Add child Quantity action added

app/controllers/quantities_controller.rb

@@ -3,7 +3,8 @@ class QuantitiesController < ApplicationController
 
   before_action :init_session_filters
   before_action :find_project_by_project_id, only: [:index, :new, :create, :filter, :parents]
-  before_action :find_quantity, only: [:edit, :update, :destroy, :move]
+  before_action :find_quantity, only: [:edit, :update, :destroy, :move,
+                                       :new_child, :create_child]
   before_action :authorize
 
   def index
@@ -75,6 +76,24 @@ class QuantitiesController < ApplicationController
     render :index
   end
 
+  def new_child
+    @parent_quantity = @quantity
+    @quantity = @project.quantities.new
+    @quantity.domain = @parent_quantity.domain
+    @quantity.parent = @parent_quantity
+    @quantity.build_formula
+  end
+
+  def create_child
+    @quantity = @project.quantities.new(quantity_params)
+    if @quantity.save
+      flash[:notice] = 'Created new quantity'
+      prepare_quantities
+    else
+      render :new_child
+    end
+  end
+
   private
 
   def init_session_filters

app/views/quantities/_index.html.erb

@@ -46,6 +46,10 @@
           <td class="description"><%= q.description %></td>
           <td class="formula"><%= checked_image q.formula %></td>
           <td class="action unwrappable">
+            <%= link_to l(:button_child), new_child_quantity_path(q), {
+              remote: true,
+              class: "icon icon-add"
+            } %>
             <%= link_to l(:button_edit), edit_quantity_path(q), {
               remote: true,
               class: "icon icon-edit"

app/views/quantities/_new_child_form.html.erb

@@ -0,0 +1,15 @@
+<%= labelled_form_for @quantity,
+  url: create_child_quantity_path(@parent_quantity),
+  remote: true,
+  html: {id: 'new-child-form', name: 'new-child-form'} do |f| %>
+
+  <%= render partial: 'quantities/form', locals: {f: f} %>
+
+  <div class="tabular">
+    <p>
+      <%= submit_tag l(:button_create) %>
+      <%= link_to l(:button_cancel), "#",
+        onclick: '$(this).closest("tr").remove(); return false;' %>
+    </p>
+  </div>
+<% end %>

app/views/quantities/create_child.js.erb

@@ -0,0 +1,2 @@
+<%= render partial: 'body_trackers/flash' %>
+$('#quantities').html('<%= j render partial: 'quantities/index' %>');

app/views/quantities/new_child.js.erb

@@ -0,0 +1,8 @@
+<%= render partial: 'body_trackers/flash' %>
+$('tr[id=quantity-<%= @parent_quantity.id %>]').nextUntil('tr.quantity').remove();
+var columns = $('table > thead > tr > th').length;
+$('tr[id=quantity-<%= @parent_quantity.id %>]').nextAll('tr.quantity').first().before(
+  '<tr><td class="form" colspan="'+columns+'">' +
+  '<div id="new-child-quantity"><%= j render partial: "quantities/new_child_form" %></div>' +
+  '</td></tr>'
+);