如何将一个模板包含在另一个模板中？

Question

我是编程新手，我正在寻找是否有一种方法，我可以包括一个模板内的其他模板。我正在做一个项目，我想在同一页上显示某个主题的内容和抽认卡，以测试我对这个主题的知识，当我试图在同一页上显示我的卡时卡住了(我只能使用另一个网址)。这是我到目前为止所知道的：

models.py：

class Topic(models.Model):
    author = models.ForeignKey(
        User, related_name="topic", on_delete=models.CASCADE, null=True)
    title = models.CharField(max_length=100)
    body = RichTextUploadingField(blank=True, null=True)
    created_at = models.DateTimeField(auto_now_add=True)
    slug = models.SlugField(max_length=120)

    class Meta:
        ordering = ["title"]

    def __str__(self):
        return self.title

    def get_absolute_url(self):
        return reverse('topic:topic-detail', kwargs={
                       "topic_slug": self.slug,})

class Deck(models.Model):
    deckTopic = models.ForeignKey(
        Topic, null=True, blank=True, on_delete=models.CASCADE)
    description = models.CharField(max_length=510, null=False, blank=True)
    is_active = models.BooleanField(default=False)

    def __str__(self):
        return self.description

    def get_number_of_cards(self):
        '''
        Returns the number of cards in the decks related card_set
        '''
        return self.card_set.count()
    get_number_of_cards.short_description = 'Card Count'


class Card(models.Model):
    parentDeck = models.ForeignKey(Deck, on_delete=models.CASCADE)
    front = models.TextField()
    back = models.TextField()

    def __str__(self):
        return self.front

    def has_prev_card(self):
        '''
        Returns true if card is not thee first card in the deck.
        '''
        first_card_in_deck = self.parentDeck.card_set.first()
        if self == first_card_in_deck:
            return False
        return True

    def get_prev_card(self):
        '''
        Return previous card in deck
        '''
        return self.parentDeck.card_set.filter(id__lt=self.id).last()

    def has_next_card(self):
        '''
        Returns true if card is not the last card in the deck.
        '''
        last_card_in_deck = self.parentDeck.card_set.last()
        if self == last_card_in_deck:
            return False
        return True

    def get_next_card(self):
        '''
        Return next card in deck
        '''
        return self.parentDeck.card_set.filter(id__gt=self.id).first()

views.py：

class TopicDetailView(DetailView):
    model = Topic

def viewDeck(request, deck_id):
    '''
    Gets the deck from the database.
    Return first card in deck unless card_id is specified in url.
    '''

    deck_obj = get_object_or_404(Deck, id=deck_id)
    card_list = deck_obj.card_set.all()
    card_obj = card_list.first()
    if request.method == 'GET' and 'card' in request.GET:
        card_obj = get_object_or_404(Card, id=request.GET['card'])

    context = {
        'deck_obj': deck_obj,
        'card_obj': card_obj,
    }
    return render(request, 'topic/viewDeck.html', context)

topic_detail.html：

{% extends 'base.html' %}
{% block content %}
<div class="topic-title">
        <h5 class="mb-0">
        {{object.title}}
        </h5>
</div>

<div class="topic-body">
        <p class="mb-0">
        {{object.body}}
        </p>
</div>

<!--Here is where I want to include the flashcard--!>
 <div class="topic-deck">                    
       {% for deck in object.deck_set.all %}
       {{deck.description}}
       <a href="{% url 'topic:viewDeck' deck.id %}">Flashcard</a>
       {% endfor %}
</div>
{% endblock %}

viewDeck.html：

{% extends 'base.html' %}

{% block content %}
<div class="deck-container">
    <div class="deck-header">
        <div class="deck-header-title">
            <h1>{{deck_obj}}</h1>
        </div>

        <div class="deck-header-actions">
            <p>Return to Topic</p>
        </div>
    </div>

    <hr>

    {% if card_obj %}
    <div class="notecard">
        <div class="notecard-nav text-center">
            {% if card_obj.has_prev_card %}
            <a href="{% url 'topic:viewDeck' deck_obj.id %}?card= 
            {{card_obj.get_prev_card.id}}">Prev</a>
            {% endif %}
            {% if card_obj.has_next_card %}
            <a href="{% url 'topic:viewDeck' deck_obj.id %}?card= 
            {{card_obj.get_next_card.id}}">Next</a>
            {% endif %}
        </div>
        <div class="notecard-front">
            <p class="text-center">Front</p>
            <p>{{card_obj.front}}</p>
        </div>
        <div class="notecard-back">
            <p class="text-center">Back</p>
            <p>{{card_obj.back}}</p>
        </div>
    </div>


    {% else %}

    <p>No card found.</p>

    {% endif %}

</div>
{% endblock %}

有没有办法在topic_detail.html中看到deckView？如果我没说清楚，很抱歉。

更新:我尝试插入{% include 'viewDeck.html‘%}，将上下文deck_obj、card_list和card_obj传递给topic_detail.html，但它给我这个错误: NameError:名称'deck_id’未定义。我该如何解决这个问题呢？

谢谢。

Answer 1

您是否正确构建了url？为了能够像在视图中那样传递deck_id，您必须通过在urls.py中编写类似以下内容来告诉url您想要传递一些数据：

from name_of_your_app import views

url(r'deck/(?P<deck_id>\d+)/$', views.viewDeck , name='name_of_you_url'),

(?P\d+)是重要的部分，因为它指示您将收到一个可以使用名称"deck_id“调用的数值数据。