feat: Implements common database interactions as dependencies.

Sources/App/Controllers/Api/PurchaseOrderApiController.swift

@@ -1,10 +1,12 @@
+import Dependencies
 import Fluent
 import Vapor
 
 // TODO: Add update route.
 
 struct PurchaseOrderApiController: RouteCollection {
-  private let purchaseOrders = PurchaseOrderDB()
+
+  @Dependency(\.purchaseOrders) var purchaseOrders
 
   func boot(routes: any RoutesBuilder) throws {
     let protected = routes.apiProtected(route: "purchase-orders")
@@ -18,7 +20,7 @@ struct PurchaseOrderApiController: RouteCollection {
 
   @Sendable
   func index(req: Request) async throws -> [PurchaseOrder.DTO] {
-    try await purchaseOrders.fetchAll(on: req.db)
+    try await purchaseOrders.fetchAll()
   }
 
   @Sendable
@@ -27,15 +29,14 @@ struct PurchaseOrderApiController: RouteCollection {
     let model = try req.content.decode(PurchaseOrder.Create.self)
     return try await purchaseOrders.create(
       model,
-      createdById: req.auth.require(User.self).requireID(),
-      on: req.db
+      req.auth.require(User.self).requireID()
     )
   }
 
   @Sendable
   func get(req: Request) async throws -> PurchaseOrder.DTO {
     guard let id = req.parameters.get("id", as: PurchaseOrder.IDValue.self),
-          let purchaseOrder = try await purchaseOrders.get(id: id, on: req.db)
+          let purchaseOrder = try await purchaseOrders.get(id)
     else {
       throw Abort(.notFound)
     }
@@ -47,7 +48,7 @@ struct PurchaseOrderApiController: RouteCollection {
     guard let id = req.parameters.get("id", as: PurchaseOrder.IDValue.self) else {
       throw Abort(.badRequest, reason: "Purchase order id not provided.")
     }
-    try await purchaseOrders.delete(id: id, on: req.db)
+    try await purchaseOrders.delete(id)
     return .ok
   }
 

Sources/App/Controllers/Api/UserApiController.swift

@@ -1,9 +1,11 @@
+import Dependencies
 import Fluent
 import Vapor
 
 // TODO: Add update and get by id.
 struct UserApiController: RouteCollection {
-  let users = UserDB()
+
+  @Dependency(\.users) var users
 
   func boot(routes: any RoutesBuilder) throws {
     let unProtected = routes.apiUnprotected(route: "users")
@@ -19,7 +21,7 @@ struct UserApiController: RouteCollection {
 
   @Sendable
   func index(req: Request) async throws -> [User.DTO] {
-    try await users.fetchAll(on: req.db)
+    try await users.fetchAll()
   }
 
   @Sendable
@@ -33,13 +35,13 @@ struct UserApiController: RouteCollection {
     }
     try User.Create.validate(content: req)
     let model = try req.content.decode(User.Create.self)
-    return try await users.create(model, on: req.db)
+    return try await users.create(model)
   }
 
   @Sendable
   func login(req: Request) async throws -> UserToken {
     let user = try req.auth.require(User.self)
-    return try await users.login(user: user, on: req.db)
+    return try await users.login(user)
   }
 
   // @Sendable
@@ -53,7 +55,7 @@ struct UserApiController: RouteCollection {
     guard let id = req.parameters.get("id", as: User.IDValue.self) else {
       throw Abort(.badRequest, reason: "User id not provided")
     }
-    try await users.delete(id: id, on: req.db)
+    try await users.delete(id)
     return .ok
   }
 }

Sources/App/Controllers/Api/VendorApiController.swift

@@ -1,8 +1,10 @@
+import Dependencies
 import Fluent
 import Vapor
 
 struct VendorApiController: RouteCollection {
-  private let vendors = VendorDB()
+
+  @Dependency(\.vendors) var vendors
 
   func boot(routes: any RoutesBuilder) throws {
     let protected = routes.apiProtected(route: "vendors")
@@ -17,14 +19,14 @@ struct VendorApiController: RouteCollection {
   @Sendable
   func index(req: Request) async throws -> [Vendor.DTO] {
     let params = try req.query.decode(VendorsIndexQuery.self)
-    return try await vendors.fetchAll(withBranches: params.branches, on: req.db)
+    return try await vendors.fetchAll(params.fetchRequest)
   }
 
   @Sendable
   func create(req: Request) async throws -> Vendor.DTO {
     try Vendor.Create.validate(content: req)
     let model = try req.content.decode(Vendor.Create.self)
-    return try await vendors.create(model, on: req.db)
+    return try await vendors.create(model)
   }
 
   @Sendable
@@ -34,7 +36,7 @@ struct VendorApiController: RouteCollection {
     }
     try Vendor.Update.validate(content: req)
     let updates = try req.content.decode(Vendor.Update.self)
-    return try await vendors.update(id: id, with: updates, on: req.db)
+    return try await vendors.update(id, updates)
   }
 
   @Sendable
@@ -42,11 +44,16 @@ struct VendorApiController: RouteCollection {
     guard let id = req.parameters.get("id", as: Vendor.IDValue.self) else {
       throw Abort(.badRequest, reason: "Vendor id not provided.")
     }
-    try await vendors.delete(id: id, on: req.db)
+    try await vendors.delete(id)
     return .ok
   }
 }
 
 struct VendorsIndexQuery: Content {
   let branches: Bool?
+
+  var fetchRequest: VendorDB.FetchRequest {
+    if branches == true { return .withBranches }
+    return .default
+  }
 }

Sources/App/Controllers/Api/VendorBranchApiController.swift

@@ -1,8 +1,10 @@
+import Dependencies
 import Fluent
 import Vapor
 
 struct VendorBranchApiController: RouteCollection {
-  private let vendorBranches = VendorBranchDB()
+
+  @Dependency(\.vendorBranches) var vendorBranches
 
   func boot(routes: any RoutesBuilder) throws {
     let prefix = routes.apiProtected(route: "vendors")
@@ -21,7 +23,7 @@ struct VendorBranchApiController: RouteCollection {
 
   @Sendable
   func index(req: Request) async throws -> [VendorBranch.DTO] {
-    try await vendorBranches.fetchAll(on: req.db)
+    try await vendorBranches.fetchAll()
   }
 
   @Sendable
@@ -29,7 +31,7 @@ struct VendorBranchApiController: RouteCollection {
     guard let id = req.parameters.get("vendorID", as: Vendor.IDValue.self) else {
       throw Abort(.badRequest, reason: "Vendor id not provided.")
     }
-    return try await vendorBranches.fetch(for: id, on: req.db)
+    return try await vendorBranches.fetchForVendor(id)
   }
 
   @Sendable
@@ -39,7 +41,7 @@ struct VendorBranchApiController: RouteCollection {
     }
     try VendorBranch.Create.validate(content: req)
     let model = try req.content.decode(VendorBranch.Create.self)
-    return try await vendorBranches.create(model, for: id, on: req.db)
+    return try await vendorBranches.create(model, id)
   }
 
   @Sendable
@@ -49,7 +51,7 @@ struct VendorBranchApiController: RouteCollection {
     }
     try VendorBranch.Update.validate(content: req)
     let updates = try req.content.decode(VendorBranch.Update.self)
-    return try await vendorBranches.update(id: id, with: updates, on: req.db)
+    return try await vendorBranches.update(id, updates)
   }
 
   @Sendable
@@ -57,7 +59,7 @@ struct VendorBranchApiController: RouteCollection {
     guard let id = req.parameters.get("id", as: VendorBranch.IDValue.self) else {
       throw Abort(.badRequest, reason: "Vendor branch id not provided.")
     }
-    try await vendorBranches.delete(id: id, on: req.db)
+    try await vendorBranches.delete(id)
     return .ok
   }
 

Sources/App/Controllers/DB/PurchaseOrderDB.swift

@@ -1,56 +1,72 @@
+import Dependencies
+import DependenciesMacros
 import Fluent
 import Vapor
 
-// An intermediate between our api and view controllers that interacts with the
-// database.
-struct PurchaseOrderDB {
+extension DependencyValues {
+  // An intermediate between our api and view controllers that interacts with the
+  // database.
+  var purchaseOrders: PurchaseOrdersDB {
+    get { self[PurchaseOrdersDB.self] }
+    set { self[PurchaseOrdersDB.self] = newValue }
+  }
+}
 
