From PStath at jmawireless.com  Thu Apr  5 16:55:01 2018
From: PStath at jmawireless.com (Paul Stath)
Date: Thu Apr  5 16:59:29 2018
Subject: [odb-users] Alternate mapping of bool
Message-ID: <BN3PR0801MB08503DC64CC30BB0BF6D3403D9BB0@BN3PR0801MB0850.namprd08.prod.outlook.com>

Hi Boris,

Is there a way to provide a custom mapping for bool and have it only override certain columns in the object?

I need to have a bool column where a True value is (NOT NULL), and a False value is NULL.
This column will be used in a unique index where multiple rows can have the same index values, but only one row can be active (True).

I would like other bool columns in the object to have the default ODB mapping when False = 0 and True = 1.

Is there a simpler way than creating a "wrapper" object, something similar to:

struct NullBool {
               bool       value;
}

and then provide:
template<>
class value_trait<NullBool, id_test>
{
...
}

Please steer me in the right direction.

--- Paul
From boris at codesynthesis.com  Mon Apr  9 02:14:53 2018
From: boris at codesynthesis.com (Boris Kolpackov)
Date: Mon Apr  9 02:19:24 2018
Subject: [odb-users] Alternate mapping of bool
In-Reply-To: <BN3PR0801MB08503DC64CC30BB0BF6D3403D9BB0@BN3PR0801MB0850.namprd08.prod.outlook.com>
References: <BN3PR0801MB08503DC64CC30BB0BF6D3403D9BB0@BN3PR0801MB0850.namprd08.prod.outlook.com>
Message-ID: <boris.20180409080731@codesynthesis.com>

Paul Stath <PStath@jmawireless.com> writes:

> Is there a simpler way than creating a "wrapper" object, something
> similar to:
> 
> struct NullBool {
>                bool       value;
> }
> 
> and then provide:
>
> template<>
> class value_trait<NullBool, id_test>
> {
> ...
> }

As the value_trait<> template suggests, you either need a different
C++ type (first template parameter) or a database type (second template
parameter) to make it differ from the default <bool, id_integer>.

The simplest way to achieve what you want is probably to map such
special null-bool's to a different database type, say TEXT (you
can still store them as "0" and "1" or NULL and "1"). Then, to
"activate" this semantics for certain members you simply specify
the TEXT type explicitly:

class object
{
  #pragma db type("TEXT") null
  bool b;
};

Boris

From fabianfuture at web.de  Wed Apr 18 15:16:46 2018
From: fabianfuture at web.de (Fabian Fritz)
Date: Wed Apr 18 15:21:56 2018
Subject: [odb-users] Using query members while also renaming class members
Message-ID: <CAN3LaaxPQcrb5c0mGtAtU-xvN4wQG5vuV_OGWGiSsp4om88S=g@mail.gmail.com>

Hi,

I have created a class MyClass from an existing table and used #pragma
db member("MYCOLUMN") above a member mycolumn, so I don't have to use
the uppercase name all the time. Now if I use
query<MyClass>::mycolumn, I get errors, because the query puts
"mycolumn" instead of MYCOLUMN in the sql.

So my question is: can you use member("MYCOLUMN") to rename class
members (i.e. map them to the actual column names) while still using
the query interface?

Thanks,
Fabian

From javier.gutierrez at web.de  Thu Apr 19 02:17:48 2018
From: javier.gutierrez at web.de (Javier Gutierrez)
Date: Thu Apr 19 02:23:01 2018
Subject: [odb-users] Using query members while also renaming class members
In-Reply-To: <CAN3LaaxPQcrb5c0mGtAtU-xvN4wQG5vuV_OGWGiSsp4om88S=g@mail.gmail.com>
References: <CAN3LaaxPQcrb5c0mGtAtU-xvN4wQG5vuV_OGWGiSsp4om88S=g@mail.gmail.com>
Message-ID: <8330f422-289e-59fd-3b72-facf89446933@web.de>

Hello there, try column("MYCOLUMN")


-------- Original Message --------
Subject: [odb-users] Using query members while also renaming class members
From: Fabian Fritz <fabianfuture@web.de>
To: odb-users@codesynthesis.com
Date: 4/18/2018 9:16 PM
> Hi,	
>
> I have created a class MyClass from an existing table and used #pragma
> db member("MYCOLUMN") above a member mycolumn, so I don't have to use
> the uppercase name all the time. Now if I use
> query<MyClass>::mycolumn, I get errors, because the query puts
> "mycolumn" instead of MYCOLUMN in the sql.
>
> So my question is: can you use member("MYCOLUMN") to rename class
> members (i.e. map them to the actual column names) while still using
> the query interface?
>
> Thanks,
> Fabian
>

