Notes should be showed only for the author - django

Question

In my note taking project, I want to do so, that notes should be showed only for the author of the object. I am trying to solve this problem for 3 days. But, I could not solve this. Please Help! Thanks in an advance
view.py
#login_required(login_url='login')
def index(request):
tasks = Task.objects.all()
if request.method=='POST':
form = TaskForm(request.POST)
if form.is_valid():
obj = form.save()
obj.owner = request.user
obj.save()
return redirect('/')
form = TaskForm()
user = request
context = {
'tasks' : tasks,
'form':form,
'obj':obj
}
return render(request, 'list.html',context)
models.py
class Task(models.Model):
title = models.CharField(max_length=200)
completed = models.BooleanField(default=False)
created = models.DateTimeField(auto_now_add=True)
def __str__(self):
return self.title

Answer 1

Your Task will need a ForeignKey to the user model, to keep track who created the task, so:
from django.conf import settings
class Task(models.Model):
title = models.CharField(max_length=200)
completed = models.BooleanField(default=False)
created = models.DateTimeField(auto_now_add=True)
owner = models.ForeignKey(
settings.AUTH_USER_MODEL,
on_delete=models.CASCADE
)
I think in that case it is better to recreate the migration file that creates the table for the Task model.
Now that we have an owner of the Tasks, we can filter with:
#login_required(login_url='login')
def index(request):
tasks = Task.objects.filter(owner=request.user)
if request.method=='POST':
form = TaskForm(request.POST, request.FILES)
if form.is_valid():
form.instance.owner = request.user
obj = form.save()
return redirect('/')
else:
form = TaskForm()
context = {
'tasks' : tasks,
'form': form
}
return render(request, 'list.html', context)