Preventing empty Fields

[Wickerman]

I'm baffled by a simple (I thought) script I've set up to create new 'Keywords' in a Lexicon Table that holds a record for each Keyword that the user can use to 'tag' various media items via a join field.

Each Keyword involves 3 fields (Word/Category/Authority) and I've set up global fields for their entry and a script that takes these values and creates a new Keyword record based upon them. This has been working fine.

But I want to make sure the user can't create a new Keyword with any of the three fields empty. So at the beginning of the script I did a triple "IF" condition:

IsEmpty ( CFA_Lexicon::NewKeyword_g ) or IsEmpty ( CFA_Lexicon::Lexicon_Authority ) or IsEmpty ( CFA_Lexicon::Lexicon_Category )

-- whereupon you get a dialogue box scolding the user to fill in all three fields, and Exit Script.

So, here's the odd thing: when the Lexicon Window where all this action goes on is first opened, the script allows me to create a Keyword with empty fields . . . ONCE. Thereafter the script enforces field entry as I planned. Or, if I create the flawed record and then delete it the script allows me to do it again. My record creation script clears the three global fields after creating a new record, and I've added the same global-clearing commands to the script that opens the Lexicon Window too, for good measure --- - SetField[GlobalField1;""] etc.

I'm having a hard time pinning down exactly when it allows the flaw. I've tried the process with the data viewer watching the global fields and stepping through with the debugger -- and sure enough, at these times the script allows me to step *right through* the IsEmpty test even though I can see that the Global Fields are empty in the data viewer!

Whatever can the matter be?

Albert

[RalphL]

I've set up global fields for their entry and a script that takes these values and creates a new Keyword record based upon them. This has been working fine.

But I want to make sure the user can't create a new Keyword with any of the three fields empty. So at the beginning of the script I did a triple "IF" condition:

IsEmpty ( CFA_Lexicon::NewKeyword_g ) or IsEmpty ( CFA_Lexicon::Lexicon_Authority ) or IsEmpty ( CFA_Lexicon::Lexicon_Category )

I see CFA_Lexicon::NewKeyword_g is indicated to be a global but the other 2 fields look like regular fields. Could this be your problem?

I use a custom dialog box for this so i don't need to have the field on a layout.

[Wickerman]

Oh . . . FOR CRYING OUT LOUD!

I can't believe I wasted nearly an hour and ruined my lunch overlooking that simple error -- thanks Ralph!.

Albert