views.py

from django.contrib.auth.decorators import login_required
from django.shortcuts import get_object_or_404, redirect, render

from .forms import NewTopicForm
from .models import Board, Post, Topic


def home(request):
    boards = Board.objects.all()
    return render(request, 'home.html', {'boards': boards})


def board_topics(request, pk):
    board = get_object_or_404(Board, pk=pk)
    return render(request, 'topics.html', {'board': board})


@login_required
def new_topic(request, pk):
    board = get_object_or_404(Board, pk=pk)
    if request.method == 'POST':
        form = NewTopicForm(request.POST)
        if form.is_valid():
            topic = form.save(commit=False)
            topic.board = board
            topic.starter = request.user
            topic.save()
            Post.objects.create(
                message=form.cleaned_data.get('message'),
                topic=topic,
                created_by=request.user
            )
            return redirect('board_topics', pk=board.pk)  # TODO: redirect to the created topic page
    else:
        form = NewTopicForm()
    return render(request, 'new_topic.html', {'board': board, 'form': form})


def topic_posts(request, pk, topic_pk):
    topic = get_object_or_404(Topic, board__pk=pk, pk=topic_pk)
    return render(request, 'topic_posts.html', {'topic': topic})

hmm ..why is it board__pk ?

double underscore are used for field lookup. It is similar to SQL WHERE clause.

Im Getting this error. Tried a lot but couldnt get through:

NoReverseMatch at /boards/1/topics/1/
Reverse for 'boards_topics' with arguments '('',)' not found. 1 pattern(s) tried: ['boards/(?P\d+)/$']

hmm ..why is it board__pk ?

yeah.......it should be board_id

hmm ..why is it board__pk ?

yeah.......it should be board_id

yes, board_id works

Im Getting this error. Tried a lot but couldnt get through:

NoReverseMatch at /boards/1/topics/1/
Reverse for 'boards_topics' with arguments '('',)' not found. 1 pattern(s) tried: ['boards/(?P\d+)/$']

Did you later figure this out?

Im Getting this error. Tried a lot but couldnt get through:
NoReverseMatch at /boards/1/topics/1/
Reverse for 'boards_topics' with arguments '('',)' not found. 1 pattern(s) tried: ['boards/(?P\d+)/$']

Did you later figure this out?

Hi Chinwendu, did you find the solution for this?

Im Getting this error. Tried a lot but couldnt get through:
NoReverseMatch at /boards/1/topics/1/
Reverse for 'boards_topics' with arguments '('',)' not found. 1 pattern(s) tried: ['boards/(?P\d+)/$']

Did you later figure this out?

The numbering of topics does not start newly for every board, but is global for all topics, regardless of the board, they are created in. Therefore topics/1/ refers to the first topic you created on the whole forum. If this was in a different board, then boards/1/topics/1/ does not exist. There might exist boards/2/topics/1/ or boards/3/topics/1/ or ... depending on the board, where you created the very first topic. Also you might find boards/1/topics/2/ or boards/1/topics/3/ or ... depending on the order in which you created topics.