Added GroupPinnedStatuses

• Added:
- GroupPinnedStatuses
- controllers for timeline, creation, deletion
- redux actions, reducers for creation, deletion
- timeline fetching in timelines action
- options to pin, unpin in status options popover for group admin

app/controllers/api/v1/timelines/group_controller.rb

@@ -13,7 +13,7 @@ class Api::V1::Timelines::GroupController < Api::BaseController
     if current_user
       render json: @statuses,
             each_serializer: REST::StatusSerializer,
-            relationships: StatusRelationshipsPresenter.new(@statuses, current_user.account_id)
+            relationships: StatusRelationshipsPresenter.new(@statuses, current_user.account_id, group_id: @group.id)
     else
       render json: @statuses, each_serializer: REST::StatusSerializer
     end

app/controllers/api/v1/timelines/group_pins_controller.rb

@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+
+class Api::V1::Timelines::GroupPinsController < Api::BaseController
+  before_action :set_group
+  before_action :set_statuses
+
+  def show
+    if current_user
+      render json: @statuses,
+            each_serializer: REST::StatusSerializer,
+            relationships: StatusRelationshipsPresenter.new(@statuses, current_user.account_id, group_id: @group.id)
+    else
+      render json: @statuses, each_serializer: REST::StatusSerializer
+    end
+  end
+
+  private
+
+  def set_group
+    @group = Group.where(id: params[:id], is_archived: false).first
+  end
+
+  def set_statuses
+    @statuses = cached_group_statuses
+  end
+
+  def cached_group_statuses
+    cache_collection group_statuses, Status
+  end
+
+  def group_statuses
+    statuses = []
+    @group.pinned_statuses.each do |s|
+      statuses << s
+    end
+    statuses
+  end
+
+end