From janis.taranda at gmail.com  Fri Apr 20 10:29:48 2018
From: janis.taranda at gmail.com (Janis Taranda)
Date: Fri Apr 20 10:35:00 2018
Subject: [odb-users] Can't run ODB on Ubuntu 17.10
Message-ID: <CAJQd+0kcY3A7ppJfiOoUrYefiKtai2Z4tcvw5atWgJX6eApQfQ@mail.gmail.com>

```
odb -I /usr/include/x86_64-linux-gnu/qt5 -x -fPIE -d sqlite -p qt --trace
--generate-query models/storeoauth2client.hstarting plugin odb
In file included from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/type_traits:35:0,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qglobal.h:45,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qchar.h:43,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:48,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/QString:1,
                 from
/usr/local/include/odb/qt/basic/sqlite/default-mapping.hxx:8,
                 from <odb-prologue-2>:1:
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/bits/c++0x_warning.h:32:2:
error: #error This file requires compiler and library support for the ISO
C++ 2011 standard. This support is currently experimental, and must be
enabled with the -std=c++11 or -std=gnu++11 compiler options.
 #error This file requires compiler and library support for the \
```

And when I add --std c++11 flag it's millions of errors, staring:

```
odb --std c++11 -I /usr/include/x86_64-linux-gnu/qt5 -x -fPIE -d sqlite -p
qt --trace --generate-query models/storeoauth2client.hstarting plugin odb
In file included from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/cwchar:44:0,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/bits/postypes.h:40,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/bits/char_traits.h:40,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/string:40,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/random:40,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/bits/stl_algo.h:66,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/algorithm:62,
                 from
/usr/include/x86_64-linux-gnu/qt5/QtCore/qglobal.h:109,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qchar.h:43,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:48,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/QString:1,
                 from
/usr/local/include/odb/qt/basic/sqlite/default-mapping.hxx:8,
                 from <odb-prologue-2>:1:
/usr/lib/odb/i686-linux-gnu/lib/gcc/i686-linux-gnu/4.9.3/include-fixed/wchar.h:93:3:
error: conflicting declaration ?typedef struct __mbstate_t __mbstate_t?
 } __mbstate_t;
   ^
In file included from /usr/include/_G_config.h:17:0,
                 from /usr/include/libio.h:31,
                 from /usr/include/stdio.h:41,
                 from
/usr/lib/odb/i686-linux-gnu/lib/gcc/i686-linux-gnu/4.9.3/include-fixed/wchar.h:46,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/cwchar:44,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/bits/postypes.h:40,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/bits/char_traits.h:40,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/string:40,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/random:40,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/bits/stl_algo.h:66,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/algorithm:62,
                 from
/usr/include/x86_64-linux-gnu/qt5/QtCore/qglobal.h:109,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qchar.h:43,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:48,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/QString:1,
                 from
/usr/local/include/odb/qt/basic/sqlite/default-mapping.hxx:8,
                 from <odb-prologue-2>:1:
/usr/include/bits/types/__mbstate_t.h:21:3: note: previous declaration as
?typedef struct __mbstate_t __mbstate_t?
 } __mbstate_t;
   ^
In file included from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/cwchar:44:0,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/bits/postypes.h:40,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/bits/char_traits.h:40,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/string:40,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/random:40,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/bits/stl_algo.h:66,
                 from
/usr/lib/odb/i686-linux-gnu/include/c++/4.9.3/algorithm:62,
                 from
/usr/include/x86_64-linux-gnu/qt5/QtCore/qglobal.h:109,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qchar.h:43,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:48,
                 from /usr/include/x86_64-linux-gnu/qt5/QtCore/QString:1,
                 from
/usr/local/include/odb/qt/basic/sqlite/default-mapping.hxx:8,
                 from <odb-prologue-2>:1:
/usr/lib/odb/i686-linux-gnu/lib/gcc/i686-linux-gnu/4.9.3/include-fixed/wchar.h:102:1:
error: ?__BEGIN_NAMESPACE_C99? does not name a type
 __BEGIN_NAMESPACE_C99
 ^
/usr/lib/odb/i686-linux-gnu/lib/gcc/i686-linux-gnu/4.9.3/include-fixed/wchar.h:105:1:
error: ?__END_NAMESPACE_C99? does not name a type
 __END_NAMESPACE_C99
 ^
```
Maybe you see the problem right away?
From janis.taranda at gmail.com  Sat Apr 21 04:34:41 2018
From: janis.taranda at gmail.com (Janis Taranda)
Date: Sat Apr 21 04:39:58 2018
Subject: [odb-users] Can't compile simple object- gcc errors
Message-ID: <CAJQd+0kziFNPHyESe1_OBOQ1Xc7UDUcJwAYow4Yuv7tR5EXBhA@mail.gmail.com>

-----------------------------------------------------------------------------
COMPILE ERROR
-----------------------------------------------------------------------------

odb --std c++14 -D GLIBCXX_HAVE_MBSTATE_T -I
/usr/include/x86_64-linux-gnu/qt5 -x -fPIE -d sqlite -p qt --trace
--generate-query models/storeoauth2client.h

https://pastebin.com/Y7fex6QN << very long

-----------------------------------------------------------------------------
MACHINE INFORMATION
-----------------------------------------------------------------------------

