python-如何在Django中保存内联表单集模型？

表单集具有.save()方法,documentation表示要保存在如下视图中：

if request.method == "POST":
    formset = BookInlineFormSet(request.POST, request.FILES, instance=author)
    if formset.is_valid():
        formset.save()
        # Do something.
else:
    formset = BookInlineFormSet(instance=author)

我遵循此方法,并且在创建父级时可以使用,但是在Django中保存现有模型时出现异常.父级实际上已保存到数据库,并且在保存相关模型时会发生异常.

KeyError at /bcdetails/NewProds/1/

None

Request Method:     POST
Request URL:    http://rdif.local/bcdetails/NewProds/1/
Exception Type:     KeyError
Exception Value:    

None

Exception Location:     /usr/lib/python2.5/site-packages/django/forms/models.py in save_existing_objects, line 403
Python Executable:  /usr/bin/python
Python Version:     2.5.2
Python Path:    ['/usr/lib/python2.5/site-packages/paramiko-1.7.4-py2.5.egg', '/usr/lib/python2.5/site-packages/Fabric-0.0.9-py2.5.egg', '/usr/lib/python2.5', '/usr/lib/python2.5/plat-linux2', '/usr/lib/python2.5/lib-tk', '/usr/lib/python2.5/lib-dynload', '/usr/local/lib/python2.5/site-packages', '/usr/lib/python2.5/site-packages', '/usr/lib/python2.5/site-packages/Numeric', '/usr/lib/python2.5/site-packages/PIL', '/usr/lib/python2.5/site-packages/gst-0.10', '/var/lib/python-support/python2.5', '/usr/lib/python2.5/site-packages/gtk-2.0', '/var/lib/python-support/python2.5/gtk-2.0', '/usr/lib/site-python', '/home/www/rdif.com/test/']
Server time:    Wed, 7 Jan 2009 23:18:19 -0700

我花了一些时间在Django源代码中,但在那里找不到任何东西.我是否需要遍历每个表单集并仅保存已更改的模型？

解决方法:

我发现了我的问题,这很尴尬.

在父模型形式中,我在Meta类中具有exclude =(‘…’,),并且其中一个排除字段对于inline_formsets中的关系至关重要.因此,我删除了排除项,并忽略了模板中的那些字段.

标签：django-forms,python,django
来源： https://codeday.me/bug/20191108/2004606.html