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changing datamodel

changing datamodel

Post by Jim Sisc » Wed, 24 Mar 1999 04:00:00



Is it possible to change a datamodel without having to re-write a report or
form ?
For example   the datamodel is :work:journal.db
       I wanted to change it to     :variable:journal.db

the :variable: would be a path that I would be able to change at any time.

I am working with several clients.  They each have their own directory and
they each have exactly the same databases in their directory.  I have been
copying their databases to a directory that stores all of my forms and
reports.  This method works but it is slow.
If I could just allow the forms and reports to remain in the working
directory,  but have the datamodel change as I change clients,  that would
make things a lot more efficient for me.

the variable might read  D:\1998 books\mrjones

then I could change it to  D:\1998 books\mrsmith

Jim Sisco

 
 
 
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changing datamodel

Post by Michael Juul Hanse » Wed, 24 Mar 1999 04:00:00


You can use the ReportPrintInfo or ReportOpenInfo records

var
    rpt     Report
    rpi     ReportPrintInfo
endVar

rpi.masterTable = ":Alias:NameOfTable"  ;// String Specifies the name of the
master table for the report
rpi.Name = ":Alias:NameOfReport"

rpt.DesignModified = False

if not rpt.print(rpi) then errorShow() return endIf


> Is it possible to change a datamodel without having to re-write a report or
> form ?
> For example   the datamodel is :work:journal.db
>        I wanted to change it to     :variable:journal.db

> the :variable: would be a path that I would be able to change at any time.

> I am working with several clients.  They each have their own directory and
> they each have exactly the same databases in their directory.  I have been
> copying their databases to a directory that stores all of my forms and
> reports.  This method works but it is slow.
> If I could just allow the forms and reports to remain in the working
> directory,  but have the datamodel change as I change clients,  that would
> make things a lot more efficient for me.

> the variable might read  D:\1998 books\mrjones

> then I could change it to  D:\1998 books\mrsmith

> Jim Sisco

--
Michael

 
 
 
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1. PDXWIN5.0; OPAL Changing DataModel

Hi all.  The situation is this:  

A department had two tables that had a master-child relationship.  They
were HUGE.  For performance reasons they broke this table into 16
master-child pairs, for a total of 32 tables.  Of course, these tables
have the same structure as the originals.  This is done, and they will
not undo it.

I have a form with 16 buttons on it, where the user can press on the
button representing which table pair they want to view.  

I want to design a form whose data model is changed on the fly by this
first form using OPAL, which displays one master record and a
table-object showing detail records.  This form will have heavy
customization of fonts, frames, colors, etc.  Could someone post/email
a code snippet for doing this?

By the way, the strategy of basing the form on a query result is much
too slow.

Thanks in advance if you can tell me how to do this.  I could hammer it
out; but this needs to get done soon and I'm already working overtime
on another project all through the Thanksgiving holiday. :(
--
John Baker
"What the hell does that mean?  Huh?  'China is here.'?
 I don't even know what the hell that means!"
        - Jack Burton

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