Django - Saving a form form multiple model - django

Question

I am new in Django, and trying to create a simple blog platform out of it. It's where user can create/edit a blog post on the front end.
Here is my models.py
class Blog(models.Model):
title = models.CharField(max_length=200)
content = models.TextField()
author = models.ForeignKey(User, null=True, blank=True)
......
class Categories(models.Model):
blog = models.ForeignKey(Blog)
name = models.CharField(max_length=200)
slug = models.CharField(max_length=200)
......
And I created a form in the front end by :
#forms.py
class AddBlogForm(forms.ModelForm):
class Meta:
model = Blog
class AddCategoryForm(forms.ModelForm):
class Meta:
model = Categories
#views.py
def AddBlogPost(request):
if request.POST:
lf= AddBlogForm(request.POST, request.FILES,prefix="Lform")
cf = AddCategoryForm(request.POST, prefix="Cform")
if lf.is_valid() and cf.is_valid():
addblog = lf.save(commit=False)
addblog.save()
obj_id = addblog.id
addcategory = cf.save(commit=False)
addcatgory.blog_id = obj_id
addcatgory.save()
return HttpResponseRedirect(reverse('edit', args=(obj_id,)))
else:
blog= AddBlogForm(prefix="Lform")
category = AddCategoryForm(prefix="Cform")
return render_to_response("forms.html", locals(),context_instance=RequestContext(request))
#template
<form action="" enctype="multipart/form-data" method="POST">{% csrf_token %}
{{blog.as_p}}
{{category.as_p}}
<input type="submit">
</form>
This working actually, but I feel it is too redundant create and saving a form with two classes.It's there anyway to simplified this?

Answer 1

You can use django forms to save data from a form to multiple models. For example:
forms.py
class AddBlogCategory(forms.Form):
title= form.CharField(max_length=100)
content= form.CharField(max_length=255)
...............
...............
views.py:
def AddBlogPost(request):
if request.POST:
form= AddBlogCategory(request.POST)
if form.is_valid():
addblog= Blog() #import model class
addblog.title= form.cleaned_data['title']
addblog.content= form.cleaned_data['content']
addblog.author= request.user
.....
addblog.save()
obj_id= addblog.id
addcat=Categories()
addcat.blog= addblog
....
addcat.save()
return HttpResponseRedirect(reverse('edit', args=(obj_id,)))
else:
return render_to_response("forms.html", {form:'form'})
Its an untested code, but you can have an idea how to implement it.