Ubuntu 17.10

trsh@trsh-comp:~/manu/backEnd/src$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/7/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu
7.2.0-8ubuntu3.2' --with-bugurl=file:///usr/share/doc/gcc-7/README.Bugs
--enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr
--with-gcc-major-version-only --program-suffix=-7
--program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-vtable-verify --enable-libmpx --enable-plugin
--enable-default-pie --with-system-zlib --with-target-system-zlib
--enable-objc-gc=auto --enable-multiarch --disable-werror
--with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32
--enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none
--without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu
--host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 7.2.0 (Ubuntu 7.2.0-8ubuntu3.2)

trsh@trsh-comp:~/manu/backEnd/src$ uname -rm
4.13.0-38-generic x86_64

trsh@trsh-comp:~/manu/backEnd/src$ file /sbin/init
/lib/systemd/systemd: ELF 64-bit LSB shared object, x86-64, version 1
(SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for
GNU/Linux 3.2.0, BuildID[sha1]=88515d78d4ffa03d5885f8f4329cadf733242c19,
stripped
trsh@trsh-comp:~/manu/backEnd/src$
From fabianfuture at web.de  Sat Apr 21 04:42:53 2018
From: fabianfuture at web.de (Fabian Fritz)
Date: Sat Apr 21 04:48:11 2018
Subject: [odb-users] Using query members while also renaming class members
In-Reply-To: <8330f422-289e-59fd-3b72-facf89446933@web.de>
References: <CAN3LaaxPQcrb5c0mGtAtU-xvN4wQG5vuV_OGWGiSsp4om88S=g@mail.gmail.com>
	<8330f422-289e-59fd-3b72-facf89446933@web.de>
Message-ID: <CAN3LaazxGNg=qM-v-thKD6hTSZhCHYcVk5HUyzFLEZTVXUNHAA@mail.gmail.com>

That's the thing though:

If I put this above my class attributes
#pragma db member("MYCOLUMN")
int mycolumn

The SELECT I get looks alright: SELECT "MYCOLUMN" FROM MYTABLE //...

However when I use the query<MyClass>::mycolumn, I get WHERE "mycolumn" =
123 //...
and that's where the database complains, because it doesn't know the column
in lowercase.

So is it possible to map my class attributes to different column names
while still being able to use the query:: interface?


Thanks,
Fabian

Javier Gutierrez <javier.gutierrez@web.de> schrieb am Do., 19. Apr. 2018,
08:18:

> Hello there, try column("MYCOLUMN")
>
>
> -------- Original Message --------
> Subject: [odb-users] Using query members while also renaming class members
> From: Fabian Fritz <fabianfuture@web.de>
> To: odb-users@codesynthesis.com
> Date: 4/18/2018 9:16 PM
> > Hi,
> >
> > I have created a class MyClass from an existing table and used #pragma
> > db member("MYCOLUMN") above a member mycolumn, so I don't have to use
> > the uppercase name all the time. Now if I use
> > query<MyClass>::mycolumn, I get errors, because the query puts
> > "mycolumn" instead of MYCOLUMN in the sql.
> >
> > So my question is: can you use member("MYCOLUMN") to rename class
> > members (i.e. map them to the actual column names) while still using
> > the query interface?
> >
> > Thanks,
> > Fabian
> >
>
>
From fabianfuture at web.de  Sat Apr 21 05:25:01 2018
From: fabianfuture at web.de (Fabian Fritz)
Date: Sat Apr 21 05:30:18 2018
Subject: [odb-users] Using query members while also renaming class members
In-Reply-To: <1n6smfd54e7l87a7o6q1omsb.1524301060227@email.android.com>
References: <CAN3LaaxPQcrb5c0mGtAtU-xvN4wQG5vuV_OGWGiSsp4om88S=g@mail.gmail.com>
	<8330f422-289e-59fd-3b72-facf89446933@web.de>
	<CAN3LaazxGNg=qM-v-thKD6hTSZhCHYcVk5HUyzFLEZTVXUNHAA@mail.gmail.com>
	<1n6smfd54e7l87a7o6q1omsb.1524301060227@email.android.com>
Message-ID: <CAN3Laaw0s-1HxYKvsLYp+iwS1YqbJ9082Yd2hVjUMcg0HuTvug@mail.gmail.com>

Ah, I see. That should do the trick - thanks!

2018-04-21 10:57 GMT+02:00 Javier Gutierrez <javier.gutierrez@web.de>:
> Itry with
> #pragma db column("MYCOLUMN")
> Instead of
> #pragma db member("MYCOLUMN")
>
> ---- Fabian Fritz wrote ----
>
>
> That's the thing though:
>
> If I put this above my class attributes
> #pragma db member("MYCOLUMN")
> int mycolumn
>
> The SELECT I get looks alright: SELECT "MYCOLUMN" FROM MYTABLE //...
>
> However when I use the query<MyClass>::mycolumn, I get WHERE "mycolumn" =
> 123 //...
> and that's where the database complains, because it doesn't know the column
> in lowercase.
>
> So is it possible to map my class attributes to different column names while
> still being able to use the query:: interface?
>
>
> Thanks,
> Fabian
>
> Javier Gutierrez <javier.gutierrez@web.de> schrieb am Do., 19. Apr. 2018,
> 08:18:
>>
>> Hello there, try column("MYCOLUMN")
>>
>>
>> -------- Original Message --------
>> Subject: [odb-users] Using query members while also renaming class members
>> From: Fabian Fritz <fabianfuture@web.de>
>> To: odb-users@codesynthesis.com
>> Date: 4/18/2018 9:16 PM
>> > Hi,
>> >
>> > I have created a class MyClass from an existing table and used #pragma
>> > db member("MYCOLUMN") above a member mycolumn, so I don't have to use
>> > the uppercase name all the time. Now if I use
>> > query<MyClass>::mycolumn, I get errors, because the query puts
>> > "mycolumn" instead of MYCOLUMN in the sql.
>> >
>> > So my question is: can you use member("MYCOLUMN") to rename class
>> > members (i.e. map them to the actual column names) while still using
>> > the query interface?
>> >
>> > Thanks,
>> > Fabian
>> >
>>
>

