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  • Relation Field Type

Relation Field Type

This Field Type makes it possible to store and retrieve the value of a relation to another Content item.

Name Internal name Expected input
Relation ezobjectrelation mixed

PHP API Field Type

Input expectations

Type Example
string "150"
integer 150

Value object

Properties

The Value class of this Field Type contains the following properties:

Property Type Description
$destinationContentId string|int|null This property is used to store the value provided, which represents the related content. 
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// Value object content example

$relation->destinationContentId = $contentInfo->id;
Constructor

The Relation\Value constructor will initialize a new Value object with the value provided. It expects a mixed value.

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// Constructor example

// Instantiates a Relation Value object
$relationValue = new Relation\Value( $contentInfo->id );

Validation

This Field Type validates whether the provided relation exists, but before that it will check that the value is either a string or an int.

Settings

The Field definition of this Field Type can be configured with three options:

Name Type Default value Description
selectionMethod int Relation\Type::SELECTION_BROWSE This setting is not implemented yet, only one selection method is available.
selectionRoot string null This setting defines the selection root.
selectionContentTypes array [] An array of Content Type IDs that are allowed for related Content. 
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// Relation FieldType example settings

use eZ\Publish\Core\FieldType\Relation\Type;

$settings = [
    "selectionMethod" => 1,
    "selectionRoot" => null,
    "selectionContentTypes" => []
];