Magento 2 Add new field to Magento_User admin form

For adding image field, you can try using plugin and always try to avoid overwrite whole class.

Vendor/Module/etc/adminhtml/di.xml


<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\User\Block\User\Edit\Tab\Main">
        <plugin name="sr_stackexchange_user_form" type="Vendor\Module\Plugin\Block\Adminhtml\User\Edit\Tab\Main" sortOrder="1"/>
    </type>
</config>

Vendor/Module/Plugin/Block/Adminhtml/User/Edit/Tab/Main.php


namespace Vendor\Module\Plugin\Block\Adminhtml\User\Edit\Tab;

class Main
{
    /**
     * Get form HTML
     *
     * @return string
     */
    public function aroundGetFormHtml(
        \Magento\User\Block\User\Edit\Tab\Main $subject,
        \Closure $proceed
    )
    {
        $form = $subject->getForm();
        if (is_object($form)) {
            $fieldset = $form->addFieldset('admin_user_image', ['legend' => __('User Image')]);
            $fieldset->addField(
                'user_image',
                'image',
                [
                    'name' => 'user_image',
                    'label' => __('Image'),
                    'id' => 'user_image',
                    'title' => __('Image'),
                    'required' => false,
                    'note' => 'Allow image type: jpg, jpeg, png'
                ]
            );

            $subject->setForm($form);
        }

        return $proceed();
    }
}

Clear cache.


Replacing the statement

return parent::_prepareForm();

with this

return \Magento\Backend\Block\Widget\Form\Generic::_prepareForm();

worked for me. Here is the complete code. Adding the field "Accessible Store" as follow.

<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */

// @codingStandardsIgnoreFile

namespace [vendor]\[module]\Block\User\Edit\Tab;

use Magento\Framework\App\ObjectManager;
use Magento\Framework\Locale\OptionInterface;

/**
 * Cms page edit form main tab
 *
 * @SuppressWarnings(PHPMD.DepthOfInheritance)
 */
class Main extends \Magento\User\Block\User\Edit\Tab\Main
{

    /**
     * @param \Magento\Backend\Block\Template\Context $context
     * @param \Magento\Framework\Registry $registry
     * @param \Magento\Framework\Data\FormFactory $formFactory
     * @param \Magento\Backend\Model\Auth\Session $authSession
     * @param \Magento\Framework\Locale\ListsInterface $localeLists
     * @param array $data
     * @param OptionInterface $deployedLocales Operates with deployed locales.
     */

    public function __construct(
        \Magento\Backend\Block\Template\Context $context,
        \Magento\Framework\Registry $registry,
        \Magento\Framework\Data\FormFactory $formFactory,
        \Magento\Backend\Model\Auth\Session $authSession,
        \Magento\Framework\Locale\ListsInterface $localeLists,
        array $data = [],
        OptionInterface $deployedLocales = null
    ) {
        $this->deployedLocales = $deployedLocales
            ?: ObjectManager::getInstance()->get(OptionInterface::class);
        parent::__construct($context, $registry, $formFactory, $authSession, $localeLists, $data, $this->deployedLocales);
    }

    /**
     * Prepare form fields
     *
     * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
     * @return \Magento\Backend\Block\Widget\Form
     */
    protected function _prepareForm()
    {
        //die('test');
        /** @var $model \Magento\User\Model\User */
        $model = $this->_coreRegistry->registry('permissions_user');

        /** @var \Magento\Framework\Data\Form $form */
        $form = $this->_formFactory->create();
        $form->setHtmlIdPrefix('user_');

        $baseFieldset = $form->addFieldset('base_fieldset', ['legend' => __('Account Information')]);

        if ($model->getUserId()) {
            $baseFieldset->addField('user_id', 'hidden', ['name' => 'user_id']);
        } else {
            if (!$model->hasData('is_active')) {
                $model->setIsActive(1);
            }
        }

        $baseFieldset->addField(
            'username',
            'text',
            [
                'name' => 'username',
                'label' => __('User Name'),
                'id' => 'username',
                'title' => __('User Name'),
                'required' => true
            ]
        );

        $baseFieldset->addField(
            'firstname',
            'text',
            [
                'name' => 'firstname',
                'label' => __('First Name'),
                'id' => 'firstname',
                'title' => __('First Name'),
                'required' => true
            ]
        );

        $baseFieldset->addField(
            'lastname',
            'text',
            [
                'name' => 'lastname',
                'label' => __('Last Name'),
                'id' => 'lastname',
                'title' => __('Last Name'),
                'required' => true
            ]
        );

        // Adding new field for Scope Access
        $baseFieldset->addField(
            'accessible_store',
            'select',
            [
                'name' => 'accessible_store',
                'label' => __('Accessible Store'),
                'id' => 'accessible_store',
                'title' => __('Accessible Store'),
                'class' => 'input-select',
                'options' => ['3' => __('Global Store'), 
                              '1' => __('Malaysia Pavillion'), 
                              '2' => __('Thailand Pavilion')],
                'required' => true
            ]
        );

