Add pagination to events, groups, partipants to an event and categories

lists

lib/mobilizon/actors/actor.ex

@@ -20,11 +20,13 @@ defmodule Mobilizon.Actors.Actor do
   """
   use Ecto.Schema
   import Ecto.Changeset
+
   alias Mobilizon.Actors
   alias Mobilizon.Actors.{Actor, User, Follower, Member}
   alias Mobilizon.Events.Event
 
   import Ecto.Query
+  import Mobilizon.Ecto
   alias Mobilizon.Repo
 
   require Logger
@@ -232,18 +234,15 @@ defmodule Mobilizon.Actors.Actor do
 
   If actor A and C both follow actor B, actor B's followers are A and C
   """
-  def get_followers(%Actor{id: actor_id} = _actor, page \\ 1, limit \\ 10) do
-    start = (page - 1) * limit
-
+  def get_followers(%Actor{id: actor_id} = _actor, page \\ nil, limit \\ nil) do
     Repo.all(
       from(
         a in Actor,
         join: f in Follower,
         on: a.id == f.actor_id,
-        where: f.target_actor_id == ^actor_id,
-        limit: ^limit,
-        offset: ^start
+        where: f.target_actor_id == ^actor_id
       )
+      |> paginate(page, limit)
     )
   end
 
@@ -252,18 +251,15 @@ defmodule Mobilizon.Actors.Actor do
 
   If actor A follows actor B and C, actor A's followings are B and B
   """
-  def get_followings(%Actor{id: actor_id} = _actor, page \\ 1, limit \\ 10) do
-    start = (page - 1) * limit
-
+  def get_followings(%Actor{id: actor_id} = _actor, page \\ nil, limit \\ nil) do
     Repo.all(
       from(
         a in Actor,
         join: f in Follower,
         on: a.id == f.target_actor_id,
-        where: f.actor_id == ^actor_id,
-        limit: ^limit,
-        offset: ^start
+        where: f.actor_id == ^actor_id
       )
+      |> paginate(page, limit)
     )
   end
 

lib/mobilizon/actors/actors.ex

@@ -4,6 +4,8 @@ defmodule Mobilizon.Actors do
   """
 
   import Ecto.Query, warn: false
+  import Mobilizon.Ecto
+
   alias Mobilizon.Repo
 
   alias Mobilizon.Actors.{Actor, Bot, Member, Follower, User}
@@ -150,8 +152,14 @@ defmodule Mobilizon.Actors do
   @doc """
   List the groups
   """
-  def list_groups do
-    Repo.all(from(a in Actor, where: a.type == ^:Group))
+  def list_groups(page \\ nil, limit \\ nil) do
+    Repo.all(
+      from(
+        a in Actor,
+        where: a.type == ^:Group
+      )
+      |> paginate(page, limit)
+    )
   end
 
   def get_group_by_name(name) do
@@ -446,21 +454,18 @@ defmodule Mobilizon.Actors do
   Find actors by their name or displayed name
   """
   @spec find_actors_by_username_or_name(String.t(), integer(), integer()) :: list(Actor.t())
-  def find_actors_by_username_or_name(username, page \\ 1, limit \\ 10)
+  def find_actors_by_username_or_name(username, page \\ nil, limit \\ nil)
   def find_actors_by_username_or_name("", _page, _limit), do: []
 
   def find_actors_by_username_or_name(username, page, limit) do
-    start = (page - 1) * limit
-
     Repo.all(
       from(
         a in Actor,
-        limit: ^limit,
-        offset: ^start,
         where:
           ilike(a.preferred_username, ^like_sanitize(username)) or
             ilike(a.name, ^like_sanitize(username))
       )
+      |> paginate(page, limit)
     )
   end