Hi all

In most cases, web application has a database for it's own use.  It
allow users to change data and present data to user.  It dose not have
to know any other programs but the database.  I think Django is perfect
for this kind of use.

I hope my problem would be the same.  I have to write a server which
store its data in a db and do right job according to the data.  And I
have to give user an web interface which allow them to change the data
and so change the behavior of the server.

With the help of Django, it would be very easy to create an web
interface for changing data.  But, how can I notify the server that the
data has been changed?

I thought there are 2 ways to solve this problem, but I am not sure
which one is better.

1.  Do not cache any data in my server, just fetch it from database on
demand.  Perhaps this is not efficient enough.

2. Design a protocol to notify the server that data has been changed.

What do u think about it?  Is any better choices?


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