Realm-js: Missing feature: delete by id

[LeoAref]

I'm using Realm and I really miss the feature of deleting objects using thier Ids, the way we've right now is:

realm.write(() => {
  // Create a book object
  let book = realm.create('Book', {id: 1, title: 'Recipes', price: 35});

  // Delete the book
  realm.delete(book);

  // Delete multiple books by passing in a `Results`, `List`,
  // or JavaScript `Array`
  let allBooks = realm.objects('Book');
  realm.delete(allBooks); // Deletes all books
});

But I see that it'd be handy to delete by just passing the id:

realm.write(() => {
  // Create a book object
  let book = realm.create('Book', {id: 1, title: 'Recipes', price: 35});

  // Get the book id
  let bookId = book.id;

  // Delete the book
  realm.delete('Book', bookId);
  // or
  realm.delete(bookId);
});

[kristiandupont]

Agreed, this would be useful.

[alazier]

Right now the easiest way to do this:

realm.delete(realm.objectForPrimaryKey('Book', bookId));

[lossen]

When I do realm.delete(realm.objectForPrimaryKey('Book', bookId));
I get this error https://github.com/realm/realm-js/issues/1031

[Dhirajbhujbal]

Excellent @alazier your solution has been worked
@lossen Could you please this

`
realm.write( () => {

realm.delete(realm.objectForPrimaryKey('Book', bookId));

})

`

[saravanakumargn]

I am getting below error when I am using objectForPrimaryKey to delete.

    realm.write(() => {
      realm.delete(realm.objectForPrimaryKey(
        PostSchema.schema.name,
        currentPostItem?.id || 0,
      ));
    });

Error: Argument to 'delete' must be a Realm object or a collection of Realm objects.



md5-1ebdf66080fcabde9176d44e80bd19fc



 const currentDeletedItem = realm
      .objects(PostSchema.schema.name)
    realm.write(() => {
      realm.delete(currentDeletedItem);
    });

[YaoHuiJi]

Right now the easiest way to do this:

realm.delete(realm.objectForPrimaryKey('Book', bookId));

After I upgrade realm from 2.29.2 to 5.0.3, this piece of code don't works now( I just did the same thing in my project, it works fine all the time until I upgrade realm to 5.0.3), just like @saravanakumargn mentioned above there is an error occurred 'Argument to 'delete' must be a Realm object or a collection of Realm objects' , I called object.isValid() and the return value is true, but when I pass this object to realm.delete, error occurred. @alazier do you have any idea about this?

related issue

[YaoHuiJi]

I am getting below error when I am using objectForPrimaryKey to delete.

    realm.write(() => {
      realm.delete(realm.objectForPrimaryKey(
        PostSchema.schema.name,
        currentPostItem?.id || 0,
      ));
    });

Error: Argument to 'delete' must be a Realm object or a collection of Realm objects.

So my solution is

 const currentDeletedItem = realm
      .objects(PostSchema.schema.name)
    realm.write(() => {
      realm.delete(currentDeletedItem);
    });

hi @saravanakumargn ,do you have any idea why we can't use objectForPrimaryKey to delete object now?

[TaraSinghDanu]

Right now the easiest way to do this:

realm.delete(realm.objectForPrimaryKey('Book', bookId));

@alazier What if I have to delete multiple items having same ids?

[kneth]

@TaraSinghDanu

If the id is a primary key, per definition you cannot have multiple objects. For the case where id is not a primary key, you can do something like:

realm.delete(realm.objects('Book').filtered("id = $1", id);