15. Virtual Field Descriptions¶
Some fields including in the various Mappers don’t rely on any actual field in
the Model (e.g., ListMapper::NAME_ACTIONS
or ListMapper::NAME_BATCH
).
In order to prevent any side-effects when trying to retrieve the value of this
field (which doesn’t exist), the option virtual_field
is specified for these
fields.
When the template is instantiated, or whenever the value of the field is
required, null
will be returned without prying on the Model itself.