[odb-users] Re:odb-users Digest, Vol 55, Issue 11

[天空同学]

hi, I got a problem: I defined a class Employee with a member boost::shared_ptr<int> , then the odb tell me a error in generate the xx-odb.hxx file: "unable to map c++ type ::boost::shared_ptr<int> ...", so who can tell me why? Thank you！



------------------ Original ------------------
From: "odb-users-request"<odb-users-request at codesynthesis.com>; 
Date: 2015年3月17日(星期二) 凌晨0:00
To: "odb-users"<odb-users at codesynthesis.com>; 
Subject: odb-users Digest, Vol 55, Issue 11



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Today's Topics:

   1. Re: Composite pattern (not composite value) with extra
      pointer to a child (Boris Kolpackov)
   2. Re: Simple libodb-sqlite test (Boris Kolpackov)


----------------------------------------------------------------------

Message: 1
Date: Mon, 16 Mar 2015 15:23:55 +0200
From: Boris Kolpackov <boris at codesynthesis.com>
Subject: Re: [odb-users] Composite pattern (not composite value) with
	extra	pointer to a child
To: Alexandre Pretyman <alexandre.pretyman at gmail.com>
Cc: odb-users at codesynthesis.com
Message-ID: <boris.20150316152203 at codesynthesis.com>
Content-Type: text/plain; charset=us-ascii

Hi Alexandre,

Alexandre Pretyman <alexandre.pretyman at gmail.com> writes:

> So it seems that for this scenario odb must be part of wiring of
> the object pointers.

Quoting from Chapter 6, "Relationships":

"When persisting or updating an object containing a pointer to another object,
 the pointed-to object must have a valid object id. This, however, may not
 always be easy to achieve in complex relationships that involve objects with
 automatically assigned identifiers. In such cases it may be necessary to
 first persist an object with a pointer set to NULL and then, once the
 pointed-to object is made persistent and its identifier assigned, set the
 pointer to the correct value and update the object in the database."

Boris



------------------------------

Message: 2
Date: Mon, 16 Mar 2015 15:27:25 +0200
From: Boris Kolpackov <boris at codesynthesis.com>
Subject: Re: [odb-users] Simple libodb-sqlite test
To: Adnan RIHAN <axel50397 at gmail.com>
Cc: "odb-users at codesynthesis.com" <odb-users at codesynthesis.com>
Message-ID: <boris.20150316152420 at codesynthesis.com>
Content-Type: text/plain; charset=utf-8

Hi Adnan,

Adnan RIHAN <axel50397 at gmail.com> writes:

> I don’t get it [...]

See if this helps:

http://codesynthesis.com/products/odb/doc/install-macosx.xhtml

Particularly, the "Installing the Runtime Libraries" section.

Boris



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