-  func create(
-    _ model: PurchaseOrder.Create,
-    createdById: User.IDValue,
-    on db: any Database
-  ) async throws -> PurchaseOrder.DTO {
-    guard let employee = try await Employee.find(model.createdForID, on: db) else {
-      throw Abort(.notFound, reason: "Employee not found.")
-    }
+@DependencyClient
+struct PurchaseOrdersDB: Sendable {
+  var create: @Sendable (PurchaseOrder.Create, User.IDValue) async throws -> PurchaseOrder.DTO
+  var fetchAll: @Sendable () async throws -> [PurchaseOrder.DTO]
+  var fetchPage: @Sendable (PageRequest) async throws -> Page<PurchaseOrder.DTO>
+  var get: @Sendable (PurchaseOrder.IDValue) async throws -> PurchaseOrder.DTO?
+  // var update: @Sendable (PurchaseOrder.IDValue, PurchaseOrder.Update) async throws -> PurchaseOrder.DTO
+  var delete: @Sendable (PurchaseOrder.IDValue) async throws -> Void
+}
 
-    guard employee.active else {
-      throw Abort(.badRequest, reason: "Employee is not active, unable to generate a PO for in-active employees")
-    }
+extension PurchaseOrdersDB: TestDependencyKey {
+  static let testValue: PurchaseOrdersDB = Self()
 
-    let purchaseOrder = model.toModel(createdByID: createdById)
-    try await purchaseOrder.save(on: db)
-    guard let loaded = try await get(id: purchaseOrder.requireID(), on: db) else {
-      return purchaseOrder.toDTO()
-    }
-    return loaded
+  static func live(database db: any Database) -> Self {
+    .init(
+      create: { model, createdById in
+        guard let employee = try await Employee.find(model.createdForID, on: db) else {
+          throw Abort(.notFound, reason: "Employee not found.")
+        }
+
+        guard employee.active else {
+          throw Abort(.badRequest, reason: "Employee is not active, unable to generate a PO for in-active employees")
+        }
+
+        let purchaseOrder = model.toModel(createdByID: createdById)
+        try await purchaseOrder.save(on: db)
+        guard let loaded = try await PurchaseOrder.get(purchaseOrder.requireID(), on: db) else {
+          return purchaseOrder.toDTO()
+        }
+        return loaded
+
+      },
+      fetchAll: {
+        try await PurchaseOrder.allQuery(on: db)
+          .sort(\.$id, .descending)
+          .all().map { $0.toDTO() }
+      },
+      fetchPage: { request in
+        try await PurchaseOrder.allQuery(on: db)
+          .sort(\.$id, .descending)
+          .paginate(request)
+          .map { $0.toDTO() }
+      },
+      get: { id in
+        try await PurchaseOrder.get(id, on: db)
+      },
+      delete: { id in
+        guard let purchaseOrder = try await PurchaseOrder.find(id, on: db) else {
+          throw Abort(.notFound)
+        }
+        try await purchaseOrder.delete(on: db)
+      }
+    )
   }
 
-  func fetchAll(on db: any Database) async throws -> [PurchaseOrder.DTO] {
-    try await PurchaseOrder.allQuery(on: db)
-      .sort(\.$id, .descending)
-      .all().map { $0.toDTO() }
-  }
-
-  func fetchPage(_ page: Int, limit: Int, on db: any Database) async throws -> Page<PurchaseOrder.DTO> {
-    try await PurchaseOrder.allQuery(on: db)
-      .sort(\.$id, .descending)
-      .paginate(PageRequest(page: page, per: limit))
-      .map { $0.toDTO() }
-  }
-
-  func get(id: PurchaseOrder.IDValue, on db: any Database) async throws -> PurchaseOrder.DTO? {
-    try await PurchaseOrder.allQuery(on: db)
-      .filter(\.$id == id)
-      .first()?.toDTO()
-  }
-
-  func delete(id: PurchaseOrder.IDValue, on db: any Database) async throws {
-    guard let purchaseOrder = try await PurchaseOrder.find(id, on: db) else {
-      throw Abort(.notFound)
-    }
-    try await purchaseOrder.delete(on: db)
-  }
 }
 
 private extension PurchaseOrder {
@@ -62,4 +78,10 @@ private extension PurchaseOrder {
         branch.with(\.$vendor)
       }
   }
+
+  static func get(_ id: PurchaseOrder.IDValue, on db: any Database) async throws -> PurchaseOrder.DTO? {
+    try await PurchaseOrder.allQuery(on: db)
+      .filter(\.$id == id)
+      .first()?.toDTO()
+  }
 }

