perf: 优化自定义 platform field

apps/common/serializers/dynamic.py

@@ -44,19 +44,21 @@ def set_default_by_type(tp, data, field_info):
 
 def create_serializer_class(serializer_name, fields_info):
     serializer_fields = {}
-    fields_name = ['name', 'label', 'default', 'type', 'help_text']
+    fields_name = ['name', 'label', 'default', 'required', 'type', 'help_text']
 
     for i, field_info in enumerate(fields_info):
         data = {k: field_info.get(k) for k in fields_name}
         field_type = data.pop('type', 'str')
 
-        if data.get('default') is None:
+        # 用户定义 default 和 required 可能会冲突, 所以要处理一下
+        default = data.get('default', '')
+        if default not in ['', None]:
+            data['required'] = False
+        else:
             data.pop('default', None)
-            data['required'] = field_info.get('required', True)
+            data['required'] = True
         data = set_default_by_type(field_type, data, field_info)
         data = set_default_if_need(data, i)
-        if data.get('default', None) is not None:
-            data['required'] = False
         field_name = data.pop('name')
         field_class = type_field_map.get(field_type, serializers.CharField)
         serializer_fields[field_name] = field_class(**data)