django-forms

问题 What does the coerce argument do in django forms? I've read the documentation, but its not very helpful, so a good explanation with a few examples of use cases would be helpful. To quote the documentation: A function that takes one argument and returns a coerced value. Examples include the built-in int, float, bool and other types. Defaults to an identity function. 回答1: TypedChoiceField is just like ChoiceField, except ChoiceField always return unicode. With TypedChoiceField you pass a

问题 I want to make a queryset on a field in an inline formset .. I have Inovice and Product models and InvoiceDetails model to link the manytomany relation between them. here are the models: class Invoices(models.Model): """The Invoice Creation Class.""" invoice_number = models.CharField( _('invoice_number'), max_length=100, unique=True, null=True) .... class Products(models.Model): """Product Creation Class.""" company = models.ForeignKey(Company, default=1) barcode = models.CharField(_('barcode

问题 I want to make a queryset on a field in an inline formset .. I have Inovice and Product models and InvoiceDetails model to link the manytomany relation between them. here are the models: class Invoices(models.Model): """The Invoice Creation Class.""" invoice_number = models.CharField( _('invoice_number'), max_length=100, unique=True, null=True) .... class Products(models.Model): """Product Creation Class.""" company = models.ForeignKey(Company, default=1) barcode = models.CharField(_('barcode

问题 I am building a BlogApp and I am stuck on an Error and I keep getting this error :- The Post could not be created because the data didn't validate. What i am trying to do I made a feature that users cannot insert past date in DateTimeField . AND If user enters the past date in field then a Validation Error should be display. AND i was testing it and suddenly a new error is occured. forms.py class PostForm(forms.ModelForm): date = forms.DateTimeField(initial=timezone.now) def clean_date(self):

问题 I am building a BlogApp and I am stuck on an Error and I keep getting this error :- The Post could not be created because the data didn't validate. What i am trying to do I made a feature that users cannot insert past date in DateTimeField . AND If user enters the past date in field then a Validation Error should be display. AND i was testing it and suddenly a new error is occured. forms.py class PostForm(forms.ModelForm): date = forms.DateTimeField(initial=timezone.now) def clean_date(self):

问题 I am trying to create a pretty complicated form and break it up using formwizard. The first thing I am trying to do is get the ManyToManyField using through to display, Then I need to figure out how to make it all save. #models.py ---------------------- class Meat(models.Model): name = models.charField(max_length=200) company = models.CharField(max_length = 200) class Starch(models.Model): name = models.CharField(max_length=200) company = models.CharField(max_length=200) class Recipe(models

问题 I'm trying to my first attempt at django file-uploading, and all i need at the moment is a way to display an uploaded image (png/jpg) to the user that uploaded. No need to save it anywhere. My views.py: (i'm using django forms, btw) if request.method == 'POST': form = UploadFileForm(request.POST, request.FILES) if form.is_valid(): upFile = request.FILES['upFile'] f={"upFile":upFile} return render_to_response('upload2.html', f) And i can, as expected, display the name and size of my file in

问题 I've got a form with profile_picture=ImageField field set to the initial value. It's using ClearableFileInput widget. I need to customize the form in the template, so I can't simply use {{ form.profile_picture}} . How can I split field elements and obtain something which looks like this: {{ with picture=form.profile_picture }} {{ picture.label_tag }} <a href="{{ picture.url }}"> <img src="{{ picture.url }}"> </a> {{ picture.clear-picture }} where {{ picture.clear-picture }} should generate

问题 I've got a form with profile_picture=ImageField field set to the initial value. It's using ClearableFileInput widget. I need to customize the form in the template, so I can't simply use {{ form.profile_picture}} . How can I split field elements and obtain something which looks like this: {{ with picture=form.profile_picture }} {{ picture.label_tag }} <a href="{{ picture.url }}"> <img src="{{ picture.url }}"> </a> {{ picture.clear-picture }} where {{ picture.clear-picture }} should generate

问题 I am having problems with django forms and image uploads. I have googled, read the documentations and even questions ere, but cant figure out the issue. Here are my files my models class UserProfile(User): """user with app settings. """ DESIGNATION_CHOICES=( ('ADM', 'Administrator'), ('OFF', 'Club Official'), ('MEM', 'Ordinary Member'), ) onames = models.CharField(max_length=30, blank=True) phoneNumber = models.CharField(max_length=15) regNo = models.CharField(max_length=15) designation =