Move budget headings form partial to a component

This way it'll be easier to test it.

app/components/admin/budget_headings/form_component.html.erb

@@ -12,7 +12,7 @@
   <% end %>
 
   <div class="small-12 medium-6">
-    <% if @budget.show_money? %>
+    <% if budget.show_money? %>
       <%= f.text_field :price, maxlength: 8 %>
     <% else %>
       <%= f.hidden_field :price, value: 0 %>
@@ -41,7 +41,7 @@
   </div>
 
   <div class="clear">
-    <% if respond_to?(:single_heading?) && single_heading? %>
+    <% if single_heading? %>
       <%= f.submit t("admin.budgets_wizard.headings.continue"), class: "button success" %>
     <% else %>
       <%= f.submit t("admin.budget_headings.form.#{action}"), class: "button hollow" %>

app/components/admin/budget_headings/form_component.rb

@@ -0,0 +1,21 @@
+class Admin::BudgetHeadings::FormComponent < ApplicationComponent
+  include TranslatableFormHelper
+  include GlobalizeHelper
+  attr_reader :heading, :path, :action
+
+  def initialize(heading, path:, action:)
+    @heading = heading
+    @path = path
+    @action = action
+  end
+
+  private
+
+    def budget
+      heading.budget
+    end
+
+    def single_heading?
+      helpers.respond_to?(:single_heading?) && helpers.single_heading?
+    end
+end

app/components/admin/budgets_wizard/headings/creation_step_component.html.erb

@@ -1,3 +1,3 @@
 <%= render Admin::BudgetsWizard::CreationStepComponent.new(heading, next_step_path) do %>
-  <%= render "/admin/budget_headings/form", heading: heading, path: form_path, action: "create" %>
+  <%= render Admin::BudgetHeadings::FormComponent.new(heading, path: form_path, action: "create") %>
 <% end %>

app/components/admin/budgets_wizard/headings/edit_component.html.erb

@@ -4,4 +4,4 @@
 
 <%= render Admin::BudgetsWizard::CreationTimelineComponent.new("headings") %>
 
-<%= render "/admin/budget_headings/form", heading: heading, path: form_path, action: "submit" %>
+<%= render Admin::BudgetHeadings::FormComponent.new(heading, path: form_path, action: "submit") %>

app/views/admin/budget_headings/edit.html.erb

@@ -1,3 +1,7 @@
 <%= render "header", action: "edit" %>
 
-<%= render "form", heading: @heading, path: admin_budget_group_heading_path(@budget, @group, @heading), action: "submit" %>
+<%= render Admin::BudgetHeadings::FormComponent.new(
+  @heading,
+  path: admin_budget_group_heading_path(@budget, @group, @heading),
+  action: "submit"
+) %>

app/views/admin/budget_headings/new.html.erb

@@ -1,3 +1,7 @@
 <%= render "header", action: "create" %>
 
-<%= render "form", heading: @heading, path: admin_budget_group_headings_path(@budget, @group), action: "create" %>
+<%= render Admin::BudgetHeadings::FormComponent.new(
+  @heading,
+  path: admin_budget_group_headings_path(@budget, @group),
+  action: "create"
+) %>