        $baseFieldset->addField(
            'email',
            'text',
            [
                'name' => 'email',
                'label' => __('Email'),
                'id' => 'customer_email',
                'title' => __('User Email'),
                'class' => 'required-entry validate-email',
                'required' => true
            ]
        );

        $isNewObject = $model->isObjectNew();
        if ($isNewObject) {
            $passwordLabel = __('Password');
        } else {
            $passwordLabel = __('New Password');
        }
        $confirmationLabel = __('Password Confirmation');
        $this->_addPasswordFields($baseFieldset, $passwordLabel, $confirmationLabel, $isNewObject);

        $baseFieldset->addField(
            'interface_locale',
            'select',
            [
                'name' => 'interface_locale',
                'label' => __('Interface Locale'),
                'title' => __('Interface Locale'),
                'values' => $this->deployedLocales->getOptionLocales(),
                'class' => 'select'
            ]
        );

        if ($this->_authSession->getUser()->getId() != $model->getUserId()) {
            $baseFieldset->addField(
                'is_active',
                'select',
                [
                    'name' => 'is_active',
                    'label' => __('This account is'),
                    'id' => 'is_active',
                    'title' => __('Account Status'),
                    'class' => 'input-select',
                    'options' => ['1' => __('Active'), '0' => __('Inactive')]
                ]
            );
        }

        $baseFieldset->addField('user_roles', 'hidden', ['name' => 'user_roles', 'id' => '_user_roles']);

        $currentUserVerificationFieldset = $form->addFieldset(
            'current_user_verification_fieldset',
            ['legend' => __('Current User Identity Verification')]
        );
        $currentUserVerificationFieldset->addField(
            self::CURRENT_USER_PASSWORD_FIELD,
            'password',
            [
                'name' => self::CURRENT_USER_PASSWORD_FIELD,
                'label' => __('Your Password'),
                'id' => self::CURRENT_USER_PASSWORD_FIELD,
                'title' => __('Your Password'),
                'class' => 'input-text validate-current-password required-entry',
                'required' => true
            ]
        );

        $data = $model->getData();
        unset($data['password']);
        unset($data[self::CURRENT_USER_PASSWORD_FIELD]);
        $form->setValues($data);

        $this->setForm($form);

        //return parent::_prepareForm();
        return \Magento\Backend\Block\Widget\Form\Generic::_prepareForm();
    }

}

And thanks @Rob for sharing the clue where to start with.


Just to add another working example, I've succeeded in overwriting the Website admin page. I was trying to add a URL field to the website edit page.

I did exactly what it's said in the validated answer but I didn't add a new fieldset. Instead, I've completed the existing one, using it's id defined in the Website class.

Besides, I'v used the inheritance to retrieve the website model and retrieve the current value from database to put it inside the form (It's copied from the Magento Website class too).

In prerequisite, it's needed to add the column url in the store_website table of the Magento database.

Here is the working result (tested in Magento 2.1) :

<?php

namespace Vendor\Store\Plugin\Block\System\Store\Edit\Form;

class Website extends \Magento\Backend\Block\System\Store\Edit\Form\Website
{
    /**
     * Get form HTML
     *
     * @return string
     */
    public function aroundGetFormHtml(
        \Magento\Backend\Block\System\Store\Edit\Form\Website $subject,
        \Closure $proceed
    )
    {
        $form = $subject->getForm();
        if (is_object($form)) {

            // From \Magento\Backend\Block\System\Store\Edit\Form\Website :
            $websiteModel = $this->_coreRegistry->registry('store_data');
            $postData = $this->_coreRegistry->registry('store_post_data');
            if ($postData) {
                $websiteModel->setData($postData['website']);
            }

            // Fieldset name from \Magento\Backend\Block\System\Store\Edit\Form\Website
            $fieldset = $form->getElement('website_fieldset');
            $fieldset->addField(
                'website_url',
                'text',
                [
                    'name' => 'website[url]', // From \Magento\Backend\Block\System\Store\Edit\Form\Website
                    'label' => __('Website URL'),
                    'value' => $websiteModel->getData('url'),
                    'title' => __('Website URL'),
                    'required' => false
                ]
            );

            $subject->setForm($form);
        }

        return $proceed();
    }
}

And the di.xml file in Vendor/Store/etc/adminhtml directory (nothing new here from the validated answer) :

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Backend\Block\System\Store\Edit\Form\Website">
        <plugin name="admin_website_plugin" type="Vendor\Store\Plugin\Block\System\Store\Edit\Form\Website" sortOrder="1"/>
    </type>
</config>