TwitterAPI: Add follower/following pagination.

lib/pleroma/user.ex

@@ -471,7 +471,7 @@ defmodule Pleroma.User do
     end
   end
 
-  def get_followers_query(%User{id: id, follower_address: follower_address}) do
+  def get_followers_query(%User{id: id, follower_address: follower_address}, nil) do
     from(
       u in User,
       where: fragment("? <@ ?", ^[follower_address], u.following),
@@ -479,13 +479,23 @@ defmodule Pleroma.User do
     )
   end
 
-  def get_followers(user) do
-    q = get_followers_query(user)
+  def get_followers_query(user, page) do
+    from(
+      u in get_followers_query(user, nil),
+      limit: 20,
+      offset: ^((page - 1) * 20)
+    )
+  end
+
+  def get_followers_query(user), do: get_followers_query(user, nil)
+
+  def get_followers(user, page \\ nil) do
+    q = get_followers_query(user, page)
 
     {:ok, Repo.all(q)}
   end
 
-  def get_friends_query(%User{id: id, following: following}) do
+  def get_friends_query(%User{id: id, following: following}, nil) do
     from(
       u in User,
       where: u.follower_address in ^following,
@@ -493,8 +503,18 @@ defmodule Pleroma.User do
     )
   end
 
-  def get_friends(user) do
-    q = get_friends_query(user)
+  def get_friends_query(user, page) do
+    from(
+      u in get_friends_query(user, nil),
+      limit: 20,
+      offset: ^((page - 1) * 20)
+    )
+  end
+
+  def get_friends_query(user), do: get_friends_query(user, nil)
+
+  def get_friends(user, page \\ nil) do
+    q = get_friends_query(user, page)
 
     {:ok, Repo.all(q)}
   end

lib/pleroma/web/twitter_api/twitter_api_controller.ex

@@ -472,8 +472,10 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
   end
 
   def followers(%{assigns: %{user: for_user}} = conn, params) do
+    page = params["page"] || 1
+
     with {:ok, user} <- TwitterAPI.get_user(for_user, params),
-         {:ok, followers} <- User.get_followers(user) do
+         {:ok, followers} <- User.get_followers(user, page) do
       followers =
         cond do
           for_user && user.id == for_user.id -> followers
@@ -490,8 +492,10 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
   end
 
   def friends(%{assigns: %{user: for_user}} = conn, params) do
+    page = params["page"] || 1
+
     with {:ok, user} <- TwitterAPI.get_user(conn.assigns[:user], params),
-         {:ok, friends} <- User.get_friends(user) do
+         {:ok, friends} <- User.get_friends(user, page) do
       friends =
         cond do
           for_user && user.id == for_user.id -> friends