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Query condition in form [message #613356]

Mon, 05 May 2014 08:23

nkumar0130
Messages: 55
Registered: August 2013
Location: Bangalore

Member

Hi,

I have a requirement in form on query part.
The form consist of two block suppose A and B and both the block is based on different table, both the block is having master-child relationship.
I have to add three fields in block A, but those column are not present in block A table but it is present in Block B table.
How to add query condition on these field so that user can get proper record on querying on the basis of newly added fields.

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Re: Query condition in form [message #613372 is a reply to message #613356]

Tue, 06 May 2014 00:10

Littlefoot
Messages: 21823
Registered: June 2005
Location: Croatia, Europe

Senior Member
Account Moderator

One option is to omit these 3 items from block A; perform query on existing block A items, then navigate to block B and perform another (sub)query on that result set in order to further refine it by querying on these 3 items (in block B).

Another option might be - if you add these items into block A and they make a relationship - adding additional joins into the relationship (such as "... and block_B.item_1 = block_A.item_1 and ...").

Or, you could set block B's ONETIME_WHERE property (using SET_BLOCK_PROPERTY built-in in block B's PRE-QUERY trigger) which would contain newly added items.

Or, use PRE-QUERY on block B and put something like

if :block_A.item_1 is not null then
   :block_B.item_1 := :block_A.item_1;
end if;

I can't think of any other option at the moment.

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