mobilizon/lib/mobilizon_web/controllers/fallback_controller.ex

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Elixir
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defmodule MobilizonWeb.FallbackController do
@moduledoc """
Translates controller action results into valid `Plug.Conn` responses.
See `Phoenix.Controller.action_fallback/1` for more details.
"""
use MobilizonWeb, :controller
def call(conn, {:error, %Ecto.Changeset{} = changeset}) do
conn
|> put_status(:unprocessable_entity)
|> put_view(MobilizonWeb.ChangesetView)
|> render("error.json", changeset: changeset)
end
def call(conn, {:error, nil}) do
conn
|> put_status(:unprocessable_entity)
|> put_view(MobilizonWeb.ErrorView)
|> render("invalid_request.json")
end
def call(conn, {:error, :not_found}) do
conn
|> put_status(:not_found)
|> put_view(MobilizonWeb.ErrorView)
|> render("404.html")
end
end