58 lines
1.5 KiB
Elixir
58 lines
1.5 KiB
Elixir
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defmodule Mobilizon.Conversations.Conversation do
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@moduledoc """
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Represents a conversation
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"""
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use Ecto.Schema
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import Ecto.Changeset
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alias Ecto.Changeset
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alias Mobilizon.Actors.Actor
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alias Mobilizon.Conversations.ConversationParticipant
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alias Mobilizon.Discussions.Comment
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alias Mobilizon.Events.Event
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@type t :: %__MODULE__{
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id: String.t(),
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origin_comment: Comment.t(),
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last_comment: Comment.t(),
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participants: list(Actor.t())
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}
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@required_attrs [:origin_comment_id, :last_comment_id]
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@optional_attrs [:event_id]
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@attrs @required_attrs ++ @optional_attrs
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schema "conversations" do
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belongs_to(:origin_comment, Comment)
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belongs_to(:last_comment, Comment)
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belongs_to(:event, Event)
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has_many(:comments, Comment)
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many_to_many(:participants, Actor,
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join_through: ConversationParticipant,
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join_keys: [conversation_id: :id, actor_id: :id],
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on_replace: :delete
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)
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timestamps(type: :utc_datetime)
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end
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@doc false
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@spec changeset(t | Ecto.Schema.t(), map) :: Ecto.Changeset.t()
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def changeset(%__MODULE__{} = conversation, attrs) do
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conversation
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|> cast(attrs, @attrs)
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|> maybe_set_participants(attrs)
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|> validate_required(@required_attrs)
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end
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defp maybe_set_participants(%Changeset{} = changeset, %{participants: participants})
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when length(participants) > 0 do
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put_assoc(changeset, :participants, participants)
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end
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defp maybe_set_participants(%Changeset{} = changeset, _), do: changeset
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end
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