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TYPO3 extension simplify process of creating new content elements (CE) in Typo3 way

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Content element registry

Typo3 extension simplify process of creating new content elements (CE) in Typo3 way

Install

Install extension via composer composer req digitalwerk/content-element-registry and activate it in Extension module

Setup

After activating extension, you have to define your Content elements configuration classes. It can be done in two ways:

  1. By defining paths in extension configuration (aka extConf). Can contain comma separated list of paths to directories Example: EXT:your_ext_1/Classes/ContentElements/,EXT:your_ext_2/Classes/ContentElements/

  2. By registering Listener in Services.yaml of your extension as follows:

  Vendor\Extension\EventListeners\ContentElementRegistryListener:
    tags:
      - name: event.listener
        identifier: 'contentElementRegistryListener'
        event: Digitalwerk\ContentElementRegistry\Events\ContentElementRegistryClassEvent

Method Vendor\Extension\EventListeners\ContentElementRegistryListener can looks like this:

<?php
declare(strict_types=1);
namespace Vendor\Extension\EventListeners;

class ContentElementRegistryListener
{
    /**
     * @param RegisterContentElementRegistryClassEvent $event
     */
    public function __invoke(RegisterContentElementRegistryClassEvent $event): void
    {
        $contentElementRegistry = $event->getContentElementRegistry();
        $contentElementsClassMap = \Composer\Autoload\ClassMapGenerator::createMap(
            \TYPO3\CMS\Core\Core\Environment::getPublicPath() .
            '/typo3conf/ext/your_extension/Classes/ContentElement/'
        );
        foreach ($contentElementsClassMap as $elementClass => $elementClassPath) {
            $contentElementRegistry->registerContentElement(
                \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance($elementClass)
            );
        }
    }
}

Creating new content element

To create new Content element you have to create new Class inside your folder defined in Setup section which extends Digitalwerk\ContentElementRegistry\ContentElement\AbstractContentElementRegistryItem

<?php
namespace \YourVendor\YourExtension\ContentElement;

use Digitalwerk\ContentElementRegistry\ContentElement\AbstractContentElementRegistryItem;

class YourNewContentElement extends AbstractContentElementRegistryItem
{

}

After clearing typo3 caches you should now see new content element in wizard

As you can see, there is neither title nor description of the content element. These are automatically fetched and translated from locallang file inside of your extension: EXT:your_extension/Resources/Private/Language/locallang_db.xlf. You can now define your CE title and description as follows:

<trans-unit id="tt_content.yourextension_yournewcontentelement.title">
    <source>Your new content element</source>
</trans-unit>
<trans-unit id="tt_content.yourextension_yournewcontentelement.description">
    <source>Your new content element description</source>
</trans-unit>
<trans-unit id="tt_content.yourextension_yournewcontentelement.palette.default">
    <source>Default palette</source>
</trans-unit>

When you add this new CE it will contain only default CE fields:

Adding CE fields

To add new fields you have to define it in \YourVendor\YourExtension\ContentElement\YourNewContentElement:

<?php
namespace \YourVendor\YourExtension\ContentElement;

use Digitalwerk\ContentElementRegistry\ContentElement\AbstractContentElementRegistryItem;

class YourNewContentElement extends AbstractContentElementRegistryItem
{

    /**
     * YourNewContentElement constructor.
     * @throws \Exception
     */
    public function __construct()
    {
        parent::__construct();
        $this->addPalette(
            'default',
            'header, --linebreak--, bodytext'
        );
    }
}

By this, we defined new CE palette with name default with two fields header and bodytext.

