Added importing quantities

Fixed display order of project quantities

app/controllers/body_trackers_controller.rb

@@ -11,6 +11,20 @@ class BodyTrackersController < ApplicationController
     defaults.delete_if { |n, s| available.include?(s) }
     @project.units.create(defaults.map { |n, s| {name: n, shortname: s} })
 
+    available = Quantity.where(project: @project).map { |q| [[q.name, q.domain], q] }.to_h
+    defaults = Quantity.where(project: nil)
+    Quantity.each_with_level(defaults) do |q, level|
+      unless available.has_key?([q.name, q.domain])
+        obj = @project.quantities.create({
+          name: q.name,
+          domain: q.domain,
+          description: q.description,
+          parent: q.parent ? available[[q.parent.name, q.parent.domain]] : nil
+        })
+        available[[q.name, q.domain]] = obj
+      end
+    end
+
     redirect_to :back
   end
 end

db/migrate/001_create_units.rb

@@ -53,9 +53,9 @@ class CreateUnits < ActiveRecord::Migration
         f6 = Quantity.create project: nil, domain: :diet, parent: f3, name: "Trans",
           description: "Fatty acids with at least one non-conjugated C-C double bond in the" \
           " trans configuration"
-        f7 = Quantity.create project: nil, domain: :diet, parent: f5, name: "omega-3 (n-3)",
+        f7 = Quantity.create project: nil, domain: :diet, parent: f5, name: "Omega-3 (n-3)",
           description: ""
-        f8 = Quantity.create project: nil, domain: :diet, parent: f5, name: "omega-6 (n-6)",
+        f8 = Quantity.create project: nil, domain: :diet, parent: f5, name: "Omega-6 (n-6)",
           description: ""
         f9 = Quantity.create project: nil, domain: :diet, parent: f7, name: "ALA 18:3(n-3)",
           description: "alpha-Linolenic acid"

lib/body_tracking/project_patch.rb

@@ -2,7 +2,7 @@ module BodyTracking
   module ProjectPatch
     Project.class_eval do
       has_many :units, dependent: :destroy
-      has_many :quantities, dependent: :destroy
+      has_many :quantities, -> { order "lft" }, dependent: :destroy
     end
   end
 end