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The documentation is moving!

We're moving our developer docs to Github and a new site.
The migration is still in progress, so please contact us in #documentation-contrib on eZ Community Slack if you have any questions or feedback.

This space will not be updated from now on except for critical fixes.

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This Field Type is used as fallback and for testing purposes.

NameInternal nameExpected input type


As integration with Legacy Stack requires that all Field Types are also also handled on 5.x stack side, Null Field Type is provided as a dummy for legacy Field Types that are not really implemented on 5.x side.


Null Field Type will accept anything provided as a value, but will not store anything to the database, nor will it read any data from the database.

This Field Type does not have its own fixed internal name. Its identifier is instead configured as needed by passing it as an argument to the constructor.

Following example shows how Null Field Type is used to configure dummy implementations for ezcomcomments and ezpaex legacy datatypes:

Code Block
titleNull Fieldtype example configuration
    ezpublish.fieldType.eznull.class: eZ\Publish\Core\FieldType\Null\Type

        class: %ezpublish.fieldType.eznull.class%
        parent: ezpublish.fieldType
        arguments: [ "ezcomcomments" ]
            - {name: ezpublish.fieldType, alias: ezcomcomments}
        class: %ezpublish.fieldType.eznull.class%
        parent: ezpublish.fieldType
        arguments: [ "ezpaex" ]
            - {name: ezpublish.fieldType, alias: ezpaex}