Enable subproject filters for projects with subprojects (#11674)

* Enable subproject filters for projects with subprojects

This at least shows the UI element if it makes sense to show.
Currently there's no way without knowing the query syntax to get subprojects,
which has caused confusion for a few of our users and broke existing behavior.

Refs #11638

* Also show on subprojects

* Update to support subprojects having the right filter

* Fix tests

* Apply suggestions from code review

Co-authored-by: Manuel Kaufmann <[email protected]>

* Check for version

---------

Co-authored-by: Manuel Kaufmann <[email protected]>

Author: ericholscher

readthedocs/proxito/tests/test_hosting.py

@@ -736,7 +736,7 @@ def test_number_of_queries_project_version_slug(self):
                 active=True,
             )
 
-        with self.assertNumQueries(22):
+        with self.assertNumQueries(24):
             r = self.client.get(
                 reverse("proxito_readthedocs_docs_addons"),
                 {
@@ -765,7 +765,7 @@ def test_number_of_queries_url(self):
                 active=True,
             )
 
-        with self.assertNumQueries(24):
+        with self.assertNumQueries(26):
             r = self.client.get(
                 reverse("proxito_readthedocs_docs_addons"),
                 {
@@ -801,7 +801,7 @@ def test_number_of_queries_url_subproject(self):
                 active=True,
             )
 
-        with self.assertNumQueries(31):
+        with self.assertNumQueries(35):
             r = self.client.get(
                 reverse("proxito_readthedocs_docs_addons"),
                 {
@@ -827,7 +827,7 @@ def test_number_of_queries_url_translations(self):
                 language=language,
             )
 
-        with self.assertNumQueries(60):
+        with self.assertNumQueries(62):
             r = self.client.get(
                 reverse("proxito_readthedocs_docs_addons"),
                 {

readthedocs/proxito/views/hosting.py

@@ -493,9 +493,7 @@ def _v1(self, project, version, build, filename, url, request):
                         #     "Include subprojects",
                         #     f"subprojects:{project.slug}/{version.slug}",
                         # ],
-                    ]
-                    if version
-                    else [],
+                    ],
                     "default_filter": f"project:{project.slug}/{version.slug}"
                     if version
                     else None,
@@ -514,6 +512,28 @@ def _v1(self, project, version, build, filename, url, request):
             },
         }
 
+        # Show the subprojects filter on the parent project and subproject
+        if version:
+            # TODO: Remove these queries and try to find a way to get this data
+            # from the resolver, which has already done these queries.
+            # TODO: Replace this fixed filters with the work proposed in
+            # https://github.com/readthedocs/addons/issues/22
+            if project.subprojects.exists():
+                data["addons"]["search"]["filters"].append(
+                    [
+                        "Include subprojects",
+                        f"subprojects:{project.slug}/{version.slug}",
+                    ]
+                )
+            if project.superprojects.exists():
+                superproject = project.superprojects.first().parent
+                data["addons"]["search"]["filters"].append(
+                    [
+                        "Include subprojects",
+                        f"subprojects:{superproject.slug}/{version.slug}",
+                    ]
+                )
+
         # DocDiff depends on `url=` GET attribute.
         # This attribute allows us to know the exact filename where the request was made.
         # If we don't know the filename, we cannot return the data required by DocDiff to work.