Question

抱歉，我在这里结束了我的智慧。我有这个代码在本地工作，但由于某些原因在服务器上，当我尝试运行此标签时，我得到一个错误，我不明白为什么。这是模板代码：

{% 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

这是我得到的错误：

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 %}

所以是的，我不知道为什么没有看到这个模板标签文件。它里面还有一个 init .py文件，所以不是这样。最好的，谢谢你的帮助，

杰克

Answer 1

您是否直接在Mezzanine中编辑keyword_tags.py文件？

你不应该 - 所以如果你做了正确的事情并以某种方式将其复制到你的项目或应用程序中，那么Mezzanine版本可能会被加载，而不是你的版本。尝试给它一个不同的名称，以免它们发生碰撞。

无效的块标记：'keywords_for_order'，预期'endblock'

1 个答案: