Philosophically, I wouldn't mix and match selection and sorting, but
rather handle these as  distinct phases. It's simpler, cleaner and you
never know what they're going to want next.


Bill



> I wrote a program to sort a address list by zipcode. Nice and 
> straightforward.
> 
> Then it growed. :-)
> 
> I added functionality for it to sort a single list into 
> multiple versions. To do this, I created a cursor with the 
> versions in it and skipped through the cursor, sorting once 
> for each version.
> 
> Only problem is, this doesn't work well if you don't have 
> versions. :-)
> 
> The solution I came up with involved wrapping all the 
> accesses to crsrVersion so that they wouldn't be accessed if 
> they didn't exist.
> 
> a)
> IF llMultiVersion
>       GO 1 IN crsrVersions
> ENDIF
> 
> FOR i = 1 TO lnVersionCount
>       *!* Sort the versions
> 
>       IF llMultiVersion
>               SKIP IN crsrVersions
>       ENDIF
> ENDFOR
> 
> IF llMultiVersion
>       USE IN crsrVersions
> ENDIF
> 
> On one hand, this is good, because it keeps the sort code in 
> one place. On the other hand, it's kinda fugly.
> 
> Possible solutions:
> 
> b)
> IF llMultiVersions
>     *!* Sort multiple versions
> ELSE
>     *!* Sort one version
> ENDIF
> 
> This might be cleanest, but it puts the main point of the 
> program, the SORT/COPY FOX2X code, in two different places.
> 
> c)
> IF NOT llMultiVersions
>     CREATE CURSOR crsrVersions
>     INSERT INTO crsrVersions
> ENDIF
> 
> *!* Sort multiple versions, possibly for values of multiple
> *!* equal to 1.
> 
> This is probably the way I should go, but it involves 
> creating a cursor which might not be semantically needed.
> 
> So, what do you think? a, b, or c?



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