Magento – Magento 2 – Add Quantity Field

addtocartextensionsmagento2quantity

I'm trying to edit a related products extension by adding a quantity box next to the add to cart button. Here is the block of code it needs to be added to:

<?php if ($showCart): ?>
  <div class="actions-primary">
  <?php if ($_item->isSaleable()): ?>
    <?php if ($_item->getTypeInstance()->hasRequiredOptions($_item)): ?>
      <button class="action tocart primary" data-mage-init='{"redirectUrl": {"url": "<?php /* @escapeNotVerified */ echo $block->getAddToCartUrl($_item) ?>"}}' type="button" title="<?php /* @escapeNotVerified */ echo __('Add to Cart') ?>">
        <span><?php /* @escapeNotVerified */ echo __('Add to Cart') ?></span>
      </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"
            data-post='<?php /* @escapeNotVerified */ echo $postData; ?>'
            type="button" title="<?php /* @escapeNotVerified */ echo __('Add to Cart') ?>">
      <span><?php /* @escapeNotVerified */ echo __('Add to Cart') ?></span>
    </button>
   <?php endif; ?>
 <?php else: ?>
<?php if ($_item->getIsSalable()): ?>
    <div class="stock available"><span><?php /* @escapeNotVerified */ echo __('In stock') ?></span></div>
   <?php else: ?>
<div class="stock unavailable"><span><?php /* @escapeNotVerified */ echo __('Out of stock') ?></span></div>
   <?php endif; ?>
  <?php endif; ?>
</div>
<?php endif; ?>

I have a quantity field in the template now, but no matter what quantity I enter, it always adds 1 to the cart.

Best Answer

You need define new observer

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="catalog_product_collection_load_after">
        <observer name="Your_Module_Add_Quantity" instance="Your\Module\Observer\AddQuantityToCollectionObserver"/>
    </event>
</config>

With code like

namespace Your\Module\Observer;
class AddQuantityToCollectionObserver implements ObserverInterface
{
    /**
     * Add information about product Quantity to collection
     * Used for product collection after load
     *
     * @param EventObserver $observer
     * @return void
     */
    public function execute(EventObserver $observer)
    {
        $productCollection = $observer->getEvent()->getCollection();
        $websiteId = $this->storeManager->getStore($productCollection->getStoreId())->getWebsiteId();
        foreach ($productCollection as $product) {
            $productId = $product->getId();
            $stockStatus = $this->stockRegistryProvider->getStockStatus($productId, $websiteId);
            $product->setQty($stockStatus->getQty());
        }
    }
}

You can also take refernce from https://magento.stackexchange.com/a/98085/33354

Related Solutions

Get Add to Cart URL in Custom Template File – Magento 2

You can try this, it work for me.

<?php
$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$listBlock = $objectManager->get('\Magento\Catalog\Block\Product\ListProduct');
$addToCartUrl =  $listBlock->getAddToCartUrl($product);
?>

<form data-role="tocart-form" action="<?php echo $addToCartUrl; ?>" method="post"> 
    <?php echo $block->getBlockHtml('formkey')?>
    <div class="btn">
        <button type="submit" title="Add to Cart" class="action tocart primary">
            <span>Add to Cart</span>
        </button>
    </div>   
 </form>

Magento 2.2.3 – How to Create Custom Form

Create layout XML

/app/code/Company/Module/view/frontend/layout/module_index_custom.xml

<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="1column" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <referenceContainer name="content">
        <block class="Company\Module\Block\Custom" name="customer_index_gallery" template="Vendor_Module::custom.phtml" cacheable="false"/>
    </referenceContainer>
</page>

/app/code/Company/Module/Block/Custom.php

<?php

namespace Vendor\Module\Block;

class Custom extends \Magento\Framework\View\Element\Template
{
    /**
     * Construct
     *
     * @param \Magento\Framework\View\Element\Template\Context $context
     * @param array $data
     */
    public function __construct(
        \Magento\Backend\Block\Template\Context $context,
        array $data = []
    )
    {
        parent::__construct($context, $data);
       }

    /**
     * Get form action URL for POST booking request
     *
     * @return string
     */
    public function getFormAction()
    {
        return '/companymodule/controller_name/custom';
        // here controller_name is index, action is booking
    }
}

/app/code/Company/Module/view/frontend/templates/custom.phtml

<form action="<?php echo $block->getFormAction() ?>" method="post">
    <input name="firstname" type="text">
    <input name="lastname" type="text">
    <input name="email" type="text">
    <input type="submit" value="informations">
</form>

/app/code/Company/Module/Controller/Index/Custom.php

<?php

namespace Company\Module\Controller\Index;

use Magento\Framework\Controller\ResultFactory;

class Custom extends \Magento\Framework\App\Action\Action
{
    /**
     * Booking action
     *
     * @return void
     */
    public function execute()
    {
        // 1. POST request : Get booking data
        $post = (array) $this->getRequest()->getPost();

        if (!empty($post)) {
            // Retrieve your form data
            $firstname   = $post['firstname'];
            $lastname    = $post['lastname'];
            $email       = $post['email'];
          
            // Doing-something with...

            // Display the succes form validation message
            $this->messageManager->addSuccessMessage('Booking done !');

            // Redirect to your form page (or anywhere you want...)
            $resultRedirect = $this->resultFactory->create(ResultFactory::TYPE_REDIRECT);
            $resultRedirect->setUrl('/companymodule/index/custom');

            return $resultRedirect;
        }
  
    }
}

Best Answer

Related Solutions

Get Add to Cart URL in Custom Template File – Magento 2

Magento 2.2.3 – How to Create Custom Form

Related Topic