4300600202 /* TestModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 95C2DF1D2AD3CA4300600202 /* TestModel.swift */; };
 		F013F3D62ACE973500423AFF /* AustinApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = F013F3D52ACE973500423AFF /* AustinApp.swift */; };
 		F013F3D82ACE973500423AFF /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = F013F3D72ACE973500423AFF /* ContentView.swift */; };
 		F013F3DA2ACE973600423AFF /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = F013F3D92ACE973600423AFF /* Assets.xcassets */; };
@@ -28,6 +31,9 @@
 		95C2DE5E2AD141CC00600202 /* LoginKakaoButton.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoginKakaoButton.swift; sourceTree = "<group>"; };
 		95C2DE6B2AD15FDF00600202 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist; path = Info.plist; sourceTree = "<group>"; };
 		95C2DE6D2AD163A800600202 /* Config.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = Config.xcconfig; sourceTree = "<group>"; };
+		95C2DF172AD3C6D900600202 /* CoreDataView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CoreDataView.swift; sourceTree = "<group>"; };
+		95C2DF1B2AD3C82800600202 /* TestModel.xcdatamodel */ = {isa = PBXFileReference; lastKnownFileType = wrapper.xcdatamodel; path = TestModel.xcdatamodel; sourceTree = "<group>"; };
+		95C2DF1D2AD3CA4300600202 /* TestModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TestModel.swift; sourceTree = "<group>"; };
 		F013F3D22ACE973500423AFF /* Austin.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Austin.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		F013F3D52ACE973500423AFF /* AustinApp.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AustinApp.swift; sourceTree = "<group>"; };
 		F013F3D72ACE973500423AFF /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
@@ -65,6 +71,7 @@
 			children = (
 				F013F3D52ACE973500423AFF /* AustinApp.swift */,
 				F013F3D72ACE973500423AFF /* ContentView.swift */,
+				95C2DF152AD3C6BD00600202 /* CoreData */,
 				95C2DE582AD134B900600202 /* Login */,
 			);
 			path = Sources;
@@ -88,6 +95,32 @@
 			path = Login;
 			sourceTree = "<group>";
 		};
+		95C2DF152AD3C6BD00600202 /* CoreData */ = {
+			isa = PBXGroup;
+			children = (
+				95C2DF192AD3C81500600202 /* Model */,
+				95C2DF162AD3C6CD00600202 /* View */,
+			);
+			path = CoreData;
+			sourceTree = "<group>";
+		};
+		95C2DF162AD3C6CD00600202 /* View */ = {
+			isa = PBXGroup;
+			children = (
+				95C2DF172AD3C6D900600202 /* CoreDataView.swift */,
+			);
+			path = View;
+			sourceTree = "<group>";
+		};
+		95C2DF192AD3C81500600202 /* Model */ = {
+			isa = PBXGroup;
+			children = (
+				95C2DF1A2AD3C82800600202 /* TestModel.xcdatamodeld */,
+				95C2DF1D2AD3CA4300600202 /* TestModel.swift */,
+			);
+			path = Model;
+			sourceTree = "<group>";
+		};
 		F013F3C92ACE973500423AFF = {
 			isa = PBXGroup;
 			children = (
@@ -204,11 +237,14 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				95C2DF1C2AD3C82800600202 /* TestModel.xcdatamodeld in Sources */,
 				95C2DE5F2AD141CC00600202 /* LoginKakaoButton.swift in Sources */,
 				95C2DE5A2AD134DF00600202 /* LoginView.swift in Sources */,
+				95C2DF1E2AD3CA4300600202 /* TestModel.swift in Sources */,
 				95C2DE5D2AD13C4200600202 /* LoginAppleButton.swift in Sources */,
 				F013F3D82ACE973500423AFF /* ContentView.swift in Sources */,
 				F013F3D62ACE973500423AFF /* AustinApp.swift in Sources */,
+				95C2DF182AD3C6D900600202 /* CoreDataView.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -461,6 +497,19 @@
 			productName = KakaoSDKCommon;
 		};
 /* End XCSwiftPackageProductDependency section */
+
+/* Begin XCVersionGroup section */
+		95C2DF1A2AD3C82800600202 /* TestModel.xcdatamodeld */ = {
+			isa = XCVersionGroup;
+			children = (
+				95C2DF1B2AD3C82800600202 /* TestModel.xcdatamodel */,
+			);
+			currentVersion = 95C2DF1B2AD3C82800600202 /* TestModel.xcdatamodel */;
+			path = TestModel.xcdatamodeld;
+			sourceTree = "<group>";
+			versionGroupType = wrapper.xcdatamodel;
+		};
+/* End XCVersionGroup section */
 	};
 	rootObject = F013F3CA2ACE973500423AFF /* Project object */;
 }

