Magento 2: Como adicionar uma grade de produtos no módulo personalizado usando o componente da interface do usuário?

Por favor, checar isto.

Etapa 1: adicione o seguinte código no formulário da interface do usuário

 <fieldset name="assign_products">
        <argument name="data" xsi:type="array">
            <item name="config" xsi:type="array">
                <item name="label" xsi:type="string" translate="true">Assign Products</item>
                <item name="collapsible" xsi:type="boolean">true</item>
                <item name="sortOrder" xsi:type="number">40</item>
            </item>
        </argument>
        <container name="assign_products_container" >
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="sortOrder" xsi:type="number">60</item>
                </item>
            </argument>
            <htmlContent name="html_content">
                <argument name="block" xsi:type="object">Namespace\Module\Block\Adminhtml\Products\Edit\AssignProducts</argument>
            </htmlContent>
        </container>
    </fieldset>

Etapa 2: criar AssignProducts.phpnoNamespace\Module\Block\Adminhtml\Products\Edit

namespace Namespace\Module\Block\Adminhtml\Products\Edit;

    class AssignProducts extends \Magento\Backend\Block\Template
    {
        /**
         * Block template
         *
         * @var string
         */
        protected $_template = 'products/assign_products.phtml';

        /**
         * @var \Magento\Catalog\Block\Adminhtml\Category\Tab\Product
         */
        protected $blockGrid;

        /**
         * @var \Magento\Framework\Registry
         */
        protected $registry;

        /**
         * @var \Magento\Framework\Json\EncoderInterface
         */
        protected $jsonEncoder;


        protected $_productCollectionFactory;

        /**
         * AssignProducts constructor.
         *
         * @param \Magento\Backend\Block\Template\Context $context
         * @param \Magento\Framework\Registry $registry
         * @param \Magento\Framework\Json\EncoderInterface $jsonEncoder
         * @param array $data
         */
        public function __construct(
            \Magento\Backend\Block\Template\Context $context,
            \Magento\Framework\Registry $registry,
            \Magento\Framework\Json\EncoderInterface $jsonEncoder,
            \Namespace\Module\Model\ResourceModel\Product\CollectionFactory $productCollectionFactory, //your custom collection
            array $data = []
        ) {
            $this->registry = $registry;
            $this->jsonEncoder = $jsonEncoder;
            $this->_productCollectionFactory = $productCollectionFactory;
            parent::__construct($context, $data);
        }

        /**
         * Retrieve instance of grid block
         *
         * @return \Magento\Framework\View\Element\BlockInterface
         * @throws \Magento\Framework\Exception\LocalizedException
         */
        public function getBlockGrid()
        {

            if (null === $this->blockGrid) {
                $this->blockGrid = $this->getLayout()->createBlock(
                    'Namespace\Module\Block\Adminhtml\Products\Edit\Tab\Product',
                    'category.product.grid'
                );
            }
            return $this->blockGrid;
        }

        /**
         * Return HTML of grid block
         *
         * @return string
         */
        public function getGridHtml()
        {

            return $this->getBlockGrid()->toHtml();
        }

        /**
         * @return string
         */
        public function getProductsJson()
        {

            $vProducts = $this->_productCollectionFactory->create()
                                    ->addFieldToFilter('customer_id',  $this->getItem()->getCustomerId()) 
                                    ->addFieldToSelect('product_id');   
            $products = array();
            foreach($vProducts as $pdct){      
                $products[$pdct->getProductId()]  = '';
            }       

            if (!empty($products)) {
                return $this->jsonEncoder->encode($products);
            }
            return '{}';
        }

        public function getItem()
        {
            return $this->registry->registry('my_item');
        }
    }

Etapa 3: Criar Product.php no Namespace\Module\Block\Adminhtml\Products\Edit\Tab\

namespace Namespace\Module\Block\Adminhtml\Products\Edit\Tab;

use Magento\Backend\Block\Widget\Grid;
use Magento\Backend\Block\Widget\Grid\Column;
use Magento\Backend\Block\Widget\Grid\Extended;

class Product extends \Magento\Backend\Block\Widget\Grid\Extended
{
    protected $logger;
    /**
     * Core registry
     *
     * @var \Magento\Framework\Registry
     */
    protected $_coreRegistry = null;

    /**
     * @var \Magento\Catalog\Model\ProductFactory
     */
    protected $_productFactory;


    protected $_productCollectionFactory;


    public function __construct(
        \Magento\Backend\Block\Template\Context $context,
        \Magento\Backend\Helper\Data $backendHelper,
        \Magento\Catalog\Model\ProductFactory $productFactory,
        \Namespace\Module\Model\ResourceModel\Product\CollectionFactory $productCollectionFactory,
        \Magento\Framework\Registry $coreRegistry,
        array $data = []
    ) {
        $this->_productFactory = $productFactory;
        $this->_coreRegistry = $coreRegistry;
        $this->_productCollectionFactory = $productCollectionFactory;
        parent::__construct($context, $backendHelper, $data);
    }

