Question

大家好我在Django-cms创建我的第一页扩展名我保存信息购买我可以再次获得

我的模特就像这样

class PageDescriptionExtension(PageExtension):
    description_page = models.TextField('description',
      default = None,
      help_text = 'Please provide a small description about this page',
      max_length = 250,
      )
    image = models.ImageField(upload_to='icons')

extension_pool.register(PageDescriptionExtension)

我的admin.py就是这个

class PageDescriptionExtensionAdmin(PageExtensionAdmin):
    pass

admin.site.register(PageDescriptionExtension, PageDescriptionExtensionAdmin)

和我的工具栏

class PageDescriptionExtensionToolbar(ExtensionToolbar):
    # defines the model for the current toolbar
    model = PageDescriptionExtension

    def populate(self):
        # setup the extension toolbar with permissions and sanity checks
        current_page_menu = self._setup_extension_toolbar()
        # if it's all ok
        if current_page_menu:
            # retrieves the instance of the current extension (if any) and the toolbar item URL
            page_extension, url = self.get_page_extension_admin()
            if url:
                # adds a toolbar item
                current_page_menu.add_modal_item(_('Description page'), url=url,
                    disabled=not self.toolbar.edit_mode)

当我尝试下注元素

时，我的模板中没有

{% if request.current_page.pagedescriptionextension %}
  <img src="{% static request.current_page.pagedescriptionextension.image.url %}">
{% else %}
  here
{% endif %}

此代码打印here我在主页request.current_page中执行此操作返回主页，但request.current_page.pagedescriptionextension不返回任何内容，对此有任何想法。

提前感谢

Answer 1

要在菜单中显示页面扩展名（例如，要启用菜单中显示的页面图标），首先需要将图标信息添加到navigation node。在下面的代码段中，我添加了获取pagemenuiconextension的功能，其定义与您的网页扩展名非常相似。菜单扩展名需要放在cms_menus.py：

中

from menus.base import Modifier
from menus.menu_pool import menu_pool
from raven.contrib.django.raven_compat.models import client

from cms.models import Page

class MenuModifier(Modifier):
    """
    Injects page object into menus to be able to access page icons
    """
    def modify(self, request, nodes, namespace, root_id, post_cut, breadcrumb):
        # if the menu is not yet cut, don't do anything
        if post_cut:
            return nodes

        for node in nodes:

            try: 
                if "is_page" in node.attr and node.attr["is_page"]:

                    class LazyPage(object):
                        id = node.id
                        page = None
                        def pagemenuiconextension(self):
                            try:
                                if not self.page:
                                    self.page = Page.objects.get(id=self.id)
                                return self.page.pagemenuiconextension
                            except AttributeError, ae:
                                # print ae
                                return False
                            except Exception, e:
                                print e
                                client.captureException()

                    node.pageobj = LazyPage()

                else:
                    pass
            except Exception, e:
                client.captureException()

        return nodes

menu_pool.register_modifier(MenuModifier)

然后你可以在菜单文件（相应菜单项的片段）中访问它：

<div class="{{ child.pageobj.pagemenuiconextension.menu_navicon }}" style="height: 16px;">{{ child.get_menu_title }}</div>

页面扩展名如下所示：

class PageMenuIconExtension(PageExtension):

    class Meta:
        verbose_name = _("menu and robots settings")
        verbose_name_plural = _("menu and robots settings")

    menu_navicon = models.CharField(
        _("Page icon"),
        choices=MENU_ICON_CHOICES,
        blank=True,
        max_length=50        
    )

在我的情况下，我使用下拉列表选择一个类，而不是图像本身，但如果您使用任何其他数据，原则是相同的。

在Django中扩展页面

1 个答案: