This answer links to a list of all possible types that can be used with
One plugin that can be used is ItemList.
But I can’t find any documentation on how to define what items are on the list.
I would have expected something like this:
$ status_definition = DataDefinition::create('list') ->setLabel(new TranslatableMarkup('Status')) ->setRequired(TRUE) ->setListItems([ 1 => 'One', 2 => 'Two', 3 => 'Three', ]);
But the method setListItems (or anything similar) does not exist.
For some more context I’m following this article on how to extend the entity reference field type but instead of adding an integer field I want to add a list field.
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