Add iexact api filter to charfields

Author: hipek8

src/ralph/api/filters.py

@@ -170,14 +170,15 @@ class LookupFilterBackend(BaseFilterBackend):
             "isnull",
         },
         models.CharField: {
+            "iexact",
             "ne",
             "startswith",
             "istartswith",
             "endswith",
-            "icontains",
+            "iendswith",
             "contains",
+            "icontains",
             "in",
-            "iendswith",
             "isnull",
             "regex",
             "iregex",

src/ralph/assets/tests/test_api.py

@@ -915,6 +915,14 @@ def test_filter_by_hostname(self):
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(response.data["count"], 1)
 
+    def test_filter_by_hostname_case_insensitive(self):
+        url = "{}?{}".format(
+            reverse("dchost-list"), urlencode({"hostname__iexact": "AAAA"})
+        )
+        response = self.client.get(url, format="json")
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        self.assertEqual(response.data["count"], 1)
+
     def test_filter_by_name(self):
         url = "{}?{}".format(reverse("dchost-list"), urlencode({"name": "aaaa"}))
         response = self.client.get(url, format="json")