Question

我是Django的初学者。

我有一个包含以下模型的项目：

我的文章模型：

class Post(models.Model):
    title = models.CharField(max_length=200)
    slug = models.SlugField(max_length=160)
    content = models.TextField()
    image = models.ImageField(upload_to=upload_location)
    timestamp = models.DateTimeField(auto_now=False, auto_now_add=True)
    updated = models.DateTimeField(auto_now=True, auto_now_add=False)
    categorie = models.CharField(max_length=200)
    categorie = models.ForeignKey('categorie.Categorie')
    publier = models.BooleanField()

我的投资组合类别模型与我的文章模型相关联：

class Categorieport(models.Model):
    title = models.CharField(max_length=200)
    article = models.OneToOneField('posts.Post')

最后，我的投资组合模型包含所有照片：

class Portfolio(models.Model):
    title = models.CharField(max_length=200)
    image = models.ImageField(upload_to=upload_location)
    timestamp = models.DateTimeField(auto_now=False, auto_now_add=True)
    updated = models.DateTimeField(auto_now=True, auto_now_add=False)
    categorieportfolio = models.ForeignKey('Categorieport')

在一个视图和一个模板中，我想显示有关文章和与文章相关的投资组合的信息。

我写了以下观点：

def portfolio(request, article=None):
    portfolio = get_object_or_404(Categorieport, article=article)
    image_portfolio = portfolio.portfolio_set.all()
    return render(request, 'portfolio1.html', {'portfolio': portfolio, 'image_portfolio': image_portfolio})

以下模板：

<div class="titre-display">
    <h2>{{ portfolio.article.timestamp|date:"d E Y" }} / {{ portfolio.article.categorie}} </h2>
    <h1>{{ portfolio.article.title}}</h1>
</div>  

<div class="content-display">
    <div class="content-display-main">
        <div class="content-display-main-portfolio">
            <div class="image-portfolio">
                <a class="example-image-link" href="{{ image_portfolio.image.url }}" data-lightbox="example-set" data-title="{{image_portfolio.title}}">
                </a>

我可以访问我文章中的信息，但我无法访问我的投资组合中的信息。我用shell试了一下，它有效。我无法弄清楚为什么它在我的视图和模板中不起作用。

你有什么想法吗？

提前谢谢

Singertwist

Answer 1

试试这个：

# views.py

def portfolio(request, article=None):
    # first get the Post instance with slug = article (I'm assuming article passed as url argument, is a slug)
    post = get_object_or_404(Post, slug=article)

    # get the Categoriepost object based on a specifi article
    categorie_port = get_object_or_404(Categorieport, article=post)

    # image_portfolio is a QuerySet (that is a list of Portfolio objects)
    image_portfolio = categorie_port.portfolio_set.all()

    return render(request, 'portfolio1.html', {'portfolio': categorie_port, 'image_portfolio': image_portfolio})

保持HTML原样。

Answer 2

您的image_portfolio是一个querySet，它意味着某种列表，您必须使用循环来访问这些项目并访问这些属性：

<div class="content-display">
    <div class="content-display-main">
        <div class="content-display-main-portfolio">
            <div class="image-portfolio">
           {% for item_img in image_portfolio %}     
                <a class="example-image-link" href="{{ item_img.image.url }}" data-lightbox="example-set" data-title="{{item_img.title}}"></a>
            {% endfor %}

Answer 3

大家好，谢谢大家的答复。

所以，我使用了for循环来解决我的案例，如前所述。

下面，我的代码：

  <div class="titre-display">
        <h2>{{ portfolio.article.timestamp|date:"d E Y" }} / {{ portfolio.article.categorie}} </h2>
        <h1>{{ portfolio.article.title}}</h1>
    </div>  

    <div class="content-display">

        <div class="content-display-main">

        <div class="content-display-main-portfolio">


              {% for photo in image_portfolio %}  

              <div class="image-portfolio">

              <a class="example-image-link" href="{{ photo.image.url }}" data-lightbox="example-set" data-title="{{photo.title}}">

            {% thumbnail photo.image "300x300" crop="center" as im %}
                <img class="example-image" src="{{ im.url }}" alt=""/>
            {% endthumbnail %}    

              </a>
              <p>{{photo.title}}</p>
              </div>

            {% empty %}

                <p>Aucun portfolio.</p>

            {% endfor %}          

        </div>            

        </div>

我的意见：

def portfolio(request, slug=None, article=None):
slug = get_object_or_404(Post, slug=slug)
portfolio = get_object_or_404(Categorieport, article=article)
image_portfolio = portfolio.portfolio_set.all()
return render(request, 'portfolio.html', {'portfolio': portfolio, 'image_portfolio': image_portfolio})

再次感谢您的帮助

Singertwist

使用渲染将多个对象传递给模板

3 个答案: