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« 11. Improve performance of large datasets

12. Virtual Field Descriptions

Some fields including in the various Mappers don’t rely on any actual field in the Model (e.g., _action or 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 simply be returned without prying on the Model itself.

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