gistlib - how to create a draft manager in swift

To create a Draft Manager in Swift, we can use CoreData to store the drafts and a UITableView to display them.

First, let's create a CoreData model with an entity "Draft" that has attributes "title" and "content". Then, we can generate a managed object subclass for the "Draft" entity.


main.swift
import CoreData

class Draft: NSManagedObject {
    @NSManaged var title: String?
    @NSManaged var content: String?
}
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Next, we need to add functionalities to the Draft Manager. We can create a class called DraftManager that manages the Core Data stack and provides methods to interact with the "Draft" entity.


main.swift
import UIKit
import CoreData

class DraftManager {
    // Core Data stack
    lazy var persistentContainer: NSPersistentContainer = {
        let container = NSPersistentContainer(name: "DraftModel")
        container.loadPersistentStores(completionHandler: { (storeDescription, error) in
            if let error = error as NSError? {
                fatalError("Unresolved error \(error), \(error.userInfo)")
            }
        })
        return container
    }()

    // Create a new draft
    func createDraft(withTitle title: String?, content: String?) -> Draft? {
        let managedContext = persistentContainer.viewContext
        if let draft = NSEntityDescription.insertNewObject(forEntityName: "Draft", into: managedContext) as? Draft {
            draft.title = title
            draft.content = content

            do {
                try managedContext.save()
                return draft
            } catch let error as NSError {
                print("Could not save. \(error), \(error.userInfo)")
            }
        }
        return nil
    }

    // Get all drafts
    func getDrafts() -> [Draft] {
        let managedContext = persistentContainer.viewContext
        let fetchRequest = NSFetchRequest<Draft>(entityName: "Draft")
        fetchRequest.sortDescriptors = [NSSortDescriptor(key: "title", ascending: true)]
        do {
            let drafts = try managedContext.fetch(fetchRequest)
            return drafts
        } catch let error as NSError {
            print("Could not fetch. \(error), \(error.userInfo)")
        }
        return []
    }
}
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Now, we can use a UITableView to display a list of drafts. We need to implement the UITableViewDataSource protocol by using the "getDrafts()" method from our DraftManager.


main.swift
class DraftListViewController: UIViewController, UITableViewDataSource {
    @IBOutlet weak var tableView: UITableView!
    var drafts: [Draft] = []

    override func viewDidLoad() {
        super.viewDidLoad()
        drafts = DraftManager().getDrafts()
        tableView.reloadData()
    }

    // UITableViewDataSource methods
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return drafts.count
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "DraftCell", for: indexPath) as! DraftTableViewCell
        cell.titleLabel.text = drafts[indexPath.row].title
        cell.contentLabel.text = drafts[indexPath.row].content
        return cell
    }
}
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Finally, we can create a separate view controller to display a form for creating a new draft. To create a draft, we can call the "createDraft(withTitle:content:)" method from our DraftManager.

This is just a simple implementation of a Draft Manager using CoreData and UITableView. You can further customize it to fit your needs.

how to create a draft manager in swift

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