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Define Parent Copy Derivations

You can obtain parent values without cascade processing if the parent value is subsequently altered by defining Parent Copy derivations. Parent Role Names are derived from Foreign Key relationships.

For more information:

For example, in the Demo application, we want to retain the quoted product price so that it does not change if the product price is subsequently ordered.  This provides the intended business result: if you buy on Monday, your order total is not affected by a Tuesday price change.

Contrast this to a formula, which provides parent reference with cascade processing. The following image shows an example of a parent copy derivation in API Creator:


Rule nameLeave this field blank for the system default.
Table/columnThe name of the parent table and column representing the value to be copied into 
Parent attribute to copyDefines parent role (first combo box) and attribute (second combo box) from which to copy
 Active Select this checkbox to activate the rule (The definition must be complete).

Note: This only applies during a POST. Changes to the parent attribute does not impact this attribute on the child.