From boris at codesynthesis.com  Sat Apr 21 09:31:54 2018
From: boris at codesynthesis.com (Boris Kolpackov)
Date: Sat Apr 21 09:37:04 2018
Subject: [odb-users] Can't compile simple object- gcc errors
In-Reply-To: <CAJQd+0kziFNPHyESe1_OBOQ1Xc7UDUcJwAYow4Yuv7tR5EXBhA@mail.gmail.com>
References: <CAJQd+0kziFNPHyESe1_OBOQ1Xc7UDUcJwAYow4Yuv7tR5EXBhA@mail.gmail.com>
Message-ID: <boris.20180421152915@codesynthesis.com>

Try to build the latest pre-release[1] of the ODB compiler from source
so that it uses the system GCC. See the INSTALL file inside for details
on how to do it.

[1] https://codesynthesis.com/~boris/tmp/odb/pre-release/b.3/

From fabian.fritz90 at gmail.com  Sat Apr 21 05:24:45 2018
From: fabian.fritz90 at gmail.com (Fabian Fritz)
Date: Sat Apr 21 09:39:39 2018
Subject: [odb-users] Linker errors with self-compiled libodb-oracle +
 official Ubuntu (17.10) packages
Message-ID: <CAN3Laaw=xCQM746wgi9b1+xhs=-RuSnSse=x-Sc_7xZpmdWhdg@mail.gmail.com>

Hi,

I compiled libodb-oracle and it works on CentOS 7, however on Ubuntu I
get these linker errors: https://pastebin.com/neSQnsW3. I use the
official libodb-2.4 (2.4.0-1build1), libodb-dev(2.4.0-1build1)
packages.

Should I use a specific gcc version to compile libodb-oracle or how
can I fix this?

Thanks,
Fabian

From boris at codesynthesis.com  Sat Apr 21 09:39:23 2018
From: boris at codesynthesis.com (Boris Kolpackov)
Date: Sat Apr 21 09:44:31 2018
Subject: [odb-users] Linker errors with self-compiled libodb-oracle +
	official Ubuntu (17.10) packages
In-Reply-To: <CAN3Laaw=xCQM746wgi9b1+xhs=-RuSnSse=x-Sc_7xZpmdWhdg@mail.gmail.com>
References: <CAN3Laaw=xCQM746wgi9b1+xhs=-RuSnSse=x-Sc_7xZpmdWhdg@mail.gmail.com>
Message-ID: <boris.20180421153455@codesynthesis.com>

Fabian Fritz <fabian.fritz90@gmail.com> writes:

> g++ -lodb-2.4 -lodb-oracle -o odbtest.run obj/test.o
> obj/test.o: In function `main':
> test.cpp:(.text+0x509): undefined reference to `odb::transaction::~transaction()'
> test.cpp:(.text+0x6cb): undefined reference to `odb::oracle::database::print_usage(std::ostream&)'

Have you built libodb-oracle as a static library? If so, then you need
to link the libraries after the object files:

g++ -o odbtest.run obj/test.o -lodb-2.4 -lodb-oracle

If that doesn't help, try to rebuild everything (libodb, libodb-oracle,
and your project) from source with the same g++ -- there has been a
breaking ABI change in GCC which renders libraries built with different
versions incompatible.

Boris

From janis.taranda at gmail.com  Sat Apr 21 11:26:02 2018
From: janis.taranda at gmail.com (Janis Taranda)
Date: Sat Apr 21 11:31:17 2018
Subject: [odb-users] Can't compile simple object- gcc errors
In-Reply-To: <boris.20180421152915@codesynthesis.com>
References: <CAJQd+0kziFNPHyESe1_OBOQ1Xc7UDUcJwAYow4Yuv7tR5EXBhA@mail.gmail.com>
	<boris.20180421152915@codesynthesis.com>
Message-ID: <CAJQd+0mYPp1Sbif9ewqs3MrEGb5+KPFHvzC4Qyq6EqBq=f_p_Q@mail.gmail.com>

Now I have problem compiling libodb-qt:

checking for pkg-config... /usr/bin/pkg-config
checking for QtCore... no
configure: error: QtCore is not found; consider using CPPFLAGS/LDFLAGS to
specify its location

./configure CPPFLAGS=-I/usr/include/x86_64-linux-gnu/qt5/QtCore

Janis

On Sat, Apr 21, 2018 at 4:31 PM, Boris Kolpackov <boris@codesynthesis.com>
wrote:

