Update docs/code samples to use dependencies preview trait

Examples/CaseStudies/Animations.swift

@@ -31,7 +31,7 @@ struct AnimationsCaseStudy: SwiftUICaseStudy {
           number += 1
           let fact = try await String(
             decoding: URLSession.shared
-              .data(from: URL(string: "http://numberapi.com/\(number)")!).0,
+              .data(from: URL(string: "http://number-trivia.com/\(number)")!).0,
             as: UTF8.self
           )
           try await database.write { db in
@@ -72,10 +72,7 @@ extension DatabaseWriter where Self == DatabaseQueue {
   }
 }
 
-#Preview {
-  let _ = prepareDependencies {
-    $0.defaultDatabase = .animationDatabase
-  }
+#Preview(traits: .dependencies { $0.defaultDatabase = .animationDatabase }) {
   NavigationStack {
     CaseStudyView {
       AnimationsCaseStudy()

Examples/CaseStudies/DynamicQuery.swift

@@ -65,7 +65,7 @@ struct DynamicQueryDemo: SwiftUICaseStudy {
           number += 1
           let fact = try await String(
             decoding: URLSession.shared
-              .data(from: URL(string: "http://numberapi.com/\(number)")!).0,
+              .data(from: URL(string: "http://number-trivia.com/\(number)")!).0,
             as: UTF8.self
           )
           try await database.write { db in
@@ -126,10 +126,7 @@ extension DatabaseWriter where Self == DatabaseQueue {
   }
 }
 
-#Preview {
-  let _ = prepareDependencies {
-    $0.defaultDatabase = .dynamicQueryDatabase
-  }
+#Preview(traits: .dependencies { $0.defaultDatabase = .dynamicQueryDatabase }) {
   NavigationStack {
     CaseStudyView {
       DynamicQueryDemo()

Examples/CaseStudies/ObservableModelDemo.swift

@@ -61,7 +61,7 @@ private class Model {
     await withErrorReporting {
       let fact = try await String(
         decoding: URLSession.shared
-          .data(from: URL(string: "http://numberapi.com/\(number)")!).0,
+          .data(from: URL(string: "http://number-trivia.com/\(number)")!).0,
         as: UTF8.self
       )
       try await database.write { db in
@@ -112,10 +112,7 @@ extension DatabaseWriter where Self == DatabaseQueue {
   }
 }
 
-#Preview {
-  let _ = prepareDependencies {
-    $0.defaultDatabase = .observableModelDatabase
-  }
+#Preview(traits: .dependencies { $0.defaultDatabase = .observableModelDatabase }) {
   NavigationStack {
     CaseStudyView {
       ObservableModelDemo()

Examples/CaseStudies/SectionedQuery.swift

@@ -119,10 +119,11 @@ extension DatabaseWriter where Self == DatabaseQueue {
   }
 }
 
-#Preview {
-  let _ = prepareDependencies {
+#Preview(
+  traits: .dependencies {
     $0.defaultDatabase = .sectionedQueryDatabase
   }
+) {
   NavigationStack {
     CaseStudyView {
       SectionedQueryDemo()

Examples/CaseStudies/SwiftDataTemplateDemo.swift

@@ -81,10 +81,7 @@ extension DatabaseWriter where Self == DatabaseQueue {
   }
 }
 
-#Preview {
-  let _ = prepareDependencies {
-    $0.defaultDatabase = .swiftDataTemplateDatabase
-  }
+#Preview(traits: .dependencies { $0.defaultDatabase = .swiftDataTemplateDatabase }) {
   CaseStudyView {
     SwiftDataTemplateView()
   }

Examples/CaseStudies/SwiftUIDemo.swift

@@ -40,7 +40,7 @@ struct SwiftUIDemo: SwiftUICaseStudy {
           number += 1
           let fact = try await String(
             decoding: URLSession.shared
-              .data(from: URL(string: "http://numberapi.com/\(number)")!).0,
+              .data(from: URL(string: "http://number-trivia.com/\(number)")!).0,
             as: UTF8.self
           )
           try await database.write { db in
@@ -81,10 +81,7 @@ extension DatabaseWriter where Self == DatabaseQueue {
   }
 }
 
-#Preview {
-  let _ = prepareDependencies {
-    $0.defaultDatabase = .swiftUIDatabase
-  }
+#Preview(traits: .dependencies { $0.defaultDatabase = .swiftUIDatabase }) {
   NavigationStack {
     CaseStudyView {
       SwiftUIDemo()

