django使用search_fields报错（in get_lookup_constraint）
FieldError at /api/workorder/order/
Related Field got invalid lookup: icontains| Request Method: | GET |
|---|---|
| Request URL: | http://127.0.0.1:8000/api/workorder/order/?search=1 |
| Django Version: | 2.0 |
| Exception Type: | FieldError |
| Exception Value: | Related Field got invalid lookup: icontains |
| Exception Location: | C:\Users\WM\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\models\sql\query.py in build_lookup, line 1075 |
| Python Executable: | C:\Users\WM\AppData\Local\Programs\Python\Python36\python.exe |
| Python Version: | 3.6.5 |
| Python Path: | ['F:\git_code\emergency_itil\EmergencyResponse', 'F:\git_code\emergency_itil\EmergencyResponse', 'E:\PyCharm 2019.1.1\helpers\pycharm_display', 'C:\Users\WM\AppData\Local\Programs\Python\Python36\python36.zip', 'C:\Users\WM\AppData\Local\Programs\Python\Python36\DLLs', 'C:\Users\WM\AppData\Local\Programs\Python\Python36\lib', 'C:\Users\WM\AppData\Local\Programs\Python\Python36', 'C:\Users\WM\AppData\Roaming\Python\Python36\site-packages', 'C:\Users\WM\AppData\Local\Programs\Python\Python36\lib\site-packages', 'E:\PyCharm 2019.1.1\helpers\pycharm_matplotlib_backend'] |
| Server time: | 星期一, 22 七月 2019 21:07:21 +0800 |
异常原因：
search_fields = ('content', 'detail','submitter')这是在view中模糊查询的字段，其中submitter字段是一个外键ForeignKey字段，而作为一个外键，它所对应的不是一个具体的字段，而是一个类。
所以我们应该将其对应成为一个外键关联的摸一个具体的字段，如submitter__username
search_fields = ('content', 'detail','submitter__username')