I write an app with google app engine. It is a simple blog system. If I delete a piece of blog, the page didn't refresh as I wish. It still present the blog that has been deleted.But if I refresh the page after that, it will present in the correct way. I though it was the problem of cache. I have been working on it for serveral days. Could anyone teach me how to fix it? Thanks very much.
class BlogFront(BlogHandler):
def get(self):
val = self.request.get("newPost")
#get all the pages
posts = Post.all().order('-created')
#stop the cache in the browser
self.response.headers["Pragma"]="no-cache"
self.response.headers["Cache-Control"]="no-cache, no-store, must-revalidate, pre-check=0, post-check=0"
self.response.headers["Expires"]="Thu, 01 Dec 1994 16:00:00"
self.render('front.html', posts = posts)
def post(self):
#press the delete button
operatorRequest = self.request.get('Delete')
articleId = operatorRequest.split('|')[0]
operator = operatorRequest.split('|')[1]
key = db.Key.from_path('Post', int(articleId), parent=blog_key())
post = db.get(key)
db.delete(post.key())
self.redirect("/")
