NEW WIKI page about Database Schema migration

[Jochen Kötter]

Am 28.06.2007 um 16:30 schrieb Ruslan Zasukhin:

> On 28/6/07 5:15 PM, "Jochen Kötter" <jochen-koetter at gmx.de> wrote:
>
> Hi Jochen,
>
>> Hi Ruslan,
>>
>> Congratulation! It's a nice Site!
>> I noticed a litte mistake. The method 'OpenDatabase' requires a
>> boolean. In the 'Class Style' you don't use the return value.
>
> Good eye.
>
> I have made it on start of page, just in case...
> But later do not see in use.
> So I can remove it
>
>> One question about the Class Style in 3.1:
>> Did I read right ?
>
>> If I use in ConvertSchema_1_2 the reference to the unknown tbl...
>> Valentina will convert my Structure-classes when opening my Subclass-
>> db afterwards??
>
> NO of course.

Sorry, I'm yet a Noobie :-)
I missunderstanded  ' ... so all CLASSES in your code strictly  
corresponds to the database structure.' and found no hint, that the  
classes have to be updated.
Perhaps you should complement this - we noobies often mistake
make terrible mistakes :-)

Thank you, Ruslan

Jochen

>
> How Valentina plugin can convert REALbasic CLASSES which are  
> written by you
> and compiled ?
>
> Its impossible of course.
>
> Page says (or try to say :-)
>
>     that ConvertSchema_1_2() method must correct tables on disk,
>     so they start correspond to YOUR NEW classes.
>
>
>> btw, what kind are the values I get with VarraySet.ItemAt - are these
>> OIDs ?
>
> No, its RecID  (ULONG Integer)
>
>> With iter. Firstitem i.E. I get RecIDs, is this correct?
>
> yes
>
> -- 
> Best regards,
>
> Ruslan Zasukhin
> VP Engineering and New Technology
> Paradigma Software, Inc
>
> Valentina - Joining Worlds of Information
> http://www.paradigmasoft.com
>
> [I feel the need: the need for speed]
>
>
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