fossabot/records

In just a few minutes, setup a fully functioning CoreData implementation that embraces the static, type-safe nature of Swift.

A very light-weight CoreData wrapper that dynamically re-writes itself, as you develop your project.

Fetch

do {
  let performances: [Performance] = try Performance.Query(group: .solo).all(in: context)
  performances.forEach { (performance) in
    context.delete(performance)
  }
  try context.save()
} catch {
  // Errors from the CoreData layer such as 'model not found' etc
}

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Create

struct Information {
    let name: String
    let phone: String
    let email: String
    let type: String

    // implement protocol named `Recordable` here ~ 2 minutes
}

let info = Information(name: "DanceSchool", phone: "01234567891", email: "[email protected]", type: "School")

do {
    let record: Party = try info.record(in: context)
} catch {
    // Errors from the CoreData layer such as 'model not found' etc
}

When using the protocol named Recordable we ensure the following is performed when we call record(in: ).

1. If a record does not exist that matches this data, it is created.
2. If a record does exist that matches this data, it is retrieved.

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Observe

The following tableView is connected to an NSFetchedResultsController and UI changes are delegated to a default protocol implementation.

class PerformancesViewController: UIViewController {
  
  private let fetchedResultsController: PerformancesFetchedResultsController!
  
  @IBOutlet private weak var tableView: PerformancesTableView! {
    didSet {
      fetchedResultsController.delegate = tableView
      fetchedResultsController.dataSource = tableView
      tableView.dataSource = fetchedResultsController
      tableView.delegate = fetchedResultsController
    }
  }
  
  override func viewDidLoad() {
    super.viewDidLoad()
    try! fetchedResultsController.reload()
  } 
}

More details

Installation

1. Run the Carthage command carthage update.
2. Embed Binary.
3. Install Sourcery.
4. Adjust NSManagedObject subclasses ~2 minute job.

See Guide

Demo

1. Run the Carthage command carthage bootstrap.
2. Install Sourcery.
3. Run the Xcode scheme named Performances.

Footnotes

See footnotes for some handy tips.