Preliminary MealsController#create

app/controllers/meals_controller.rb

@@ -19,6 +19,14 @@ class MealsController < ApplicationController
   end
 
   def create
+    @meal = @project.meals.new(meal_params)
+    if @meal.save
+      flash[:notice] = 'Created new meal'
+      prepare_meals
+    else
+      @meal.ingredients.new if @meal.ingredients.empty?
+      render :new
+    end
   end
 
   def destroy
@@ -26,6 +34,19 @@ class MealsController < ApplicationController
 
   private
 
+  def meal_params
+    params.require(:meal).permit(
+      :notes,
+      ingredients_attributes:
+      [
+        :id,
+        :food_id,
+        :amount,
+        :_destroy
+      ]
+    )
+  end
+
   def prepare_meals
     @meals = @project.meals.includes(:foods)
   end

app/models/ingredient.rb

@@ -1,8 +1,14 @@
 class Ingredient < ActiveRecord::Base
-  belongs_to :composition, inverse_of: :ingredients, required: true
+  belongs_to :composition, inverse_of: :ingredients, polymorphic: true, required: true
   belongs_to :food, required: true
   belongs_to :part_of, required: false
 
   validates :ready_ratio, numericality: {greater_than_or_equal_to: 0.0}
   validates :amount, numericality: {greater_than_or_equal_to: 0.0}
+
+  after_initialize do
+    if new_record?
+      self.ready_ratio ||= BigDecimal.new('1.0')
+    end
+  end
 end

app/models/meal.rb

@@ -1,7 +1,8 @@
 class Meal < ActiveRecord::Base
   belongs_to :project, required: true
 
-  has_many :ingredients, as: :composition, dependent: :destroy, validate: true
+  has_many :ingredients, as: :composition, inverse_of: :composition, dependent: :destroy,
+    validate: true
   has_many :foods, through: :ingredients
   validates :ingredients, presence: true
   accepts_nested_attributes_for :ingredients, allow_destroy: true, reject_if: proc { |attrs|

app/views/meals/_form.html.erb

@@ -10,10 +10,11 @@
               <p>
               <%= ff.hidden_field :id %>
               <%= ff.hidden_field :food_id, {class: "autocomplete-value"} %>
-              <%= label_tag :food_name, index > 0 ? '' : t(:field_ingredients) %>
+              <%= label_tag :food_name do %>
+                <%= index > 0 ? '' : t(:field_ingredients) %><span class="required"> *</span>
+              <% end %>
               <%= text_field_tag :food_name, nil, {class: "autocomplete autocomplete-label",
-                                                   style: "width: 80%;",
-                                                   required: true} %>
+                                                   style: "width: 80%;"} %>
               <%= ff.number_field :amount, {style: "width: 8%", step: :any, label: ''} %>
               <%= i.food.ref_unit.shortname if i.food %>
               <%= ff.hidden_field :_destroy %>
@@ -69,6 +70,7 @@
     new_row.find('label:first').hide();
     form.find('tr.ingredient:visible a.icon-del').show();
     autocompleteFood(new_row);
+    new_row.find('input:visible:first').focus();
   }
 
   function deleteIngredient() {

app/views/meals/create.js.erb

@@ -0,0 +1,2 @@
+$('#new-meal').empty();
+$('#meals').html('<%= j render partial: 'meals/index' %>');

app/views/meals/new.js.erb

@@ -1,2 +1,2 @@
-$('#new-meal')
-  .html('<%= j render partial: 'meals/new_form' %>');
+$('#new-meal').html('<%= j render partial: 'meals/new_form' %>');
+$('#food_name').focus();