Hey koen, I did try this->mapClass… and *this->mapClass first, because that would be natural if the class is itself the «session». It didn’t change the error message even. Im not sure if Ive identified all thats going on in setting up the connectionPool and how its used yet. It is a bit more complicated in the blog example as I assume you would share the connection between several bloggers, while I only want to make a connection that I send to some methods one at a time, because they are writing data to 5 tables in the database. I just preferably dont want to pass all the login parameters every time I want to post a new data set to the database, as it is time consuming and not good practice.
If I go back to the original code I pasted on here and change
session.setConnection to session.setConnectionPool, the pass a pointer to the
session instead the session as a value…. would that be possible? Id love to
have a simpler example for my usage than the blog example, not that its so
complex, but there are a whole lot of different classes and headers to switch
between on 13 inches ;)
Yeah, I have a couple of books available and use cplusplus.com and google for
reference, unfortunately you dont have that many users of Wt yet, so that
narrows down the possible sources of information a bit, but I really like the
idea of Wt and feel like Im starting to grasp c++, so Ill continue using it.
Regards,
Tor
21. mars 2014 kl. 12:12 skrev Koen Deforche <k...@emweb.be>:
> Hey Tor,
>
> 2014-03-21 11:48 GMT+01:00 Tor Arne Fallingen <fallin...@gmail.com>:
> Hey again koen,
>
> Im using the blog example, looking at the code and how its structured, plus
> using your library descriptions to try and understand how I would adopt the
> connection pool to my application. Im a little uncertain about something here
> and feel like asking you a question. First, let me paste a little part of the
> code from BlogSession:
>
> BlogSession::BlogSession(dbo::SqlConnectionPool& connectionPool)
> : connectionPool_(connectionPool),
> users_(*this)
> {
> setConnectionPool(connectionPool_);
> mapClass<Comment>("comment");
>
> mapClass<Post>("post");
>
>
> The way I used mapClass before, I preceded it with the session created by the
> connection, but here is seems like setConnectionPool creates a
> connection/session for the method, but is it then owned by users_(*this) <-I
> assume this is the user that logs on his blog and so on. The issue I run into
> is that I dont have any users defined, the application is not going to allow
> more than one user to access the db simultaneously (this is defined in the
> specification of its functionality). And I have a feeling that the binding of
> users_(*this) is part of defining the connection. Im sorry I dont have more
> experience with c++, but Im trying hard. When I remove users_(*this), I get
> errors that both setConnectionPool and mapClass are undeclared identifiers.
> But Ive used session.mapClass previous in my methods in the same class… How
> do I do this? I understand that I need to somehow append session to the whole
> class, dont I?
>
> BlogSession specializes Dbo::Session and thus mapClass<Post>("post") is the
> same as this->mapClass<Post>("post"). That's what you were overlooking? To
> brush up your C++ you are probably best of taking a C++ book at hand.
>
> Regards,
> koen
>
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