def api_edit_blog(request, *, id, name, summary, content):
"""edit the blog:
if exist id: update the blog
else: save the blog
"""
check_admin(request)
if not name or not name.strip():
raise APIValueError('name', 'blog name cannot be empty.')
if not summary or not summary.strip():
raise APIValueError('summary', 'blog summary cannot be empty.')
if not content or not content.strip():
raise APIValueError('content', 'blog content cannot be empty.')
# save the blog
if id == '':
blog = Blog(user_id=request.__user__.id, user_name=request.__user__.name, user_image=request.__user__.image,
name=name.strip(), summary=summary.strip(), content=content.strip())
yield from save_model(blog)
# update the blog
else:
blog = yield from find_model(model='blog', id=id)
blog.name = name
blog.summary = summary
blog.content = content
yield from update_model(blog)
return blog
