Add products autocomplete view.

tailbone/views/products.py

@@ -2,7 +2,7 @@
 ################################################################################
 #
 #  Rattail -- Retail Software Framework
-#  Copyright © 2010-2014 Lance Edgar
+#  Copyright © 2010-2015 Lance Edgar
 #
 #  This file is part of Rattail.
 #
@@ -29,6 +29,7 @@ from __future__ import unicode_literals
 import os
 import re
 
+from sqlalchemy import orm
 from sqlalchemy import and_
 from sqlalchemy.orm import joinedload, aliased
 
@@ -52,7 +53,7 @@ from rattail.db.api import get_product_by_upc
 from rattail.db.util import configure_session
 from rattail.pod import get_image_url, get_image_path
 
-from tailbone.views import SearchableAlchemyGridView, CrudView
+from tailbone.views import SearchableAlchemyGridView, CrudView, AutocompleteView
 from tailbone.views.continuum import VersionView, version_defaults
 from tailbone.forms import EnumFieldRenderer, DateTimeFieldRenderer
 from tailbone.db import Session
@@ -344,6 +345,27 @@ class ProductVersionView(VersionView):
         return super(ProductVersionView, self).details()
 
 
+class ProductsAutocomplete(AutocompleteView):
+    """
+    Autocomplete view for products.
+    """
+    mapped_class = model.Product
+    fieldname = 'description'
+
+    def query(self, term):
+        q = Session.query(model.Product).outerjoin(model.Brand)
+        q = q.filter(or_(
+                model.Brand.name.ilike('%{0}%'.format(term)),
+                model.Product.description.ilike('%{0}%'.format(term))))
+        if not self.request.has_perm('products.view_deleted'):
+            q = q.filter(model.Product.deleted == False)
+        q = q.order_by(model.Brand.name, model.Product.description)
+        q = q.options(orm.joinedload(model.Product.brand))
+        return q
+
+    def display(self, product):
+        return product.full_description
+
 
 def products_search(request):
     """
@@ -470,6 +492,7 @@ class CreateProductsBatch(ProductsGrid):
 
 def add_routes(config):
     config.add_route('products', '/products')
+    config.add_route('products.autocomplete', '/products/autocomplete')
     config.add_route('products.search', '/products/search')
     config.add_route('products.print_labels', '/products/labels')
     config.add_route('products.create_batch', '/products/batch')
@@ -485,6 +508,11 @@ def includeme(config):
     config.add_view(ProductsGrid, route_name='products',
                     renderer='/products/index.mako',
                     permission='products.list')
+
+    config.add_view(ProductsAutocomplete, route_name='products.autocomplete',
+                    renderer='json',
+                    permission='products.list')
+
     config.add_view(print_labels, route_name='products.print_labels',
                     renderer='json', permission='products.print_labels')
     config.add_view(CreateProductsBatch, route_name='products.create_batch',