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diff --git a/lib/pleroma/user_relationship.ex b/lib/pleroma/user_relationship.ex
index fbecf3129..82fcc1cdd 100644
--- a/lib/pleroma/user_relationship.ex
+++ b/lib/pleroma/user_relationship.ex
@@ -1,242 +1,244 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.UserRelationship do
use Ecto.Schema
import Ecto.Changeset
import Ecto.Query
alias Ecto.Changeset
alias Pleroma.FollowingRelationship
alias Pleroma.Repo
alias Pleroma.User
alias Pleroma.UserRelationship
+ @type t :: %__MODULE__{}
+
schema "user_relationships" do
belongs_to(:source, User, type: FlakeId.Ecto.CompatType)
belongs_to(:target, User, type: FlakeId.Ecto.CompatType)
field(:relationship_type, Pleroma.UserRelationship.Type)
field(:expires_at, :utc_datetime)
timestamps(updated_at: false)
end
for relationship_type <- Keyword.keys(Pleroma.UserRelationship.Type.__enum_map__()) do
# `def create_block/3`, `def create_mute/3`, `def create_reblog_mute/3`,
# `def create_notification_mute/3`, `def create_inverse_subscription/3`,
# `def endorsement/3`
def unquote(:"create_#{relationship_type}")(source, target, expires_at \\ nil),
do: create(unquote(relationship_type), source, target, expires_at)
# `def delete_block/2`, `def delete_mute/2`, `def delete_reblog_mute/2`,
# `def delete_notification_mute/2`, `def delete_inverse_subscription/2`,
# `def delete_endorsement/2`
def unquote(:"delete_#{relationship_type}")(source, target),
do: delete(unquote(relationship_type), source, target)
# `def block_exists?/2`, `def mute_exists?/2`, `def reblog_mute_exists?/2`,
# `def notification_mute_exists?/2`, `def inverse_subscription_exists?/2`,
# `def inverse_endorsement_exists?/2`
def unquote(:"#{relationship_type}_exists?")(source, target),
do: exists?(unquote(relationship_type), source, target)
# `def get_block_expire_date/2`, `def get_mute_expire_date/2`,
# `def get_reblog_mute_expire_date/2`, `def get_notification_mute_exists?/2`,
# `def get_inverse_subscription_expire_date/2`, `def get_inverse_endorsement_expire_date/2`
def unquote(:"get_#{relationship_type}_expire_date")(source, target),
do: get_expire_date(unquote(relationship_type), source, target)
end
def user_relationship_types, do: Keyword.keys(user_relationship_mappings())
def user_relationship_mappings, do: Pleroma.UserRelationship.Type.__enum_map__()
def changeset(%UserRelationship{} = user_relationship, params \\ %{}) do
user_relationship
|> cast(params, [:relationship_type, :source_id, :target_id, :expires_at])
|> validate_required([:relationship_type, :source_id, :target_id])
|> unique_constraint(:relationship_type,
name: :user_relationships_source_id_relationship_type_target_id_index
)
|> validate_not_self_relationship()
end
def exists?(relationship_type, %User{} = source, %User{} = target) do
UserRelationship
|> where(relationship_type: ^relationship_type, source_id: ^source.id, target_id: ^target.id)
|> Repo.exists?()
end
def get_expire_date(relationship_type, %User{} = source, %User{} = target) do
%UserRelationship{expires_at: expires_at} =
UserRelationship
|> where(
relationship_type: ^relationship_type,
source_id: ^source.id,
target_id: ^target.id
)
|> Repo.one!()
expires_at
end
def create(relationship_type, %User{} = source, %User{} = target, expires_at \\ nil) do
%UserRelationship{}
|> changeset(%{
relationship_type: relationship_type,
source_id: source.id,
target_id: target.id,
expires_at: expires_at
})
|> Repo.insert(
on_conflict: {:replace_all_except, [:id, :inserted_at]},
conflict_target: [:source_id, :relationship_type, :target_id],
returning: true
)
end
