CODEWITHSUNDEEP
iosswiftxcoderealm
Camile
Camile

Reputation: 175

Store values in realm

I am creating a fitness journal app, and I store workout values in realm this this: iest

I am sorting the workouts using date. I want to accomplish something new, where I can have different weight and reps each set on the same exercise. It is based on this design: enter image description here

I think the database has to bee something like this, but not sure:

  • 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

Any tips on how I can do this?

Edit; This is my current Workout.swift class (not sure how to edit it to get what I want):

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?

}

Upvotes: 0

Views: 294

Answers (2)

rs7
rs7

Reputation: 1630

You would need to have three objects (Workout, Exercise, and Set) and have 2 many-to-many relationship as outlined in the documentation: 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
    }

}

EDIT

adding example code

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] )

Another example code to display the sets for the "Bench Press" workout:

// 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 ...

Upvotes: 2

user1200543
user1200543

Reputation:

Create a WorkOut this way 

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

One record of WorkOut is written to your database

Upvotes: 0

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