FUNCTION acyclic_approval_relationship
(relation : approval_relationship, relatives : SET [1:?] OF approval, specific_relation : STRING) : BOOLEAN;
LOCAL x : SET OF approval_relationship; END_LOCAL;
IF relation.relating_approval IN relatives THEN RETURN (FALSE); END_IF; x := QUERY(app <* bag_to_set(USEDIN(relation.relating_approval, 'APPROVAL_SCHEMA.' + 'APPROVAL_RELATIONSHIP.' + 'RELATED_APPROVAL')) | specific_relation IN TYPEOF(app)); REPEAT i := 1 TO HIINDEX(x); IF NOT acyclic_approval_relationship(x[i], relatives + relation.relating_approval, specific_relation) THEN RETURN (FALSE); END_IF; END_REPEAT; RETURN (TRUE); END_FUNCTION; -- acyclic_approval_relationship
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