在领域中存储值

Question

我正在创建一个健身日记应用程序，我将锻炼值存储在这个领域中：

我正在使用日期对锻炼进行排序。我想完成一些新的事情，我可以在同一个练习中使用不同的重量和重复次数。它基于这样的设计：

我认为数据库应该是这样的，但不确定：

23.11.2019

Barbell Bench Press

Set 1

KG: 90

Reps: 5

Set 2

KG: 87,5

Reps: 6

Triceps Pushdown

Set 1

KG: 110

Reps: 6

Set 2

KG: 110

Reps: 6

Set 3

KG: 112,5

Reps: 5

关于如何执行此操作的任何提示？

编辑；这是我当前的 Workout.swift class（不确定如何编辑它以获得我想要的）：

import Foundation
import RealmSwift

class Workout: Object {

    @objc dynamic var date: Date?
    @objc dynamic var name: String?
    @objc dynamic var exercise: String?
    @objc dynamic var sets = 0
    @objc dynamic var reps = 0
    @objc dynamic var kg: Double = 0.0
    @objc dynamic var notes: String?

}

Answer 1

以这种方式创建锻炼

let realm = try! Realm()
var wo = WorkOut()//Do initialization for properties such as name,reps,...
try! realm.write{
   realm.add(wo)
}

一条 WorkOut 记录已写入您的数据库

Answer 2

您将需要三个对象（锻炼、锻炼和设置）并具有 2 个多对多关系，如文档中所述：https://realm.io/docs/swift/latest/#many-to-many

class Workout: Object {

    @objc dynamic var date: Date?
    // List of exercises (to-many relationship)
    var exercises = List<Exercise>()

}

.

class Exercise: Object {

    @objc dynamic var name: String?
    // List of sets (to-many relationship)
    var sets = List<Set>()
    var parentWorkout = LinkingObjects(fromType: Workout.self, property: "exercises")
}

.

class Set: Object {

    @objc dynamic var reps: Int = 0
    @objc dynamic var kg: Double = 0.0
    @objc dynamic var notes: String?
    // Define an inverse relationship to be able to access your parent workout for a particular set (if needed)
    var parentExercise = LinkingObjects(fromType: Exercise.self, property: "sets")

    convenience init(numReps: Int, weight: Double, aNote: String) {
       self.init()
       self.reps = numReps
       self.kg = weight
       self.notes = aNote
    }

}

编辑

添加示例代码

let aSet0 = Set(numReps: 10, weight: 5.0, aNote: "light workout")
let aSet1 = Set(numReps: 10, weight: 20.0, aNote: "medium workout")
let aSet2 = Set(numReps: 10, weight: 30.0, aNote: "heavy workout")

let aWorkout = Workout()
aWorkout.name = example
aWorkout.sets.append(objectsIn: [aSet0, aSet1, aSet2] )

显示 "Bench Press" 锻炼组的另一个示例代码：

// Find the Workout instance "Bench Press"
let benchPressWorkout = realm.objects(Workout.self).filter("name = 'Bench Press'")
// Access the sets for that instance
let sets = benchPressWorkout.sets
// Access set[0]
let set0 = sets[0]
// Access reps and kg for set 0
let reps0 = set0.reps
let kg0 = set0.kg
// and so on ...

在领域中存储值

Store values in realm

xcode

realm

ios

swift