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djangocms-text-ckeditor/djangocms_text_ckeditor/utils.py

102 lines
3.5 KiB
Python

import os
import re
from cms.models import CMSPlugin
from distutils.version import LooseVersion
import django
from django.core.files.storage import get_storage_class
from django.template.defaultfilters import force_escape
from django.utils.functional import LazyObject
OBJ_ADMIN_RE_PATTERN = r'<img [^>]*\bid="plugin_obj_(\d+)"[^>]*/?>'
OBJ_ADMIN_RE = re.compile(OBJ_ADMIN_RE_PATTERN)
def plugin_to_tag(obj):
return u'<img src="%(icon_src)s" alt="%(icon_alt)s" title="%(icon_alt)s" id="plugin_obj_%(id)d" />' % \
dict(id=obj.id,
icon_src=force_escape(obj.get_instance_icon_src()),
icon_alt=force_escape(obj.get_instance_icon_alt()),
)
def plugin_tags_to_id_list(text, regex=OBJ_ADMIN_RE):
ids = regex.findall(text)
return [int(id) for id in ids if id.isdigit()]
def plugin_tags_to_user_html(text, context, placeholder):
"""
Convert plugin object 'tags' into the form for public site.
context is the template context to use, placeholder is the placeholder name
"""
plugin_map = _plugin_dict(text)
def _render_tag(m):
plugin_id = int(m.groups()[0])
try:
obj = plugin_map[plugin_id]
obj._render_meta.text_enabled = True
except KeyError:
# Object must have been deleted. It cannot be rendered to
# end user so just remove it from the HTML altogether
return u''
return obj.render_plugin(context, placeholder)
return OBJ_ADMIN_RE.sub(_render_tag, text)
def replace_plugin_tags(text, id_dict):
def _replace_tag(m):
plugin_id = int(m.groups()[0])
new_id = id_dict.get(plugin_id)
try:
obj = CMSPlugin.objects.get(pk=new_id)
except CMSPlugin.DoesNotExist:
# Object must have been deleted. It cannot be rendered to
# end user, or edited, so just remove it from the HTML
# altogether
return u''
return u'<img src="%(icon_src)s" alt="%(icon_alt)s" title="%(icon_alt)s" id="plugin_obj_%(id)d" />' % \
dict(id=new_id,
icon_src=force_escape(obj.get_instance_icon_src()),
icon_alt=force_escape(obj.get_instance_icon_alt()),
)
return OBJ_ADMIN_RE.sub(_replace_tag, text)
def _plugin_dict(text, regex=OBJ_ADMIN_RE):
try:
from cms.utils.plugins import downcast_plugins
except ImportError:
from cms.plugins.utils import downcast_plugins
plugin_ids = plugin_tags_to_id_list(text, regex)
plugin_list = downcast_plugins(CMSPlugin.objects.filter(pk__in=plugin_ids), select_placeholder=True)
return dict((plugin.pk, plugin) for plugin in plugin_list)
"""
The following class is taken from https://github.com/jezdez/django/compare/feature/staticfiles-templatetag
and should be removed and replaced by the django-core version in 1.4
"""
default_storage = 'django.contrib.staticfiles.storage.StaticFilesStorage'
if LooseVersion(django.get_version()) < LooseVersion('1.3'):
default_storage = 'staticfiles.storage.StaticFilesStorage'
class ConfiguredStorage(LazyObject):
def _setup(self):
from django.conf import settings
self._wrapped = get_storage_class(getattr(settings, 'STATICFILES_STORAGE', default_storage))()
configured_storage = ConfiguredStorage()
def static_url(path):
'''
Helper that prefixes a URL with STATIC_URL and cms
'''
if not path:
return ''
return configured_storage.url(os.path.join('', path))