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Add the following code to the Device View Controller.m: - (BOOL)table View:(UITable View *)table View can Edit Row At Index Path:(NSIndex Path *)index Path - (void)table View:(UITable View *)table View commit Editing Style:(UITable View Cell Editing Style)editing Style for Row At Index Path:(NSIndex Path *)index Path We’ll not go into the details about how to remove a row from table view as we’ve already covered in our earlier tutorial.

Let’s focus on the code of commit Editing Style method for deleting the managed object from database.

You then set up your fetch to find the result you are looking for.

In the example, my result found Alerts by their creation date and alert type. Stack Overflow Example & Apple Documentation I then var context: NSManaged Object Context = app Del.managed Object Context!

Learn about the new best practices in Core Data, such as how to use concurrency and persistent history, and discover how to test for, and resolve, common problems using familiar technologies.

In this article, we will be talking about how to insert update and delete records using Core Data Framework. // import UIKit import Core Data class View Controller: UIView Controller, UITable View Delegate, UITable View Data Source // // View Controller.swift // User Details // // Created by Chandra Rao on 06/12/17.

Previously, we gave you a brief introduction of Core Data and created a simple app to store all your device information.

However, we only showed you how to insert records into data store through Core Data API and left out the update & delete operations.

Following the removal of the object from database, we also remove the record from the table view.In the later tutorials, we’ll talk about object relationship and show you how to optimize the app using NSFetched Results Controller.for the Entity you are looking to update, in my example that would be "Alert".Like saving data, we first grab the manage object context.The context provides a method called “delete Object” that allows you to delete the specific object from database.

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