Hi,
I am currently trying to use Twisted to develop my Web-based application. And I
am trying to use twisted.enterprise.adbapi to handle my database connection and
etc. I tried the example provide by the online docs.
It work ONLY with print, without return a value for my Mako template. Can
someone give a small example that lighten me how to use it?
Here is some of my code.
-----database.py-----------
from twisted.enterprise import adbapi
from twisted.internet import defer
class DBModule():
connection_pool = adbapi.ConnectionPool("psycopg2", host = "localhost",
database = "2juban" ,user = "2juban", password = "2juban" )
table = " "
def findById(self, field, id):
if field =="all":
field = "*"
query = """SELECT """+field+""" from """+ self.table +""" where id="""
+ str(id)
row = self.connection_pool.runQuery(query)
return row.addCallback(self.print_data)
def print_data(self, data):
print data
#return data
----hello.rpy-------
...
from tpp.module.database import DBModule
class hello(Controller):
d = DBModule()
d.table = 'talk_talk'
t1 = d.findById('content',2)
...
..
.
The problem is when I just print out the value , it works ! I can saw it in my
eclipse console. But if I want to get the return of the value, it's nothing
rather a Deferred<>.
Thanks.
_________________________________________________________________
Connect to the next generation of MSN Messenger
http://imagine-msn.com/messenger/launch80/default.aspx?locale=en-us&source=wlmailtagline
_______________________________________________
Twisted-web mailing list
[email protected]
http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-web
