ADO RDD xHarbour

[AHF]

Antonio,

What func calls the ADO_ORDDESTROY ?

[Antonio Linares]

Antonio,

Place an error in ADO_ORDDESTROY() and you will see the calls stack list

in example, write:
x++

it will error and you will see what function calls it

[AHF]

Antonio,

Where is information about the controling index in ADO RDD ?

[Antonio Linares]

The controlling index is set in the ADO recordset:

oRecordSet:Index := aOrderInfo[ UR_ORI_BAG ]

[AHF]

Antonio,

I needed an VAR to save the controling index.
All indexes are "virtual" they really dont exist as files in ADORDD.
The indexes are SELECTs
Its solved.

Now I need to know RDD function to DBRLOCKLIST()

What is aLockInfo[ UR_LI_METHOD ] := DBLM_MULTIPLE ?

[Antonio Linares]

Antonio,

Very good, you are progressing

have a look at this:
http://www.ousob.com/ng/53tecref/ng42f2a.php

[AHF]

Antonio,

Ok got it!

How can I have DBRLOCKLIST() to work?

[Antonio Linares]

Antonio,

See how it is implemented in Harbour:

Code: Select all  Expand view

HB_FUNC( DBRLOCKLIST )
{
   AREAP pArea = ( AREAP ) hb_rddGetCurrentWorkAreaPointer();

   if( pArea )
   {
      PHB_ITEM pList = hb_itemArrayNew( 0 );
      SELF_INFO( pArea, DBI_GETLOCKARRAY, pList );
      hb_itemReturnRelease( pList );
   }
   else
      hb_errRT_DBCMD( EG_NOTABLE, EDBCMD_NOTABLE, NULL, HB_ERR_FUNCNAME );

}

[AHF]

Antonio,

Sorry didnt catch it.

I'm not familiar with harbour C ext.

Where can I keep the locklist array updated in adordd everytime ADO_LOCK and ADO_UNLOCK are called?

Locks dont really exist in the files its only for record position information.

[Antonio Linares]

Antonio,

In that C code an array is created and filled with an array (DBI_GETLOCKARRAY)

The question here is: Does it have sense to talk about this in ADO ? Do we just return an empty array ?

Are we going to need those locks positions ? I guess no

[AHF]

Antonio,

Its absolutly necessary to keep the locklist array.

In transactions we lock and append all necessary records and then we loop trough the locklist with dbgoto to make all replaces. If a lock fails the transaction fails.

Altough with ADO never fails as real locks dont matter we still need to have it filled with bookmarks to return to each record later.

[Antonio Linares]

Antonio,

ok, you can save them using bookmarks, yes

[AHF]

Antonio,

I need your support here because I still dont know how to do it.

[Antonio Linares]

Antonio,

Please post your most recent adordd.prg file and I review it, thanks

[AHF]

Antonio,

Sent to your email.