无效区块标签:'keywords_for_order',期望'endblock

2 投票
1 回答
1011 浏览
提问于 2025-04-17 17:21

抱歉,我现在真的很困惑。我在本地运行这段代码没问题,但在服务器上运行这个标签时却出现了错误,我完全不知道为什么。以下是模板代码:

{% load blog_tags keyword_tags i18n future %}

{% block blog_keywords %}
{% keywords_for_order blog.blogpost as tags %}
{% if tags %}
<h3>{% trans "Tags" %}</h3>
<ul class="unstyled tags">
{% for tag in tags %}
<li>
    <a href="{% url "blog_post_list_tag" tag.slug %}"
        class="tag-weight-1">{{ tag }}</a>
    ({{ tag.item_count }})
</li>
{% endfor %}
</ul>
{% endif %}
{% endblock %}

这是keyword_tags.py文件:

from django.contrib.contenttypes.models import ContentType
from django.db.models import Model, Count

from mezzanine import template
from mezzanine.conf import settings
from mezzanine.generic.fields import KeywordsField
from mezzanine.generic.models import AssignedKeyword, Keyword


register = template.Library()

@register.as_tag
def keywords_for(*args):
    """
    Return a list of ``Keyword`` objects for the given model instance
    or a model class. In the case of a model class, retrieve all
    keywords for all instances of the model and apply a ``weight``
    attribute that can be used to create a tag cloud.
    """

    # Handle a model instance.
    if isinstance(args[0], Model):
        obj = args[0]
        if hasattr(obj, "get_content_model"):
            obj = obj.get_content_model() or obj
        # There can only be one ``KeywordsField``, find it.
        for field in obj._meta.many_to_many:
            if isinstance(field, KeywordsField):
                break
        else:
            return []
        keywords_manager = getattr(obj, field.name)
        return [a.keyword for a in keywords_manager.select_related("keyword")]

    # Handle a model class.
    try:
        app_label, model = args[0].split(".", 1)
    except ValueError:
        return []

    content_type = ContentType.objects.get(app_label=app_label, model=model)
    assigned = AssignedKeyword.objects.filter(content_type=content_type)
    keywords = Keyword.objects.filter(assignments__in=assigned)
    keywords = keywords.annotate(item_count=Count("assignments"))
    if not keywords:
        return []
    settings.use_editable()
    counts = [keyword.item_count for keyword in keywords]
    min_count, max_count = min(counts), max(counts)
    sizes = settings.TAG_CLOUD_SIZES
    step = (max_count - min_count) / (sizes - 1)
    if step == 0:
        steps = [sizes / 2]
    else:
        steps = range(min_count, max_count, step)[:sizes]
    for keyword in keywords:
        c = keyword.item_count
        diff = min([(abs(s - c), (s - c)) for s in steps])[1]
        keyword.weight = steps.index(c + diff) + 1
    return keywords



@register.as_tag
def keywords_for_order(*args):


    # Handle a model instance.
    if isinstance(args[0], Model):
        obj = args[0]
        if hasattr(obj, "get_content_model"):
            obj = obj.get_content_model() or obj
        # There can only be one ``KeywordsField``, find it.
        for field in obj._meta.many_to_many:
            if isinstance(field, KeywordsField):
                break
        else:
            return []
        keywords_manager = getattr(obj, field.name)
        return [a.keyword for a in keywords_manager.select_related("keyword")]

    # Handle a model class.
    try:
        app_label, model = args[0].split(".", 1)
    except ValueError:
        return []

    content_type = ContentType.objects.get(app_label=app_label, model=model)
    assigned = AssignedKeyword.objects.filter(content_type=content_type)
    keywords = Keyword.objects.filter(assignments__in=assigned)
    keywords = keywords.annotate(item_count=Count("assignments")).order_by('-item_count')[:2]
    if not keywords:
        return []

    return keywords

我遇到的错误是:

Error during template rendering

In template /home/USERNAME/webapps/lion_dev/lion/roar/templates/blog/includes/tagcloud_panel.html, error at line 4
Invalid block tag: 'keywords_for_order', expected 'endblock'

1   {% load blog_tags keyword_tags i18n future %}
2   
3   {% block blog_keywords %}
4   {% keywords_for_order blog.blogpost as tags %}
5   {% if tags %}
6   <h3>{% trans "Tags" %}</h3>
7   <ul class="unstyled tags">
8   {% for tag in tags %}
9   <li>
10      <a href="{% url "blog_post_list_tag" tag.slug %}"
11          class="tag-weight-1">{{ tag }}</a>
12      ({{ tag.item_count }})
13  </li>
14  {% endfor %}

所以,我真的搞不懂为什么这个模板标签文件没有被识别。里面也有一个init.py文件,所以不是这个问题。谢谢大家的帮助!

杰克

1 个回答

1

你是在直接编辑Mezzanine里的keyword_tags.py文件吗?

其实你不应该这么做。如果你做对了,把这个文件复制到你的项目或者应用里了,那很可能还是在加载Mezzanine里的版本,而不是你自己的版本。你可以试着给它起个不同的名字,这样就不会冲突了。

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