search optimization broken by tags

products/factories.py

@@ -25,7 +25,7 @@ class ProductFactory(DjangoModelFactory):
     update_date = FuzzyDateTime(start_dt=timezone.now())
     discount = FuzzyDecimal(low=0.00, high=100.00)
     stock = FuzzyInteger(low=0)
-    tags = ['test-tag']
+    tags = ['test']
     category = 'top-category' # main tag category
     attributes = ['programming/python', 'testing']
     identifiers = FuzzyText(prefix='IDENTIFIERS_', length=100)

products/tests.py

@@ -380,6 +380,7 @@ class ProductSearchTest(TestCase):
     def test_anon_user_can_search(self):
         self.factory(description="zapatos")
         self.factory(tags="rojos")
+        # self.factory(tags="azul")
 
         query_string = quote("zapatos rojos")
 
@@ -390,7 +391,8 @@ class ProductSearchTest(TestCase):
         # check re sponse
         self.assertEqual(response.status_code, 200)
         # check for object creation
-        self.assertEquals(2, self.model.objects.count())
+        data = json.loads(response.data)
+        self.assertEquals(len(data), self.model.objects.count())
 
 
 class MyProductsViewTest(APITestCase):

products/views.py

@@ -2,6 +2,7 @@ import logging
 import csv
 import datetime
 import operator
+from functools import reduce
 
 from django.shortcuts import render
 from django.conf import settings
@@ -142,18 +143,29 @@ def product_search(request):
             result_set = set()
             # split query string into single words
             chunks = query_string.split(' ')
-            # create search queries
-            name_search = Q(name__in=chunks)
-            description_search = Q(description__in=chunks)
-            tags_search = Q(tags__in=chunks)
-            category_search = Q(category__in=chunks)
-            attributes_search = Q(attributes__in=chunks)
-            query_list = [name_search, description_search, tags_search, category_search, attributes_search]
-            # get instances
-            products = Product.objects.filter(reduce(operator.or_, query_list))
-            # add to set
+
+            for chunk in chunks:
+                  # search in name
+                  products = Product.objects.filter(name=chunk)
                   for item in products:
                         result_set.add(item)
+                  # search in description
+                  products = Product.objects.filter(description=chunk)
+                  for item in products:
+                        result_set.add(item)
+                  # search in tags
+                  products = Product.objects.filter(tags=chunk)
+                  for item in products:
+                        result_set.add(item)
+                  # search in category
+                  products = Product.objects.filter(category=chunk)
+                  for item in products:
+                        result_set.add(item)
+                  # search in attributes
+                  products = Product.objects.filter(attributes=chunk)
+                  for item in products:
+                        result_set.add(item)
+
             # serialize and respond
             data = serializers.serialize('json', result_set)
             return Response(data=data)