Magento2: Custom source model - Class does not exist

Question

I have created a multi-select EAV Attribute for my customers with a custom source model. However, whenever I browse to the customers management page or call getSource on the attribute, I get a class does not exist error for the source model. Am I missing something?

Sample exception:

Exception #0 (ReflectionException): Class Wizbusiness/CustomerSubscriptions/Model/Config/Source/ProductTags does not exist
Exception #0 (ReflectionException): Class Wizbusiness/CustomerSubscriptions/Model/Config/Source/ProductTags does not exist
#0 <path>/vendor/magento/framework/Code/Reader/ClassReader.php(19): ReflectionClass->__construct('Wizbusiness/Cus...')
#1 <path>/vendor/magento/framework/ObjectManager/Definition/Runtime.php(44): Magento\Framework\Code\Reader\ClassReader->getConstructor('Wizbusiness/Cus...')
#2 <path>/vendor/magento/framework/ObjectManager/Factory/Dynamic/Developer.php(71): Magento\Framework\ObjectManager\Definition\Runtime->getParameters('Wizbusiness/Cus...')
#3 <path>/vendor/magento/framework/ObjectManager/ObjectManager.php(57): Magento\Framework\ObjectManager\Factory\Dynamic\Developer->create('Wizbusiness/Cus...', Array)
#4 <path>/vendor/magento/framework/Validator/UniversalFactory.php(36): Magento\Framework\ObjectManager\ObjectManager->create('Wizbusiness/Cus...', Array)
#5 <path>/vendor/magento/module-eav/Model/Entity/Attribute/AbstractAttribute.php(538): Magento\Framework\Validator\UniversalFactory->create('Wizbusiness/Cus...')
#6 <path>/vendor/magento/module-customer/Model/AttributeMetadataConverter.php(66): Magento\Eav\Model\Entity\Attribute\AbstractAttribute->getSource()
...

For your reference module files: app/code/Wizbusiness/CustomerSubscriptions/Model/Config/Source/ProductTags.php:

<?php
namespace Wizbusiness\CustomerSubscriptions\Model;
/**
 * Tags copied from products
 *
 * @author Wizbusiness
 */
class ProductTags extends \Magento\Eav\Model\Entity\Attribute\Source\AbstractSource
{
 public function toArray()
 {
 return [];
 }
 /**
 * Options getter
 * @return array
 */
 final public function toOptionArray()
 {
 $objectManager = \Magento\Framework\App\ObjectManager::getInstance();
 $model = $objectManager->get('Magento\Catalog\Model\Product');
 $attribute = $model->getAttribute('tags');
 return $attribute->getAllOptions();
 }
 /**
 * @return array
 */
 public function getAllOptions()
 {
 return $this->toOptionArray();
 }
 /**
 * Get a text for option value
 *
 * @param string|integer $value
 * @return string|bool
 */
 public function getOptionText($value)
 {
 foreach ($this->getAllOptions() as $option) {
 if ($option['value'] == $value) {
 return $option['label'];
 }
 }
 return false;
 }
 /**
 * Retrieve flat column definition
 *
 * @return array
 */
 public function getFlatColumns()
 {
 $attributeCode = $this->getAttribute()->getAttributeCode();
 return [
 $attributeCode => [
 'unsigned' => false,
 'default' => null,
 'extra' => null,
 'type' => Table::TYPE_INTEGER,
 'nullable' => true,
 'comment' => 'Custom Attribute Options ' . $attributeCode . ' column',
 ],
 ];
 }
}

app/code/Wizbusiness/CustomerSubscriptions/Setup/InstallData.php:

<?php
namespace Wizbusiness\CustomerSubscriptions\Setup;
use Magento\Customer\Model\Customer;
use Magento\Customer\Setup\CustomerSetup;
use Magento\Customer\Setup\CustomerSetupFactory;
use Magento\Eav\Model\Entity\Attribute\Backend\ArrayBackend;
use Magento\Framework\Setup\InstallDataInterface;
use Magento\Framework\Setup\ModuleContextInterface;
use Magento\Framework\Setup\ModuleDataSetupInterface;
use Magento\Catalog\Model\Resource\Eav\Attribute;
class InstallData implements InstallDataInterface
{
 /**
 * @var CustomerSetupFactory
 */
 private $customerSetupFactory;
 public function __construct(CustomerSetupFactory $customerSetupFactory)
 {
 $this->customerSetupFactory = $customerSetupFactory;
 }
 /**
 * Upgrades data for a module
 *
 * @param ModuleDataSetupInterface $setup
 * @param ModuleContextInterface $context
 * @return void
 */
 public function install(ModuleDataSetupInterface $setup, ModuleContextInterface $context)
 {
 $setup->startSetup();
 $customerSetup = $this->customerSetupFactory->create(['setup' => $setup]);
 /** @var CustomerSetup $customerSetup */
 $customerSetup->addAttribute(
 Customer::ENTITY,
 'subscribedtags',
 [
 'type' => 'text',
 'input' => 'multiselect',
 'label' => 'Subscribed Tags',
 'required' => 0,
 'system' => 0, // <-- important, otherwise values aren't saved.
 // @see Magento\Customer\Model\Metadata\CustomerMetadata::getCustomAttributesMetadata()
 'position' => 100,
 'filterable' => true,
 'source' => 'Wizbusiness/CustomerSubscriptions/Model/Config/Source/ProductTags',
 'global' => \Magento\Eav\Model\Entity\Attribute\ScopedAttributeInterface::SCOPE_GLOBAL,
 ]
 );
 $used_in_forms=array();
 $used_in_forms[]="adminhtml_customer";
 $used_in_forms[]="checkout_register";
 $used_in_forms[]="customer_account_create";
 $used_in_forms[]="customer_account_edit";
 $used_in_forms[]="adminhtml_checkout";
 $customerSetup->getEavConfig()->getAttribute('customer', 'subscribedtags')
 ->setData('used_in_forms', $used_in_forms)
 ->setData("is_used_for_customer_segment", true)
 ->setData("is_user_defined", 1)
 ->save();
 $setup->endSetup();
 }
}

app/code/Wizbusiness/CustomerSubscriptions/etc/module.xml:

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
 <module name="Wizbusiness_CustomerSubscriptions" setup_version="0.0.11" />
</config>

app/code/Wizbusiness/CustomerSubscriptions/registration.php:

<?php
\Magento\Framework\Component\ComponentRegistrar::register(
 \Magento\Framework\Component\ComponentRegistrar::MODULE,
 'Wizbusiness_CustomerSubscriptions',
 __DIR__
);

• Vladimir Novitsky: You set sourse 'Wizbusiness/CustomerSubscriptions/Model/Config/Source/ProductTags'. Did you create file "ProductTags.php" in "Wizbusiness/CustomerSubscriptions/Model/Config/Source" folder?

Answer 1

In eav_attribute table check the class Wizbusiness/CustomerSubscriptions/Model/Config/Source/ProductTags exist or not.I hope it will help you.

Answer 2

Be careful at namespace in ProductTags.php:

namespace Wizbusiness\CustomerSubscriptions\Model;

I think there need to be:

namespace Wizbusiness\CustomerSubscriptions\Model\Config\Source;

Answer 3

Run the below query to delete custom EAV attribute

DELETE FROM eav_attribute WHERE source_model="Wizbusiness/CustomerSubscriptions/Model/Config/Source/ProductTags";