CODEWITHSUNDEEP
djangodjango-formsdjango-1.6
JuanPablo
JuanPablo

Reputation: 24764

django update object with form

in django 1.6, I have a model with 

class Person(models.Model):
    name = models.CharField(max_length=200)
    lastname = name = models.CharField(max_length=200)

and a form

class EventPerson(ModelForm):

    class Meta:
        model = Event
        fields = ['name', 'lastname']

if I create a object with 

p = Person.object.create(name='John')

and I have a dictionary

d = {'lastname':'Smith'}

how I can update the object with the dictionary and the form ?

Upvotes: 0

Views: 2793

Answers (2)

arocks
arocks

Reputation: 2882

If your model doesn't have inherited attributes you can use:

p.__dict__.update(d)
p.save()

You can use this in the form's __init__ also

Upvotes: 1

Aaron Lelevier
Aaron Lelevier

Reputation: 20780

The easiest way to do that with the least code would be with the class based UpdateView.

Here is the link to the Django Docs:

https://docs.djangoproject.com/en/dev/ref/class-based-views/generic-editing/#django.views.generic.edit.UpdateView

A views.py code sample would be:

from django.views.generic.edit import UpdateView
from myapp.models import Person

class PersonUpdate(UpdateView):
    model = Person
    fields = ['name', 'lastname']
    template_name_suffix = '_update_form'

Then just add the form in your template. By default the template name will be person_update_form.html

The template code just looks like:

<form action="" method="post">
    {% csrf_token %}
    {{ form }}
    <input type="submit" value="Submit" />
</form>

This will also automatically populate the form with any initial form data from the Person object that you are trying to update.

Edit:

To update an object based on a dict of the object you want to:

  • get the object

    person = Person.object.get(name='John')

  • update it

    # if this is the new lastname d = {'lastname':'Smith'}

    # then access the dict and update it person.lastname = d['lastname']

  • save the object

    person.save()

You don't need to use the form if you are not using a template.

Upvotes: 1

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