Move promotion JS from backend to legacy_promotions

This moves those templates, views, and JS files that are necessary for
the promotion admin to function to the legacy_promotions gem.

backend/app/assets/javascripts/spree/backend.js

@@ -50,8 +50,6 @@
 //= require spree/backend/products/index
 //= require spree/backend/product_picker
 //= require spree/backend/progress
-//= require spree/backend/promotions
-//= require spree/backend/promotions/activation
 //= require spree/backend/shipments
 //= require spree/backend/spree-select2
 //= require spree/backend/stock_management

backend/app/assets/javascripts/spree/backend/namespaces.js

@@ -9,7 +9,6 @@ _.extend(window.Spree, {
     Zones: {},
     Payment: {},
     Product: {},
-    Promotions: {},
     Stock: {},
     Tables: {}
   }

backend/app/assets/javascripts/spree/backend/templates/index.js

@@ -8,9 +8,6 @@
 //= require spree/backend/templates/orders/shipping_method
 //= require spree/backend/templates/products/sortable
 //= require spree/backend/templates/products/upload_progress
-//= require spree/backend/templates/promotions/calculators/fields/tiered_flat_rate
-//= require spree/backend/templates/promotions/calculators/fields/tiered_percent
-//= require spree/backend/templates/promotions/rules/option_values
 //= require spree/backend/templates/stock_items/stock_location_stock_item
 //= require spree/backend/templates/taxons/_tree
 //= require spree/backend/templates/taxons/tree

backend/app/assets/javascripts/spree/backend/views/index.js

@@ -1,4 +1,3 @@
-//= require 'spree/backend/views/calculators/tiered'
 //= require 'spree/backend/views/cart/add_line_item_button'
 //= require 'spree/backend/views/cart/empty_cart_button'
 //= require 'spree/backend/views/cart/line_item_row'
@@ -22,7 +21,6 @@
 //= require 'spree/backend/views/payment/payment_row'
 //= require 'spree/backend/views/payment/edit_credit_card'
 //= require 'spree/backend/views/product/search'
-//= require 'spree/backend/views/promotions/option_values_rule'
 //= require 'spree/backend/views/tables/editable_table'
 //= require 'spree/backend/views/tables/editable_table_row'
 //= require 'spree/backend/views/tables/return_items'

legacy_promotions/app/assets/config/solidus_legacy_promotions/manifest.js

@@ -1 +1,2 @@
 //= link solidus_legacy_promotions/promotions.css
+//= link spree/backend/edit_promotion.js

legacy_promotions/app/assets/javascripts/spree/backend/edit_promotion.js

@@ -0,0 +1,7 @@
+//= require_tree ./templates
+//= require spree/backend/views/promotions.js
+//= require spree/backend/views/number_with_currency.js
+//= require spree/backend/views/promotions/option_values_rule
+//= require spree/backend/views/calculators/tiered
+//= require spree/backend/promotions
+//= require spree/backend/promotions/activation

legacy_promotions/app/assets/javascripts/spree/backend/views/promotions.js

@@ -0,0 +1,3 @@
+//= require spree/backend/namespaces.js
+
+window.Spree.Views.Promotions = {}

legacy_promotions/app/views/spree/admin/promotions/edit.html.erb

@@ -19,6 +19,7 @@
 
 <% content_for :head  do %>
   <%= stylesheet_link_tag 'solidus_legacy_promotions/promotions' %>
+  <%= javascript_include_tag 'spree/backend/edit_promotion' %>
 <% end %>
 
 <%= form_for @promotion, url: object_url, method: :put do |f| %>

legacy_promotions/app/views/spree/admin/promotions/new.html.erb

@@ -3,6 +3,11 @@
 <% admin_breadcrumb(link_to plural_resource_name(Spree::Promotion), spree.admin_promotions_path) %>
 <% admin_breadcrumb(t('spree.new_promotion')) %>
 
+<% content_for :head  do %>
+  <%= stylesheet_link_tag 'solidus_legacy_promotions/promotions' %>
+  <%= javascript_include_tag 'spree/backend/edit_promotion' %>
+<% end %>
+
 <%= form_for @promotion, url: collection_url do |f| %>
   <%= render partial: 'form', locals: { f: f } %>
   <%= render partial: 'spree/admin/shared/new_resource_links' %>