How to delete object using function based view? - django

Question

I am having trouble trying to implement a delete function-based view as I am unsure of what is the correct syntax.
So far this is the method that I am using:
def delete_lesson(request, post_id):
if request.method == 'POST':
lesson = Lesson.objects.get(post_id=request.get('post_id'))
lesson.delete()
return redirect('/')
I have implemented the delete function in my model:
class Lesson(models.Model):
title = models.CharField(max_length=100)
file = models.FileField(upload_to="lesson/pdf")
date_posted = models.DateTimeField(default=timezone.now)
post = models.ForeignKey(Post, on_delete=models.CASCADE, null=False, blank=False)
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('lesson_upload', kwargs={'pk': self.pk})
def delete(self, *args, **kwargs):
self.file.delete()
self.title.delete()
super().delete(*args, **kwargs)
class Post(models.Model):
title = models.CharField(max_length=100)
image = models.ImageField(default = 'default0.jpg', upload_to='course_image/')
description = models.TextField()
price = models.DecimalField(decimal_places=2, max_digits=6)
date_posted = models.DateTimeField(default=timezone.now)
author = models.ForeignKey(User, on_delete=models.CASCADE)
rating = models.IntegerField(default = 0)
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('post-detail', kwargs={'pk' : self.pk})
My urls.py:
path('post/<int:post_id>/lesson_delete/', views.delete_lesson, name='delete_lesson'),

Answer 1

You have a post_id in your URL which passes the id to your view which you also received.
So if you want to remove the post with the id in your URL then this is how you can do:
lesson = Lesson.objects.get(post_id=post_id)
If for any reasons you get a post id from your template and it's different than the post id in your URL, then this is how you should do it:
Lesson.objects.get(post_id=request.POST.get('post_id'))
Note if you're using the second option which the post_id you want to delete is different than what you have in post/<int:post_id>/lesson_delete/ then you should pass the post_id as a POST data from your template.