[Solved] Django use search_fields error (in get_lookup_constraint)

django use search_fields error (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:	Monday, 22 July 2019 21:07:21 +0800

Reason:

search_fields = ('content', 'detail','submitter')

This is a fuzzy query field in the view. The submitter field is a foreign key ForeignKey field. As a foreign key, it corresponds not to a specific field, but to a class

Therefore, we should map it to a specific field associated with a foreign key, such as submitter__username

search_fields = ('content', 'detail','submitter__username')

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