CODEWITHSUNDEEP
iosswiftsqlitecore-data
Balaji Kondalrayal
Balaji Kondalrayal

Reputation: 1751

Coredata always updating the row instead of inserting a new row in swift

I want to insert the data in coredata in swift. Iam using the following code to insert the bulk data into database table at once. But it always inserts single row and keep on updating the row in table.

Can anyone please help me to resolve this.

func insertIntoTestClass(testClassArray : [DBTestClass])
    {
        let managedObject = (UIApplication.sharedApplication().delegate as! AppDelegate).managedObjectContext

    let table1 = NSEntityDescription.insertNewObjectForEntityForName("testClass", inManagedObjectContext: managedObject) as! testClass

    for i in 0..<checklistConfiguration.count
    {
        let insertArray = checklistConfiguration[i]

        table1.test1 = insertArray.test1!
        table1.test2 = insertArray.test2!
        table1.test3 = insertArray.test3!
        table1.test4 = insertArray.test4!
    }

    do{
            try managedObject.save()
        }
        catch
        {
            let returnError = error as NSError
            print("\(returnError)")
        }
    }

Upvotes: 0

Views: 218

Answers (1)

Ahmed Onawale
Ahmed Onawale

Reputation: 4050

From what I can see in your code, you are not creating new instances of your testClass object instead you are updating the properties of the only one created right before the loop.

You should move the creation of table1 inside the loop so that new instances can be created on each iteration of the loop.

For efficiency, you should also save your managed object context after the loop.

func insertIntoTestClass(testClassArray : [DBTestClass])
{
    let managedObject = (UIApplication.sharedApplication().delegate as! AppDelegate).managedObjectContext

    for i in 0..<checklistConfiguration.count
    {
      let table1 = NSEntityDescription.insertNewObjectForEntityForName("testClass", inManagedObjectContext: managedObject) as! testClass
    let insertArray = checklistConfiguration[i]

      table1.test1 = insertArray.test1!
      table1.test2 = insertArray.test2!
      table1.test3 = insertArray.test3!
      table1.test4 = insertArray.test4!
    }

    do{
        try managedObject.save()
    }
    catch
    {
        let returnError = error as NSError
        print("\(returnError)")
    }
  }
}

Upvotes: 1

Related Questions