Examples/CaseStudies/TransactionDemo.swift

@@ -43,7 +43,7 @@ struct TransactionDemo: SwiftUICaseStudy {
           number += 1
           let fact = try await String(
             decoding: URLSession.shared
-              .data(from: URL(string: "http://numberapi.com/\(number)")!).0,
+              .data(from: URL(string: "http://number-trivia.com/\(number)")!).0,
             as: UTF8.self
           )
           try await database.write { db in
@@ -98,10 +98,7 @@ extension DatabaseWriter where Self == DatabaseQueue {
   }
 }
 
-#Preview {
-  let _ = prepareDependencies {
-    $0.defaultDatabase = .transactionDemoDatabase
-  }
+#Preview(traits: .dependencies { $0.defaultDatabase = .transactionDemoDatabase }) {
   NavigationStack {
     CaseStudyView {
       TransactionDemo()

Examples/CaseStudies/UIKitDemo.swift

@@ -90,7 +90,7 @@ final class UIKitCaseStudyViewController: UICollectionViewController, UIKitCaseS
         number += 1
         let fact = try? await String(
           decoding: URLSession.shared
-            .data(from: URL(string: "http://numberapi.com/\(number)")!).0,
+            .data(from: URL(string: "http://number-trivia.com/\(number)")!).0,
           as: UTF8.self
         )
         if let fact {
@@ -138,9 +138,10 @@ extension DatabaseWriter where Self == DatabaseQueue {
   }
 }
 
-#Preview {
-  let _ = prepareDependencies {
+#Preview(
+  traits: .dependencies {
     $0.defaultDatabase = .uiKitDemoDatabase
   }
+) {
   UINavigationController(caseStudy: UIKitCaseStudyViewController())
 }

Examples/CloudKitDemo/CountersListFeature.swift

@@ -138,11 +138,12 @@ struct CounterRow: View {
   }
 }
 
-#Preview {
-  let _ = try! prepareDependencies {
+#Preview(
+  traits: .dependencies {
     try $0.bootstrapDatabase()
     try? $0.defaultDatabase.seedSampleData()
   }
+) {
   NavigationStack {
     CountersListView()
   }

Examples/Examples.xcodeproj/project.pbxproj

@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 77;
+	objectVersion = 100;
 	objects = {
 
 /* Begin PBXBuildFile section */
@@ -1255,8 +1255,8 @@
 			isa = XCRemoteSwiftPackageReference;
 			repositoryURL = "https://github.com/pointfreeco/swift-dependencies";
 			requirement = {
-				kind = upToNextMajorVersion;
-				minimumVersion = 1.7.0;
+				branch = "eager-preview-trait-fix";
+				kind = branch;
 			};
 		};
 		DCBE8A122D4842BF0071F499 /* XCRemoteSwiftPackageReference "swift-case-paths" */ = {

Examples/Integration/Regression Coverage/ChildIdentityReset.swift

@@ -93,10 +93,11 @@ extension DatabaseWriter where Self == DatabaseQueue {
   }
 }
 
-#Preview {
-  let _ = prepareDependencies {
+#Preview(
+  traits: .dependencies {
     $0.defaultDatabase = .childIdentityResetDatabase
   }
+) {
   NavigationStack {
     CaseStudyView {
       ChildIdentityResetCaseStudy()

Examples/Integration/Regression Coverage/ParentDrivenQuery.swift

@@ -98,10 +98,11 @@ extension DatabaseWriter where Self == DatabaseQueue {
   }
 }
 
-#Preview {
-  let _ = prepareDependencies {
+#Preview(
+  traits: .dependencies {
     $0.defaultDatabase = .parentDrivenQueryDatabase
   }
+) {
   NavigationStack {
     CaseStudyView {
       ParentDrivenQueryCaseStudy()

Examples/Integration/Regression Coverage/ParentRerenderAnimations.swift

@@ -82,10 +82,11 @@ extension DatabaseWriter where Self == DatabaseQueue {
   }
 }
 
-#Preview {
-  let _ = prepareDependencies {
+#Preview(
+  traits: .dependencies {
     $0.defaultDatabase = .parentRerenderAnimationsDatabase
   }
+) {
   NavigationStack {
     CaseStudyView {
       ParentRerenderAnimationsCaseStudy()

Examples/Integration/Regression Coverage/ParentRerenderCancellation.swift

@@ -88,10 +88,11 @@ extension DatabaseWriter where Self == DatabaseQueue {
   }
 }
 
