mobilizon.chapril.org-mobil.../lib/mobilizon/actors/member.ex
2019-09-13 02:15:04 +02:00

60 lines
1.6 KiB
Elixir

defmodule Mobilizon.Actors.Member do
@moduledoc """
Represents the membership of an actor to a group.
"""
use Ecto.Schema
import Ecto.Changeset
alias Mobilizon.Actors.{Actor, MemberRole}
@type t :: %__MODULE__{
role: MemberRole.t(),
parent: Actor.t(),
actor: Actor.t()
}
@required_attrs [:parent_id, :actor_id]
@optional_attrs [:role]
@attrs @required_attrs ++ @optional_attrs
schema "members" do
field(:role, MemberRole, default: :member)
belongs_to(:parent, Actor)
belongs_to(:actor, Actor)
timestamps()
end
@doc """
Gets the default member role depending on the actor openness.
"""
@spec get_default_member_role(Actor.t()) :: atom
def get_default_member_role(%Actor{openness: :open}), do: :member
def get_default_member_role(%Actor{}), do: :not_approved
@doc """
Checks whether the actor can be joined to the group.
"""
def can_be_joined(%Actor{type: :Group, openness: :invite_only}), do: false
def can_be_joined(%Actor{type: :Group}), do: true
@doc """
Checks whether the member is an administrator (admin or creator) of the group.
"""
def is_administrator(%__MODULE__{role: :administrator}), do: {:is_admin, true}
def is_administrator(%__MODULE__{role: :creator}), do: {:is_admin, true}
def is_administrator(%__MODULE__{}), do: {:is_admin, false}
@doc false
@spec changeset(t, map) :: Ecto.Changeset.t()
def changeset(%__MODULE__{} = member, attrs) do
member
|> cast(attrs, @attrs)
|> validate_required(@required_attrs)
|> unique_constraint(:parent_id, name: :members_actor_parent_unique_index)
end
end