Fix for json() failing on photos in projects, #999 (#1039)

osxphotos/albuminfo.py

@@ -386,7 +386,25 @@ class ProjectInfo(AlbumInfo):
     Projects are cards, calendars, slideshows, etc.
     """
 
-    ...
+    @property
+    def folder_names(self):
+        """Return hierarchical list of folders the album is contained in
+        the folder list is in form:
+        ["Top level folder", "sub folder 1", "sub folder 2", ...]
+        or empty list if album is not in any folders
+        """
+
+        # projects are not in folders
+        return []
+
+    @property
+    def folder_list(self):
+        """Returns list of FolderInfo objects for each folder the album is contained in
+        or empty list if album is not in any folders
+        """
+
+        # projects are not in folders
+        return []
 
 
 class FolderInfo:

tests/test_projects_catalina.py

@@ -149,3 +149,11 @@ def test_photoinfo_project_info(photosdb, uuid, expected_projects):
 
     project_names = [p.title for p in photo.project_info]
     assert sorted(project_names) == sorted(expected_projects)
+
+
+@pytest.mark.parametrize("uuid,expected_projects", PHOTO_PROJECTS.items())
+def test_photoinfo_project_info_asdict(photosdb, uuid, expected_projects):
+    """Test PhotoInfo.project_info.asdict() #999"""
+    photo = photosdb.get_photo(uuid)
+    for p in photo.project_info:
+        assert p.asdict()