Magento2 : How to create group of fileds on admin config

Question

I am trying to create a group of options please see attached image enter image description here

I have tried by adding single field but it's creating separate filed, i need similar solution either in magento1 or magento2.

• Amit Bera: Yes, it can be possiable.
• Arunendra: Could please help me ? is there any source for the same ?

Answer 1

To achieve this requirement, you have to create

1. frontend_model

This is a block which will render the field view and it will extend Magento\Config\Block\System\Config\Form\Field\FieldArray\AbstractFieldArray

Example: Devamitbera\Stackexchange\Block\Adminhtml\Form\Field\Groupcodes.

2. backend_model

This is a model which saves that field value using JSON serialized and during this field value load using _afterLoad function, it converts field value to the array and during save using beforeSave() it converts the field to array from JSON.

Example:

<?php
namespace Devamitbera\Stackexchange\Model\System\Config\Backend;
/**
 * Backend for serialized array data
 */
class Groupcodes extends \Magento\Framework\App\Config\Value
{
 protected $ConvertverClass = null;
 /**
 * @param \Magento\Framework\Model\Context $context
 * @param \Magento\Framework\Registry $registry
 * @param \Magento\Framework\App\Config\ScopeConfigInterface $config
 * @param \Magento\Framework\App\Cache\TypeListInterface $cacheTypeList
 * @param \Magento\CatalogInventory\Helper\Minsaleqty $catalogInventoryMinsaleqty
 * @param \Magento\Framework\Model\ResourceModel\AbstractResource $resource
 * @param \Magento\Framework\Data\Collection\AbstractDb $resourceCollection
 * @param array $data
 */
 public function __construct(
 \Magento\Framework\Model\Context $context,
 \Magento\Framework\Registry $registry,
 \Magento\Framework\App\Config\ScopeConfigInterface $config,
 \Magento\Framework\App\Cache\TypeListInterface $cacheTypeList,
 \ConvertverClass $ConvertverClass,
 \Magento\Framework\Model\ResourceModel\AbstractResource $resource = null,
 \Magento\Framework\Data\Collection\AbstractDb $resourceCollection = null,
 array $data = []
 ) {
 $this->ConvertverClass = $ConvertverClass;
 parent::__construct($context, $registry, $config, $cacheTypeList, $resource, $resourceCollection, $data);
 }
 /**
 * Process data after load
 *
 * @return void
 */
 protected function _afterLoad()
 {
 $value = $this->getValue();
 // This is class which Convert json to array
 $value = $this->ConvertverClass->functiontoConVertArrayFromSJson($value);
 $this->setValue($value);
 }
 /**
 * Prepare data before save
 *
 * @return void
 */
 public function beforeSave()
 {
 $value = $this->getValue();
 // This is class which Convert json to array
 $value = $this->ConvertverClass->functiontoConVertJsonFromArray($value);
 $this->setValue($value);
 }
}

At this case, you can use the following Minimum Qty Allowed in Shopping Cart which exits at admin>Store>Configuration>Catalog>Inventory> Product Stock Options>Minimum Qty Allowed in Shopping Cart

Reference:

system.xml : system.xml

Frontend Model class Magento\CatalogInventory\Block\Adminhtml\Form\Field\Minsaleqty;

Model Class Magento\CatalogInventory\Model\System\Config\Backend\Minsaleqty