-#Preview {
-  let _ = prepareDependencies {
+#Preview(
+  traits: .dependencies {
     $0.defaultDatabase = .parentRerenderCancellationDatabase
   }
+) {
   NavigationStack {
     CaseStudyView {
       ParentRerenderCancellationCaseStudy()

Examples/Integration/Regression Coverage/ParentRerenderDynamicQuery.swift

@@ -92,10 +92,11 @@ extension DatabaseWriter where Self == DatabaseQueue {
   }
 }
 
-#Preview {
-  let _ = prepareDependencies {
+#Preview(
+  traits: .dependencies {
     $0.defaultDatabase = .parentRerenderDynamicQueryDatabase
   }
+) {
   NavigationStack {
     CaseStudyView {
       ParentRerenderDynamicQueryCaseStudy()

Examples/Integration/Regression Coverage/ParentRerenderLoadError.swift

@@ -63,10 +63,11 @@ extension DatabaseWriter where Self == DatabaseQueue {
   }
 }
 
-#Preview {
-  let _ = prepareDependencies {
+#Preview(
+  traits: .dependencies {
     $0.defaultDatabase = .parentRerenderLoadErrorDatabase
   }
+) {
   NavigationStack {
     CaseStudyView {
       ParentRerenderLoadErrorCaseStudy()

Examples/Integration/Regression Coverage/ParentRerenderLoadedData.swift

@@ -88,10 +88,11 @@ extension DatabaseWriter where Self == DatabaseQueue {
   }
 }
 
-#Preview {
-  let _ = prepareDependencies {
+#Preview(
+  traits: .dependencies {
     $0.defaultDatabase = .parentRerenderLoadedDataDatabase
   }
+) {
   NavigationStack {
     CaseStudyView {
       ParentRerenderLoadedDataCaseStudy()

Examples/Reminders/ReminderForm.swift

@@ -205,14 +205,13 @@ extension Optional {
 
 struct ReminderFormPreview: PreviewProvider {
   static var previews: some View {
-    let (remindersList, reminder) = try! prepareDependencies {
+    let (reminder, remindersList) = try! prepareDependencies {
       $0.defaultDatabase = try Reminders.appDatabase()
-      return try $0.defaultDatabase.write { db in
-        let remindersList = try RemindersList.fetchOne(db)!
-        return (
-          remindersList,
-          try Reminder.where { $0.remindersListID.eq(remindersList.id) }.fetchOne(db)!
-        )
+      try? $0.defaultDatabase.seedSampleData()
+      return try! $0.defaultDatabase.read { db in
+        try Reminder
+          .join(RemindersList.all) { $0.remindersListID.eq($1.id) }
+          .fetchOne(db)!
       }
     }
     NavigationStack {

Examples/Reminders/ReminderRow.swift

@@ -155,30 +155,29 @@ struct ReminderRow: View {
   }
 }
 
-struct ReminderRowPreview: PreviewProvider {
-  static var previews: some View {
-    var reminder: Reminder!
-    var remindersList: RemindersList!
-    let _ = try! prepareDependencies {
-      $0.defaultDatabase = try Reminders.appDatabase()
-      try $0.defaultDatabase.read { db in
-        reminder = try Reminder.fetchOne(db)
-        remindersList = try RemindersList.fetchOne(db)!
-      }
+#Preview(
+  traits: .dependencies {
+    $0.defaultDatabase = try Reminders.appDatabase()
+    try $0.defaultDatabase.seedSampleData()
+  }
+) {
+  @Dependency(\.defaultDatabase) var database
+  let (reminder, remindersList) = {
+    try! database.read { db in
+      (try Reminder.fetchOne(db)!, try RemindersList.fetchOne(db)!)
     }
-
-    NavigationStack {
-      List {
-        ReminderRow(
-          color: remindersList.color,
-          isPastDue: false,
-          notes: reminder.notes.replacingOccurrences(of: "\n", with: " "),
-          reminder: reminder,
-          remindersList: remindersList,
-          showCompleted: true,
-          tags: "#point-free #adulting"
-        )
-      }
+  }()
+  NavigationStack {
+    List {
+      ReminderRow(
+        color: remindersList.color,
+        isPastDue: false,
+        notes: reminder.notes.replacingOccurrences(of: "\n", with: " "),
+        reminder: reminder,
+        remindersList: remindersList,
+        showCompleted: true,
+        tags: "#point-free #adulting"
+      )
     }
   }
 }