Coding Challenge

Alex Tweedly alex at tweedly.net
Fri Mar 11 18:56:23 EST 2011


You could use getRelationship() as I sent earlier, but it would be a bit 
clumsy. Easier to test for validity directly, something like (off the 
top of my head ...)

function canItBeValid p1, p2, pRelationship
   put sample(p1) into p1
   put sample(p2) into p2
   switch pRelationship
   case "="
      if p1 is among the lines of gOlder[p2] then return false
      if p2 is among the lines of gOlder[p1] then return false
      return true
   case "<"
      if p1 = p2 then return false
      if p1 is among the lines of gOlder[p2] then return false
      return true
   case ">
      if p1 = p2 then return false
      if p2 is among the lines of gOlder[p1] then return false
      return true
    default
       ask "bad relationship" && pRelationship
       return false
   end switch
end canItBeValid


but I see from a later email you have something already working, so go 
with that :-)

-- Alex.


On 11/03/2011 11:48, Malte Brill wrote:
> Hi Alex,
>
> well what I need to do is to check if the relationship I am wanting to set is valid or not, before I write it to the database. I might not be clear enough. But my goal is not really to check for existing relations, but the validity of the data I am about to enter into the Database. So if there is no relation at all, any relation is valid. Direct relations are clear and indirect relations need to be checked for.
>
> Maybe I just dot understand how I would use your script in that case.
>
> Sorry for the confusion.
>
> Malte
>
>
> _______________________________________________
> use-livecode mailing list
> use-livecode at lists.runrev.com
> Please visit this url to subscribe, unsubscribe and manage your subscription preferences:
> http://lists.runrev.com/mailman/listinfo/use-livecode
>





More information about the Use-livecode mailing list