Merge pull request #106 from Wormfriend/fix_issue_86

Fix issue #86 and issue #103 combined

flask_accepts/utils.py

@@ -17,6 +17,14 @@ def unpack_nested(val, api, model_name: str = None, operation: str = "dump"):
         return unpack_nested_self(val, api, model_name, operation)
 
     model_name = get_default_model_name(val.nested)
+
+    if val.many:
+        return fr.List(
+            fr.Nested(
+                map_type(val.nested, api, model_name, operation), **_ma_field_to_fr_field(val)
+        )
+    )
+
     return fr.Nested(
         map_type(val.nested, api, model_name, operation), **_ma_field_to_fr_field(val)
     )
@@ -160,7 +168,7 @@ def get_default_model_name(schema: Optional[Union[Schema, Type[Schema]]] = None)
 def _ma_field_to_fr_field(value: ma.Field) -> dict:
     fr_field_parameters = {}
 
-    if hasattr(value, "default"):
+    if hasattr(value, "default") and type(value.default) != ma.utils._Missing:
         fr_field_parameters["example"] = value.default
 
     if hasattr(value, "required"):

flask_accepts/utils_test.py

@@ -47,6 +47,24 @@ class IntegerSchema(Schema):
     assert result
 
 
+def test_unpack_nested_many():
+    app = Flask(__name__)
+    api = Api(app)
+
+    class NestedSchema(Schema):
+        my_string = ma.String()
+
+    class IntegerSchema(Schema):
+        my_int = ma.Integer()
+        children = ma.Nested(NestedSchema, many=True)
+
+    schema = IntegerSchema()
+
+    result = utils.unpack_nested(schema.fields.get("children"), api=api)
+
+    assert type(result) == fr.List
+
+
 def test_unpack_nested_self():
     app = Flask(__name__)
     api = Api(app)