Saving data to database using forms django

Question

Model

class Publisher(models.Model):
    name = models.CharField(max_length=30)
    address = models.CharField(max_length=50)
    city = models.CharField(max_length=60)
    state_province = models.CharField(max_length=30)
    country = models.CharField(max_length=50)
    website = models.URLField()

Form

from django import forms
class ContactForm(forms.Form):
    name = forms.CharField()
    address = forms.CharField()
    city = forms.CharField()
    state_province = forms.CharField()
    country = forms.CharField()
    website = forms.URLField()

And view

def test(request):
    if request.method=='POST':
        form = ContactForm(request.POST)
        if form.is_valid():
            print  form.cleaned_data
            p=Publisher()
            p.name=form.cleaned_data.get('name')
            p.address=form.cleaned_data.get('address')
            p.city=form.cleaned_data.get('city')
            p.state_province=form.cleaned_data.get('state_province')
            p.country=form.cleaned_data.get('country')
            p.website=form.cleaned_data.get('website')
            p.save()
            return HttpResponse("Done")
else:
        form = ContactForm()
    return render(request, 'contact_form.html', {'form': form})

I am saving the data to the database when the submitted form is valid. But what I did is extracting each field from dictionary form.cleaned_data and then assigned it to instance of Publisher object manually for e.g p.name=form.cleaned_data.get('name')

My question is that is there is any way to assign the form.cleaned_data dictionary to Publisher object. In short can i do it like ,

p=Publisher()
p=form.cleaned_data
p.save()

Please look into modelforms here.. Your use fits the case of Model Forms perfectly.. docs.djangoproject.com/en/dev/topics/forms/modelforms — arijeet
– arijeet, Commented Apr 24, 2014 at 18:30

karthikr · Accepted Answer · 2014-04-24 18:41:07Z

1

A perfect candidate for ModelForms

from django import forms
class ContactForm(forms.Form):
    class Meta:
        model = Publisher

and views:

def test(request):
    form = ContactForm()
    if request.method=='POST':
        form = ContactForm(request.POST)
        if form.is_valid():
            publisher = form.save()
            return HttpResponse("Done")
    return render(request, 'contact_form.html', {'form': form})

answered Apr 24, 2014 at 18:41

karthikr

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Comments

arijeet · Accepted Answer · 2014-04-24 18:42:53Z

You should use ModelForms, it fits your case perfectly..

Full docs are available here

But I will try and explain how to use your case with a ModelForm (although I'd suggest you go through the docs themselves and try it yourself)

Considering your existing model, create a forms.py file in which you need to create a ModelForm class as follows:

#Import your model here
from .models import Publisher
from django.forms import ModelForm

class PublisherForm(ModelForm):
    class Meta:
        model = Publisher
        fields = '_all_'

Note: You can use the 'fields' option to tell Django to restrict the fields it will be showing in the form. By default 'all' is used to show and use all fields from your defined Publisher model. After creating your ModelForm, you can populate it using a request.POST(or any other way)

f = PublisherForm(request.POST)

To save the data directly to the corresponding model, simply call the save() method. Remember, you are using a ModelForm, not a regular forms.Form, which means Django now knows which model to save to, so you can simply call .save() on your ModelForm instance.

f.save()

If you wish to perform cleanup operations on the populated form before saving, that can also be done. Check the docs for detailed explanations regarding that.

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