How to add sales rule action fieldset in customer group area

Question

I want to add sales rule fieldset to customer group form using custom module.

can any one please guide me on this how to add this sales rule condition form under customer group edit form and save this info in custom table for later use on frontend.

Here is how i would like to display in customer group form.

Problem is that sales rule is build using uicomponent and customer group form is build using generic class extended with \Magento\Backend\Block\Widget\Form\Generic So how can we add uicomponent in generic form

Also how to validate this condition on frontend please.

Answer 1

Here is the full customer group form file Magento\Customer\Block\Adminhtml\Group\Edit\Form with Rule fieldset.

You should override this to your custom module and change according to your need.

    <?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Magento\Customer\Block\Adminhtml\Group\Edit;

use Magento\Customer\Controller\RegistryConstants;
use Magento\Framework\App\ObjectManager;

/**
 * Adminhtml customer groups edit form
 */
class Form extends \Magento\Backend\Block\Widget\Form\Generic
{
    /**
     * Core registry
     *
     * @var \Magento\Backend\Block\Widget\Form\Renderer\Fieldset
     */
    protected $_rendererFieldset;

    /**
     * @var \Magento\Rule\Block\Conditions
     */
    protected $_conditions;

    /**
     * @var \Magento\SalesRule\Model\RuleFactory
     */
    private $ruleFactory;
    /**
     * @var \Magento\Tax\Model\TaxClass\Source\Customer
     */
    protected $_taxCustomer;

    /**
     * @var \Magento\Tax\Helper\Data
     */
    protected $_taxHelper;

    /**
     * @var \Magento\Customer\Api\GroupRepositoryInterface
     */
    protected $_groupRepository;

    /**
     * @var \Magento\Customer\Api\Data\GroupInterfaceFactory
     */
    protected $groupDataFactory;

    /**
     * @param \Magento\Backend\Block\Template\Context $context
     * @param \Magento\Framework\Registry $registry
     * @param \Magento\Framework\Data\FormFactory $formFactory
     * @param \Magento\Tax\Model\TaxClass\Source\Customer $taxCustomer
     * @param \Magento\Tax\Helper\Data $taxHelper
     * @param \Magento\Customer\Api\GroupRepositoryInterface $groupRepository
     * @param \Magento\Customer\Api\Data\GroupInterfaceFactory $groupDataFactory
     * @param array $data
     */
    public function __construct(
        \Magento\Backend\Block\Template\Context $context,
        \Magento\Framework\Registry $registry,
        \Magento\Framework\Data\FormFactory $formFactory,
        \Magento\Tax\Model\TaxClass\Source\Customer $taxCustomer,
        \Magento\Tax\Helper\Data $taxHelper,
        \Magento\Customer\Api\GroupRepositoryInterface $groupRepository,
        \Magento\Customer\Api\Data\GroupInterfaceFactory $groupDataFactory,
        \Magento\Rule\Block\Conditions $conditions,
        \Magento\Backend\Block\Widget\Form\Renderer\Fieldset $rendererFieldset,
        array $data = []
    ) {
        $this->_taxCustomer = $taxCustomer;
        $this->_taxHelper = $taxHelper;
        $this->_groupRepository = $groupRepository;
        $this->groupDataFactory = $groupDataFactory;
        $this->_rendererFieldset = $rendererFieldset;
        $this->_conditions = $conditions;
        parent::__construct($context, $registry, $formFactory, $data);
    }

    /**
     * Prepare form for render
     *
     * @return void
     */
    private function getRuleFactory()
    {
        if ($this->ruleFactory === null) {
            $this->ruleFactory = ObjectManager::getInstance()->get('Magento\SalesRule\Model\RuleFactory');
        }
        return $this->ruleFactory;
    }
    protected function _prepareLayout()
    {
        parent::_prepareLayout();

        /** @var \Magento\Framework\Data\Form $form */
        $form = $this->_formFactory->create();

