internal SQL

rbuser

We have RB6 and want to move to RB10. I know you can can register your own
QueryDesigner.

Previous developers modified the core RB code, which has caused us to not
upgrade until now. I want to basically inherit everything that has been
changed so we can minimise the effort to upgrade in the future.

My question is this, can you inherit from the SQL classes within the
application? We have added our own date functions and need to have these
built into the final SQL.


Generally can we inherit from most classes? I don't really want to have to
keep bothering someone everytime I find some more custom code.

Regards
Charles

--- posted by geoForum on http://delphi.newswhat.com

nicocizik

Hi Charles,

Yes, it is possible to completely replace all of the existing dialogs in
ReportBuilder (with the exception of the designer). It is definitely
possible to create your own query designer and replace the native one
supplied with ReportBuilder. All the query tools descend from the
TdaCustomDataWizard class.

--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com

rbuser

Hi Nico,

Is that the same for TdaSQL and all classes derived from it?


Regards
Charles

--- posted by geoForum on http://delphi.newswhat.com

nicocizik

Hi Charles,

Sorry for the misunderstanding.

The TdaSQL class can be descended from (see TdaMagicSQL) however the amount
of altered RB code you will be able to reuse is really dependent on which
code you altered. If you take a look at the TdaSQL class you can see which
routines can be inherited. If for instance, you changed numerous private or
non-virtual methods in your previous version of RB, you will need to either
change them again for the new version of RB, or find a way to use the
virtual methods in TdaSQL to achieve what you need.

--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com