这个bug解决了很久，花了两三个月时间。最后发现是用了amasty affiliate插件的bug。
因为这个bug，不报错，直接502，查了很久。最后复现成功，才找到。
这里记录一下:
vendor/amasty/affiliate/Plugin/Promo/Model/ResourceModel/Rule/Collection.php
<?php
/**
* @author Amasty Team
* @copyright Copyright (c) 2018 Amasty (https://www.amasty.com)
* @package Amasty_Affiliate
*/
namespace Amasty\Affiliate\Plugin\Promo\Model\ResourceModel\Rule;
use Amasty\Affiliate\Model\RegistryConstants;
use Magento\Framework\DB\Select;
use Magento\Checkout\Model\Session as CheckoutSession;
class Collection
{
/**
* @var \Amasty\Affiliate\Model\ResourceModel\Program\Collection
*/
private $programCollection;
/**
* @var \Magento\Framework\Stdlib\CookieManagerInterface
*/
private $cookieManager;
/**
* @var \Magento\Framework\App\Request\Http
*/
private $request;
/**
* @var \Amasty\Affiliate\Api\AccountRepositoryInterface
*/
private $accountRepository;
/**
* @var \Magento\Framework\Registry
*/
private $registry;
/**
* @var CheckoutSession
*/
private $checkoutSession;
/**
* @var \Amasty\Affiliate\Model\ResourceModel\Coupon\CollectionFactory
*/
private $couponCollectionFactory;
/**
* @var \Amasty\Affiliate\Model\ResourceModel\Account\CollectionFactory
*/
private $accountCollectionFactory;
/**
* Collection constructor.
* @param \Amasty\Affiliate\Model\ResourceModel\Program\Collection $programCollection
* @param \Magento\Framework\Stdlib\CookieManagerInterface $cookieManager
* @param \Magento\Framework\App\Request\Http $request
* @param \Amasty\Affiliate\Api\AccountRepositoryInterface $accountRepository
* @param \Magento\Framework\Registry $registry
* @param CheckoutSession $checkoutSession
* @param \Amasty\Affiliate\Model\ResourceModel\Coupon\CollectionFactory $couponCollectionFactory
* @param \Amasty\Affiliate\Model\ResourceModel\Account\CollectionFactory $accountCollectionFactory
*/
public function __construct(
\Amasty\Affiliate\Model\ResourceModel\Program\Collection $programCollection,
\Magento\Framework\Stdlib\CookieManagerInterface $cookieManager,
\Magento\Framework\App\Request\Http $request,
\Amasty\Affiliate\Api\AccountRepositoryInterface $accountRepository,
\Magento\Framework\Registry $registry,
CheckoutSession $checkoutSession,
\Amasty\Affiliate\Model\ResourceModel\Coupon\CollectionFactory $couponCollectionFactory,
\Amasty\Affiliate\Model\ResourceModel\Account\CollectionFactory $accountCollectionFactory
) {
$this->programCollection = $programCollection;
$this->cookieManager = $cookieManager;
$this->request = $request;
$this->accountRepository = $accountRepository;
$this->registry = $registry;
$this->checkoutSession = $checkoutSession;
$this->couponCollectionFactory = $couponCollectionFactory;
$this->accountCollectionFactory = $accountCollectionFactory;
}
/**
* @param \Magento\SalesRule\Model\ResourceModel\Rule\Collection $subject
* @param bool $printQuery
* @param bool $logQuery
*/
public function beforeLoad(
\Magento\SalesRule\Model\ResourceModel\Rule\Collection $subject,
$printQuery = false,
$logQuery = false
) {
if ($this->isAffiliate()) {
/** @var Select $select */
$select = $subject->getSelect();
$whereParts = $select->getPart(Select::WHERE);
$affiliateRuleIds = $this->programCollection
->addFieldToFilter('main_table.is_active', ['eq' => 1])
->getColumnValues('rule_id');
$affiliateRuleIds = join("','", $affiliateRuleIds);
foreach ($whereParts as $key => $wherePart) {
if ($wherePart == "AND (`is_active` = '1')") {
$whereParts[$key] = "AND ((`is_active` = '1') OR main_table.rule_id IN ('$affiliateRuleIds'))";
}
if ($wherePart == "AND (`main_table`.`coupon_type` = '1')") {
$whereParts[$key] = "AND (`main_table`.`coupon_type` = '1')
OR main_table.rule_id IN ('$affiliateRuleIds')";
}
}
$select->setPart(Select::WHERE, $whereParts);
}
}
/**
* @return bool
*/
public function isAffiliate()
{
$isAffiliate = false;
if($this->checkoutSession->hasQuote()){
$couponCode = $this->checkoutSession->getQuote()->getCouponCode();
if (!empty($couponCode)) {
/** @var \Amasty\Affiliate\Model\ResourceModel\Coupon\Collection $couponCollection */
$couponCollection = $this->couponCollectionFactory->create();
$couponCollection->addCouponFilter($couponCode);
if ($couponCollection->getSize() > 0) {
/** @var \Amasty\Affiliate\Model\Account $account */
$account = $this->accountRepository->getByCouponCode($couponCode);
if ($account->getAccountId() != null && $account->getIsAffiliateActive()) {
$isAffiliate = true;
}
}
} else {
$affiliateCode = $this->cookieManager
->getCookie(RegistryConstants::CURRENT_AFFILIATE_ACCOUNT_CODE);
if ($affiliateCode !== null) {
/** @var \Amasty\Affiliate\Model\ResourceModel\Account\Collection $accountCollection */
$accountCollection = $this->accountCollectionFactory->create();
$accountCollection->addCodeFilter($affiliateCode);
if ($accountCollection->getSize() > 0) {
/** @var \Amasty\Affiliate\Model\Account $account */
$account = $this->accountRepository->getByReferringCode($affiliateCode);
if ($affiliateCode != null && $account->getIsAffiliateActive()) {
$isAffiliate = true;
}
}
}
}
}
return $isAffiliate;
}
}