Django add form data in two models - django

Question

Im trying create a new book and review from on request.POST. The issue here is the issue is that the data needs to go to two models with foreign keys. Here is the request.POST:
def add(request):
if request.method == 'POST':
result = Review.objects.addBook_and_Review(
user=request.session['id'],
title=request.POST['title'],
author=request.POST['author'],
new_author=request.POST['new_author'],
review=request.POST['review'],
rating=request.POST['rating']
)
return redirect('add')
else:
return render(request, 'books/add.html')
And here is the the custom manager and the two models (Review and Book). Note the Review model with foreign Keys.
class ReviewManager(models.Manager):
def addBook_and_Review(self, **kwargs):
#custom manager code here
return True
class BookManager(models.Manager):
print('hit book manager')
pass
class User(models.Model):
name = models.CharField(max_length=200)
alias = models.CharField(max_length=200)
email = models.EmailField()
pw_hash = models.CharField(max_length=200)
created_at = models.DateField(auto_now_add=True)
updated_at = models.DateField(auto_now=True)
objects = UserManager()
class Book(models.Model):
title = models.CharField(max_length=200)
author = models.CharField(max_length=200)
created_at = models.DateField(auto_now_add=True)
updated_at = models.DateField(auto_now=True)
objects = BookManager()
class Review(models.Model):
review = models.CharField(max_length=1000)
rating = models.CharField(max_length=200)
created_at = models.DateField(auto_now_add=True)
updated_at = models.DateField(auto_now=True)
user = models.ForeignKey(User, on_delete=models.CASCADE)
book = models.ForeignKey(Book, on_delete=models.CASCADE)
objects = ReviewManager()

Answer 1

It's easy. If you want to create Book and Review objects using one POST request, do the following (continuing your code):
def add(request):
if request.method == 'POST':
book = Book.objects.create(
title=request.POST['title'],
author=request.POST['author'],
)
result = Review.objects.addBook_and_Review(
user=request.session['id'],
title=request.POST['title'],
author=request.POST['author'],
new_author=request.POST['new_author'],
review=request.POST['review'],
rating=request.POST['rating'],
book=review)
return redirect('add')
else:
return render(request, 'books/add.html')
It is recommended that you do this after the validation using forms.