def delete(relationship_type, %User{} = source, %User{} = target) do
attrs = %{relationship_type: relationship_type, source_id: source.id, target_id: target.id}
case Repo.get_by(UserRelationship, attrs) do
%UserRelationship{} = existing_record -> Repo.delete(existing_record)
nil -> {:ok, nil}
end
end
def dictionary(
source_users,
target_users,
source_to_target_rel_types \\ nil,
target_to_source_rel_types \\ nil
)
def dictionary(
_source_users,
_target_users,
[] = _source_to_target_rel_types,
[] = _target_to_source_rel_types
) do
[]
end
def dictionary(
source_users,
target_users,
source_to_target_rel_types,
target_to_source_rel_types
)
when is_list(source_users) and is_list(target_users) do
source_user_ids = User.binary_id(source_users)
target_user_ids = User.binary_id(target_users)
get_rel_type_codes = fn rel_type -> user_relationship_mappings()[rel_type] end
source_to_target_rel_types =
Enum.map(source_to_target_rel_types || user_relationship_types(), &get_rel_type_codes.(&1))
target_to_source_rel_types =
Enum.map(target_to_source_rel_types || user_relationship_types(), &get_rel_type_codes.(&1))
__MODULE__
|> where(
fragment(
"(source_id = ANY(?) AND target_id = ANY(?) AND relationship_type = ANY(?)) OR \
(source_id = ANY(?) AND target_id = ANY(?) AND relationship_type = ANY(?))",
^source_user_ids,
^target_user_ids,
^source_to_target_rel_types,
^target_user_ids,
^source_user_ids,
^target_to_source_rel_types
)
)
|> select([ur], [ur.relationship_type, ur.source_id, ur.target_id])
|> Repo.all()
end
def exists?(dictionary, rel_type, source, target, func) do
cond do
is_nil(source) or is_nil(target) ->
false
dictionary ->
[rel_type, source.id, target.id] in dictionary
true ->
func.(source, target)
end
end
@doc ":relationships option for StatusView / AccountView / NotificationView"
def view_relationships_option(reading_user, actors, opts \\ [])
def view_relationships_option(nil = _reading_user, _actors, _opts) do
%{user_relationships: [], following_relationships: []}
end
def view_relationships_option(%User{} = reading_user, actors, opts) do
{source_to_target_rel_types, target_to_source_rel_types} =
case opts[:subset] do
:source_mutes ->
# Used for statuses rendering (FE needs `muted` flag for each status when statuses load)
{[:mute], []}
nil ->
{[:block, :mute, :notification_mute, :reblog_mute], [:block, :inverse_subscription]}
unknown ->
raise "Unsupported :subset option value: #{inspect(unknown)}"
end
user_relationships =
UserRelationship.dictionary(
[reading_user],
actors,
source_to_target_rel_types,
target_to_source_rel_types
)
following_relationships =
case opts[:subset] do
:source_mutes ->
[]
nil ->
FollowingRelationship.all_between_user_sets([reading_user], actors)
unknown ->
raise "Unsupported :subset option value: #{inspect(unknown)}"
end
%{user_relationships: user_relationships, following_relationships: following_relationships}
end
defp validate_not_self_relationship(%Changeset{} = changeset) do
changeset
|> validate_source_id_target_id_inequality()
|> validate_target_id_source_id_inequality()
end
defp validate_source_id_target_id_inequality(%Changeset{} = changeset) do
validate_change(changeset, :source_id, fn _, source_id ->
if source_id == get_field(changeset, :target_id) do
[source_id: "can't be equal to target_id"]
else
[]
end
end)
end
defp validate_target_id_source_id_inequality(%Changeset{} = changeset) do
validate_change(changeset, :target_id, fn _, target_id ->
if target_id == get_field(changeset, :source_id) do
[target_id: "can't be equal to source_id"]
else
[]
end
end)
end
end

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