Question

我创建了一个HackerNews克隆。然后，用户可以获得投票，提交故事等权限。每个用户在登录时都有会话ID，我已经测试过，我认为工作得很好。

但是，当我在视图之间切换时（例如，从localhost /到localhost / science），所有这些权限似乎都消失了。

以下是views.py：

的一部分

def index(request, category_id=1):
    stories = top_stories(top=30)
    category = Category.objects.get(id = category_id)
    if request.user.is_authenticated():
        liked_stories = request.user.liked_stories.filter(id__in = [story.id for story in stories])
    else: 
        liked_stories = []
    return render(request, 'stories/index.html', {
        'stories': stories,
        'user': request.user,
        'liked_stories': liked_stories,
        'category': category,
        })

这是我的类别功能，它基本上对特定类别的所有故事进行排序：

def category(request, category_name):
    template = 'stories/category.html'
    category = Category.objects.get(category_name = category_name)
    return render_to_response(template, {
        'category': category
        })

当我转到localhost / {{category}}链接时，投票和提交故事等所有权限似乎都消失了。

这是我的base.html：

 <body>
        <div id = "content">
            <div id = "header">
                {% if user.is_authenticated %}
                    <div id = "user-info">{{user.username }} | <a href = "/story/">sumbit</a> | <a href = "/logout/">logout</a></div>

                {% else %}

                    <div id = "user-info"><a href = "/login/">Login</a></div>
                    <div id = "user-info"><a href = "/register/">Sign Up</a></div>

                {% endif %}
                <div id = "site-title"><h1><a href = "/">newsfeed</a></h1></div>
            </div>
            {% block content %}
            {% endblock content %}
        </div>
    </body>

index.html：

<ol>
{% for story in stories %}
    <li>
        <p class = "story-title">
        {% if user.is_authenticated and story not in liked_stories %}
            <a href = "/vote/" id = "story-vote-{{ story.id }}" class = "vote"><img src = "static/images/arrow.png" height = "20px" width = "20px"></a>
            <a href = "{{ story.url }}" id = "story-title-{{ story.id }}" target="_blank">{{story.title}} </a> <span class = "domain"> ({{ story.domain}}) </span>
        {% else %}
            <a href = "{{ story.url }}" style = "margin-left: 15px;" target="_blank">{{story.title}} </a> <span class = "domain"> ({{ story.domain}}) </span>
        {% endif %}
        </p>

        <p class = "story-info">
            {{story.points}} points by {{ story.moderator.username }} {{story.created_at|age}} | <a href = "{{ story.category.category_name }}/{{ story.id }}/"> comment </a>
            | <a href = "/{{ story.category.category_name }}/">{{ story.category }} </a>
        </p>
    </li>


{% endfor %}
</ol>

和category.html：

<ol>
{% for story in category.story_set.all %}
    <li>
        <p class = "story-title">
        {% if user.is_authenticated and story not in liked_stories %}
            <a href = "/vote/" id = "story-vote-{{ story.id }}" class = "vote"><img src = "static/images/arrow.png" height = "20px" width = "20px"></a>
            <a href = "{{ story.url }}" id = "story-title-{{ story.id }}" target="_blank">{{story.title}} </a> <span class = "domain"> ({{ story.domain}}) </span>
        {% else %}
            <a href = "{{ story.url }}" style = "margin-left: 15px;" target="_blank">{{story.title}} </a> <span class = "domain"> ({{ story.domain}}) </span>
        {% endif %}
        </p>

        <p class = "story-info">
            {{story.points}} points by {{ story.moderator.username }} {{story.created_at|age}} | <a href = "{{ story.id }}/"> comment </a>
            | <a href = "/{{ story.category.category_name }}/">{{ story.category }} </a>
        </p>
    </li>
{% endfor %}
</ol>

我有什么遗漏可以纠正这个问题吗？此外，如果您需要任何其他文件，请在评论中告诉我。卢卡

Answer 1

索引视图有效，因为您在模板上下文中包含user。如果您启用了auth context processor（默认情况下是这样），那么您实际上不需要将用户包含在模板上下文中，因为您使用的是render快捷方式。

return render(request, 'stories/index.html', {
    'stories': stories,
    'liked_stories': liked_stories,
    'category': category,
    })

category视图无效，因为您使用的是render_to_response，并且未在模板上下文中明确包含user。

您可以通过添加render_to_response（the docs）来使其与context_instance一起使用，但最简单的解决方法是使用类别视图的render快捷方式好。

return render(request, template, {
    'category': category
    })

当我在视图之间切换时，为什么我的用户权限会消失？

1 个答案: