Improve handling of optional properties in model to_dict

Also bumped to 0.1.2

Author: dbanty

CHANGELOG.md

@@ -4,6 +4,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 0.1.2 - 2020-03-16
+- Improve handling of optional properties in generated `to_dict` function for models
+
 ## 0.1.1 - 2020-03-06
 - Fix mypy issue in generated models `from_dict` with datetime or reference properties
 - Generated clients now raise an `ApiResponseError` if they receive a response that was not declared

openapi_python_client/templates/model.pyi

@@ -18,8 +18,11 @@ class {{ schema.reference.class_name }}:
 
     def to_dict(self) -> Dict:
         return {
-            {% for property in schema.required_properties + schema.optional_properties %}
-            "{{ property.name }}": self.{{ property.transform() }} if self.{{ property.name }} else None,
+            {% for property in schema.required_properties %}
+            "{{ property.name }}": self.{{ property.transform() }},
+            {% endfor %}
+            {% for property in schema.optional_properties %}
+            "{{ property.name }}": self.{{ property.transform() }} if self.{{ property.name }} is not None else None,
             {% endfor %}
         }
 

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "openapi-python-client"
-version = "0.1.1"
+version = "0.1.2"
 description = "Generate modern Python clients from OpenAPI"
 
 authors = [