The Null FieldType

This field type is used for fallback and testing purposes.

Name	Internal name	Expected input type
`Null`	`variable`	`mixed`

Description

As integration with Legacy Stack requires that all FieldTypes are also a= lso handled on 5.x stack side, Null FieldType is provided as a dummy for le= gacy FieldTypes that are not really implemented on 5.x side.

Null FieldType will accept anything provided as a value, but will not st= ore anything to the database, nor will it read any data from the database.<= /p>

This FieldType does not have its own fixed internal name. Its identifier= is instead configured as is needed by passing it as an argument to the con= structor.

Following example shows how Null FieldType is used to configure dummy im= plementations for ezcomcomments and ezpaex legacy= datatypes:

Null Fieldtype example configuration

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parameters:
    ezpublish.fieldType.eznull.class: eZ\Publish\Core\FieldType\Null\Type

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

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