It's caused by the fact that your model constructor does not match your original model constructor.
So this is the constructor from Magento\Newsletter\Model\Queue :
public function __construct(
\Magento\Framework\Model\Context $context,
\Magento\Framework\Registry $registry,
\Magento\Newsletter\Model\Template\Filter $templateFilter,
\Magento\Framework\Stdlib\DateTime\DateTime $date,
\Magento\Newsletter\Model\TemplateFactory $templateFactory,
\Magento\Newsletter\Model\ProblemFactory $problemFactory,
\Magento\Newsletter\Model\ResourceModel\Subscriber\CollectionFactory $subscriberCollectionFactory,
\Magento\Newsletter\Model\Queue\TransportBuilder $transportBuilder,
\Magento\Framework\Model\ResourceModel\AbstractResource $resource = null,
\Magento\Framework\Data\Collection\AbstractDb $resourceCollection = null,
array $data = []
) {
parent::__construct(
$context,
$registry,
$resource,
$resourceCollection,
$data
);
$this->_templateFilter = $templateFilter;
$this->_date = $date;
$this->_templateFactory = $templateFactory;
$this->_problemFactory = $problemFactory;
$this->_subscribersCollection = $subscriberCollectionFactory->create();
$this->_transportBuilder = $transportBuilder;
}
To fix your constructor it needs to be:
public function __construct(
\Magento\Framework\Model\Context $context,
\Magento\Framework\Registry $registry,
\Magento\Newsletter\Model\Template\Filter $templateFilter,
\Magento\Framework\Stdlib\DateTime\DateTime $date,
\Magento\Newsletter\Model\TemplateFactory $templateFactory,
\Magento\Newsletter\Model\ProblemFactory $problemFactory,
\Magento\Newsletter\Model\ResourceModel\Subscriber\CollectionFactory $subscriberCollectionFactory,
\Magento\Newsletter\Model\Queue\TransportBuilder $transportBuilder,
\Magento\Framework\Model\ResourceModel\AbstractResource $resource = null,
\Magento\Framework\Data\Collection\AbstractDb $resourceCollection = null,
\Vendor\Module\Block\Testing $customergroup,
\Magento\Customer\Model\ResourceModel\Group\Collection $customergroupdata,
array $data = []
)
{
$this->_customergroup = $customergroup;
$this->_customergroupdata = $customergroupdata;
parent::__construct(
$context,
$registry,
$templateFilter,
$date,
$templateFactory,
$problemFactory,
$subscriberCollectionFactory,
$transportBuilder,
$resource,
$resourceCollection,
$data
);
}
1. Add your phtml to additional info block, by creating following file: /Nano/CommissionAgents/view/frontend/layout/customer_account_create.xml.
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="1column" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
<body>
<referenceContainer name="form.additional.info">
<block class="Magento\Framework\View\Element\Template" name="customer_groups_additional_info_customer" template="Nano_CommissionAgents::addcustomergroup.phtml"/>
</referenceContainer>
</body>
</page>
2. Now create phtml file : /Nano/CommissionAgents/view/frontend/templates/addcustomergroup.phtml
<?php
$blockObj= $block->getLayout()->createBlock('Nano\CommissionAgents\Block\CustomerGroups');
$groups = $blockObj->getCustomerGroup();
?>
<div class="field group_id required">
<label for="group_id" class="label"><span><?php /* @escapeNotVerified */ echo __('I want to register as') ?></span></label>
<div class="control">
<select name="group_id">
<?php foreach ($groups as $key => $data) { ?>
<option value="<?php echo $data['value'] ?>"><?php echo $data['label'] ?>"</option>
<?php } ?>
</select>
</div>
</div>
3. Create a Block to fetch all customer groups that we have to use in phtml. Create block file at (/Nano/CommissionAgents/Block/CustomerGroups.php)
<?php
namespace Nano\CommissionAgents\Block;
use Magento\Framework\View\Element\Template;
use Magento\Customer\Model\ResourceModel\Group\Collection as CustomerGroup;
Class CustomerGroups extends Template {
public $_customerGroup;
public function __construct(
CustomerGroup $customerGroup
) {
$this->_customerGroup = $customerGroup;
}
public function getCustomerGroup() {
$groups = $this->_customerGroup->toOptionArray();
return $groups;
}
}
4. Create an Observer for event "customer_register_success". For this create an events.xml in (/Nano/CommissionAgents/etc/frontend/events.xml)
<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
<event name="customer_register_success">
<observer name="save_customer_group" instance="Nano\CommissionAgents\Observer\SaveCustomerGroupId" />
</event>
</config>
5. Create observer class to save customer group after registration in file (/Nano/CommissionAgents/Observer/SaveCustomerGroupId.php)
<?php
namespace Nano\CommissionAgents\Observer;
use Magento\Framework\Event\ObserverInterface;
use Magento\Customer\Api\CustomerRepositoryInterface;
use Magento\Framework\Message\ManagerInterface;
Class SaveCustomerGroupId implements ObserverInterface {
public $_customerRepositoryInterface;
public $_messageManager;
public function __construct(
CustomerRepositoryInterface $customerRepositoryInterface,
ManagerInterface $messageManager
) {
$this->_customerRepositoryInterface = $customerRepositoryInterface;
$this->_messageManager = $messageManager;
}
public function execute(\Magento\Framework\Event\Observer $observer) {
$accountController = $observer->getAccountController();
$request = $accountController->getRequest();
$group_id = $request->getParam('group_id');
try {
$customerId = $observer->getCustomer()->getId();
$customer = $this->_customerRepositoryInterface->getById($customerId);
$customer->setGroupId($group_id);
$this->_customerRepositoryInterface->save($customer);
} catch (Exception $e){
$this->_messageManager->addErrorMessage(__('Something went wrong! Please try again.'));
}
}
}
6. Now try registering after: setup-upgrade, cache flush, static-content-deply and check. Hope you will find customer group in frontend and also be able to save that group (can be verified in backend).
Best Answer
Try this,