def create_article(bustopic,title="Root", article_kwargs={}, content="",user_message="",request=None):
"""Utility function:
Create a new urlpath with an article and a new revision for the article"""
article = Article(**article_kwargs)
ar = ArticleRevision()
ar.content = content
ar.user_message = user_message
ar.deleted = False
if request:
ar.set_from_request(request)
else:
ar.ip_address = None
ar.user = get_default_user()
article.add_revision(ar, save=True)
article.save()
bustopic.article=article
bustopic.save()
return ar
