Why doesn't {% if %} {% else %} construction work in Django template? - django

Question

So I am trying to display "YOU" above the comment if it's in fact a comment that has been posted by current user, otherwise I am trying to display just a username of one who left a comment.
But somehow if/else doesn't work. Can anyone please tell me what am I doing wrong?
Thank you beforehand!
my models.py
class Comments(models.Model):
commented_by = models.ForeignKey(get_user_model(), on_delete=models.CASCADE)
comment = models.TextField(max_length=300)
def __str__(self):
return self.comment
my forms.py
class CommentForm(forms.ModelForm):
class Meta:
model = Comments
fields = ['comment']
widgets = {'comment': forms.Textarea(attrs={'class': 'form-control', 'rows': 5})}
my views.py
class Comment(CreateView, LoginRequiredMixin):
form_class = CommentForm
template_name = 'app/comments.html'
login_url = 'login'
success_url = reverse_lazy('comments')
def form_valid(self, form):
self.object = form.save(commit=False)
self.object.commented_by = self.request.user
self.object.save()
if self.object:
messages.success(self.request, 'Success')
else:
messages.error(self.request, 'Error')
return redirect(self.get_success_url())
def get_initial(self):
initial = super().get_initial()
initial['comment'] = 'Please leave your comment here'
return initial
def get_context_data(self, **kwargs):
context = super().get_context_data()
context['comments'] = Comments.objects.all()
return context
and my condition from the template:
<div>
<div class="commentsContainer">
{% for comment in comments %}
{% if comment.commented_by == user.username %}
<h4>YOU</h4>
{% else %}
{{comment.commented_by}}
{% endif %}
<div class="comment">
{{comment}}
</div>
{% endfor %}
</div>

Answer 1

comment.commented_by will give you an instance of the user model, whereas user.username will give you a string which is the user's username. Hence comment.commented_by == user.username will always give you False. Instead you should write:
{% if comment.commented_by == user %}
<h4>YOU</h4>
{% else %}
{{ comment.commented_by }}
{% endif %}