Add way to customize product autocomplete for new custorder

tailbone/templates/custorders/create.mako

@@ -207,7 +207,7 @@
                                v-model="productUUID"
                                :assigned-value="productUUID"
                                :assigned-label="productDisplay"
-                               serviceUrl="${url('products.autocomplete')}"
+                               serviceUrl="${product_autocomplete_url}"
                                @input="productChanged">
                             </tailbone-autocomplete>
                           </b-field>

tailbone/views/custorders/orders.py

@@ -123,6 +123,11 @@ class CustomerOrderView(MasterView):
         url = self.request.route_url('people.view', uuid=person.uuid)
         return tags.link_to(text, url)
 
+    def get_batch_handler(self):
+        return get_batch_handler(
+            self.rattail_config, 'custorder',
+            default='rattail.batch.custorder:CustomerOrderBatchHandler')
+
     def create(self, form=None, template='create'):
         """
         View for creating a new customer order.  Note that it does so by way of
@@ -130,10 +135,7 @@ class CustomerOrderView(MasterView):
         submits the order, at which point the batch is converted to a proper
         order.
         """
-        self.handler = get_batch_handler(
+        self.handler = self.get_batch_handler()
-            self.rattail_config, 'custorder',
-            default='rattail.batch.custorder:CustomerOrderBatchHandler')
-
         batch = self.get_current_batch()
 
         if self.request.method == 'POST':
@@ -166,9 +168,17 @@ class CustomerOrderView(MasterView):
 
         items = [self.normalize_row(row)
                  for row in batch.active_rows()]
+
+        if self.handler.has_custom_product_autocomplete:
+            route_prefix = self.get_route_prefix()
+            autocomplete = '{}.product_autocomplete'.format(route_prefix)
+        else:
+            autocomplete = 'products.autocomplete'
+
         context = {'batch': batch,
                    'normalized_batch': self.normalize_batch(batch),
-                   'order_items': items}
+                   'order_items': items,
+                   'product_autocomplete_url': self.request.route_url(autocomplete)}
         return self.render_to_response(template, context)
 
     def get_current_batch(self):
@@ -258,6 +268,15 @@ class CustomerOrderView(MasterView):
         self.Session.flush()
         return {'success': True}
 
+    def product_autocomplete(self):
+        """
+        Custom product autocomplete logic, which invokes the handler.
+        """
+        self.handler = self.get_batch_handler()
+        term = self.request.GET['term']
+        return self.handler.custom_product_autocomplete(self.Session(), term,
+                                                        user=self.request.user)
+
     def find_product_by_upc(self, batch, data):
         upc = data.get('upc')
         if not upc:
@@ -489,6 +508,26 @@ class CustomerOrderView(MasterView):
     def execute_new_order_batch(self, batch, data):
         return self.handler.do_execute(batch, self.request.user)
 
+    @classmethod
+    def defaults(cls, config):
+        cls._order_defaults(config)
+        cls._defaults(config)
+
+    @classmethod
+    def _order_defaults(cls, config):
+        route_prefix = cls.get_route_prefix()
+        url_prefix = cls.get_url_prefix()
+
+        # custom product autocomplete
+        config.add_route('{}.product_autocomplete'.format(route_prefix),
+                         '{}/product-autocomplete'.format(url_prefix),
+                         request_method='GET')
+        config.add_view(cls, attr='product_autocomplete',
+                        route_name='{}.product_autocomplete'.format(route_prefix),
+                        renderer='json',
+                        permission='products.list')
+
+
 # TODO: deprecate / remove this
 CustomerOrdersView = CustomerOrderView