saving forms via TemplateView - django

Question

I am trying to save forms via Post by TemplateView, but when def Post calls, forms are not saved.
using inline formset . Book Title is saved by Author,1 author can have multiple books .
Codes below are what I am using:
This is the view , Posting content of Inlineformset , if it is get , shows the form , if it is post it must save the data .
#view.py
from django.shortcuts import render
# Create your views here.
from django.views.generic import TemplateView,UpdateView
from django.forms import inlineformset_factory
from .models import Author,Book
from django.shortcuts import redirect
class BookView(TemplateView):
template_name ="index.html"
def get(self, request, *args, **kwargs):
return self.render_preview(request)
def post(self,request,*args,**kwargs):
return self.save_book(request)
def save_book(self,request,**kwargs):
BookFormSet = inlineformset_factory(Author, Book, fields=('title',),can_delete=False)
author = Author.objects.get(name='John')
formset = BookFormSet(instance=author)
if formset.is_valid():
formset.save()
return redirect('/')
context = super(BookView, self).get_context_data(**kwargs)
context['formset'] = formset
return self.render_to_response(context)
def render_preview(self, request, **kwargs):
BookFormSet = inlineformset_factory(Author, Book, fields=('title',),can_delete=False)
author = Author.objects.get(name='John')
formset = BookFormSet(instance=author)
context = super(BookView, self).get_context_data(**kwargs)
context['formset'] = formset
return self.render_to_response(context)
#Models
This is the models.py
# Create your models here.
from django.db import models
class Author(models.Model):
name = models.CharField(max_length=100)
def __str__(self):
return self.name
class Book(models.Model):
author = models.ForeignKey(Author, on_delete=models.CASCADE)
title = models.CharField(max_length=100)
def __str__(self):
return self.title
index.html
<form action="" method="post" >
<div class="html">
{% csrf_token %}
{% for form in formset %}
{{form }}
{%endfor %}
<button type="submit">save</button>
</form>
</div>

Answer 1

I was having this same issue not so long ago and I solved it a bit different than by using a FormSet (which I am not so familiar with), hope it helps you out:
Models.py
from django.db import models
class Author(models.Model)
name = models.CharField(max_length=100)
def __str__(self):
return self.name
class Book(models.Model)
author = models.ForeignKey(Author, on_delete=models.CASCADE)
title = models.CharField(max_length=100)
def __str__(self):
return self.title
Forms.py
from django import forms
from Appname.models import Author, Book
class Author(forms.ModelForm):
class Meta:
model = Author
fields = ['name']
class Book(forms.ModelForm):
class Meta:
model = Book
fields = ['author', 'title']
Views.py
class BookView(TemplateView):
template_name ="index.html"
author_form_class = Author
def get_context_data(self, **kwargs):
context = super(BookView, self).get_context_data(**kwargs)
context['author_form'] = self.author_form_class
context['book_form'] = self.book_form_class
return context
def post(self, request):
author_form_class = Author(request.POST or None)
book_form_class = Book(request.POST or None)
if author_form_class.is_valid():
author_form_class.save()
return redirect('/')
if book_form_class.is_valid():
book_form_class.save()
return redirect('/')
index.html
<form method="post">
{{ csrf_token }}
{{ author_form}}
<input type="submit" value="submit">
</form>