> Try to build the latest pre-release[1] of the ODB compiler from source
> so that it uses the system GCC. See the INSTALL file inside for details
> on how to do it.
>
> [1] https://codesynthesis.com/~boris/tmp/odb/pre-release/b.3/
>
>
From fabianfuture at web.de  Sat Apr 21 12:34:17 2018
From: fabianfuture at web.de (Fabian Fritz)
Date: Sat Apr 21 12:39:37 2018
Subject: [odb-users] Using query members while also renaming class members
In-Reply-To: <CAN3Laaw0s-1HxYKvsLYp+iwS1YqbJ9082Yd2hVjUMcg0HuTvug@mail.gmail.com>
References: <CAN3LaaxPQcrb5c0mGtAtU-xvN4wQG5vuV_OGWGiSsp4om88S=g@mail.gmail.com>
	<8330f422-289e-59fd-3b72-facf89446933@web.de>
	<CAN3LaazxGNg=qM-v-thKD6hTSZhCHYcVk5HUyzFLEZTVXUNHAA@mail.gmail.com>
	<1n6smfd54e7l87a7o6q1omsb.1524301060227@email.android.com>
	<CAN3Laaw0s-1HxYKvsLYp+iwS1YqbJ9082Yd2hVjUMcg0HuTvug@mail.gmail.com>
Message-ID: <CAN3Laay3a_YfOu0jxvokhCPwDRPDnwsp3vbSq21qd=VQ065uLQ@mail.gmail.com>

Unfortunately it didn't work:

// The class:
#pragma db object table("XPROCEDURE")
 class XProcedure {
private:
XVorgang() {}
friend class odb::access;
#pragma db id auto column("NR")
int nr;
#pragma db column("FILENAME")
std::string filename;
}

// The query:
result res(db->query<XProcedure>(query::nr > 5000000));

//The resulting SQL:
SELECT "XPROCEDURE"."NR", "XPROCEDURE"."FILENAME" FROM "XPROCEDURE"
WHERE "XPROCEDURE"."nr" > :1

And at that point my Oracle database complains because it doesn't know
any column nr (lower case).

2018-04-21 11:25 GMT+02:00 Fabian Fritz <fabianfuture@web.de>:
> Ah, I see. That should do the trick - thanks!
>
> 2018-04-21 10:57 GMT+02:00 Javier Gutierrez <javier.gutierrez@web.de>:
>> Itry with
>> #pragma db column("MYCOLUMN")
>> Instead of
>> #pragma db member("MYCOLUMN")
>>
>> ---- Fabian Fritz wrote ----
>>
>>
>> That's the thing though:
>>
>> If I put this above my class attributes
>> #pragma db member("MYCOLUMN")
>> int mycolumn
>>
>> The SELECT I get looks alright: SELECT "MYCOLUMN" FROM MYTABLE //...
>>
>> However when I use the query<MyClass>::mycolumn, I get WHERE "mycolumn" =
>> 123 //...
>> and that's where the database complains, because it doesn't know the column
>> in lowercase.
>>
>> So is it possible to map my class attributes to different column names while
>> still being able to use the query:: interface?
>>
>>
>> Thanks,
>> Fabian
>>
>> Javier Gutierrez <javier.gutierrez@web.de> schrieb am Do., 19. Apr. 2018,
>> 08:18:
>>>
>>> Hello there, try column("MYCOLUMN")
>>>
>>>
>>> -------- Original Message --------
>>> Subject: [odb-users] Using query members while also renaming class members
>>> From: Fabian Fritz <fabianfuture@web.de>
>>> To: odb-users@codesynthesis.com
>>> Date: 4/18/2018 9:16 PM
>>> > Hi,
>>> >
>>> > I have created a class MyClass from an existing table and used #pragma
>>> > db member("MYCOLUMN") above a member mycolumn, so I don't have to use
>>> > the uppercase name all the time. Now if I use
>>> > query<MyClass>::mycolumn, I get errors, because the query puts
>>> > "mycolumn" instead of MYCOLUMN in the sql.
>>> >
>>> > So my question is: can you use member("MYCOLUMN") to rename class
>>> > members (i.e. map them to the actual column names) while still using
>>> > the query interface?
>>> >
>>> > Thanks,
>>> > Fabian
>>> >
>>>
>>

From fabian.fritz90 at gmail.com  Sat Apr 21 12:36:17 2018
From: fabian.fritz90 at gmail.com (Fabian Fritz)
Date: Mon Apr 23 10:50:26 2018
Subject: [odb-users] Linker errors with self-compiled libodb-oracle +
	official Ubuntu (17.10) packages
In-Reply-To: <boris.20180421153455@codesynthesis.com>
References: <CAN3Laaw=xCQM746wgi9b1+xhs=-RuSnSse=x-Sc_7xZpmdWhdg@mail.gmail.com>
	<boris.20180421153455@codesynthesis.com>
Message-ID: <CAN3LaazL2Qqbk4+4VkKcNb7A1ed3ANFPXYwx1Kc_1pMeYZrL4A@mail.gmail.com>

You're right, I only had the order of the libraries wrong. Thanks.