    /**
     * @return void
     */
    protected function _construct()
    {
        parent::_construct();
        $this->setId('catalog_category_products');
        $this->setDefaultSort('entity_id');
        $this->setUseAjax(true);
    }

    /**
     * @return array|null
     */
    public function getItem()
    {
        return $this->_coreRegistry->registry('my_item');
    }

    /**
     * @param Column $column
     * @return $this
     */
    protected function _addColumnFilterToCollection($column)
    {

        // Set custom filter for in category flag
        if ($column->getId() == 'in_category') {
            $productIds = $this->_getSelectedProducts();
            if (empty($productIds)) {
                $productIds = 0;
            }
            if ($column->getFilter()->getValue()) {
                $this->getCollection()->addFieldToFilter('entity_id', ['in' => $productIds]);
            } elseif (!empty($productIds)) {
                $this->getCollection()->addFieldToFilter('entity_id', ['nin' => $productIds]);
            }
        } else {
            parent::_addColumnFilterToCollection($column);
        }
        return $this;
    }

    /**
     * @return Grid
     */
    protected function _prepareCollection()
    {
        if ($this->getItem()->getId()) {
            $this->setDefaultFilter(['in_category' => 1]);
        }       
        $collection = $this->_productFactory->create()->getCollection()->addAttributeToSelect(
            'name'
        )->addAttributeToSelect(
            'sku'
        )->addAttributeToSelect(
            'price'
        )->joinField(
            'position',
            'catalog_category_product',
            'position',
            'product_id=entity_id',
            'category_id=' . (int)$this->getRequest()->getParam('id', 0),
            'left'
        );
        $storeId = (int)$this->getRequest()->getParam('store', 0);
        if ($storeId > 0) {
            $collection->addStoreFilter($storeId);
        }


        $this->setCollection($collection);

        if ($this->getItem()->getProductsReadonly()) {
            $productIds = $this->_getSelectedProducts();
            if (empty($productIds)) {
                $productIds = 0;
            }
            $this->getCollection()->addFieldToFilter('entity_id', ['in' => $productIds]);
        } 

        return parent::_prepareCollection();
    }

    /**
     * @return Extended
     */
    protected function _prepareColumns()
    {
        if (!$this->getItem()->getProductsReadonly()) {
            $this->addColumn(
                'in_category',
                [
                    'type' => 'checkbox',
                    'name' => 'in_category',
                    'values' => $this->_getSelectedProducts(),
                    'index' => 'entity_id',
                    'header_css_class' => 'col-select col-massaction',
                    'column_css_class' => 'col-select col-massaction'
                ]
            );
        }
        $this->addColumn(
            'entity_id',
            [
                'header' => __('ID'),
                'sortable' => true,
                'index' => 'entity_id',
                'header_css_class' => 'col-id',
                'column_css_class' => 'col-id'
            ]
        );
        $this->addColumn('name', ['header' => __('Name'), 'index' => 'name']);
        $this->addColumn('sku', ['header' => __('SKU'), 'index' => 'sku']);
        $this->addColumn(
            'price',
            [
                'header' => __('Price'),
                'type' => 'currency',
                'currency_code' => (string)$this->_scopeConfig->getValue(
                    \Magento\Directory\Model\Currency::XML_PATH_CURRENCY_BASE,
                    \Magento\Store\Model\ScopeInterface::SCOPE_STORE
                ),
                'index' => 'price'
            ]
        );
        $this->addColumn(
            'position',
            [
                'header' => __('Position'),
                'type' => 'number',
                'index' => 'position',
                'editable' => !$this->getItem()->getProductsReadonly()
            ]
        );
        return parent::_prepareColumns();
    }

    /**
     * @return string
     */
    public function getGridUrl()
    {
        return $this->getUrl('module/products/grid', ['_current' => true]);
    }

    /**
     * @return array
     */
    protected function _getSelectedProducts()
    {
        $products = $this->getRequest()->getPost('selected_products');
        if ($products === null) {   
            $vProducts = $this->_productCollectionFactory->create()
                                ->addFieldToFilter('customer_id',  $this->getItem()->getCustomerId()) 
                                ->addFieldToSelect('product_id');   
            $products = array();
            foreach($vProducts as $pdct){      
                $products[]  = $pdct->getProductId();
            }       
        }
        return $products;
    }
}

