基于@markwalker_ 的回答。我通过 3 个步骤成功完成了这项工作
第 1 步 - 在页面扩展中添加 FontAwesomeField:
https ://docs.django-cms.org/en/latest/how_to/extending_page_title.html
为了记录,这里是我的代码:在 models.py
from django.db import models
# Create your models here.
from cms.extensions import PageExtension
from cms.extensions.extension_pool import extension_pool
class IconExtension(PageExtension):
image = models.ImageField(upload_to='icons', null=True, blank=True)
fontawesomeicon = models.CharField(max_length=100, null=True, blank=True)
extension_pool.register(IconExtension)
在 admin.py
from django.contrib import admin
from cms.extensions import PageExtensionAdmin
from .models import IconExtension
class IconExtensionAdmin(PageExtensionAdmin):
pass
admin.site.register(IconExtension, IconExtensionAdmin)
在 cms_toolbars.py
from cms.toolbar_pool import toolbar_pool
from cms.extensions.toolbar import ExtensionToolbar
from django.utils.translation import gettext_lazy as _
from .models import IconExtension
@toolbar_pool.register
class IconExtensionToolbar(ExtensionToolbar):
# defines the model for the current toolbar
model = IconExtension
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 in position 0 (at the top of the menu)
current_page_menu.add_modal_item(_('Page Icon'), url=url,
disabled=not self.toolbar.edit_mode_active, position=0)
第 2 步 - 实现导航修改器
https://docs.django-cms.org/en/latest/how_to/menus.html#navigation-modifiers
在 cms_menu.py
from menus.base import Modifier
from menus.menu_pool import menu_pool
from cms.models import Page
class AddIconModifier(Modifier):
"""
This modifier makes the changed_by attribute of a page
accessible for the menu system.
"""
def modify(self, request, nodes, namespace, root_id, post_cut, breadcrumb):
if breadcrumb:
return nodes
# Only on last iteration (Voir : https://docs.django-cms.org/en/latest/how_to/menus.html#navigation-modifiers)
if not post_cut:
return nodes
# only consider nodes that refer to cms pages
# and put them in a dict for efficient access
page_nodes = {n.id: n for n in nodes if n.attr["is_page"]}
# retrieve the relevent pages
pages = Page.objects.filter(id__in=page_nodes.keys())
# loop over all relevant pages
for page in pages:
# take the node referring to the page
node = page_nodes[page.id]
if hasattr(page, 'iconextension') and hasattr(page.iconextension ,'fontawesomeicon'):
node.attr["faicon"] = page.iconextension.fontawesomeicon
else:
node.attr["faicon"] = 'fa-arrow-circle-right'
return nodes
menu_pool.register_modifier(AddIconModifier)
第 3 步 - 特定导航模板
在我的主模板中:
{% show_menu 0 100 100 100 "partials/navigation.html" %}
在我的导航模板 (navigation.html)
{% load cms_tags menu_tags cache %}
{% for child in children %}
<li class="nav-item">
<a class="nav-link" href="{{ child.attr.redirect_url|default:child.get_absolute_url }}"><i class="fas fa-fw {{ child.attr.faicon }}"></i>{{ child.get_menu_title }}</a>
{% if child.children %}
<ul class="sub_menu">
{% show_menu from_level to_level extra_inactive extra_active template '' '' child %}
</ul>
{% endif %}
</li>
{% endfor %}