Sources/App/Controllers/DB/UserDB.swift

@@ -1,36 +1,56 @@
+import Dependencies
+import DependenciesMacros
 import Fluent
 import Vapor
 
-struct UserDB {
-
-  func create(_ model: User.Create, on db: any Database) async throws -> User.DTO {
-    guard model.password == model.confirmPassword else {
-      throw Abort(.badRequest, reason: "Passwords did not match.")
-    }
-    let user = try User(
-      username: model.username,
-      email: model.email,
-      passwordHash: Bcrypt.hash(model.password)
-    )
-    try await user.save(on: db)
-    return user.toDTO()
+extension DependencyValues {
+  var users: UserDB {
+    get { self[UserDB.self] }
+    set { self[UserDB.self] = newValue }
+  }
+}
+
+@DependencyClient
+struct UserDB: Sendable {
+  var create: @Sendable (User.Create) async throws -> User.DTO
+  var delete: @Sendable (User.IDValue) async throws -> Void
+  var fetchAll: @Sendable () async throws -> [User.DTO]
+  var login: @Sendable (User) async throws -> UserToken
+}
+
+extension UserDB: TestDependencyKey {
+  static let testValue: UserDB = Self()
+
+  static func live(database db: any Database) -> Self {
+    self.init(
+      create: { model in
+        guard model.password == model.confirmPassword else {
+          throw Abort(.badRequest, reason: "Passwords did not match.")
+        }
+        let user = try User(
+          username: model.username,
+          email: model.email,
+          passwordHash: Bcrypt.hash(model.password)
+        )
+        try await user.save(on: db)
+        return user.toDTO()
+
+      },
+      delete: { id in
+        guard let user = try await User.find(id, on: db) else {
+          throw Abort(.notFound)
+        }
+        try await user.delete(on: db)
+
+      },
+      fetchAll: {
+        try await User.query(on: db).all().map { $0.toDTO() }
+      },
+      login: { user in
+        let token = try user.generateToken()
+        try await token.save(on: db)
+        return token
+      }
+    )
   }
-
-  func login(user: User, on db: any Database) async throws -> UserToken {
-    let token = try user.generateToken()
-    try await token.save(on: db)
-    return token
-  }
-
-  func fetchAll(on db: any Database) async throws -> [User.DTO] {
-    try await User.query(on: db).all().map { $0.toDTO() }
-  }
-
-  func delete(id: User.IDValue, on db: any Database) async throws {
-    guard let user = try await User.find(id, on: db) else {
-      throw Abort(.notFound)
-    }
-    try await user.delete(on: db)
-  }
-
 }

Sources/App/Controllers/DB/VendorBranchDB.swift

@@ -1,62 +1,80 @@
+import Dependencies
+import DependenciesMacros
 import Fluent
 import Vapor
 
-struct VendorBranchDB {
-
-  func create(
-    _ model: VendorBranch.Create,
-    for vendorID: Vendor.IDValue,
-    on db: any Database
-  ) async throws -> VendorBranch.DTO {
-    let branch = model.toModel()
-    guard let vendor = try await Vendor.find(vendorID, on: db) else {
-      throw Abort(.badRequest, reason: "Vendor does not exist.")
-    }
-    try await vendor.$branches.create(branch, on: db)
-    return branch.toDTO()
-  }
-
-  func fetchAll(withVendor: Bool? = nil, on db: any Database) async throws -> [VendorBranch.DTO] {
-    var query = VendorBranch.query(on: db)
-    if withVendor == true {
-      query = query.with(\.$vendor)
-    }
-    return try await query.all().map { $0.toDTO() }
-  }
-
-  func fetch(for vendorID: Vendor.IDValue, on db: any Database) async throws -> [VendorBranch.DTO] {
-    guard let vendor = try await Vendor.query(on: db)
-      .filter(\.$id == vendorID)
-      .with(\.$branches)
-      .first()
-    else {
-      throw Abort(.notFound)
-    }
-
-    return vendor.branches.map { $0.toDTO() }
-  }
-
-  func get(id: VendorBranch.IDValue, on db: any Database) async throws -> VendorBranch.DTO? {
-    try await VendorBranch.find(id, on: db).map { $0.toDTO() }
-  }
-
-  func update(
-    id: VendorBranch.IDValue,
-    with updates: VendorBranch.Update,
-    on db: any Database
-  ) async throws -> VendorBranch.DTO {
-    guard let branch = try await VendorBranch.find(id, on: db) else {
-      throw Abort(.notFound)
-    }
-    branch.applyUpdates(updates)
-    try await branch.save(on: db)
-    return branch.toDTO()
-  }
-
-  func delete(id: VendorBranch.IDValue, on db: any Database) async throws {
-    guard let branch = try await VendorBranch.find(id, on: db) else {
-      throw Abort(.notFound)
-    }
-    try await branch.delete(on: db)
+public extension DependencyValues {
+  var vendorBranches: VendorBranchDB {
+    get { self[VendorBranchDB.self] }
+    set { self[VendorBranchDB.self] = newValue }
+  }
+}
+
+@DependencyClient
+public struct VendorBranchDB: Sendable {
+  var create: @Sendable (VendorBranch.Create, Vendor.IDValue) async throws -> VendorBranch.DTO
+  var delete: @Sendable (VendorBranch.IDValue) async throws -> Void
+  var fetchAll: @Sendable (Bool) async throws -> [VendorBranch.DTO]
+  var fetchForVendor: @Sendable (Vendor.IDValue) async throws -> [VendorBranch.DTO]
+  var get: @Sendable (VendorBranch.IDValue) async throws -> VendorBranch.DTO?
+  var update: @Sendable (VendorBranch.IDValue, VendorBranch.Update) async throws -> VendorBranch.DTO
+
+  func fetchAll() async throws -> [VendorBranch.DTO] {
+    try await fetchAll(false)
+  }
+}
+
+extension VendorBranchDB: TestDependencyKey {
+  public static let testValue: VendorBranchDB = Self()
+
+  static func live(database db: any Database) -> Self {
+    .init(
+      create: { model, vendorID in
+        let branch = model.toModel()
+        guard let vendor = try await Vendor.find(vendorID, on: db) else {
+          throw Abort(.badRequest, reason: "Vendor does not exist.")
+        }
+        try await vendor.$branches.create(branch, on: db)
+        return branch.toDTO()
+      },
+      delete: { id in
+        guard let branch = try await VendorBranch.find(id, on: db) else {
+          throw Abort(.notFound)
+        }
+        try await branch.delete(on: db)
+      },
+      fetchAll: { withVendor in
+        var query = VendorBranch.query(on: db)
+        if withVendor == true {
+          query = query.with(\.$vendor)
+        }
+        return try await query.all().map { $0.toDTO() }
+
+      },
+      fetchForVendor: { vendorID in
+        guard let vendor = try await Vendor.query(on: db)
+          .filter(\.$id == vendorID)
+          .with(\.$branches)
+          .first()
+        else {
+          throw Abort(.notFound)
+        }
+
+        return vendor.branches.map { $0.toDTO() }
+
+      },
+      get: { id in
+
+        try await VendorBranch.find(id, on: db).map { $0.toDTO() }
+      },
+      update: { id, updates in
+        guard let branch = try await VendorBranch.find(id, on: db) else {
+          throw Abort(.notFound)
+        }
+        branch.applyUpdates(updates)
+        try await branch.save(on: db)
+        return branch.toDTO()
+      }
+    )
   }
 }

Sources/App/Controllers/DB/VendorDB.swift

@@ -1,47 +1,85 @@
+import Dependencies
+import DependenciesMacros
 import Fluent
 import Vapor
 
