enable additionalProperties by default

Author: skarimo

.generator/src/generator/openapi.py

@@ -67,6 +67,10 @@ def basic_type_to_python(type_, schema, typing=False):
 def type_to_python(schema, typing=False):
     """Return Python type name for the type."""
 
+    # Special case for additionalProperties: True
+    if schema is True:
+        return basic_type_to_python(None, {}, typing=typing)
+
     name = formatter.get_name(schema)
 
     if "oneOf" in schema:

.generator/src/generator/templates/model_generic.j2

@@ -54,15 +54,16 @@ class {{ name }}(ModelNormal):
     }
 {%- endif %}
 
-{%- if model.get("additionalProperties", false) is not false %}
+{%- set additionalProperties = model.get("additionalProperties", false) %}
+{%- if additionalProperties is not false %}
     @cached_property
     def additional_properties_type(_):
 {%- if refs %}
 {%- for ref in refs %}
         from {{ package }}.{{ version }}.model.{{ ref|safe_snake_case }} import {{ ref }}
 {%- endfor %}
 {%- endif %}
-        return ({{ type_to_python(model["additionalProperties"]) }},)
+        return ({{ type_to_python(additionalProperties) }},)
 {%- endif %}
 
 {%- if model.nullable %}

.generator/src/generator/templates/model_utils.j2

@@ -397,7 +397,7 @@ class ModelNormal(OpenApiModel):
                 var_name not in self.attribute_map
                 and self._configuration is not None
                 and self._configuration.discard_unknown_keys
-                and self.additional_properties_type is None
+                and self.additional_properties_type is not None
             ):
                 if self._spec_property_naming:
                     # If it's returned from the API, store it if we need to send it back