I'd like to create a formView(based on Django build-in CreateView class) to allow creating new user records, which are from two different models.
Both models sounds like one is user model and another is user profile model.
I wish one form with one submit button to approach it, but I found only one form_class could be assigned in one createView class in Django.
So I wonder is that possible to use CreateView to approach it? if not, any solution recommended? Appreciated if any assistance from you.
So you have two models for user and user_profile. One user one profile
so:
Try this:
#models.py
class User_profile(models.Model):
User= models.Foreignkey('User')
#add more user data
#forms.py
class UserProfileForm(ModelForm):
model = User_profile
fields = ['User']
#views.py
class SomeView(CreateView):
form_class = UserProfileForm()
Actually, I find the solution: use the User model and add profile's field in the same form as below
class userCreateForm:
email = forms.EmailField(label=_("E-mail"))
contact_number = forms.CharField(label=_("Contact"))
contact_address = forms.CharField(label=_("Address"))
class Meta:
model = User
fields = (UsernameField(), "email", "contact_number", "contact_address")
Related
Could anyone explain to me similarities and differences of Django's forms.Form & forms.ModelForm?
Forms created from forms.Form are manually configured by you. You're better off using these for forms that do not directly interact with models. For example a contact form, or a newsletter subscription form, where you might not necessarily be interacting with the database.
Where as a form created from forms.ModelForm will be automatically created and then can later be tweaked by you. The best examples really are from the superb documentation provided on the Django website.
forms.Form:
Documentation: Form objects
Example of a normal form created with forms.Form:
from django import forms
class ContactForm(forms.Form):
subject = forms.CharField(max_length=100)
message = forms.CharField()
sender = forms.EmailField()
cc_myself = forms.BooleanField(required=False)
forms.ModelForm:
Documentation: Creating forms from models
Straight from the docs:
If your form is going to be used to
directly add or edit a Django model,
you can use a ModelForm to avoid
duplicating your model description.
Example of a model form created with forms.Modelform:
from django.forms import ModelForm
from . import models
# Create the form class.
class ArticleForm(ModelForm):
class Meta:
model = models.Article
This form automatically has all the same field types as the Article model it was created from.
The similarities are that they both generate sets of form inputs using widgets, and both validate data sent by the browser. The differences are that ModelForm gets its field definition from a specified model class, and also has methods that deal with saving of the underlying model to the database.
Here's how I'm extending the builtin UserCreationForm myapp/forms.py:
from django import forms
from django.contrib.auth.forms import UserCreationForm
class RegisterForm(UserCreationForm):
first_name = forms.CharField(max_length=30)
last_name = forms.CharField(max_length=30)
email = forms.CharField(max_length=75)
class Meta(UserCreationForm.Meta):
fields = ('username','first_name','last_name', 'email')
The difference is simple, ModelForm serves to create the form of a Model.
meaning that Model is designed to create kind of schema of your table where you will save data from form submission and ModelForm simply creates a form of the model (from the schema of the table)
# This creates a form from model Article
class ArticleForm(ModelForm):
class Meta:
model = Article
fields = ['pub_date', 'headline', 'content', 'reporter']
Form is a common form that is unrelated to your database (model ).
# A simple form to display Subject and Message field
class ContactForm(forms.Form):
subject = forms.CharField(max_length=100)
message = forms.CharField(widget=forms.Textarea)
To say in other words,
If you have a model in your app and you want to create a Form to enter data in that model (and by it to a db) use forms.ModelForm
If you simple want to create a form using django use form.Form
But you can also use this together:
from django import forms
# A simple form to display Subject and Message field
class ContactForm(forms.ModelForm):
subject = forms.CharField(max_length=100)
message = forms.CharField(widget=forms.Textarea)
class Meta:
model = Contact #when you have this model
fields = [
'subject',
'message',
]
Could anyone explain to me similarities and differences of Django's forms.Form & forms.ModelForm?
Forms created from forms.Form are manually configured by you. You're better off using these for forms that do not directly interact with models. For example a contact form, or a newsletter subscription form, where you might not necessarily be interacting with the database.
Where as a form created from forms.ModelForm will be automatically created and then can later be tweaked by you. The best examples really are from the superb documentation provided on the Django website.
forms.Form:
Documentation: Form objects
Example of a normal form created with forms.Form:
from django import forms
class ContactForm(forms.Form):
subject = forms.CharField(max_length=100)
message = forms.CharField()
sender = forms.EmailField()
cc_myself = forms.BooleanField(required=False)
forms.ModelForm:
Documentation: Creating forms from models
Straight from the docs:
If your form is going to be used to
directly add or edit a Django model,
you can use a ModelForm to avoid
duplicating your model description.
Example of a model form created with forms.Modelform:
from django.forms import ModelForm
from . import models
# Create the form class.
class ArticleForm(ModelForm):
class Meta:
model = models.Article
This form automatically has all the same field types as the Article model it was created from.
The similarities are that they both generate sets of form inputs using widgets, and both validate data sent by the browser. The differences are that ModelForm gets its field definition from a specified model class, and also has methods that deal with saving of the underlying model to the database.
Here's how I'm extending the builtin UserCreationForm myapp/forms.py:
from django import forms
from django.contrib.auth.forms import UserCreationForm
class RegisterForm(UserCreationForm):
first_name = forms.CharField(max_length=30)
last_name = forms.CharField(max_length=30)
email = forms.CharField(max_length=75)
class Meta(UserCreationForm.Meta):
fields = ('username','first_name','last_name', 'email')
The difference is simple, ModelForm serves to create the form of a Model.
meaning that Model is designed to create kind of schema of your table where you will save data from form submission and ModelForm simply creates a form of the model (from the schema of the table)
# This creates a form from model Article
class ArticleForm(ModelForm):
class Meta:
model = Article
fields = ['pub_date', 'headline', 'content', 'reporter']
Form is a common form that is unrelated to your database (model ).
