Move fetching of services to controller to avoid n+1 queries

app/controllers/inbox_controller.rb

@@ -8,16 +8,12 @@ class InboxController < ApplicationController
   def show
     find_author
     find_inbox_entries
-
-    if @author_user && @inbox_count.zero?
-      # rubocop disabled because of a false positive
-      flash[:info] = t(".author.info", author: @author) # rubocop:disable Rails/ActionControllerFlashBeforeRender
-      redirect_to inbox_path(last_id: params[:last_id])
-    end
+    check_for_empty_filter
 
     @delete_id = find_delete_id
-
+    @services = current_user.services
     @disabled = true if @inbox.empty?
+
     respond_to do |format|
       format.html
       format.turbo_stream do
@@ -50,6 +46,13 @@ class InboxController < ApplicationController
 
   private
 
+  def check_for_empty_filter
+    return unless @author_user && @inbox_count.zero?
+
+    flash[:info] = t(".author.info", author: @author)
+    redirect_to inbox_path(last_id: params[:last_id])
+  end
+
   def find_author
     return if params[:author].blank?
 

app/views/inbox/_entry.html.haml

@@ -40,9 +40,9 @@
           = render "shared/format_link"
     .card-footer.d-none{ id: "ib-options-#{i.id}" }
       %h4= t(".sharing.heading")
-      - if current_user.services.count.positive?
+      - if @services.count.positive?
         .row
-          - current_user.services.each do |service|
+          - @services.each do |service|
             .col-md-3.col-sm-4.col-xs-6
               %label
                 %input{ type: "checkbox", name: "ib-share", checked: :checked, data: { ib_id: i.id, service: service.provider } }