Rails: Permitting Arrays in Strong Parameters

rails_permitting_arrays_in_strong_parameters.md

Rails: Permitting Arrays in Strong Parameters

We can do so by adding an array value to the param:

params.permit(:email, :name, sites: [])

We can even use nested arrays:

params.permit(
  :email,
  :name,
  :sites: [
    platform_a: [],
	platform_b: []
  ]
)

Note that nested parameters must always be permitted last.

Source:

• https://smartlogic.io/blog/permitting-nested-arrays-using-strong-params-in-rails