Austin/Austin/Sources/AustinApp.swift

@@ -11,6 +11,8 @@ import SwiftUI
 
 @main
 struct AustinApp: App {
+    let persistentController = PersistenceController.shared
+
     init() {
        // Kakao SDK 초기화
         guard let apiKey = Bundle.main.object(forInfoDictionaryKey: "KAKAO_APP_KEY") as? String else {
@@ -21,6 +23,7 @@ struct AustinApp: App {
     var body: some Scene {
         WindowGroup {
             ContentView()
+                .environment(\.managedObjectContext, persistentController.container.viewContext)
         }
     }
 }

Austin/Austin/Sources/ContentView.swift

@@ -15,6 +15,11 @@ struct ContentView: View {
                     Image(systemName: "1.square.fill")
                     Text("Login")
                 }
+            CoreDataView()
+                .tabItem {
+                    Image(systemName: "2.square.fill")
+                    Text("Core Data")
+                }
         }
     }
 }

Austin/Austin/Sources/CoreData/Model/TestModel.swift

@@ -0,0 +1,37 @@
+//
+//  TestModel.swift
+//  Austin
+//
+//  Created by Seungui Moon on 10/9/23.
+//
+
+import CoreData
+import SwiftUI
+
+struct PersistenceController {
+  static let shared = PersistenceController()
+
+  let container: NSPersistentContainer
+
+  init(inMemory: Bool = false) {
+        // 여기 name은 .xcdatamodeld의 파일명과 같이야 한다.
+    container = NSPersistentContainer(name: "TestModel")
+    container.loadPersistentStores { _, error in
+      if let error = error as NSError? {
+        fatalError("Unresolved error \(error), \(error.userInfo)")
+      }
+    }
+  }
+    // context 변화에 대해 저장하는 method 생성
+    func saveContext() {
+        let context = container.viewContext
+        if context.hasChanges {
+          do {
+            try context.save()
+          } catch {
+            let nserror = error as NSError
+            fatalError("Unresolved error \(nserror), \(nserror.userInfo)")
+          }
+        }
+     }
+}

Austin/Austin/Sources/CoreData/Model/TestModel.xcdatamodeld/TestModel.xcdatamodel/contents

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="22222" systemVersion="23A344" minimumToolsVersion="Automatic" sourceLanguage="Swift" usedWithSwiftData="YES" userDefinedModelVersionIdentifier="">
+    <entity name="People" representedClassName="People" syncable="YES" codeGenerationType="class">
+        <attribute name="groupName" attributeType="String"/>
+        <relationship name="members" optional="YES" toMany="YES" deletionRule="Nullify" destinationEntity="Person" inverseName="family" inverseEntity="Person"/>
+    </entity>
+    <entity name="Person" representedClassName="Person" syncable="YES" codeGenerationType="class">
+        <attribute name="age" attributeType="Integer 32" defaultValueString="0" usesScalarValueType="YES"/>
+        <attribute name="name" attributeType="String"/>
+        <relationship name="family" optional="YES" maxCount="1" deletionRule="Nullify" destinationEntity="People" inverseName="members" inverseEntity="People"/>
+    </entity>
+</model>

Austin/Austin/Sources/CoreData/View/CoreDataView.swift

@@ -0,0 +1,84 @@
+//
+//  CoreDataView.swift
+//  Austin
+//
+//  Created by Seungui Moon on 10/9/23.
+//
+
+import SwiftUI
+
+struct CoreDataView: View {
+    @Environment(\.managedObjectContext) private var managedObjectContext
+    @FetchRequest(
+        entity: Person.entity(),
+        sortDescriptors: [
+            NSSortDescriptor(keyPath: \Person.age, ascending: true)
+        ]
+    ) private var people: FetchedResults<Person>
+
+    var body: some View {
+        VStack {
+            Spacer()
+                .frame(height: 50)
+            VStack {
+                ForEach(people, id: \.self) { p in
+                    HStack {
+                        Text("\(p.name ?? "defaultName")")
+                        Spacer()
+                        Text("\(p.age)")
+                    }
+                    .font(.title)
+                    .padding(.bottom, 20)
+                }
+            }
+            Spacer()
+            Button {
+                addPerson(name: "person\(people.count)", age: Int32(people.count + 20))
+            } label: {
+                Text("add person")
+                    .frame(width: 300, height: 50)
+                    .background(.yellow)
+            }
+            Button {
+                deletePerson(at: IndexSet([people.count - 1]))
+            } label: {
+                Text("delete")
+                    .frame(width: 300, height: 50)
+                    .background(.orange)
+            }
+            Spacer()
+                .frame(height: 30)
+        }
+        .padding()
+    }
+
+    // MARK: 이후 ViewModel로 분리 필요
+    func saveContext() {
+        do {
+          try managedObjectContext.save()
+        } catch {
+          print("Error saving managed object context: \(error)")
+        }
+    }
+
+    func addPerson(name: String, age: Int32) {
+        let newPerson = Person(context: managedObjectContext)
+
+        newPerson.name = name
+        newPerson.age = age
+
+        saveContext()
+    }
+
+    func deletePerson(at offsets: IndexSet) {
+      offsets.forEach { index in
+        let person = self.people[index]
+        self.managedObjectContext.delete(person)
+      }
+      saveContext()
+    }
+}
+
+#Preview {
+    CoreDataView()
+}