FieldError

错误信息

'balance' cannot be specified for CashOnHand model form as it is a non-editable field. Check fields/fieldsets/exclude attributes of class CashOnHandAdmin.

原因

Model中有字段是不可编辑的，但是对应的Admin类中确定义了该字段，fields中需要删除，但是list_display中可以保留该字段用于显示

# Model - CashOnHand
balance = models.FloatField(editable=False)

# CashOnHandAdmin
# fields = ['operation_date', 'serial_number', 'opposite_account', 'summary', 'lucre', 'balance', 'remark']
fields = ['operation_date', 'serial_number', 'opposite_account', 'summary', 'lucre', 'remark']
list_display = ('operation_date', 'serial_number', 'opposite_account', 'summary', 'lucre', 'balance', 'remark')