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Running some perl from formapi

tsrookie

Gidday all,

I have written some formapi stuff to set the dcr name based on the user selection from a drop down box.

What I want to do is now do some scripting to check to see that they haven't already saved a dcr with the chosen name, I assume perl is the way to go?

My formapi stuff is below

function init(){
// register some event handlers
IWEventRegistry.addItemHandler( "/menuTitle", "onItemChange", setDCRName );

}

function setDCRName(item){
dcrName = item.getOptions()[item.getValue()].value;

IWDCRInfo.setDCRName(dcrName);

return true;
}

init();

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Comments

gzevin

TeamSite iself will warn if youi attempt to overwrite an existing file? or I am missing something?

Greg Zevin, Ph.D. Comp. Sc.
Independent Interwoven Consultant/Architect
Sydney, AU

tsrookie

Thanks Greg,

yes I know TS warns you if you try to overwrite an existing file,

Because the name of the dcr is determined by the users selection of the item in the drop down list this seemed like an obvious place to check and see if a dcr of that name already existed.

Cheers
Colin

gzevin

in ANY case you can never be sure that this name is unique, till the very moment of the save event - and who guarantees that 2 and more separate users don't oi it at the same time? A slight possibility, but if there is a business rule for it, everything should be taken into account

so, basically, even if you check on the name, only implementing locking mechanisms will ensure the uniquness. Or some other (similar though) techniques - like implementing a counter in a locked file (as we do it).....

Greg Zevin, Ph.D. Comp. Sc.
Independent Interwoven Consultant/Architect
Sydney, AU

Adam Stoller

BTW - to slightly answer part of your question - if you're doing this all within FormAPI you can't use Perl - however, in order to check the existance of a file on the server from FormAPI - you'd end up doing a CallServer() [which runs *asynchronously*] to invoke a script on the server - and *that* could be written in Perl.

As to the mechanics and headaches involved - I think Greg has already touched on those.

--fish
Senior Consultant, Quotient Inc.
http://www.quotient-inc.com

hitc

you can use an inline on a perl script that will check all the dcr that exist in the data directory and generate formapi script between 2 substitions tags.I made it and it is working fine but it is not perfect because if someone else create a dcr with the same name during your edition,the test will not work.But it is better than nothing.