Django filter（）查询集问题

Question

I want to show only specific cards, related with specific post:

UPDATE:

Current issue:

Internal Server Error: /board/table/card/create/
Traceback (most recent call last):
  File "C:\Program Files\Python36\lib\site-packages\django\core\handlers\excepti
on.py", line 41, in inner
    response = get_response(request)

Answer 1

You can access directly your cards by doing board.cards

def board_detail(request, slug):
    board = get_object_or_404(Board, title=slug)
    cards = board.cards
    # ___________^

    template = 'board/board_detail.html'
    context = {'board': board, 'cards': cards}

    return render(request, template, context)

And then in your template:

{% for card in cards %}
    <p>{{ card.title_card }}</p>
{% endfor %}

Answer 2

Why access the model manager of cards? If you only want the cards for that board, try board.cards. And you can filter that further