Code description:

  1. Name of the palette must be unique per CE. Label for palette can be defined in locallang_db.xlf with following key: tt_content.yourextension_yournewcontentelement.palette.default
  2. Fields definition syntax must follows TCA palette showitem syntax
  3. Used fields must be properly configured in tt_content TCA
  4. You can add as many palettes as you need ;)

Our CE now should looks like this:

If you need to override field configuration you can do this in this way: (In following example we've enabled rich text editor for bodytext field)

<?php
    /**
     * @return array
     */
    public function getColumnsOverrides()
    {
        return [
            'bodytext' => [
                'config' => [
                    'enableRichtext' => true,
                ],
            ],
        ];
    }

CE Template

Template path of content element must be configured in typoscript as follow:

lib.contentElement {
    layoutRootPaths {
        10 = EXT:your_extension/Resources/Private/Layouts
    }

    partialRootPaths {
        10 = EXT:your_extension/Resources/Private/Partials
    }

    templateRootPaths {
        10 = EXT:your_extension/Resources/Private/Templates/ContentElements
    }
}

Template name is matched by CE class name. E.g. if is registered CE with class name YourNewContentElement this template must exists EXT:your_extension/Resources/Private/Templates/ContentElements/YourNewContentElement.html. Content of template can looks like this:

<html xmlns="http://www.w3.org/1999/xhtml" lang="en"
      xmlns:f="http://typo3.org/ns/TYPO3/Fluid/ViewHelpers"
      data-namespace-typo3-fluid="true">

<f:layout name="ContentElements/{contentElement.layout}" />

<f:section name="Main">
  ...
</f:section>

<f:section name="Preview">
  ...
</f:section>

</html>

Whether you use <f:layout /> and <f:section /> it's fully up to you. You can also add section <f:section name="Preview"> which is used for BE preview.

CE Icon

If you don't want to use the defaut icon, you can change it:

  • Add an icon to the folder EXT:your_extension/Resources/Public/Icons/ContentElement/yourextension_yournewcontentelement.svg

CE Domain Model

Model name is matched by CE class name. E.g. if is registered CE with class name YourNewContentElement this model can exists in EXT:your_extension/Classes/Domain/Model/YourNewContentElement.php Content of model can looks like this:

<?php
declare(strict_types=1);
namespace \YourVendor\YourExtension\Domain\Model\ContentElement;

use DigitalWerk\ContentElementRegistry\Domain\Model\ContentElement;

/**
 * Class YourNewContentElement
 * @package YourVendor\YourExtension\Domain\Model\ContentElement
 */
class YourNewContentElement extends ContentElement
{

}

Into class you can write some functions, getters, setters, etc. Some of them are inherited from DigitalWerk\ContentElementRegistry\Domain\Model\ContentElement (take a look ;).

Model in template

Model is accessible in the template of element with variable name {contentElement}. To find out what data is loaded in the model in the template use: <f:debug>{contentElement}</f:debug>.

Create a new field and setup

Create a new field

  1. Create a field in the table ext_table.sql, e.g. new_field.
  2. In the TCA EXT:your_extension/Configuration/TCA/Overrides/tt_content.php create new column and config Typo3 Columns Config:
<?php
defined('TYPO3') or die();

$ttContentNewColumns = [
    'new_field' => [
        'label' => 'New field',
        'config' => [
            'type' => 'input',
            'eval' => 'trim',
         ],
    ],
];

\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addTCAcolumns('tt_content', $ttContentNewColumns);

Setup a new field

  • In Class \YourVendor\YourExtension\ContentElement\YourNewContentElement add created field new_field:
<?php
namespace \YourVendor\YourExtension\ContentElement;

use YourVendor\ContentElementRegistry\ContentElement\AbstractContentElementRegistryItem;

class YourNewContentElement extends AbstractContentElementRegistryItem
{

    /**
     * YourNewContentElement constructor.
     * @throws \Exception
     */
    public function __construct()
    {
        parent::__construct();
        $this->addPalette(
            'default',
            'new_field'
        );
    }
}
  • In Model of CE EXT:your_extension/Classes/Domain/Model/YourNewContentElement.php add property of created field $newField. You must follow the syntax, e.g. new_field which is written in ext_table.php, you must write newField in the model.

