AF
Ash Framework•3mo ago
cr0nk

Enforce each item is unique in attribute array

Hi, is there a way to set a constraint on this array attribute, that enforces each item to be unique? For example it should not allow [:en, :en] . 
attribute :languages, {:array, :atom} do
    default [:en]
    constraints [
      min_length: 1,
      items: [
        one_of: [:en, :de, :fr],
      ]
    ]
  end
attribute :languages, {:array, :atom} do
    default [:en]
    constraints [
      min_length: 1,
      items: [
        one_of: [:en, :de, :fr],
      ]
    ]
  end
Thanks in advance!
2 Replies
ZachDaniel
ZachDaniel•3mo ago
Not as an array, no You can make a custom type, or add a validation to the action/resource etc.
cr0nk
cr0nkOP•3mo ago
Okay thanks!

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