# A simple form to display Subject and Message field
class ContactForm(forms.Form):
subject = forms.CharField(max_length=100)
message = forms.CharField(widget=forms.Textarea)
To say in other words,
If you have a model in your app and you want to create a Form to enter data in that model (and by it to a db) use forms.ModelForm
If you simple want to create a form using django use form.Form
But you can also use this together:
from django import forms
# A simple form to display Subject and Message field
class ContactForm(forms.ModelForm):
subject = forms.CharField(max_length=100)
message = forms.CharField(widget=forms.Textarea)
class Meta:
model = Contact #when you have this model
fields = [
'subject',
'message',
]
It is sometimes desirable to restrict the choices presented by the ForeignKey field of a ModelForm so that users don't see each others' content. However this can be tricky because models do not have access to request.user.
Consider an app with two models:
class Folder(models.Model):
user = models.ForeignKey(get_user_model(), editable=False, on_delete=models.CASCADE)
name = models.CharField(max_length=30)
class Content(models.Model):
folder = models.ForeignKey(Folder, on_delete=models.CASCADE)
text = models.CharField(max_length=50)
The idea is that users can create folders and content, but may only store content in folders that they themselves created.
i.e.:
Content.folder.user == request.user
QUESTION: How can we use for example CreateView, so that when creating new content users are shown the choice of only their own folders?
I do this by overriding CreateView.get_form_class() in order to modify the attributes of the relevant field of the form before it is passed to the rest of the view.
The default method, inherited from views.generic.edit.ModelFormMixin, returns a ModelForm that represents all the editable fields of the model in the base_fields dictionary. So it's a good place to make any desired changes and also has access to self.request.user.
So for the above example, in views.py we might say:
class ContentCreateView(LoginRequiredMixin, CreateView):
model = Content
fields = '__all__'
def get_form_class(self):
modelform = super().get_form_class()
modelform.base_fields['folder'].limit_choices_to = {'user': self.request.user}
return modelform
Read more about ForeignKey.limit_choices_to in the docs.
Note that field choices are enforced by form validation so this should be quite robust.
I'm only using forms.Form but I'm trying to show two choice fields that have selections of the associated models.
It basically needs to show the same names but in both fields. Here's what I'm using.
class ManagersForm(forms.Form):
class Meta:
model = A
leader = forms.ChoiceField()
co-leader = forms.ChoiceField()
Is there not just a way that I can parse the users?
users = MyUser.objects.filter(a=i)
You need to use a ModelForm not Form, if the field from the Model is a ForeignKey the form will render the field as a dropdown of the associated model:
class ManagersForm(forms.ModelForm):
class Meta:
model = A
Could anyone explain to me similarities and differences of Django's forms.Form & forms.ModelForm?
Forms created from forms.Form are manually configured by you. You're better off using these for forms that do not directly interact with models. For example a contact form, or a newsletter subscription form, where you might not necessarily be interacting with the database.
Where as a form created from forms.ModelForm will be automatically created and then can later be tweaked by you. The best examples really are from the superb documentation provided on the Django website.
forms.Form:
Documentation: Form objects
Example of a normal form created with forms.Form:
from django import forms
class ContactForm(forms.Form):
subject = forms.CharField(max_length=100)
message = forms.CharField()
sender = forms.EmailField()
cc_myself = forms.BooleanField(required=False)
forms.ModelForm:
Documentation: Creating forms from models
Straight from the docs:
If your form is going to be used to
directly add or edit a Django model,
you can use a ModelForm to avoid
duplicating your model description.
Example of a model form created with forms.Modelform:
from django.forms import ModelForm
from . import models
# Create the form class.
class ArticleForm(ModelForm):
class Meta:
model = models.Article
This form automatically has all the same field types as the Article model it was created from.
The similarities are that they both generate sets of form inputs using widgets, and both validate data sent by the browser. The differences are that ModelForm gets its field definition from a specified model class, and also has methods that deal with saving of the underlying model to the database.
Here's how I'm extending the builtin UserCreationForm myapp/forms.py:
from django import forms
from django.contrib.auth.forms import UserCreationForm
class RegisterForm(UserCreationForm):
first_name = forms.CharField(max_length=30)
last_name = forms.CharField(max_length=30)
email = forms.CharField(max_length=75)
class Meta(UserCreationForm.Meta):
fields = ('username','first_name','last_name', 'email')
The difference is simple, ModelForm serves to create the form of a Model.
meaning that Model is designed to create kind of schema of your table where you will save data from form submission and ModelForm simply creates a form of the model (from the schema of the table)
# This creates a form from model Article
class ArticleForm(ModelForm):
class Meta:
model = Article
fields = ['pub_date', 'headline', 'content', 'reporter']
Form is a common form that is unrelated to your database (model ).
# A simple form to display Subject and Message field
class ContactForm(forms.Form):
subject = forms.CharField(max_length=100)
message = forms.CharField(widget=forms.Textarea)
To say in other words,
If you have a model in your app and you want to create a Form to enter data in that model (and by it to a db) use forms.ModelForm
If you simple want to create a form using django use form.Form
But you can also use this together:
from django import forms
# A simple form to display Subject and Message field
class ContactForm(forms.ModelForm):
subject = forms.CharField(max_length=100)
message = forms.CharField(widget=forms.Textarea)
class Meta:
model = Contact #when you have this model
fields = [
'subject',
'message',
]