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  • 2. Define Field Type

Step 2 - Define the Point 2D Field Type

The Type class

The Type contains logic of the Field Type: validating data, transforming from various formats, describing the validators, etc. In this example Point 2D Field Type will extend the eZ\Publish\SPI\FieldType\Generic\Type class. For more information about the Type class of a Field Type, see Type class.

Field Type identifier

First, create src/FieldType/Point2D/Type.php. Add a getFieldTypeIdentifier() method to it. The new method will return the string that uniquely identifies your Field Type, in this case point2d:

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<?php
declare(strict_types=1);

namespace App\FieldType\Point2D;

use eZ\Publish\SPI\FieldType\Generic\Type as GenericType;

final class Type extends GenericType
{
    public function getFieldTypeIdentifier(): string
    {
        return 'point2d';
    }
}

Add a new service definition

Next, add the ezplatform.field_type tag to config/services.yaml:

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services:
    App\FieldType\Point2D\Type:
        tags:
            - { name: ezplatform.field_type, alias: point2d }