django-forms

问题 I'm trying to create a form where users can save their progress. I have successfully managed to upload files when they are saved, but for some reason the following code leaves the file that was uploaded unbound from the form and thus making the user reupload the file: class ImageForm(forms.ModelForm): class Meta: model = MyImage imageform = ImageForm(instance=a_MyImage_instance) I suppose I could go some manual getting and setting a la the documentation, but this behavior seems a bit odd to

问题 Everytime a blogpost is added, a memberlist will be generated. How do I automatically make it such that the author of the post will be included in the member list? I have added the create blog view models.py class BlogPost(models.Model): chief_title = models.CharField(max_length=50, null=False, blank=False, unique=True) body = models.TextField(max_length=5000, null=False, blank=False) members = models.ManyToManyField(settings.AUTH_USER_MODEL, blank=True, related_name="members") author =

问题 I trying to submit form while keeping field for datetime as empty which results in an error showing invalid format for datetime. my modal class lead(models.Model): assigned_to=models.CharField(max_length=15) ref=models.CharField(max_length=10,blank=True) lead_type=models.CharField(max_length=20) priority=models.CharField(max_length=20) hot=models.CharField(max_length=20,blank=True) source=models.CharField(max_length=20,blank=True) mls_lead=models.CharField(max_length=20,blank=True) auto

问题 I am fetching the current url of the browser (which keeps changing) in a javascript variable (say var_url). I have a django model Url. I want to create its object using a view function create_url() . Earlier When I used a form, I used request.POST['field'] . Now I don't have a form and I want to pass the value of var_url. How can that be done? This was my view function when I was using a form: def create_url(request): if request.method == 'POST': text=request.POST['field'] url_result=Url

问题 What I understood in Django models field's attributes is auto_now - updates the value of field to current time and date every time the Model.save() is called. auto_now_add - updates the value with the time and date of creation of record. My question is what if a filed in model contains both the auto_now and auto_now_add set to True? What happens in that case? 回答1: auto_now takes precedence (obviously, because it updates field each time, while auto_now_add updates on creation only). Here is

问题 I am new to Django and can't understand the models and forms. Can any one suggest me the differences and tutorials related to them. 回答1: Basically, a model encapsulates information about something (i.e., it models it), and is stored in the database. For example, we could model a person: from django import models class Person(models.Model): name = models.CharField(max_length=100) age = models.PositiveIntegerField() height = models.FloatField() weight = models.FloatField() Whenever a model

问题 I am new to Django and can't understand the models and forms. Can any one suggest me the differences and tutorials related to them. 回答1: Basically, a model encapsulates information about something (i.e., it models it), and is stored in the database. For example, we could model a person: from django import models class Person(models.Model): name = models.CharField(max_length=100) age = models.PositiveIntegerField() height = models.FloatField() weight = models.FloatField() Whenever a model

问题 I have two querysets: type and age_group . type queryset: <QuerySet [<Type: Cat>, <Type: Dog>, <Type: Other>]> age_group queryset: <QuerySet [<AgeGroup: Young>, <AgeGroup: Baby>, <AgeGroup: Adult>, <AgeGroup: Senior>]> I loop through these from within my template form so that I can grab the pk when one has been selected, but I cannot capture the variable from within the for loop. How do I capture a variable from within a for loop when using Django? I want to capture pk for type and pk for age

问题 I'm new to django (and programming in general). Sorry if I used the wrong vocabulary (and please correct me). This is what i'm trying to do: I have this model: Class A(models.Model): name = models.CharField(max_length=100, null=True, default='John') first_number = models.FloatField(blank=True, default=1) second_number = models.FloatField(blank=True, default=2) third_number = models.FloatField(blank=True, default=3) And I have this form: class Numbers(ModelForm): class Meta: model = A fields =

问题 I am trying to update the Bar Information for users by getting their details and setting the Bar instance. But every time I click on the link on my dashboard it redirects me to the dashboard which is what I used for the else statement if it is not a post method. view.py def UpdateUserBar(request): user = request.user.id bar = Bar.objects.get(user_id=user) form = UpdateBar(instance=bar) if request.method == 'POST': form = UpdateBar(request.POST,request.FILES, instance=bar) if form.is_valid():