53 lines
1.4 KiB
Elixir
53 lines
1.4 KiB
Elixir
defmodule Mobilizon.Actors.Follower do
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@moduledoc """
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Represents the following of an actor to another actor
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"""
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use Ecto.Schema
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import Ecto.Changeset
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alias Mobilizon.Actors.Follower
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alias Mobilizon.Actors.Actor
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@primary_key {:id, :binary_id, autogenerate: true}
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schema "followers" do
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field(:approved, :boolean, default: false)
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field(:url, :string)
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belongs_to(:target_actor, Actor)
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belongs_to(:actor, Actor)
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end
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@doc false
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def changeset(%Follower{} = member, attrs) do
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member
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|> cast(attrs, [:url, :approved, :target_actor_id, :actor_id])
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|> generate_url()
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|> validate_required([:url, :approved, :target_actor_id, :actor_id])
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|> unique_constraint(:target_actor_id, name: :followers_actor_target_actor_unique_index)
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end
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# If there's a blank URL that's because we're doing the first insert
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defp generate_url(%Ecto.Changeset{data: %Follower{url: nil}} = changeset) do
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case fetch_change(changeset, :url) do
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{:ok, _url} -> changeset
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:error -> do_generate_url(changeset)
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end
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end
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# Most time just go with the given URL
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defp generate_url(%Ecto.Changeset{} = changeset), do: changeset
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defp do_generate_url(%Ecto.Changeset{} = changeset) do
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uuid = Ecto.UUID.generate()
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changeset
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|> put_change(
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:url,
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"#{MobilizonWeb.Endpoint.url()}/follow/#{uuid}"
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)
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|> put_change(
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:id,
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uuid
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)
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end
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end
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