References

Local references

Local references are used to reference and validate values inside the same document.

Example:

record Item
{
        [schema meta=(reference.id="item" reference.source reference.unique)]
        string id;

        // other fields
        ...

}
[schema meta=(reference.id="item" reference.validate)]
define ItemRef string;

variant Card.CardInventory[inventory]
{
        list<Item> items;
        ?ItemRef default_item;
}

In the example:

• item is used as a reference source

• ItemRef type can hold any id from an item’s collection

In Hercules, you get to view a combo box. Hercules also validates non-existing references.