2018-04-21 15:39 GMT+02:00 Boris Kolpackov <boris@codesynthesis.com>:
> Fabian Fritz <fabian.fritz90@gmail.com> writes:
>
>> g++ -lodb-2.4 -lodb-oracle -o odbtest.run obj/test.o
>> obj/test.o: In function `main':
>> test.cpp:(.text+0x509): undefined reference to `odb::transaction::~transaction()'
>> test.cpp:(.text+0x6cb): undefined reference to `odb::oracle::database::print_usage(std::ostream&)'
>
> Have you built libodb-oracle as a static library? If so, then you need
> to link the libraries after the object files:
>
> g++ -o odbtest.run obj/test.o -lodb-2.4 -lodb-oracle
>
> If that doesn't help, try to rebuild everything (libodb, libodb-oracle,
> and your project) from source with the same g++ -- there has been a
> breaking ABI change in GCC which renders libraries built with different
> versions incompatible.
>
> Boris

From janis.taranda at gmail.com  Sat Apr 21 14:45:11 2018
From: janis.taranda at gmail.com (Janis Taranda)
Date: Mon Apr 23 10:50:26 2018
Subject: [odb-users] Can't compile simple object- gcc errors
In-Reply-To: <boris.20180421152915@codesynthesis.com>
References: <CAJQd+0kziFNPHyESe1_OBOQ1Xc7UDUcJwAYow4Yuv7tR5EXBhA@mail.gmail.com>
	<boris.20180421152915@codesynthesis.com>
Message-ID: <CAJQd+0m06MFTNO7ig0tW8gFML-pZTWSq5Te4qHNJ5_jXZoaa2w@mail.gmail.com>