-struct VendorDB {
-  func create(_ model: Vendor.Create, on db: any Database) async throws -> Vendor.DTO {
-    let model = model.toModel()
-    try await model.save(on: db)
-    return model.toDTO()
+public extension DependencyValues {
+  var vendors: VendorDB {
+    get { self[VendorDB.self] }
+    set { self[VendorDB.self] = newValue }
+  }
+}
+
+@DependencyClient
+public struct VendorDB: Sendable {
+  var create: @Sendable (Vendor.Create) async throws -> Vendor.DTO
+  var delete: @Sendable (Vendor.IDValue) async throws -> Void
+  var fetchAll: @Sendable (FetchRequest) async throws -> [Vendor.DTO]
+  var get: @Sendable (Vendor.IDValue, GetRequest) async throws -> Vendor.DTO?
+  var update: @Sendable (Vendor.IDValue, Vendor.Update) async throws -> Vendor.DTO
+
+  enum FetchRequest {
+    case `default`
+    case withBranches
+  }
+
+  enum GetRequest {
+    case `default`
+    case withBranches
+  }
+
+  func fetchAll() async throws -> [Vendor.DTO] {
+    try await fetchAll(.default)
+  }
+
+  func get(_ id: Vendor.IDValue) async throws -> Vendor.DTO? {
+    try await get(id, .default)
+  }
+}
+
+extension VendorDB: TestDependencyKey {
+  public static let testValue: VendorDB = Self()
+
+  static func live(database db: any Database) -> Self {
+    .init(
+      create: { model in
+        let model = model.toModel()
+        try await model.save(on: db)
+        return model.toDTO()
+
+      },
+      delete: { id in
+        guard let vendor = try await Vendor.find(id, on: db) else {
+          throw Abort(.notFound)
+        }
+        try await vendor.delete(on: db)
+
+      },
+      fetchAll: { request in
+        var query = Vendor.query(on: db).sort(\.$name, .ascending)
+        let withBranches = request == .withBranches
+        if withBranches {
+          query = query.with(\.$branches)
+        }
+        return try await query.all().map { $0.toDTO(includeBranches: withBranches) }
+
+      },
+      get: { id, request in
+        var query = Vendor.query(on: db).filter(\.$id == id)
+        let withBranches = request == .withBranches
+        if withBranches {
+          query = query.with(\.$branches)
+        }
+        return try await query.first().map { $0.toDTO(includeBranches: withBranches) }
+
+      },
+      update: { id, updates in
+        guard let vendor = try await Vendor.find(id, on: db) else {
+          throw Abort(.notFound)
+        }
+        vendor.applyUpdates(updates)
+        return vendor.toDTO()
+      }
+    )
   }
-
-  func fetchAll(withBranches: Bool? = nil, on db: any Database) async throws -> [Vendor.DTO] {
-    var query = Vendor.query(on: db).sort(\.$name, .ascending)
-    if withBranches == true {
-      query = query.with(\.$branches)
-    }
-    return try await query.all().map { $0.toDTO(includeBranches: withBranches) }
-  }
-
-  func get(id: Vendor.IDValue, withBranches: Bool? = nil, on db: any Database) async throws -> Vendor.DTO? {
-    var query = Vendor.query(on: db).filter(\.$id == id)
-
-    if withBranches == true {
-      query = query.with(\.$branches)
-    }
-    return try await query.first().map { $0.toDTO(includeBranches: withBranches) }
-  }
-
-  func update(
-    id: Vendor.IDValue,
-    with updates: Vendor.Update,
-    on db: any Database
-  ) async throws -> Vendor.DTO {
-    guard let vendor = try await Vendor.find(id, on: db) else {
-      throw Abort(.notFound)
-    }
-    vendor.applyUpdates(updates)
-    return vendor.toDTO()
-  }
-
-  func delete(id: Vendor.IDValue, on db: any Database) async throws {
-    guard let vendor = try await Vendor.find(id, on: db) else {
-      throw Abort(.notFound)
-    }
-    try await vendor.delete(on: db)
-  }
-
 }

Sources/App/Controllers/View/EmployeeViewController.swift

@@ -23,7 +23,7 @@ struct EmployeeViewController: RouteCollection {
 
   @Sendable
   func index(req: Request) async throws -> View {
-    return try await req.view.render("employees/index", EmployeesCTX())
+    return try await req.view.render("employees/index", EmployeesCTX(db: employees))
   }
 
