1. ODBC namespace identifier
Hi,
I am using odbc.e with the name space identifier ODBC in the
Begin area of WinMain() window.
include odbc.e as ODBC
I have also included a library mss.ew of my own routines after odbc.
include mss.ew
Now, I have written a procedure in mss.ew which accesses ODBC:getData()
function, but ODBC name space identifier is not recognised.
I get following error:
D:\EUPHORIA\IDE\Projects\Syndicate ODBC\mss.ew:155
ODBC has not been declared
rec_data = ODBC:getData(sysmsgs_hndl)
^
Only when I move the concerned procedure to the General area of the window
where ODBC is accessed, the name space identifier is recognized and system
works fine.
Is it a problem with ODBC or am I doing something wrong?
How can I avoid having my own routine outside mss.ew?
Regards,
Rad.
2. Re: ODBC namespace identifier
Rad wrote:
> I am using odbc.e with the name space identifier ODBC in the
> Begin area of WinMain() window.
>
> }}}
<eucode>
> include odbc.e as ODBC
> </eucode>
{{{
>
>
> I have also included a library mss.ew of my own routines after odbc.
>
> }}}
<eucode>
> include mss.ew
> </eucode>
{{{
>
>
> Now, I have written a procedure in mss.ew which accesses ODBC:getData()
> function, but ODBC name space identifier is not recognised.
>
> I get following error:
>
> D:\EUPHORIA\IDE\Projects\Syndicate ODBC\mss.ew:155
> ODBC has not been declared
> rec_data = ODBC:getData(sysmsgs_hndl)
> ^
>
> Only when I move the concerned procedure to the General area of the window
> where ODBC is accessed, the name space identifier is recognized and system
> works fine.
>
> Is it a problem with ODBC or am I doing something wrong?
> How can I avoid having my own routine outside mss.ew?
See section "Scope" in the reference manual:
http://www.rapideuphoria.com/refman_2.htm#42
| A namespace identifier has local scope. It is known only within the file
| that declares it, i.e. the file that contains the include statement.
| Different files might define different namespace identifiers to refer to
| the same included file.
When your library 'mss.ew' also contains a line such as
include odbc.e as ODBC
then your program should work as expected.
Regards,
Juergen
3. Re: ODBC namespace identifier
Juergen Luethje wrote:
>
> Rad wrote:
>
> > I am using odbc.e with the name space identifier ODBC in the
> > Begin area of WinMain() window.
> >
> > }}}
<eucode>
> > include odbc.e as ODBC
> > </eucode>
{{{
> >
> >
> > I have also included a library mss.ew of my own routines after odbc.
> >
> > }}}
<eucode>
> > include mss.ew
> > </eucode>
{{{
> >
> >
> > Now, I have written a procedure in mss.ew which accesses ODBC:getData()
> > function, but ODBC name space identifier is not recognised.
> >
> > I get following error:
> >
> > D:\EUPHORIA\IDE\Projects\Syndicate ODBC\mss.ew:155
> > ODBC has not been declared
> > rec_data = ODBC:getData(sysmsgs_hndl)
> > ^
> >
> > Only when I move the concerned procedure to the General area of the window
> > where ODBC is accessed, the name space identifier is recognized and system
> > works fine.
> >
> > Is it a problem with ODBC or am I doing something wrong?
> > How can I avoid having my own routine outside mss.ew?
>
> See section "Scope" in the reference manual:
> <a
> href="http://www.rapideuphoria.com/refman_2.htm#42">http://www.rapideuphoria.com/refman_2.htm#42</a>
>
> | A namespace identifier has local scope. It is known only within the file
> | that declares it, i.e. the file that contains the include statement.
> | Different files might define different namespace identifiers to refer to
> | the same included file.
>
> When your library 'mss.ew' also contains a line such as
> include odbc.e as ODBC
>
> then your program should work as expected.
I think it needs mentioning that the include will not be included, parsed and
executed twice - it will simply be visible for use in mss.ew.
Alex
4. Re: ODBC namespace identifier
Alex Chamberlain wrote:
>
> Juergen Luethje wrote:
> >
> > Rad wrote:
> >
> > > I am using odbc.e with the name space identifier ODBC in the
> > > Begin area of WinMain() window.
> > >
> > > }}}
<eucode>
> > > include odbc.e as ODBC
> > > </eucode>
{{{
> > >
> > >
> > > I have also included a library mss.ew of my own routines after odbc.
> > >
> > > }}}
<eucode>
> > > include mss.ew
> > > </eucode>
{{{
> > >
> > >
> > > Now, I have written a procedure in mss.ew which accesses ODBC:getData()
> > > function, but ODBC name space identifier is not recognised.
> > >
> > > I get following error:
> > >
> > > D:\EUPHORIA\IDE\Projects\Syndicate ODBC\mss.ew:155
> > > ODBC has not been declared
> > > rec_data = ODBC:getData(sysmsgs_hndl)
> > > ^
> > >
> > > Only when I move the concerned procedure to the General area of the window
> > > where ODBC is accessed, the name space identifier is recognized and system
> > > works fine.
> > >
> > > Is it a problem with ODBC or am I doing something wrong?
> > > How can I avoid having my own routine outside mss.ew?
> >
> > See section "Scope" in the reference manual:
> > <a
> > href="http://www.rapideuphoria.com/refman_2.htm#42">http://www.rapideuphoria.com/refman_2.htm#42</a>
> >
> > | A namespace identifier has local scope. It is known only within the file
> > | that declares it, i.e. the file that contains the include statement.
> > | Different files might define different namespace identifiers to refer to
> > | the same included file.
> >
> > When your library 'mss.ew' also contains a line such as
> > include odbc.e as ODBC
> >
> > then your program should work as expected.
>
> I think it needs mentioning that the include will not be included, parsed and
> executed twice - it will simply be visible for use in mss.ew.
>
> Alex
Thanks Juergen, Alex.
I was under impression that once included at the topmost level, the includes
will be available throughout the next levels.
Regards,
Rad.
