Reference Field

This describe the magic data structure used for defining a REFERENCE field. These options all live under

/modules/forms/formClasses/$formClass/fields/$field

for the given form class $formClass and field name $field.

Magic Data Structure

• display: required parent node. names of sub-nodes are the names of the forms that this field can reference.
  • $refForm: required parent node. The name of the node, $refForm, is a form that this field can reference.
    • default: required parent node. The default display for the referenced form
      • printf: required (translatable) scalar node. A string which will get passed to printf to display the node. Example is "%s %s" which contains two substitutions
      • printf_args: required parent node: Sub-nodes should be ordered integers. requires 0..n sub-nodes if the printf contains (n+1) substutions.
        • 0: required scalar node the name of the first field whose display value is passed to printf
        • 1: requried scalar node the name of the next field whose display value is passed to printf
        • ...
        • n: requried scalar node the name of the last field whose display value is passed to printf
    • $display: optional parent node. Another named display for this field. Sub-nodes are exactly the same as those defined for default

A REFERENCE field is only considered valid if the form it references, $refForm, is one who has a node under display.