Add AdminGws support to MSI.

[nmalevanec]

Description (*)

Fixed Issues (if relevant)

1. none.

Manual testing scenarios (*)

1. Create additional website.
2. Create additional stock and source for new website.
3. Create product with default source and custom assigned.
4. Create admin user with restriction for main website.
5. Navigate to source grid and verify default source is not visible.
6. Navigate to stock grid and verify default stock is not visible.
7. Navigate to product grid and verify only custom source and stock visible in product row.
8. Open product edit page and verify only custom source and stock visible in product row.
9. Add some changes to custom source and save product.
10. Login with admin user without restrictions.
11. Navigate to product edit page and verify only custom source has changed.

Questions or comments

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds are green)

[smoskaluk]

Hi @nmalevanec , I've got such error during placing order from admin:
Steps to reproduce:

1. Create additional website.
2. Create additional stock and source for new website.
3. Create product with inventory on custom source.
4. Create admin user with restriction for main website.
5. Try to place order from admin with this product

CRITICAL: Error: Call to undefined method Magento\Sales\Api\Data\OrderExtension::setBaseCustomerBalanceAmount() in ../app/code/Magento/CustomerBalance/Model/Plugin/OrderRepository.php:49
Stack trace:
#0 /lib/internal/Magento/Framework/Interception/Interceptor.php(146): Magento\CustomerBalance\Model\Plugin\OrderRepository->afterGet(Object(Magento\Sales\Model\OrderRepository\Interceptor), Object(Magento\Sales\Model\Order\Interceptor), '1')
#1 /lib/internal/Magento/Framework/Interception/Interceptor.php(153): Magento\Sales\Model\OrderRepository\Interceptor->Magento\Framework\Interception{closure}('1')
#2 /generated/code/Magento/Sales/Model/OrderRepository/Interceptor.php(26): Magento\Sales\Model\OrderRepository\Interceptor->___callPlugins('get', Array, Array)
#3 /app/code/Magento/Sales/Controller/Adminhtml/Order.php(155): Magento\Sales\Model\OrderRepository\Interceptor->get('1')
#4 /app/code/Magento/Sales/Controller/Adminhtml/Order/View.php(26): Magento\Sales\Controller\Adminhtml\Order->_initOrder()
#5 /generated/code/Magento/SalesArchive/Controller/Adminhtml/Order/View/Interceptor.php(24): Magento\Sales\Controller\Adminhtml\Order\View->execute()
#6 /lib/internal/Magento/Framework/App/Action/Action.php(107): Magento\SalesArchive\Controller\Adminhtml\Order\View\Interceptor->execute()
#7 /app/code/Magento/Backend/App/AbstractAction.php(231): Magento\Framework\App\Action\Action->dispatch(Object(Magento\Framework\App\Request\Http))
#8 /lib/internal/Magento/Framework/Interception/Interceptor.php(58): Magento\Backend\App\AbstractAction->dispatch(Object(Magento\Framework\App\Request\Http))
#9 /lib/internal/Magento/Framework/Interception/Interceptor.php(138): Magento\SalesArchive\Controller\Adminhtml\Order\View\Interceptor->___callParent('dispatch', Array)
#10 /app/code/Magento/Backend/App/Action/Plugin/Authentication.php(143): Magento\SalesArchive\Controller\Adminhtml\Order\View\Interceptor->Magento\Framework\Interception{closure}(Object(Magento\Framework\App\Request\Http))
#11 /lib/internal/Magento/Framework/Interception/Interceptor.php(135): Magento\Backend\App\Action\Plugin\Authentication->aroundDispatch(Object(Magento\SalesArchive\Controller\Adminhtml\Order\View\Interceptor), Object(Closure), Object(Magento\Framework\App\Request\Http))
#12 /lib/internal/Magento/Framework/Interception/Interceptor.php(153): Magento\SalesArchive\Controller\Adminhtml\Order\View\Interceptor->Magento\Framework\Interception{closure}(Object(Magento\Framework\App\Request\Http))
#13 /generated/code/Magento/SalesArchive/Controller/Adminhtml/Order/View/Interceptor.php(39): Magento\SalesArchive\Controller\Adminhtml\Order\View\Interceptor->___callPlugins('dispatch', Array, NULL)
#14 /lib/internal/Magento/Framework/App/FrontController.php(162): Magento\SalesArchive\Controller\Adminhtml\Order\View\Interceptor->dispatch(Object(Magento\Framework\App\Request\Http))
#15 /lib/internal/Magento/Framework/App/FrontController.php(99): Magento\Framework\App\FrontController->processRequest(Object(Magento\Framework\App\Request\Http), Object(Magento\SalesArchive\Controller\Adminhtml\Order\View\Interceptor))
#16 /lib/internal/Magento/Framework/Interception/Interceptor.php(58): Magento\Framework\App\FrontController->dispatch(Object(Magento\Framework\App\Request\Http))
#17 /lib/internal/Magento/Framework/Interception/Interceptor.php(138): Magento\Framework\App\FrontController\Interceptor->___callParent('dispatch', Array)
#18 /lib/internal/Magento/Framework/Interception/Interceptor.php(153): Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception{closure}(Object(Magento\Framework\App\Request\Http))
#19 /generated/code/Magento/Framework/App/FrontController/Interceptor.php(26): Magento\Framework\App\FrontController\Interceptor->___callPlugins('dispatch', Array, Array)
#20 /lib/internal/Magento/Framework/App/Http.php(116): Magento\Framework\App\FrontController\Interceptor->dispatch(Object(Magento\Framework\App\Request\Http))
#21 /generated/code/Magento/Framework/App/Http/Interceptor.php(24): Magento\Framework\App\Http->launch()
#22 /lib/internal/Magento/Framework/App/Bootstrap.php(260): Magento\Framework\App\Http\Interceptor->launch()
#23 /index.php(39): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http\Interceptor))
#24 {main} [] []

[nmalevanec]

@smoskaluk, I wasn't able to reproduce described issue. Followed the steps - order placed successfully