Preorder: Creates preorder stockchange records, and transactions get has_preorder flag

db/mappings/order.js

@@ -23,7 +23,10 @@ module.exports = [{
     'item_total_price',
     'coupon_effective_discount',
     'shipping_price',
-    'tax_price'
+    'tax_price',
+    'has_preorder',
+    'preorder_fulfill_date',
+    'preorder_ready_to_ship'
   ],
   associations: [
     {name: 'cart', mapId: 'cartMap', columnPrefix: 'cart_'},

db/sql/2-views.sql

@@ -132,6 +132,9 @@ create or replace view sos.v_order as
         + case when (coupon_free_shipping != true) then transaction_shipping_price else 0 end
         + coalesce(transaction_tax_price, 0)
     ) as transaction_computed_price,
+    (case when stockchange_type = 'preorder' then true else false end) as transaction_has_preorder,
+    stockchange_preorder_estimated_fulfill_date as transaction_preorder_fulfill_date,
+    stockchange_preorder_ready_to_ship as transaction_preorder_ready_to_ship,
     "coupon".*,
     "address".*,
     v_transaction_paid.transaction_amount_paid_cents,
@@ -145,7 +148,8 @@ create or replace view sos.v_order as
     left join sos.v_transaction_paid on "transaction".transaction_uuid = v_transaction_paid.transaction_uuid
     left join sos.v_payment on "transaction".transaction_uuid = payment_transaction_uuid
     left join sos.v_delivery on "order".order_delivery_uuid = delivery_uuid
-    left join sos.v_cart on cart_uuid = transaction_cart_uuid;
+    left join sos.v_cart on cart_uuid = transaction_cart_uuid
+   	left join sos.item_stockchange_preorder on stockchange_transaction_uuid  = transaction.transaction_uuid;
 
 create or replace view sos.v_config as
   select * from sos."config"

db/sql/3-functions.sql

@@ -986,7 +986,9 @@ declare
   _item_uuids uuid[];
   _cart_uuid uuid;
   _item_uuid uuid;
-  _item_count integer;
+  _cart_item_count integer;
+  _available_item_count integer;
+  _item_availability_date timestamptz;
   _stockchange_uuid uuid;
 begin
   -- Get cart uuid (and check completed)
@@ -1009,31 +1011,65 @@ begin
 
   -- Make stock-change record for each item
   foreach _item_uuid in array _item_uuids loop
-    select cart_item_count into _item_count from sos."cart_item"
+    -- Get cart and item info
+    select cart_item_count into _cart_item_count from sos."cart_item"
       where cart_item_cart_uuid = _cart_uuid
         and cart_item_item_uuid = _item_uuid;
 
-    insert into sos."item_stockchange" (
-      stockchange_type,
-      stockchange_item_uuid,
-      stockchange_change,
-      stockchange_direction
-    ) values (
-      'purchase',
-      _item_uuid,
-      _item_count,
-      'subtracted'
-    ) returning stockchange_uuid into _stockchange_uuid;
-
-    insert into sos."item_stockchange_purchase" (
-      stockchange_uuid,
-      stockchange_type,
-      stockchange_transaction_uuid
-    ) values (
-      _stockchange_uuid,
-      'purchase',
-      _transaction_uuid
-    );
+    select
+      item_number_in_stock, item_preorder_availability_date
+      into _available_item_count, _item_availability_date
+    from sos.v_item
+      where item_uuid = _item_uuid;
+
+    -- Pre-order stockchange
+    if _cart_item_count > _available_item_count and _item_availability_date is not null then
+      insert into sos."item_stockchange" (
+        stockchange_type,
+        stockchange_item_uuid,
+        stockchange_change,
+        stockchange_direction
+      ) values (
+        'preorder',
+        _item_uuid,
+        _cart_item_count,
+        'subtracted'
+      ) returning stockchange_uuid into _stockchange_uuid;
+
+      insert into sos."item_stockchange_preorder" (
+        stockchange_uuid,
+        stockchange_type,
+        stockchange_transaction_uuid,
+        stockchange_preorder_estimated_fulfill_date
+      ) values (
+        _stockchange_uuid,
+        'preorder',
+        _transaction_uuid,
+        _item_availability_date
+      );
+    else -- Non-preorder stockchange
+      insert into sos."item_stockchange" (
+        stockchange_type,
+        stockchange_item_uuid,
+        stockchange_change,
+        stockchange_direction
+      ) values (
+        'purchase',
+        _item_uuid,
+        _cart_item_count,
+        'subtracted'
+      ) returning stockchange_uuid into _stockchange_uuid;
+
+      insert into sos."item_stockchange_purchase" (
+        stockchange_uuid,
+        stockchange_type,
+        stockchange_transaction_uuid
+      ) values (
+        _stockchange_uuid,
+        'purchase',
+        _transaction_uuid
+      );
+    end if;
   end loop;
 
   return query select * from sos.v_item where item_uuid = any(_item_uuids);