        $groupId = $this->_coreRegistry->registry(RegistryConstants::CURRENT_GROUP_ID);
        /** @var \Magento\Customer\Api\Data\GroupInterface $customerGroup */
        if ($groupId === null) {
            $customerGroup = $this->groupDataFactory->create();
            $defaultCustomerTaxClass = $this->_taxHelper->getDefaultCustomerTaxClass();
        } else {
            $customerGroup = $this->_groupRepository->getById($groupId);
            $defaultCustomerTaxClass = $customerGroup->getTaxClassId();
        }

        $fieldset = $form->addFieldset('base_fieldset', ['legend' => __('Group Information')]);

        $validateClass = sprintf(
            'required-entry validate-length maximum-length-%d',
            \Magento\Customer\Model\GroupManagement::GROUP_CODE_MAX_LENGTH
        );
        $name = $fieldset->addField(
            'customer_group_code',
            'text',
            [
                'name' => 'code',
                'label' => __('Group Name'),
                'title' => __('Group Name'),
                'note' => __(
                    'Maximum length must be less then %1 characters.',
                    \Magento\Customer\Model\GroupManagement::GROUP_CODE_MAX_LENGTH
                ),
                'class' => $validateClass,
                'required' => true
            ]
        );

        if ($customerGroup->getId() == 0 && $customerGroup->getCode()) {
            $name->setDisabled(true);
        }

        $fieldset->addField(
            'tax_class_id',
            'select',
            [
                'name' => 'tax_class',
                'label' => __('Tax Class'),
                'title' => __('Tax Class'),
                'class' => 'required-entry',
                'required' => true,
                'values' => $this->_taxCustomer->toOptionArray(),
            ]
        );

        if ($customerGroup->getId() !== null) {
            // If edit add id
            $form->addField('id', 'hidden', ['name' => 'id', 'value' => $customerGroup->getId()]);
        }

        if ($this->_backendSession->getCustomerGroupData()) {
            $form->addValues($this->_backendSession->getCustomerGroupData());
            $this->_backendSession->setCustomerGroupData(null);
        } else {
            // TODO: need to figure out how the DATA can work with forms
            $form->addValues(
                [
                    'id' => $customerGroup->getId(),
                    'customer_group_code' => $customerGroup->getCode(),
                    'tax_class_id' => $defaultCustomerTaxClass,
                ]
            );
        }

        $model = $this->_coreRegistry->registry('\Magento\SalesRule\Model\RegistryConstants::CURRENT_SALES_RULE');

        if (!$model) {
            $id = $this->getRequest()->getParam('rule_id');
            $model = $this->getRuleFactory()->create();
            $model->load($id);
        }
        $formName = 'sales_rule_form';
        $conditionsFieldSetId = $model->getConditionsFieldSetId($formName);
        $newChildUrl = $this->getUrl(
            'sales_rule/promo_quote/newConditionHtml/form/' . $conditionsFieldSetId,
            ['form_namespace' => $formName]
        );
         $form->setHtmlIdPrefix('rule_');

        $renderer = $this->_rendererFieldset->setTemplate(
            'Magento_CatalogRule::promo/fieldset.phtml'
        )->setNewChildUrl($newChildUrl)->setFieldSetId(
            $conditionsFieldSetId
        );

        $fieldset = $form->addFieldset(
            'conditions_fieldset',
            [
                'legend' => __(
                    'Apply the rule only if the following conditions are met (leave blank for all products).'
                )
            ]
        )->setRenderer(
            $renderer
        );

        $fieldset->addField(
            'conditions',
            'text',
            ['name' => 'conditions', 'label' => __('Conditions'), 'title' => __('Conditions')]
        )->setRule(
            $model
        )->setRenderer(
            $this->_conditions
        );

        $form->setUseContainer(true);
        $form->setId('edit_form');
        $form->setAction($this->getUrl('customer/*/save'));
        $form->setMethod('post');
        $this->setForm($form);
    }
}

It will add the condition block inside your customer group add/edit form.

For more details Reference