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I have 2 plugins I created that store similar data:

Plugin 1: id, name, panel_id, price

Plugin 2: id, name, test_id, price

I want to attach my plugin data to an entry, and I need to make sure they can only select one Panel or Test. I want to know if there is a way to add them as a source for Entries as a new field. Or can I create a similar custom fieldtype to be used for both plugins and have that kind of validation?

I'm using Craft V2.6

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You can use a Relation Field for each of your element types and include a custom js rule so if one of them has a value, the other one can't be selected.

The more difficult way would be to extend the field and the ElementSelectModal and the ElementIndex to select multiple element types but this is going to be a little bit more tricky since you'll need a custom controller to fetch all elements and can't rely on the ElementsController

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  • Is there a similar feature on craft 2?
    – juanmrad
    Jun 22, 2018 at 19:30
  • Yes there is the same field just with slightly different logic
    – Robin Schambach
    Jun 22, 2018 at 19:53
  • Haven't been able to found the equivalent.
    – juanmrad
    Jun 22, 2018 at 20:03
  • Take a look at craft/app/fieldtypes/EntriesFieldType and the class it extends
    – Robin Schambach
    Jun 22, 2018 at 20:12
  • So I create a new FieldType that Extends BaseElementFieldType ? and the class should be on both plugins under the folder fieldtype? something like: Plugin1_TestFieldType and Plugin2_TestFieldType ?
    – juanmrad
    Jun 25, 2018 at 14:23

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