Magento 2 - Custom Action for Catalog Rule - magento2

Question

I need to create custom action for the Catalog Price Rule. Not the whole custom Catalog Rule, but just action, which I can select. The purpose of this action is simply recalculating product prices based on some criterias.
How can I achieve it?

Answer 1

To achieve your requirement try with the below steps.
In your custom module override the catalog_rule_form.xml
Inside catalog_rule_form.xml find the below fieldset
<fieldset name="actions" sortOrder="30">
Inside the above actions fieldset, you can find the existing rules which are predefined and then add your custom rule as below.
<rule name="4">
<value>custom_action</value>
<actions>
<action name="0">
<target>catalog_rule_form.catalog_rule_form
.actions.discount_amount</target>
<callback>setValidation</callback>
<params>
<param name="0" xsi:type="string">validate-number-range</param>
<param name="1" xsi:type="string">false</param>
</params>
</action>
</actions>
</rule>
2) Next Override
Magento\CatalogRule\Model\Rule\Action\SimpleActionOptionsProvider.php
<?php
namespace Magento\CatalogRule\Model\Rule\Action;
class SimpleActionOptionsProvider implements
\Magento\Framework\Data\OptionSourceInterface
{
/**
* #return array
*/
public function toOptionArray()
{
return [
[
'label' => __('Apply as percentage of original'),
'value' => 'by_percent'
],
[
'label' => __('Apply as fixed amount'),
'value' => 'by_fixed'
],
[
'label' => __('Adjust final price to this percentage'),
'value' => 'to_percent'
],
[
'label' => __('Adjust final price to discount value'),
'value' => 'to_fixed'
],
[
'label' => __('Custom Action'),
'value' => 'custom_action'
]
];
}
}
Result:
[enter image description here][1]
[1]: https://i.stack.imgur.com/EjG19.png