Removed Cart table, its dependency on spree orders table and removed some more dead code related to this

app/controllers/spree/orders_controller_decorator.rb

@@ -202,20 +202,6 @@ Spree::OrdersController.class_eval do
     end
   end
 
-  def populate_cart hash
-    if spree_current_user
-      unless spree_current_user.cart
-        spree_current_user.build_cart
-        cart = Cart.create(user: spree_current_user)
-        spree_current_user.cart = cart
-        spree_current_user.save
-      end
-      distributor = Enterprise.find(hash[:distributor_id])
-      order_cycle = OrderCycle.find(hash[:order_cycle_id]) if hash[:order_cycle_id]
-      spree_current_user.cart.add_variant hash[:variants].keys.first, hash[:variants].values.first, distributor, order_cycle, current_currency
-    end
-  end
-
   # Rails to_json encodes Float::INFINITY as Infinity, which is not valid JSON
   # Return it as a large integer (max 32 bit signed int)
   def wrap_json_infinity(n)

app/models/spree/order_decorator.rb

@@ -10,7 +10,6 @@ end
 Spree::Order.class_eval do
   belongs_to :order_cycle
   belongs_to :distributor, class_name: 'Enterprise'
-  belongs_to :cart
   belongs_to :customer
   has_one :proxy_order
   has_one :subscription, through: :proxy_order

app/models/spree/user_decorator.rb

@@ -9,7 +9,6 @@ Spree.user_class.class_eval do
   has_many :owned_groups, class_name: 'EnterpriseGroup', foreign_key: :owner_id, inverse_of: :owner
   has_many :account_invoices
   has_many :billable_periods, foreign_key: :owner_id, inverse_of: :owner
-  has_one :cart
   has_many :customers
   has_many :credit_cards
 

db/migrate/20180812214434_drop_carts.rb

@@ -0,0 +1,7 @@
+class DropCarts < ActiveRecord::Migration
+  def change
+    remove_foreign_key :spree_orders, column: :cart_id
+    remove_column :spree_orders, :cart_id
+    drop_table :carts
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20180510083800) do
+ActiveRecord::Schema.define(:version => 20180812214434) do
 
   create_table "account_invoices", :force => true do |t|
     t.integer  "user_id",    :null => false
@@ -53,12 +53,6 @@ ActiveRecord::Schema.define(:version => 20180510083800) do
 
   add_index "billable_periods", ["account_invoice_id"], :name => "index_billable_periods_on_account_invoice_id"
 
-  create_table "carts", :force => true do |t|
-    t.integer "user_id"
-  end
-
-  add_index "carts", ["user_id"], :name => "index_carts_on_user_id"
-
   create_table "column_preferences", :force => true do |t|
     t.integer  "user_id",     :null => false
     t.string   "action_name", :null => false
@@ -621,7 +615,6 @@ ActiveRecord::Schema.define(:version => 20180510083800) do
     t.integer  "order_cycle_id"
     t.string   "currency"
     t.string   "last_ip_address"
-    t.integer  "cart_id"
     t.integer  "customer_id"
   end
 
@@ -1203,8 +1196,6 @@ ActiveRecord::Schema.define(:version => 20180510083800) do
   add_foreign_key "billable_periods", "enterprises", name: "bill_items_enterprise_id_fk"
   add_foreign_key "billable_periods", "spree_users", name: "bill_items_owner_id_fk", column: "owner_id"
 
-  add_foreign_key "carts", "spree_users", name: "carts_user_id_fk", column: "user_id"
-
   add_foreign_key "coordinator_fees", "enterprise_fees", name: "coordinator_fees_enterprise_fee_id_fk"
   add_foreign_key "coordinator_fees", "order_cycles", name: "coordinator_fees_order_cycle_id_fk"
 
@@ -1285,7 +1276,6 @@ ActiveRecord::Schema.define(:version => 20180510083800) do
   add_foreign_key "spree_option_values_variants", "spree_option_values", name: "spree_option_values_variants_option_value_id_fk", column: "option_value_id"
   add_foreign_key "spree_option_values_variants", "spree_variants", name: "spree_option_values_variants_variant_id_fk", column: "variant_id"
 
-  add_foreign_key "spree_orders", "carts", name: "spree_orders_cart_id_fk"
   add_foreign_key "spree_orders", "customers", name: "spree_orders_customer_id_fk"
   add_foreign_key "spree_orders", "enterprises", name: "spree_orders_distributor_id_fk", column: "distributor_id"
   add_foreign_key "spree_orders", "order_cycles", name: "spree_orders_order_cycle_id_fk"