验证Django ModelForm中的数据(Validating data in Django ModelForm)

验证Django ModelForm中的数据(Validating data in Django ModelForm)

我有一个简单的Package模型

from models import Package from django import forms class PackageForm(forms.ModelForm): class Meta: model= Package fields= ['name', 'version', 'url', 'description', 'arch', 'dependancies', 'conflicts', 'file']

如果文件扩展名（类是FileField）是否为.sh，我如何要求modelform在验证中检查？

有没有办法把它放在模型中？ 我只能在视图中管理它吗？

谢谢

编辑：另外，忘了问，模型有auth用户模型的外键...它将包含当前用户..模型如何管理？

再次感谢

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感谢你的回答！ 我抓住了这个......虽然我遇到了问题

包含django.contrib.auth.models的外键用户模型，处理表单时如何告诉modelform将当前用户对象传递给模型实例？ 我想到了这个......

views.py

def add(request): if request.method == 'POST': the_model= PackageForm(request.user, request.POST, request.FILES) if the_model.is_valid(): the_model.save()

我在模型中覆盖了init ：

from models import Package from django import forms class PackageForm(forms.ModelForm): def __init__(self,user,*args,**kwargs): super (PackageForm,self ).__init__(*args,**kwargs) # populates the post self.fields['maintainer_name'].queryset = user # adds the user object passed by add in views.py class Meta: model= Package fields= ['name', 'version', 'url', 'description', 'arch', 'dependancies', 'conflicts', 'file']

manteiner_name是ForeignKey（用户）对象...它给了我一个keyerror :(这不好......任何解决方案？

谢谢！

And i have a simple modelform for Package

from models import Package from django import forms class PackageForm(forms.ModelForm): class Meta: model= Package fields= ['name', 'version', 'url', 'description', 'arch', 'dependancies', 'conflicts', 'file']

How can i ask the modelform to check, within validation, if the file extension (class is FileField) is .sh for example?

is there a way to put this in modelform? of can i only manage it in a view?

Thanks

Edit: Also, forgot to ask, the model has a Foreignkey to the auth User model... which is going to contain the current user.. how can modelform manage that?

Thanks again

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Thanks for the answer! i'm getting hold of this.. although i encounter a problem

Package contains a foreignkey to django.contrib.auth.models User model, When the form is processed how can i tell the modelform to pass the current user object to the model instance? i thought of this...

views.py

def add(request): if request.method == 'POST': the_model= PackageForm(request.user, request.POST, request.FILES) if the_model.is_valid(): the_model.save()

i overwrited the init in modelform:

from models import Package from django import forms class PackageForm(forms.ModelForm): def __init__(self,user,*args,**kwargs): super (PackageForm,self ).__init__(*args,**kwargs) # populates the post self.fields['maintainer_name'].queryset = user # adds the user object passed by add in views.py class Meta: model= Package fields= ['name', 'version', 'url', 'description', 'arch', 'dependancies', 'conflicts', 'file']

manteiner_name is the ForeignKey(User) object... it gives me a keyerror :( that's not good... Any solutions?

Thanks!

最满意答案

您应该阅读有关进行exttra验证的django documentatino： http ： clean_file()您只需要定义一个clean_file()方法。

You should read the django documentatino on doing exttra validation: http://docs.djangoproject.com/en/1.1/ref/forms/validation/#ref-forms-validation You just need to define a clean_file() method.