Get rid of previous problems. Now

starting plugin odb
namespace QtSharedPointer at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qsharedpointer_impl.h:108
namespace QtMetaTypePrivate at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qmetatype.h:753
namespace Cutelyst at ../plugins/oauth2/models/oauth2client.h:10
namespace odb at
/usr/local/include/odb/details/shared-ptr/counter-type.hxx:10
namespace core at /usr/local/include/odb/forward.hxx:23
namespace common at /usr/local/include/odb/forward.hxx:21
namespace details at
/usr/local/include/odb/details/shared-ptr/counter-type.hxx:12
namespace meta at /usr/local/include/odb/details/meta/remove-const.hxx:14
namespace QAlgorithmsPrivate at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qalgorithms.h:57
namespace Qt at /usr/include/x86_64-linux-gnu/qt5/QtCore/qnamespace.h:68
namespace QtGlobalStatic at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qglobalstatic.h:49
namespace QtPrivate at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qglobal.h:384
namespace SwapExceptionTester at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qglobal.h:852
namespace __gnu_debug at /usr/include/c++/7/debug/debug.h:56
namespace __gnu_cxx at
/usr/include/x86_64-linux-gnu/c++/7/bits/c++config.h:255
namespace __ops at /usr/include/c++/7/bits/predefined_ops.h:35
namespace __cxx11 at
/usr/include/x86_64-linux-gnu/c++/7/bits/c++config.h:257
namespace std at <built-in>:0
namespace chrono at /usr/include/c++/7/chrono:59
namespace _V2 at /usr/include/c++/7/chrono:805
namespace __select_int at /usr/include/c++/7/bits/parse_numbers.h:255
namespace __parse_int at /usr/include/c++/7/bits/parse_numbers.h:45
namespace placeholders at /usr/include/c++/7/functional:268
namespace literals at /usr/include/c++/7/bits/basic_string.h:6654
namespace chrono_literals at /usr/include/c++/7/chrono:885
namespace string_literals at /usr/include/c++/7/bits/basic_string.h:6656
namespace __detail at /usr/include/c++/7/bits/uniform_int_dist.h:40
namespace __exception_ptr at /usr/include/c++/7/bits/exception_ptr.h:52
namespace _V2 at /usr/include/c++/7/bits/algorithmfwd.h:546
namespace __debug at /usr/include/c++/7/debug/debug.h:50
namespace rel_ops at /usr/include/c++/7/bits/stl_relops.h:69
namespace __swappable_with_details at /usr/include/c++/7/type_traits:2668
namespace __swappable_details at /usr/include/c++/7/type_traits:2590
namespace __cxx11 at
/usr/include/x86_64-linux-gnu/c++/7/bits/c++config.h:253
opening namespace std for
/usr/include/x86_64-linux-gnu/c++/7/bits/c++config.h:231
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typedef <nullptr_type> (0x3a5ea00) -> nullptr_t at
/usr/include/x86_64-linux-gnu/c++/7/bits/c++config.h:235
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found node 0x3c9aec0 for type 0x7fe75c537540
typedef short unsigned int (0x3c9aec0) -> uint_least16_t at
/usr/include/c++/7/type_traits:44
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found node 0x3c9b260 for type 0x7fe75c537690
typedef unsigned int (0x3c9b260) -> uint_least32_t at
/usr/include/c++/7/type_traits:45
record_type template (0x7fe75883bb80) integral_constant (0x7fe7588fc3f0) at
/usr/include/c++/7/type_traits:69
specializations:
instantiations:
instantiation 0x7fe7532265e8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7531f6a80 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7531c70a8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe753193498 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75315c9d8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75347b540 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7534752a0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe753403348 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7533f6888 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7533f6348 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7533f33f0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7533eae70 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7533eaa80 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7533ea3f0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7533d7e70 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7533d7498 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7533d3c78 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7533b6150 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7533b3d20 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7533b39d8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7533aab28 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7533aa2a0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7533a6bd0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7533a67e0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe753387e70 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe753387000 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75337fe70 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75337fbd0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75374b5e8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe753745bd0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe753972bd0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe753d433f0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe753d39498 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe753cfa9d8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe753be8150 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe754127498 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe754186a80 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe754186888 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe754173c78 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75459cf18 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7544b5dc8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75466cbd0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe754839c78 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe754af6e70 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe754dc7888 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75545b930 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe757431498 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75752d498 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe757525150 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7578abe70 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75789b0a8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe757890150 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577e5b28 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577e5498 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577e5150 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577e19d8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577dcd20 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577dca80 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577dc7e0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577dc3f0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577dc000 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577d99d8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577d9348 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577d6e70 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577d6888 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577cd930 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577c3888 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577aff18 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577af7e0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577ac738 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577851f8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577731f8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577689d8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577647e0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe757764348 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577640a8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75775fdc8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75775fb28 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75775f888 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75775f5e8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75775f348 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75775f0a8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75775adc8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577519d8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75772c7e0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75772c540 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75772c2a0 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7577261f8 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe757726540 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe75890ca80 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe758900000 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7588fcd20 at /usr/include/c++/7/type_traits:69
instantiation 0x7fe7588fcbd0 at /usr/include/c++/7/type_traits:69
start record_type template integral_constant at
/usr/include/c++/7/type_traits:69
end record_type template integral_constant (0x397bf60) at
/usr/include/c++/7/type_traits:69
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start record_type instantiation (0x7fe7588fcbd0) for template (0x397bf60)
at /usr/include/c++/7/type_traits:87
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found node 0x3a19cb0 for type 0x7fe75c537b28
typedef bool (0x3a19cb0) -> value_type at /usr/include/c++/7/type_traits:72
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variant 0x7fe755b79a80 0
variant 0x7fe755b68150 0
variant 0x7fe7560e49d8 0
variant 0x7fe7560dbbd0 0
variant 0x7fe7560ca0a8 0
variant 0x7fe7562141f8 0
variant 0x7fe756214150 0
variant 0x7fe756206b28 0
variant 0x7fe7561ee5e8 0
variant 0x7fe7561ee498 0
variant 0x7fe756181498 0
variant 0x7fe7561813f0 0
variant 0x7fe756175dc8 0
variant 0x7fe75615b888 0
variant 0x7fe75615b738 0
variant 0x7fe756474dc8 0
variant 0x7fe756474c78 0
variant 0x7fe7563c55e8 0
variant 0x7fe7563c5498 0
variant 0x7fe7565430a8 0
variant 0x7fe756543000 0
variant 0x7fe7565379d8 0
variant 0x7fe7565331f8 0
variant 0x7fe756533150 0
variant 0x7fe756522dc8 0
variant 0x7fe75651ab28 0
variant 0x7fe75651aa80 0
variant 0x7fe756516000 0
variant 0x7fe75690bb28 0
variant 0x7fe756904888 0
variant 0x7fe7574821f8 0
variant 0x7fe7574820a8 0
variant 0x7fe757882e70 0
variant 0x7fe758907c78 1
variant 0x7fe758907bd0 0
variant 0x7fe758907a80 0
variant 0x7fe7588fcc78 0
found node 0x39e6958 for type 0x7fe7588fcbd0
*** WARNING *** there are active plugins, do not report this as a bug
unless you can reproduce it without enabling any plugins.
Event                            | Plugins
PLUGIN_START_UNIT                | odb
PLUGIN_PRAGMAS                   | odb
PLUGIN_OVERRIDE_GATE             | odb
In file included from <odb-epilogue-8>:1:0:
/usr/local/include/odb/qt/smart-ptr/wrapper-traits.hxx:61:1: internal
compiler error: Segmentation fault
 }
 ^
0x7fe75bee5a8a parser::impl::emit_type_name[abi:cxx11](tree_node*, bool)
/opt/odb-2.5.0-b.3/odb/parser.cxx:1957
0x7fe75bee5e30 parser::impl::emit_type_name[abi:cxx11](tree_node*, bool)
/opt/odb-2.5.0-b.3/odb/parser.cxx:2025
0x7fe75bee98da parser::impl::emit_type_decl(tree_node*)
/opt/odb-2.5.0-b.3/odb/parser.cxx:1194
0x7fe75befbf07 semantics::class_instantiation&
parser::impl::emit_class<semantics::class_instantiation>(tree_node*,
cutl::fs::basic_path<char> const&, unsigned long, unsigned long, bool)
/opt/odb-2.5.0-b.3/odb/parser.cxx:463
0x7fe75bee8df4 parser::impl::create_type(tree_node*, semantics::access,
cutl::fs::basic_path<char> const&, unsigned long, unsigned long)
/opt/odb-2.5.0-b.3/odb/parser.cxx:1765
0x7fe75bee929b parser::impl::emit_type(tree_node*, semantics::access,
cutl::fs::basic_path<char> const&, unsigned long, unsigned long)
/opt/odb-2.5.0-b.3/odb/parser.cxx:1543
0x7fe75bee96d5 parser::impl::emit_type_decl(tree_node*)
/opt/odb-2.5.0-b.3/odb/parser.cxx:1170
0x7fe75beea65e parser::impl::emit()
/opt/odb-2.5.0-b.3/odb/parser.cxx:1029
0x7fe75beeae17 parser::impl::parse(tree_node*, cutl::fs::basic_path<char>
const&)
/opt/odb-2.5.0-b.3/odb/parser.cxx:867
0x7fe75beeaf22 parser::parse(tree_node*, cutl::fs::basic_path<char> const&)
/opt/odb-2.5.0-b.3/odb/parser.cxx:2279
0x7fe75befcffa gate_callback
/opt/odb-2.5.0-b.3/odb/plugin.cxx:225
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <file:///usr/share/doc/gcc-7/README.Bugs> for instructions.