   @Sendable
@@ -31,7 +31,7 @@ struct EmployeeViewController: RouteCollection {
     try Employee.Create.validate(content: req)
     let model = try req.content.decode(Employee.Create.self)
     _ = try await employees.create(model)
-    return try await req.view.render("employees/index", EmployeesCTX(oob: true))
+    return try await req.view.render("employees/index", EmployeesCTX(oob: true, db: employees))
   }
 
   @Sendable
@@ -63,7 +63,7 @@ struct EmployeeViewController: RouteCollection {
   @Sendable
   func update(req: Request) async throws -> View {
     _ = try await api.update(req: req)
-    return try await req.view.render("employees/index", EmployeesCTX(oob: true))
+    return try await req.view.render("employees/index", EmployeesCTX(oob: true, db: employees))
   }
 
   @Sendable
@@ -80,11 +80,11 @@ private struct EmployeesCTX: Content {
 
   init(
     oob: Bool = false,
-    employee: Employee? = nil
+    employee: Employee? = nil,
+    db: EmployeeDB
   ) async throws {
-    @Dependency(\.employees) var employees
     self.oob = oob
-    self.employees = try await employees.fetchAll()
+    self.employees = try await db.fetchAll()
     self.form = .init(employee: employee.map { $0.toDTO() })
   }
 }

Sources/App/Controllers/View/PurchaseOrderViewController.swift

@@ -1,11 +1,13 @@
+import Dependencies
 import Fluent
 import Vapor
 
 struct PurchaseOrderViewController: RouteCollection {
+  @Dependency(\.purchaseOrders) var purchaseOrders
+
   private let employeesApi = EmployeeApiController()
   private let branches = VendorBranchDB()
   private let api = ApiController()
-  private let api2 = PurchaseOrderDB()
 
   func boot(routes: any RoutesBuilder) throws {
     let pos = routes.protected.grouped("purchase-orders")
@@ -20,7 +22,9 @@ struct PurchaseOrderViewController: RouteCollection {
   @Sendable
   func index(req: Request) async throws -> View {
     let params = try? req.query.decode(PurchaseOrderIndex.self)
-    let purchaseOrdersPage = try await api2.fetchPage(params?.page ?? 1, limit: params?.limit ?? 50, on: req.db)
+    let purchaseOrdersPage = try await purchaseOrders.fetchPage(
+      .init(page: params?.page ?? 1, per: params?.limit ?? 50)
+    )
     let branches = try await self.branches.getBranches(req: req)
     let employees = try await employeesApi.index(req: req)
     req.logger.debug("Branches: \(branches)")
@@ -38,7 +42,7 @@ struct PurchaseOrderViewController: RouteCollection {
     guard let id = req.parameters.get("id", as: PurchaseOrder.IDValue.self) else {
       throw Abort(.badRequest, reason: "Id not supplied.")
     }
-    let purchaseOrder = try await api2.get(id: id, on: req.db)
+    let purchaseOrder = try await purchaseOrders.get(id)
     return try await req.view.render("purchaseOrders/detail", ["purchaseOrder": purchaseOrder])
   }
 
@@ -47,7 +51,7 @@ struct PurchaseOrderViewController: RouteCollection {
     try PurchaseOrder.FormCreate.validate(content: req)
     let createdById = try req.auth.require(User.self).requireID()
     let create = try req.content.decode(PurchaseOrder.FormCreate.self).toCreate()
-    let purchaseOrder = try await api2.create(create, createdById: createdById, on: req.db)
+    let purchaseOrder = try await purchaseOrders.create(create, createdById)
     return try await req.view.render("purchaseOrders/table-row", purchaseOrder)
   }
 }

Sources/App/configure.swift

@@ -34,6 +34,10 @@ public func configure(_ app: Application) async throws {
 
   try withDependencies {
     $0.employees = .live(database: app.db(.sqlite))
+    $0.purchaseOrders = .live(database: app.db(.sqlite))
+    $0.users = .live(database: app.db(.sqlite))
+    $0.vendorBranches = .live(database: app.db(.sqlite))
+    $0.vendors = .live(database: app.db(.sqlite))
   } operation: {
     // register routes
     try routes(app)