Embedded schemas vs plain old structs

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2

You can think of embedded schemas just as convenience to declare the data+types together. But you don’t need them. For example, you can also do this:

defmodule Post do
  defstruct :title
end

data = %Post{}
types = %{title: :string}
Ecto.Changeset.cast({data, types}, params, [:title])

and it would work the same.

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