fix: 修复导入导出文件时对于bool类型字段的判断问题

apps/common/drf/renders/base.py

@@ -73,7 +73,10 @@ class BaseFileRenderer(BaseRenderer):
             row = []
             for field in render_fields:
                 value = item.get(field.field_name)
-                value = str(value) if value else ''
+                if value is None:
+                    value = ''
+                else:
+                    value = str(value)
                 row.append(value)
             yield row