我在主页中使用magento2.2.2中的小部件显示产品。我将核心文件复制到我的自定义主题，文件路径是
d：\ XAMPP \ htdocs中\ PROJECT_NAME \应用\设计\前端\ CustomTheme \ THEMENAME \ Magento_CatalogWidget \模板\产品\插件\内容\ grid.phtml
数量增量/减量工作正常，但当我尝试在购物车中添加增量或减量数量时，它只会添加一个数量，下面是我的代码“ grid.phtml ”。 看到这个屏幕截图。的 http://prntscr.com/ioset7
提前致谢。
<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
// @codingStandardsIgnoreFile
/** @var \Magento\CatalogWidget\Block\Product\ProductsList $block */
?>
<section class="featured-section">
<div class="container">
<?php if ($exist = ($block->getProductCollection() && $block->getProductCollection()->getSize())): ?>
<?php
$type = 'widget-product-grid';
$mode = 'grid';
$image = 'new_products_content_widget_grid';
$items = $block->getProductCollection()->getItems();
$showWishlist = true;
$showCompare = false;
$showCart = true;
$templateType = \Magento\Catalog\Block\Product\ReviewRendererInterface::DEFAULT_VIEW;
$description = false;
?>
<div class="block widget block-products-list <?= /* @noEscape */ $mode ?>">
<div class="row mb-4">
<div class="deals-title-cover">
<?php if ($block->getTitle()): ?>
<div class="block-title deals-title bg-color2">
<h2><strong><?= $block->escapeHtml(__($block->getTitle())) ?></strong></h2>
<p><a href="<?= $block->getUrl("hot-deals.html"); ?>">View All</a></p>
</div>
</div></div>
<?php endif ?>
<div class="block-content">
<?= /* @noEscape */ '<!-- ' . $image . '-->' ?>
<div class="<?= /* @noEscape */ $mode ?>">
<ol class="row product-items <?= /* @noEscape */ $type ?>">
<?php $iterator = 1; ?>
<?php foreach ($items as $_item): ?>
<?php if ($iterator++ != 1): ?></li><?php endif ?>
<li class="col-md-2 col-sm-3 col-xs-2 product-item">
<div class="product-item-cover mb-3">
<div class="product-img">
<a href="<?= $block->escapeUrl($block->getProductUrl($_item)) ?>" class="product-item-photo">
<?= $block->getImage($_item, $image)->toHtml() ?>
</a>
</div>
<div class="product-desc">
<h5 class="color2"><a title="<?= $block->escapeHtml($_item->getName()) ?>"
href="<?= $block->escapeUrl($block->getProductUrl($_item)) ?>"
class="product-item-link">
<?= $block->escapeHtml($_item->getName()) ?>
</a></h5>
<h4 class="open-sans-bold color3"><?php
echo $block->getProductPriceHtml($_item, $type);
?><span>/each<?php if ($templateType): ?>
<?= $block->getReviewsSummaryHtml($_item, $templateType) ?>
<?php endif; ?></span></h4>
</div>
<?php if ($showWishlist || $showCompare || $showCart): ?>
<?php if ($showWishlist || $showCompare): ?>
<div class="actions-secondary wishlist" data-role="add-to-links">
<?php if ($this->helper('Magento\Wishlist\Helper\Data')->isAllow() && $showWishlist): ?>
<a href="#"
data-post='<?= /* @noEscape */ $block->getAddToWishlistParams($_item) ?>' class="action towishlist" data-action="add-to-wishlist added" title="<?= $block->escapeHtmlAttr(__('Add to Wish List')) ?>">
<!--<span><?= $block->escapeHtml(__('Add to Wish List')) ?></span>-->
</a>
<?php endif; ?>
<?php if ($block->getAddToCompareUrl() && $showCompare): ?>
<?php $compareHelper = $this->helper('Magento\Catalog\Helper\Product\Compare');?>
<a href="#" class="action tocompare" data-post='<?= /* @noEscape */ $compareHelper->getPostDataParams($_item) ?>' title="<?= $block->escapeHtmlAttr(__('Add to Compare')) ?>">
<!--<span><?= $block->escapeHtml(__('Add to Compare')) ?></span>-->
<i class="fa fa-heart"></i>
</a>
<?php endif; ?>
</div>
<?php endif; ?>
<?php if ($showCart): ?>
<div class="actions-primary add-to-cart">
<?php if ($_item->isSaleable()):?>
<div class="pro-qty">
<div class="qty-cover">
<button type="button" class="plus" id ="home_list_qty_decrease_qty"><i class="fa fa-minus"></i></button>
<input type="number" name="qty"
id="qty"
value="<?php /* @escapeNotVerified */ echo $_item->getProductDefaultQty() * 1 ?>"
title="<?= /* @escapeNotVerified */ __('Qty') ?>"
class="input-text qty form-control"
data-validate="<?= $block->escapeHtml(json_encode($block->getQuantityValidators())) ?>"
/>
<button type="button" class="plus" id="home_list_qty_increase_qty"><i class="fa fa-plus"></i></button>
</div>
</div>
<?php if ($_item->getTypeInstance()->hasRequiredOptions($_item)): ?>
<button class="action tocart primary btn btn-cart" data-mage-init='{"redirectUrl":{"url":"<?= $block->escapeUrl($block->getAddToCartUrl($_item)) ?>"}}' type="button" title="<?= $block->escapeHtmlAttr(__('Add to Cart')) ?>">
<?= $block->escapeHtml(__('Add to Cart')) ?>
</button>
<?php else: ?>
<?php
$postDataHelper = $this->helper('Magento\Framework\Data\Helper\PostHelper');
$postData = $postDataHelper->getPostData($block->getAddToCartUrl($_item), ['product' => $_item->getEntityId()])
?>
<button class="action tocart primary btn btn-cart" data-post='<?= /* @noEscape */ $postData ?>' type="button" title="<?= $block->escapeHtmlAttr(__('Add to Cart')) ?>">
<?= $block->escapeHtml(__('Add to Cart')) ?>
</button>
<?php endif; ?>
<?php else: ?>
<?php if ($_item->getIsSalable()): ?>
<div class="stock available"><span><?= $block->escapeHtml(__('In stock')) ?></span></div>
<?php else: ?>
<div class="stock unavailable"><span><?= $block->escapeHtml(__('Out of stock')) ?></span></div>
<?php endif; ?>
<?php endif; ?>
</div>
<?php endif; ?>
</div>
<?php endif; ?>
<?= ($iterator == count($items)+1) ? '</li>' : '' ?>
<?php endforeach ?>
<div>
</ol>
</div>
<?= $block->getPagerHtml() ?>
</div>
</div>
<script>
require(['jquery'],function($){
jQuery(document).ready(function(){
jQuery('button#home_list_qty_increase_qty').click(function() {
var oldVal = Number(jQuery(this).prev().val());
if ( oldVal >= 0 ) {
var newVal = oldVal + 1;
jQuery(this).prev().val(newVal);
}
});
jQuery('button#home_list_qty_decrease_qty').click(function() {
var oldVal = Number(jQuery(this).next().val());
if ( oldVal >= 1 ) {
var newVal = oldVal - 1;
jQuery(this).next().val(newVal);
}
});
});
});
</script>
<?php endif;?>
</div></section>
答案 0 :(得分：-1)
不要在多个元素中使用相同的id。 id是具体的。你可以改用班级。
但我们仍然可以使用以下方式破解：
这
button#home_list_qty_increase_qty和button#home_list_qty_decrease_qty
更改为
button[id="home_list_qty_increase_qty"]和button[id="home_list_qty_decrease_qty"]