Content element with IRRE

Mapping

Map in ext_typoscript_setup.typoscript relation table to CE model:

      YourVendor\YourExtension\Domain\Model\ContentElement\YourNewContentElement\YourNewRelation {
        mapping {
         tableName = tx_contentelementregistry_domain_model_relation
         recordType = yourextension_yournewcontentelement_yournewrelation
        }
      }

Register relation icon

You can register relation icon using Typo3 Icon API

Relation TCA

In TCA EXT:your_extension/Configuration/TCA/Overrides/tx_contentelementregistry_domain_model_relation.php create:

$tempTca = [
    'ctrl' => [
        'typeicon_classes' => [
            'yourextension_yournewcontentelement_yournewrelation' => 'yourextension_yournewcontentelement_yournewrelation',
        ],
    ],
    'types' => [
        'yourextension_yournewcontentelement_yournewrelation' => [
                    'showitem' => '--palette--;;mediaPalette,',
                ],
    ],
    'palettes' => [
        'mediaPalette' => [
            'showitem' => 'title, media',
        ],
    ],
    'columns' => [
        'title' => [
            'label' => 'Title',
            'config' => [
                'type' => 'text',
            ],
        ],

    ],
];

$GLOBALS['TCA']['tx_contentelementregistry_domain_model_relation'] = array_replace_recursive($GLOBALS['TCA']['tx_contentelementregistry_domain_model_relation'], $tempTca);

Relation add to CE

Add name of relation to palette:

<?php
namespace \YourVendor\YourExtension\ContentElement;

use YourVendor\ContentElementRegistry\ContentElement\AbstractContentElementRegistryItem;

class YourNewContentElement extends AbstractContentElementRegistryItem
{
  public function __construct()
    {
        parent::__construct();
        $this->addPalette(
            'default',
            'tx_contentelementregistry_relations'
        );
    }
}

Relation model

  • In model of CE create property and getter:
<?php
namespace \YourVendor\YourExtension\Domain\Model\ContentElement;

use DigitalWerk\ContentElementRegistry\Domain\Model\ContentElement;

/**
 * Class YourNewContentElement
 * @package YourVendor\YourExtension\Domain\Model\ContentElement
 */
class YourNewContentElement extends ContentElement
{
    /**
     * @var \TYPO3\CMS\Extbase\Persistence\ObjectStorage<\YourVendor\YourExtension\Domain\Model\ContentElement\YourNewContentElement\YourNewRelation>
     */
    protected $relations = null;

    /**
     * @return ObjectStorage|null
     */
    public function getRelations(): ? ObjectStorage
    {
        return $this->relations;
    }

}
  • Create a new file YourNewRelation.php in \YourVendor\YourExtension\Domain\Model\ContentElement\YourNewContentElement. Here you can write getters and properties for fields in TCA of Relation:
<?php
namespace \YourVendor\YourExtension\Domain\Model\ContentElement\YourNewContentElement;

use Digitalwerk\ContentElementRegistry\Domain\Model\Relation;

/**
 * Class YourNewRelation
 * @package YourVendor\YourExtension\Domain\Model\ContentElement\YourNewContentElement
 */
class YourNewRelation extends Relation
{
    /**
     * @var string
     */
    protected $type = '';

    /**
     * @return string
     */
    public function getType(): string
    {
        return $this->type;
    }

}

CE field mapping

In Class of CE you can map field, when you want to use it in model, e.g. tx_contentelementregistry_relations is called in the model txContentelementregistryRelation, but after mapping 'tx_contentelementregistry_relations' => 'relations',tx_contentelementregistry_relations is called in the model relations.

namespace \YourVendor\YourExtension\Domain\Model\ContentElement;

use DigitalWerk\ContentElementRegistry\Domain\Model\ContentElement;

/**
* Class YourNewContentElement
* @package YourVendor\YourExtension\Domain\Model\ContentElement
*/
class YourNewContentElement extends ContentElement
{
  /**
   * @var array
   */
  protected $columnsMapping = [
      'tx_contentelementregistry_relations' => 'relations',
  ];

}

##Changelog

v1.0.0

  • dropped support for typo3 8 and typo3 9
  • supported only typo3 v10.4
  • experimental headless support

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TYPO3 extension simplify process of creating new content elements (CE) in Typo3 way

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