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Extending the Extended Field Rendering
Before extending field rendering on the view page, fire the oro.entity_extend_event.before_value_render
event.
Using this event, you can customize field rendering.
As example of an event listener registration:
oro_entity_extend.listener.extend_field_value_render:
class: Oro\Bundle\EntityExtendBundle\EventListener\ExtendFieldValueRenderListener
arguments:
- '@oro_entity_config.config_manager'
- '@router'
- '@oro_entity_extend.extend.field_type_helper'
- '@doctrine.orm.entity_manager'
tags:
- { name: kernel.event_listener, event: oro.entity_extend_event.before_value_render, method: beforeValueRender }
Each event listener decides on how to display the field value. To change the field view value, it uses $event->setFieldViewValue($viewData);
.
Example:
$underlyingFieldType = $this->fieldTypeHelper->getUnderlyingType($type);
if ($value && $underlyingFieldType == 'manyToOne') {
$viewData = $this->getValueForManyToOne(
$value,
$this->extendProvider->getConfigById($event->getFieldConfigId())
);
$event->setFieldViewValue($viewData);
}
In this code, we should:
check if the value is not null, and the field type is “manyToOne”.
calculate the field view value and set it by calling
$event->setFieldViewValue($viewData);
Variable $viewData
can have a simple string or an array ['link' => 'example.com', 'title' => 'some text representation']
.
In case of a string, it will be formatted in a twig template automatically based on the field type. In case of an array, we show a field with text equal to 'title'
. Title will also be escaped. If the 'link'
option exists, we show the field as a link with href that equals the 'link'
option value.