Etapa 4: criar assign_products.phtmlnoNamespace\Module\view\adminhtml\templates\products\

<?php
$blockGrid = $block->getBlockGrid();
$gridJsObjectName = $blockGrid->getJsObjectName();
?>
<?php  echo $block->getGridHtml(); ?>
<input type="hidden" name="category_products" id="in_category_products" data-form-part="your_form" value="" />
<script type="text/x-magento-init">
    {
        "*": {
            "Namespace_Module/products/assign-products": {
                "selectedProducts": <?php /* @escapeNotVerified */ echo $block->getProductsJson(); ?>,
                "gridJsObjectName": <?php /* @escapeNotVerified */ echo '"' . $gridJsObjectName . '"' ?: '{}'; ?>
            }
        }
    }
</script>
<!-- @todo remove when "UI components" will support such initialization -->
<script>
    require('mage/apply/main').apply();
</script>

Etapa 4: Copiar vendor/magento/module-catalog/view/adminhtml/web/catalog/category/assign-products.js paraNamespace/Module/view/adminhtml/web/products/

Etapa 5: criar Grid.php Namespace/Module/Controller/Adminhtml/Products

namespace Namespace\Module\Controller\Adminhtml\Products;

class Grid extends \Namespace\Module\Controller\Adminhtml\Products\Product
{
    /**
     * @var \Magento\Framework\Controller\Result\RawFactory
     */
    protected $resultRawFactory;

    /**
     * @var \Magento\Framework\View\LayoutFactory
     */
    protected $layoutFactory;

    /**
     * @param \Magento\Backend\App\Action\Context $context
     * @param \Magento\Framework\Controller\Result\RawFactory $resultRawFactory
     * @param \Magento\Framework\View\LayoutFactory $layoutFactory
     */
    public function __construct(
        \Magento\Backend\App\Action\Context $context,
        \Magento\Framework\Controller\Result\RawFactory $resultRawFactory,
        \Magento\Framework\View\LayoutFactory $layoutFactory
    ) {
        parent::__construct($context);
        $this->resultRawFactory = $resultRawFactory;
        $this->layoutFactory = $layoutFactory;
    }

    /**
     * Grid Action
     * Display list of products related to current category
     *
     * @return \Magento\Framework\Controller\Result\Raw
     */
    public function execute()
    {
        $item = $this->_initItem(true);
        if (!$item) {
            /** @var \Magento\Backend\Model\View\Result\Redirect $resultRedirect */
            $resultRedirect = $this->resultRedirectFactory->create();
            return $resultRedirect->setPath('module/item/new', ['_current' => true, 'id' => null]);
        }
        /** @var \Magento\Framework\Controller\Result\Raw $resultRaw */
        $resultRaw = $this->resultRawFactory->create();
        return $resultRaw->setContents(
            $this->layoutFactory->create()->createBlock(
                'Namespace\Module\Block\Adminhtml\Products\Edit\Tab\Product',
                'category.product.grid'
            )->toHtml()
        );
    }

     protected function _initItem($getRootInstead = false)
    {
        $id = (int)$this->getRequest()->getParam('id', false);
        $myModel = $this->_objectManager->create('Namespace\Module\Model\Item');

        if ($id) {
            $myModel->load($id);            
        }

        $this->_objectManager->get('Magento\Framework\Registry')->register('item', $myModel);
        $this->_objectManager->get('Magento\Framework\Registry')->register('my_item', $myModel);
        $this->_objectManager->get('Magento\Cms\Model\Wysiwyg\Config');
        return $storeModel;
    }   


}

Etapa 6: criar Product.php Namespace/Module/Controller/Adminhtml/Products

namespace Namespace\Module\Controller\Adminhtml\Products;


abstract class Product extends \Magento\Backend\App\Action
{
    /**
     * Authorization level of a basic admin session
     *
     * @see _isAllowed()
     */
    const ADMIN_RESOURCE = 'Namespace_Module::item_list';


}

Jancy Abraham
fonte

Eu seguindo spates acima, mas estou recebendo um erro, Call to a member function getProductsReadonly() on null in Product.phpvocê pode me ajudar?

Deexit Sanghani

Você pode, por favor, compartilhar seu código

Jancy Abraham

O mesmo problema aqui. Atenciosamente

TTech IT Solutions

Você pode compartilhar seu código

Jancy Abraham 17/17/17

@AveshNaik Copie o fornecedor / magento / catalog-module / view / adminhtml / web / catalog / category / assign-products.js para Namespace / Module / view / adminhtml / web / products /

Jancy Abraham

Magento 2: Como adicionar uma grade de produtos no módulo personalizado usando o componente da interface do usuário?

Respostas: