Added MeasurementRoutine as a nested Measurement model

Updated ItemsWithQuantities to work with MeasurementRoutine
Replaced ColumnViews HABTM with polymorphic HMT
Added Measurement notes
Added destroy restrictions on Quantity
Replaced BodyTrackingPluginController with Finders concern
Removed 'body_trackers' prefix from paths
Unified styling for textarea

config/locales/en.yml

@@ -68,6 +68,8 @@ en:
     filters:
       zero_nil: 'missing -> 0?'
     form:
+      label_routine: 'Measurement routine (shared among all measurements of this kind)'
+      label_measurement: 'Measurement'
       button_new_readout: 'Add readout'
       button_delete_readout: 'Delete'
       null_source: '- unspecified -'

config/routes.rb

@@ -5,38 +5,42 @@ resources :projects, shallow: true do
   resources :body_trackers, only: [:index] do
     collection do
       post 'defaults'
-      resources :measurements, only: [:index, :new, :create, :edit, :update, :destroy] do
-        member do
-          get 'retake'
-          get 'readouts'
-          post 'toggle_column'
-        end
-        collection do
-          get 'filter'
-        end
-      end
-      resources :ingredients, only: [:index, :new, :create, :edit, :update, :destroy] do
-        post 'toggle', on: :member
-        collection do
-          get 'nutrients'
-          post 'toggle_column'
-          get 'filter'
-          post 'import'
-        end
-      end
-      resources :sources, only: [:index, :create, :destroy]
-      resources :quantities, only: [:index, :new, :create, :edit, :update, :destroy] do
-        member do
-          get 'new_child'
-          post 'create_child'
-          post 'move/:direction', to: 'quantities#move', as: :move
-        end
-        collection do
-          get 'parents'
-          get 'filter'
-        end
-      end
-      resources :units, only: [:index, :create, :destroy]
     end
   end
+  resources :measurement_routines, only: [] do
+    member do
+      get 'readouts', to: 'measurements#readouts'
+      post 'toggle_column', to: 'measurements#toggle_column'
+    end
+  end
+  resources :measurements, only: [:index, :new, :create, :edit, :update, :destroy] do
+    member do
+      get 'retake'
+    end
+    collection do
+      get 'filter'
+    end
+  end
+  resources :ingredients, only: [:index, :new, :create, :edit, :update, :destroy] do
+    post 'toggle', on: :member
+    collection do
+      get 'nutrients'
+      post 'toggle_column'
+      get 'filter'
+      post 'import'
+    end
+  end
+  resources :sources, only: [:index, :create, :destroy]
+  resources :quantities, only: [:index, :new, :create, :edit, :update, :destroy] do
+    member do
+      get 'new_child'
+      post 'create_child'
+      post 'move/:direction', to: 'quantities#move', as: :move
+    end
+    collection do
+      get 'parents'
+      get 'filter'
+    end
+  end
+  resources :units, only: [:index, :create, :destroy]
 end