🐛 Search does not include root parent

[AntoLC]

Bug Report

When we search documents that has children, it searches on the title field, but only of the descendant document.
The root document does not appear.

Request made:

Request URL:  https://docs.numerique.gouv.fr/api/v1.0/documents/[ROOT_ID]/descendants/?page=1&title=de&parent_id=[ROOT_ID]

docs/src/backend/core/api/viewsets.py

Lines 815 to 828 in 67a195f

	def descendants(self, request, *args, **kwargs):
	"""Handle listing descendants of a document"""
	document = self.get_object()
	queryset = document.get_descendants().filter(ancestors_deleted_at__isnull=True)
	queryset = self.filter_queryset(queryset)
	filterset = DocumentFilter(request.GET, queryset=queryset)
	if not filterset.is_valid():
	raise drf.exceptions.ValidationError(filterset.errors)
	queryset = filterset.qs
	return self.get_response_for_queryset(queryset)

Possible solution

Add root document in the descendants requests ?

def descendants(self, request, *args, **kwargs):
        """Handle listing descendants of a document"""
        document = self.get_object()

        # Get descendants
-       queryset = document.get_descendants().filter(ancestors_deleted_at__isnull=True)
+       descendants_queryset = document.get_descendants().filter(ancestors_deleted_at__isnull=True)
        
+       # Include the parent document itself in the queryset for search
+       # This allows searching within both the parent and its descendants
+       parent_queryset = self.queryset.filter(pk=document.pk)
+       queryset = descendants_queryset | parent_queryset
+     
        queryset = self.filter_queryset(queryset)

        filterset = DocumentFilter(request.GET, queryset=queryset)
        if not filterset.is_valid():
            raise drf.exceptions.ValidationError(filterset.errors)

        queryset = filterset.qs

        return self.get_response_for_queryset(queryset)