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After post trigger go to the specific item. [message #576824]

Fri, 08 February 2013 04:00

reppihsrow
Messages: 22
Registered: October 2012

Junior Member

I have this layout

http://img339.imageshack.us/img339/975/capturetbo.png

and a post trigger insert and update

                IF  :item1 IS NULL
		AND :item3 IS NOT NULL THEN
				alert_id := FIND_ALERT('blank_alert');
				SET_ALERT_PROPERTY(alert_id,ALERT_MESSAGE_TEXT,'Item3 must have a value.');
				v_alert := SHOW_ALERT(alert_id);		
				RAISE Form_trigger_Failure;
		END IF;

My problem was as it fires, the cursor will be on the item1.
I've already use

SET_ITEM_INSTANCE_PROPERTY
NEXT_ITEM
GO_ITEM

but it was all illegal. The cursor must be in the item3.

Don't question me why I do not set the item3 to required and why post triggers. Very Happy

It is just that. Very Happy

It is the requirement.
Any bright Idea? Thanks!

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Re: After post trigger go to the specific item. [message #576825 is a reply to message #576824]

Fri, 08 February 2013 04:01

reppihsrow
Messages: 22
Registered: October 2012

Junior Member

And even when-validate-item triggers. It must be post triggers.
Is it possible? Thanks.

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Re: After post trigger go to the specific item. [message #576826 is a reply to message #576825]

Fri, 08 February 2013 04:17

Littlefoot
Messages: 21808
Registered: June 2005
Location: Croatia, Europe

Senior Member
Account Moderator

I can't see the image because of our security policy. Please, get used to attach images to your messages - don't post links to them.

Code you wrote and words you used collide. Code says

... and :item3 is NOT null

while alert says

item3 must have a value

That doesn't make sense - alert will be displayed if item3 is NOT null so it obviously has some value. What's the point?

I don't understand what "post trigger insert and update" is/are.

The simplest way of making items required is to set their "Required" property to "yes" - but you don't want to do that.
Validation should be done in WHEN-VALIDATE-ITEM triggers, not "post whatever-you-call-them".

As of "it was all illegal" - you can't use restricted procedures in "post" triggers anyway; read upon these procedures in Forms Help.

As you chose not to use two valid options I can think of, I'm afraid you'll have to wait for someone smarter than me to assist.

P.S. Saying that "it is the requirement" - who said so?

[Updated on: Fri, 08 February 2013 04:18]

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Re: After post trigger go to the specific item. [message #576924 is a reply to message #576826]

Sun, 10 February 2013 21:26

reppihsrow
Messages: 22
Registered: October 2012

Junior Member

Thanks for the reply Littlefoot.
It was solved already. I was helped by someone.
(It is the requirement for us in this activity.)

POST-TRIGGER

DECLARE
timer_id				   TIMER;
one_second 		            NUMBER := 1000;
BEGIN
<validations . . .>
timer_id := CREATE_TIMER('timer', one_second,NO_REPEAT);
END;

WHEN-TIMER-EXPIRED

GO_ITEM

Sorry for the typo error. That should be

IF  :item3 IS NULL
		AND :item1 IS NOT NULL THEN

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Re: After post trigger go to the specific item. [message #576933 is a reply to message #576924]

Sun, 10 February 2013 23:59

Littlefoot
Messages: 21808
Registered: June 2005
Location: Croatia, Europe

Senior Member
Account Moderator

I'm glad you made it work. Moreover, thank you for sharing the solution with us.

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