feat: add exclude content filter

mycarehub/content/filters.py

@@ -72,6 +72,22 @@ def filter_queryset(self, request, queryset, view):
         return queryset.distinct()
 
 
+class ContentFilter(BaseFilterBackend):
+    """
+    This filter excludes the content item given while returning all content
+    available on CMS.
+    """
+
+    def filter_queryset(self, request, queryset, view):
+        query_params = request.query_params
+        exclude_content = query_params.get("exclude_content", "")
+
+        if exclude_content and queryset.model is ContentItem:
+            queryset = queryset.exclude(id=exclude_content)
+
+        return queryset
+
+
 class ClientFilter(BaseFilterBackend):
     """
     Implements the client_id filter which returns only pages that a specific client can view

mycarehub/content/tests/test_filters.py

@@ -323,3 +323,18 @@ def test_sms_content_item_tag_snippet_filter(sms_category, request_with_user, cl
     url = reverse("wagtailsnippets_content_smscontentitemtag:list")
     response = client.get(url)
     assert response.status_code == status.HTTP_200_OK
+
+
+def test_content_filter_exclude_content(
+    content_item_with_tag_and_category, request_with_user, client
+):
+    """Test exclude content item filter."""
+    url = (
+        reverse("wagtailapi:pages:listing") + f"?type=content.ContentItem"
+        f"&fields=*&exclude_content={content_item_with_tag_and_category.id}"
+    )
+    client.force_login(request_with_user.user)
+    response = client.get(url)
+    assert response.status_code == status.HTTP_200_OK
+    response_data = response.json()
+    assert response_data["meta"]["total_count"] == 0

mycarehub/content/views/views.py

@@ -14,6 +14,7 @@
 from mycarehub.content.filters import (
     CategoryFilter,
     ClientFilter,
+    ContentFilter,
     ContentItemCategoryFilter,
     ContentSequenceFilter,
     FacilityFilter,
@@ -33,6 +34,7 @@ class CustomPageAPIViewset(PagesAPIViewSet):
         ContentSequenceFilter,
         FacilityFilter,
         CategoryFilter,
+        ContentFilter,
         FieldsFilter,
         ChildOfFilter,
         AncestorOfFilter,
@@ -53,6 +55,7 @@ class CustomPageAPIViewset(PagesAPIViewSet):
             "client_id",
             "facility_id",
             "exclude_category",
+            "exclude_content",
         ]
     )