ColumnView fixes

app/models/column_view.rb

@@ -12,6 +12,7 @@ class ColumnView < ActiveRecord::Base
     column = self.quantities.find(q.id)
     self.quantites.destroy(column)
   rescue ActiveRecord::RecordNotFound
-    self.quantities.create!(quantity: q)
+    # Cannot 'create' association, as ColumnView (parent) may not be saved yet
+    self.quantities.append(q).save!
   end
 end

app/models/measurement.rb

@@ -28,21 +28,7 @@ class Measurement < ActiveRecord::Base
     end
   end
 
-  # Copy/rename ColumnView on Measurement rename
+  after_save :cleanup_column_view, if: :name_changed?
-  after_save do
-    old_column_view = self.project.column_views
-      .find_by(name: self.name_was, domain: :measurement)
-    return unless old_column_view
-
-    if self.project.measurements.exists?(name: self.name_was)
-      return unless old_column_view.quantities.exist?
-      self.column_view.quantities.create(old_column_view.quantities)
-      self.column_view.save!
-    else
-      old_column_view.name = self.name
-      old_column_view.save!
-    end
-  end, if: :name_changed?
 
   # Destroy ColumnView after last Measurement destruction
   after_destroy do
@@ -52,7 +38,8 @@ class Measurement < ActiveRecord::Base
   end
 
   def column_view
-    self.project.column_views.find_or_create_by(name: self.name, domain: :measurement)
+    self.project.column_views
+      .find_or_create_by(name: self.name, domain: ColumnView.domains[:measurement])
   end
 
   def toggle_hidden!
@@ -72,4 +59,19 @@ class Measurement < ActiveRecord::Base
   def taken_at_time=(value)
     self.taken_at = Time.parse(value, self.taken_at)
   end
+
+  private
+
+  # Copy/rename ColumnView on Measurement rename
+  def cleanup_column_view
+    old_column_view = self.project.column_views
+      .find_by(name: self.name_was, domain: ColumnView.domains[:measurement])
+    return unless old_column_view
+
+    if self.project.measurements.exists?(name: self.name_was)
+      self.column_view.quantities.append(old_column_view.quantities).save!
+    else
+      old_column_view.update!(name: self.name)
+    end
+  end
 end

app/views/ingredients/_options.html.erb

@@ -9,7 +9,7 @@
         <tr>
           <td style="width:100%"></td>
           <td>
-            <%= select_tag 'id', toggle_column_options %>
+            <%= select_tag 'quantity_id', toggle_column_options %>
           </td>
           <td>
             <%= submit_tag l(:button_add) %>

app/views/measurements/_options.html.erb

@@ -9,7 +9,7 @@
         <tr>
           <td style="width:100%"></td>
           <td>
-            <%= select_tag 'id', toggle_column_options %>
+            <%= select_tag 'quantity_id', toggle_column_options %>
           </td>
           <td>
             <%= submit_tag l(:button_add) %>

db/migrate/001_create_schema.rb

@@ -26,9 +26,9 @@ class CreateSchema < ActiveRecord::Migration
       t.integer :domain
     end
 
-    create_table :quantities_column_views do |t|
+    create_table :column_views_quantities do |t|
-      t.references :quantity
       t.references :column_view
+      t.references :quantity
     end
 
     create_table :sources do |t|

lib/body_tracking/application_controller_patch.rb

@@ -3,15 +3,15 @@ module BodyTracking
     ApplicationController.class_eval do
       private
 
-      def find_quantity(id = params[:id])
+      def find_quantity(id = :id)
-        @quantity = Quantity.find(id)
+        @quantity = Quantity.find(params[id])
         @project = @quantity.project
       rescue ActiveRecord::RecordNotFound
         render_404
       end
 
       def find_quantity_by_quantity_id
-        find_quantity(params[:quantity_id])
+        find_quantity(:quantity_id)
       end
     end
   end

lib/body_tracking/project_patch.rb

@@ -10,7 +10,8 @@ module BodyTracking
       has_many :units, dependent: :destroy
 
       def nutrients_column_view
-        self.column_views.find_or_create_by(name: 'Nutrients', domain: :diet)
+        self.column_views
+          .find_or_create_by(name: 'Nutrients', domain: ColumnView.domains[:diet])
       end
     end
   end