feat: recordar el filtro que estábamos usando

app/controllers/instance_moderations_controller.rb

@@ -3,23 +3,18 @@
 # Actualiza la relación entre un sitio y una instancia
 class InstanceModerationsController < ApplicationController
   before_action :authorize_policy, except: %i[action_on_several]
+  around_action :redirect_to_moderation_queue!
 
   def pause
-    instance_moderation.pause!
-
-    redirect_to site_moderation_queue_path
+    instance_moderation.pause! if instance_moderation.may_pause?
   end
 
   def allow
-    instance_moderation.allow!
-
-    redirect_to site_moderation_queue_path
+    instance_moderation.allow! if instance_moderation.may_allow?
   end
 
   def block
-    instance_moderation.block!
-
-    redirect_to site_moderation_queue_path
+    instance_moderation.block! if instance_moderation.may_block?
   end
 
   def action_on_several
@@ -39,12 +34,16 @@ class InstanceModerationsController < ApplicationController
         instance_moderation.public_send(method)
       end
     end
-
-    redirect_to site_moderation_queue_path
   end
 
   private
 
+  def redirect_to_moderation_queue!(&action)
+    redirect_back fallback_location: site_moderation_queue_path, state: session[:moderation_queue_filtered_by_state]
+
+    yield
+  end
+
   # @return [InstanceModeration]
   def instance_moderation
     @instance_moderation ||= site.instance_moderations.find(params[:instance_moderation_id])

app/controllers/moderation_queue_controller.rb

@@ -6,6 +6,8 @@ class ModerationQueueController < ApplicationController
   def index
     dummy_data
 
+    session[:moderation_queue_filtered_by_state] = params[:state]
+
     # @todo cambiar el estado por query
     @activity_pubs = site.activity_pubs
     @instance_moderations = rubanok_process(site.instance_moderations, with: InstanceModerationProcessor)