Add bulk labeling mode for pet appearances

We copy the same feature from alt styles, now that the UI is shared via
support form helpers! Easy peasy!

This adds a "Then: Go to unlabeled appearance" checkbox next to the
submit button on the pet appearance edit form. If checked, it takes you
to the first unlabeled appearance in the database, and keeps the box
checked for next time. Slam through 'em!

app/controllers/pet_states_controller.rb

@@ -8,7 +8,7 @@ class PetStatesController < ApplicationController
 	def update
 		if @pet_state.update(pet_state_params)
 			flash[:notice] = "Pet appearance \##{@pet_state.id} successfully saved!"
-			redirect_to @pet_type
+			redirect_to destination_after_save
 		else
 			render action: :edit, status: :bad_request
 		end
@@ -24,4 +24,29 @@ class PetStatesController < ApplicationController
 	def pet_state_params
 		params.require(:pet_state).permit(:pose, :glitched)
 	end
+
+	def destination_after_save
+		if params[:next] == "unlabeled-appearance"
+			next_unlabeled_appearance_path
+		else
+			@pet_type
+		end
+	end
+
+	def next_unlabeled_appearance_path
+		# Rather than just getting the newest unlabeled pet state, prioritize the
+		# newest *pet type*. This better matches the user's perception of what the
+		# newest state is, because the Rainbow Pool UI is grouped by pet type!
+		unlabeled_appearance = PetState.unlabeled.newest_pet_type.newest.first
+
+		if unlabeled_appearance
+			edit_pet_type_pet_state_path(
+				unlabeled_appearance.pet_type,
+				unlabeled_appearance,
+				next: "unlabeled-appearance"
+			)
+		else
+			@pet_type
+		end
+	end
 end

app/models/pet_state.rb

@@ -17,6 +17,10 @@ class PetState < ApplicationRecord
 
   alias_method :swf_asset_ids_from_association, :swf_asset_ids
 
+  scope :newest, -> { order(created_at: :desc) }
+  scope :newest_pet_type, -> { joins(:pet_type).merge(PetType.newest) }
+  scope :unlabeled, -> { with_pose("UNKNOWN") }
+
   # A simple ordering that tries to bring reliable pet states to the front.
   scope :emotion_order, -> {
     order(Arel.sql(

app/models/pet_type.rb

@@ -15,6 +15,7 @@ class PetType < ApplicationRecord
     species = Species.find_by_name!(species_name)
     where(color_id: color.id, species_id: species.id)
   }
+  scope :newest, -> { order(created_at: :desc) }
   scope :preferring_species, ->(species_id) {
     joins(:species).order([Arel.sql("species_id = ? DESC"), species_id])
   }

app/views/pet_states/edit.html.haml

@@ -34,6 +34,9 @@
 	
 	= f.actions do
 		= f.submit "Save changes"
+		= f.go_to_next_field title: "If checked, takes you to the first unlabeled appearance in the database, if any. Useful for labeling in bulk!" do
+			= f.go_to_next_check_box "unlabeled-appearance"
+			Then: Go to unlabeled appearance
 
 - content_for :stylesheets do
 	= stylesheet_link_tag "application/breadcrumbs"