On Sat, Apr 21, 2018 at 4:31 PM, Boris Kolpackov <boris@codesynthesis.com>
wrote:

> Try to build the latest pre-release[1] of the ODB compiler from source
> so that it uses the system GCC. See the INSTALL file inside for details
> on how to do it.
>
> [1] https://codesynthesis.com/~boris/tmp/odb/pre-release/b.3/
>
>
From boris at codesynthesis.com  Tue Apr 24 11:56:19 2018
From: boris at codesynthesis.com (Boris Kolpackov)
Date: Tue Apr 24 12:01:36 2018
Subject: [odb-users] Using query members while also renaming class members
In-Reply-To: <CAN3Laay3a_YfOu0jxvokhCPwDRPDnwsp3vbSq21qd=VQ065uLQ@mail.gmail.com>
References: <CAN3LaaxPQcrb5c0mGtAtU-xvN4wQG5vuV_OGWGiSsp4om88S=g@mail.gmail.com>
	<8330f422-289e-59fd-3b72-facf89446933@web.de>
	<CAN3LaazxGNg=qM-v-thKD6hTSZhCHYcVk5HUyzFLEZTVXUNHAA@mail.gmail.com>
	<1n6smfd54e7l87a7o6q1omsb.1524301060227@email.android.com>
	<CAN3Laaw0s-1HxYKvsLYp+iwS1YqbJ9082Yd2hVjUMcg0HuTvug@mail.gmail.com>
	<CAN3Laay3a_YfOu0jxvokhCPwDRPDnwsp3vbSq21qd=VQ065uLQ@mail.gmail.com>
Message-ID: <boris.20180424175223@codesynthesis.com>

I just tried to compile the following test with the latest master:

#include <string>

#pragma db object table("XPROCEDURE")
struct XProcedure
{
  #pragma db id auto column("NR")
  int nr;

  #pragma db column("FILENAME")
  std::string filename;
};

$ odb -q -d oracle test.hxx

In the generated test-odb.hxx header I see:

  template <typename A>
  const typename query_columns< ::XProcedure, id_oracle, A >::nr_type_
  query_columns< ::XProcedure, id_oracle, A >::
  nr (A::table_name, "\"NR\"", 0, 10);

Which is where the column name in your query comes from. Can you try
just this example and the command line that I used? If you would
like to try the latest pre-release, you can get it here:

https://codesynthesis.com/~boris/tmp/odb/pre-release/b.3/

Boris

From shprotello at mail.ru  Mon Apr 30 15:18:49 2018
From: shprotello at mail.ru (=?UTF-8?B?0KHQtdGA0LPQtdC5INCd0LjQutC+0L3QvtCy?=)
Date: Mon Apr 30 15:24:36 2018
Subject: [odb-users] Refer a persistent class from another persistent class,
 where both classes are implemented in different libraries
Message-ID: <1525115929.168632961@f451.i.mail.ru>

Hi,

I've encountered a linking problem in the following situation:
- persistent class 'A' is defined in 'moduleA' library
- persistent class 'B' is defined in 'moduleB' library and refers to 'A'
- both modules are built with dynamic multi-database support

When I try to build a library with supporting database code for 'moduleB' I get the following linker error:

error LNK2019: unresolved external symbol "public: static class std::shared_ptr<class A> __cdecl odb::access::object_traits_impl<class A,0>::find(class odb::database &,unsigned __int64 const &)" (...) referenced in function "protected: class std::shared_ptr<class A> __cdecl odb::database::find_<class A,0>(unsigned __int64 const &)" (...)

ODB compiler options for B.h compiling are (not all):

D:/odb-2.5.0-b.3/odb/bin/odb.exe --multi-database dynamic -d sqlite -d mysql -d pgsql -d common --std c++11 --default-pointer std::shared_ptr --export-symbol common:moduleB_EXPORT --extern-symbol common:moduleB_EXTERN --include-with-brackets? --generate-query --generate-session --hxx-prologue common:#include <export.h> --profile moduleA --fkeys-deferrable-mode mysql:not_deferrable B.h

I use odb-2.5.0-b.3 under MSVC 2015.

Is it possible to refer a persistent object from another library if a?referencing persistent class is in another library?

Regards,
Sergey