Recursive complex filtering #181

example/api/src/model/post_query.py

@@ -2,12 +2,15 @@ from cpl.graphql.schema.filter.filter import Filter
 from cpl.graphql.schema.graph_type import GraphType
 from cpl.graphql.schema.sort.sort import Sort
 from cpl.graphql.schema.sort.sort_order import SortOrder
+from model.author_dao import AuthorDao
+from model.author_query import AuthorGraphType, AuthorFilter
 from model.post import Post
 
 class PostFilter(Filter[Post]):
     def __init__(self):
         Filter.__init__(self)
         self.int_field("id")
+        self.filter_field("author", AuthorFilter)
         self.string_field("title")
         self.string_field("content")
 
@@ -20,13 +23,22 @@ class PostSort(Sort[Post]):
 
 class PostGraphType(GraphType[Post]):
 
-    def __init__(self):
+    def __init__(self, authors: AuthorDao):
         GraphType.__init__(self)
 
         self.int_field(
             "id",
             resolver=lambda root: root.id,
         )
+
+        async def _a(root: Post):
+            return await authors.get_by_id(root.author_id)
+
+        self.object_field(
+            "author",
+            AuthorGraphType,
+            resolver=_a#lambda root: root.author_id,
+        )
         self.string_field(
             "title",
             resolver=lambda root: root.title,