Ok, Sorry.
I asked in the zodb as well, I found some people asking about zodb here so
I did it. Sorry again
El miércoles, 23 de abril de 2014 22:11:57 UTC, Ariel Argañaraz escribió:
>
> Hi, I have a problem with threads.
>
> The documentation says:
> A process with multiple threads will often have multiple connections to
> the same database, with different threads having different connections.
>
> But I don't Know if I create different connections in the right way.
>
> I have 2 threads.
>
> In the main.py, the connection works well with this:
> #main.py
>
> db = ZODB.config.databaseFromURL('configs/database.conf')
> connection = db.open()
> root = connection.root()
>
> I have a function that change something in the object I want to persist.
> When I use this function locally all works perfect, The element is updated
> and saved.
> def changePos(self, x):
> """a function to change the x position of an element"""
> self.element._x = x
> self._p_changed = True
> transaction.commit()
> print "change success"
>
> The second thread is launched from the main.py. It is a xml-rpc server.
> That serves the mentioned method "changePos()"
> i create the connection in that thread like this.
> db2 = ZODB.config.databaseFromURL('configs/database.conf')
> connection2 = db2.open()
> root2 = connection2.root()
>
> But the problem is that, when I call "changePos(3)" with a xml-rpc client.
> It seems to do the job because it changes the X value and print the "change
> success" message but when I stop the main.py and inspect the X value from
> the data.fs with the Eye program or with another python script to show the
> X value I can see that the X value is not "3" as I would expect. So the
> change was not commited!
>
> Can someone give some help with this? maybe i am doing something wrong, or
> if anyone has an example of how to deal with threads, i 'd be very
> gratefull.
>
> BTW: I try to use the ZEO and I made and example with 2 diferent process
> and it works but I can't do it with 2 threads!
>
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