RomainT
Validate_inclusion with dynamic enum
Hello,
I want to validates a value among possible values with validate_inclusion but I’m stuck.
My use case is an avatar generation system, layer by layer. An avatar is defined by a pack (Dragon Ball, Among Us…) and many layers (body, hat, pants…). Let’s say that you chose the Dragon ball pack that only has 3 bodies while the Among Us pack has 10. I need the enum argument of validates_inclusion(:body, enum) to depend on the pack.
Is it possible? How could I implement that?
Thanks!
Marked As Solved
lud
I dont think the enum has to be static. I think you can pass any valid enumerable.
So something like that should work:
def changeset(changeset) do
changeset
|> cast(...)
|> validate_required(...)
|> validate_parts()
end
defp validate_parts(changeset) do
pack = fetch_field!(changeset, :pack)
changeset
|> validate_inclusion(:body, Packs.parts_for(pack, :body))
|> validate_inclusion(:pants, Packs.parts_for(pack, :pants))
end
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