132 lines
3.5 KiB
Elixir
132 lines
3.5 KiB
Elixir
# Pleroma: A lightweight social networking server
|
|
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
|
|
# SPDX-License-Identifier: AGPL-3.0-only
|
|
|
|
defmodule Pleroma.FollowingRelationship do
|
|
use Ecto.Schema
|
|
|
|
import Ecto.Changeset
|
|
import Ecto.Query
|
|
|
|
alias FlakeId.Ecto.CompatType
|
|
alias Pleroma.Repo
|
|
alias Pleroma.User
|
|
|
|
schema "following_relationships" do
|
|
field(:state, :string, default: "accept")
|
|
|
|
belongs_to(:follower, User, type: CompatType)
|
|
belongs_to(:following, User, type: CompatType)
|
|
|
|
timestamps()
|
|
end
|
|
|
|
def changeset(%__MODULE__{} = following_relationship, attrs) do
|
|
following_relationship
|
|
|> cast(attrs, [:state])
|
|
|> put_assoc(:follower, attrs.follower)
|
|
|> put_assoc(:following, attrs.following)
|
|
|> validate_required([:state, :follower, :following])
|
|
end
|
|
|
|
def get(%User{} = follower, %User{} = following) do
|
|
__MODULE__
|
|
|> where(follower_id: ^follower.id, following_id: ^following.id)
|
|
|> Repo.one()
|
|
end
|
|
|
|
def update(follower, following, "reject"), do: unfollow(follower, following)
|
|
|
|
def update(%User{} = follower, %User{} = following, state) do
|
|
case get(follower, following) do
|
|
nil ->
|
|
follow(follower, following, state)
|
|
|
|
following_relationship ->
|
|
following_relationship
|
|
|> cast(%{state: state}, [:state])
|
|
|> validate_required([:state])
|
|
|> Repo.update()
|
|
end
|
|
end
|
|
|
|
def follow(%User{} = follower, %User{} = following, state \\ "accept") do
|
|
%__MODULE__{}
|
|
|> changeset(%{follower: follower, following: following, state: state})
|
|
|> Repo.insert(on_conflict: :nothing)
|
|
end
|
|
|
|
def unfollow(%User{} = follower, %User{} = following) do
|
|
case get(follower, following) do
|
|
%__MODULE__{} = following_relationship -> Repo.delete(following_relationship)
|
|
_ -> {:ok, nil}
|
|
end
|
|
end
|
|
|
|
def follower_count(%User{} = user) do
|
|
%{followers: user, deactivated: false}
|
|
|> User.Query.build()
|
|
|> Repo.aggregate(:count, :id)
|
|
end
|
|
|
|
def following_count(%User{id: nil}), do: 0
|
|
|
|
def following_count(%User{} = user) do
|
|
%{friends: user, deactivated: false}
|
|
|> User.Query.build()
|
|
|> Repo.aggregate(:count, :id)
|
|
end
|
|
|
|
def get_follow_requests(%User{id: id}) do
|
|
__MODULE__
|
|
|> join(:inner, [r], f in assoc(r, :follower))
|
|
|> where([r], r.state == "pending")
|
|
|> where([r], r.following_id == ^id)
|
|
|> select([r, f], f)
|
|
|> Repo.all()
|
|
end
|
|
|
|
def following?(%User{id: follower_id}, %User{id: followed_id}) do
|
|
__MODULE__
|
|
|> where(follower_id: ^follower_id, following_id: ^followed_id, state: "accept")
|
|
|> Repo.exists?()
|
|
end
|
|
|
|
def following(%User{} = user) do
|
|
following =
|
|
__MODULE__
|
|
|> join(:inner, [r], u in User, on: r.following_id == u.id)
|
|
|> where([r], r.follower_id == ^user.id)
|
|
|> where([r], r.state == "accept")
|
|
|> select([r, u], u.follower_address)
|
|
|> Repo.all()
|
|
|
|
if not user.local or user.invisible do
|
|
following
|
|
else
|
|
[user.follower_address | following]
|
|
end
|
|
end
|
|
|
|
def move_following(origin, target) do
|
|
__MODULE__
|
|
|> join(:inner, [r], f in assoc(r, :follower))
|
|
|> where(following_id: ^origin.id)
|
|
|> where([r, f], f.allow_following_move == true)
|
|
|> limit(50)
|
|
|> preload([:follower])
|
|
|> Repo.all()
|
|
|> Enum.map(fn following_relationship ->
|
|
Repo.delete(following_relationship)
|
|
Pleroma.Web.CommonAPI.follow(following_relationship.follower, target)
|
|
end)
|
|
|> case do
|
|
[] ->
|
|
User.update_follower_count(origin)
|
|
:ok
|
|
|
|
_ ->
|
|
move_following(origin, target)
|
|
end
|
|
end
|
|
end
|