Oracle Forms Developer – Form Builder Reference, Volume 1

GET_RELATION_PROPERTY examples
NEXT_DETAIL_RELATION Returns the VARCHAR2 name of the
next detail relation, if one exists. To get the name of the first detail for a
given block, issue a call to GET_BLOCK_PROPERTY. Returns NULL if
none exists.
NEXT_MASTER_RELATION Returns the VARCHAR2 name of the
next relation, if one exists. To get the name of the first relation for a given
block, issue a call to GET_BLOCK_PROPERTY. Returns NULL if one
does not exist.
PREVENT_MASTERLESS_OPERATION Returns the VARCHAR2
value TRUE if this relation property is Yes, FALSE if it is No. When set to
Yes, Form Builder does not allow records to be inserted in the detail block
when there is no master record in the master block, and does not allow
querying in the detail block when there is no master record from the
database.
/*
** Built-in: GET_RELATION_PROPERTY
** Example: If the relation is not deferred, then go
** coordinate the detail block. Otherwise, mark
** the detail block as being in need of
** coordination for an eventual deferred query.
*/
PROCEDURE Query_The_Details(rel_id Relation,
detail VARCHAR2) IS
BEGIN
IF Get_Relation_Property(rel_id, DEFERRED_COORDINATION)
= ’FALSE’ THEN
Go_Block(detail);
IF NOT Form_Success THEN
RAISE Form_trigger_Failure;
END IF;
Execute_Query;
ELSE
Set_Block_Property(detail, coordination_status,
NON_COORDINATED);
END IF;
End;
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