Merged Nutrient and Readout into QuantityValue

Aliased date attributes of Meal and Measurement

db/migrate/001_create_schema.rb

@@ -1,12 +1,5 @@
 class CreateSchema < ActiveRecord::Migration
   def change
-    create_table :units do |t|
-      t.references :project
-      t.string :name
-      t.string :shortname
-      t.timestamps null: false
-    end
-
     create_table :quantities do |t|
       t.references :project
       t.integer :domain
@@ -32,6 +25,22 @@ class CreateSchema < ActiveRecord::Migration
       t.references :quantity
     end
 
+    create_table :quantity_values do |t|
+      t.string :type
+      t.references :registry, polymorphic: true
+      t.references :quantity
+      t.decimal :value, precision: 12, scale: 6
+      t.references :unit
+      t.timestamps null: false
+    end
+
+    create_table :units do |t|
+      t.references :project
+      t.string :name
+      t.string :shortname
+      t.timestamps null: false
+    end
+
     create_table :sources do |t|
       t.references :project
       t.string :name
@@ -39,51 +48,6 @@ class CreateSchema < ActiveRecord::Migration
       t.timestamps null: false
     end
 
-    create_table :foods do |t|
-      t.references :project
-      t.string :name
-      t.text :notes
-      t.decimal :ref_amount, precision: 12, scale: 6
-      t.references :ref_unit
-      t.integer :group
-      t.references :source
-      t.string :source_ident
-      t.boolean :hidden
-      t.decimal :ready_amount, precision: 12, scale: 6
-      t.timestamps null: false
-    end
-
-    create_table :nutrients do |t|
-      t.references :food
-      t.references :quantity
-      t.decimal :amount, precision: 12, scale: 6
-      t.references :unit
-      t.timestamps null: false
-    end
-
-    create_table :measurement_routines do |t|
-      t.references :project
-      t.string :name
-      t.text :description
-      t.timestamps null: false
-    end
-
-    create_table :measurements do |t|
-      t.references :routine
-      t.references :source
-      t.text :notes
-      t.timestamp :taken_at
-      t.timestamps null: false
-    end
-
-    create_table :readouts do |t|
-      t.references :measurement
-      t.references :quantity
-      t.decimal :value, precision: 12, scale: 6
-      t.references :unit
-      t.timestamps null: false
-    end
-
     create_table :meals do |t|
       t.references :project
       t.text :notes
@@ -99,5 +63,34 @@ class CreateSchema < ActiveRecord::Migration
       t.decimal :ready_ratio, precision: 12, scale: 6
       t.timestamps null: false
     end
+
+    create_table :foods do |t|
+      t.references :project
+      t.string :name
+      t.text :notes
+      t.decimal :ref_amount, precision: 12, scale: 6
+      t.references :ref_unit
+      t.integer :group
+      t.references :source
+      t.string :source_ident
+      t.boolean :hidden
+      t.decimal :ready_amount, precision: 12, scale: 6
+      t.timestamps null: false
+    end
+
+    create_table :measurement_routines do |t|
+      t.references :project
+      t.string :name
+      t.text :description
+      t.timestamps null: false
+    end
+
+    create_table :measurements do |t|
+      t.references :routine
+      t.references :source
+      t.text :notes
+      t.timestamp :taken_at
+      t.timestamps null: false
+    end
   end
 end