A code style question

[Peter Haworth]

A slightly corrected/modified version.

To set the baseID:

set the baseID of this stack to baseID(newID)

To get the baseID

get the baseID of this stack.

The function(s) then become

function baseID newID
   if newID is empty then
      return baseID_newIDempty()
   else
      return baseID_newIDnotempty(newID)
   end if
end baseID

function baseID_newIDempty

   if not exists (the baseID of this stack) then
         return "this card"
   else
      return the baseID of this stack
   end if

end baseID_newIDempty

function baseID_newIDNotEmpty newid

   if exists newID then
     return newID
   else
      return "this card"
   end if

end baseID_newIDNotEmpty


Pete
lcSQL Software <http://www.lcsql.com>
Home of lcStackBrowser <http://www.lcsql.com/lcstackbrowser.html> and
SQLiteAdmin <http://www.lcsql.com/sqliteadmin.html>

On Tue, Jan 20, 2015 at 8:45 AM, Peter Haworth <pete at lcsql.com> wrote:

> I'd go with the first one. The second one makes my eyes glaze over! Plus I
> think there should be an else before the second if in the second function.
>
> I might consider something like this.
>
> function baseID newID
>    if newID is empty then
>       baseID_newIDempty
>    else
>       baseID_newIDnotempty
>    end if
>    Return the baseID of this stack
> end baseID
>
> The two subsidiary handlers would have the logic from your first function
> for empty/not empty.
>
> Pete
> lcSQL Software
> It would be good to post code that works:
>
> function baseID newID
>    if (newID is not empty and not exists(newID)) or \
>          (newID is empty and not exists(the baseID of this stack)) then \
>          set the baseID of this stack to "this card"
>    if newID is not empty then set the baseID of this stack to newID
>    return the baseID of this stack
> end baseID
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