NAME

Giza2 - Giza Catalog References

ABOUT THIS DOCUMENT

This document describes the catalog object reference implementation in Giza2.

SPECIFICATION OF GIZA CATALOG OBJECT REFERENCES

A reference is identified by checking the type field. If the type field has a type of G_OBJ_REF (currently defined as 2), it is a reference to another object.

Each object has it's own refs_to_us field, this should be incremented and decremented as references to the object are created and deleted. Additionally a cronjob or similiar should be ran at appropriate times to ensure that all objects are in sync with their count of references.

To ensure a consistent way of allowing references, the following rules should apply:

1.1 A object cannot be deleted until the refs_to_us field is 0.

1.2 The reference recursion depth cannot exceed 100.

1.3 A reference cannot point to itself or a reference that points back.

FUNCTIONS

int delete_all_references(int $objectid)

AUTHORS

Ask Solem Hoel <ask@startsiden.no<gt>