Php, Wordpress, CodeIgniter, Magento: 2019

Hello.

Here I explain CRUD for backend side in magento 2. CRUD module for admin with UI Component

Create this type of files and folders structure.

First create registration.php and composer.json

Chirag->Events->registration.php
<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/
\Magento\Framework\Component\ComponentRegistrar::register(
    \Magento\Framework\Component\ComponentRegistrar::MODULE,
    'Chirag_Events',
    __DIR__
);

Chirag->Events->composer.json
{
    "name": "chirag/module-events",
    "description": "",
    "type": "magento2-module",
    "license": "proprietary",
    "authors": [
        {
            "email": "chirag@czargroup.net",
            "name": "Czargroup"
        }
    ],
    "minimum-stability": "dev",
    "require": {},
    "autoload": {
        "psr-4": {
            "Chirag\\Events\\": ""
        },
        "files": [
            "registration.php"
        ]
    }
}

Chirag->Events->etc->module.xml

<?xml version="1.0"?>

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <module name="Chirag_Events" setup_version="1.0.1" />
</config>

Chirag->Events->etc->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">
    <virtualType name="ChiragEventsGridFilterPool" type="Magento\Framework\View\Element\UiComponent\DataProvider\FilterPool">
        <arguments>
            <argument name="appliers" xsi:type="array">
                <item name="regular" xsi:type="object">Magento\Framework\View\Element\UiComponent\DataProvider\RegularFilter</item>
                <item name="fulltext" xsi:type="object">Magento\Framework\View\Element\UiComponent\DataProvider\FulltextFilter</item>
            </argument>
        </arguments>
    </virtualType>
    <virtualType name="ChiragEventsGridDataProvider" type="Magento\Framework\View\Element\UiComponent\DataProvider\DataProvider">
        <arguments>
            <argument name="collection" xsi:type="object" shared="false">Chirag\Events\Model\ResourceModel\Events\Collection</argument>
            <argument name="filterPool" xsi:type="object" shared="false">ChiragEventsGridFilterPool</argument>
        </arguments>
    </virtualType>
    <virtualType name="Chirag\Events\Model\ResourceModel\Events\Grid\Collection" type="Magento\Framework\View\Element\UiComponent\DataProvider\SearchResult">
        <arguments>
            <argument name="mainTable" xsi:type="string">chirag_events_table</argument>
            <argument name="resourceModel" xsi:type="string">Chirag\Events\Model\ResourceModel\Events</argument>
        </arguments>
    </virtualType>
    <type name="Magento\Framework\View\Element\UiComponent\DataProvider\CollectionFactory">
        <arguments>
            <argument name="collections" xsi:type="array">
                <item name="chirag_events_index_listing_data_source" xsi:type="string">Chirag\Events\Model\ResourceModel\Events\Grid\Collection</item>
            </argument>
        </arguments>
    </type>
</config>

Chirag->Events->etc->adminhtml->menu.xml

<?xml version="1.0"?>

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../Backend/etc/menu.xsd">
    <menu>
        <add id="chirag_events::core" title="Events Create" module="Chirag_Events" sortOrder="90" resource="Chirag_Events::sample"/>
        <add id="chirag_events::test" title="Display All Events" module="Chirag_Events" sortOrder="10" parent="chirag_events::core" action="chirag_events/items/" resource="Chirag_Events::items"/>
    </menu>
</config>

Chirag->Events->etc->adminhtml->routes.xml
<?xml version="1.0"?>

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../../lib/internal/Magento/Framework/App/etc/routes.xsd">
    <router id="admin">
        <route id="chirag_events" frontName="chirag_events">
            <module name="Chirag_Events" />
        </route>
    </router>
</config>

Now create setup files.
Chirag->Events->Setup->InstallSchema.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Setup;

use Magento\Framework\Setup\InstallSchemaInterface;
use Magento\Framework\Setup\ModuleContextInterface;
use Magento\Framework\Setup\SchemaSetupInterface;

/**
* @codeCoverageIgnore
*/
class InstallSchema implements InstallSchemaInterface
{
    /**
     * {@inheritdoc}
     * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
     */
    public function install(SchemaSetupInterface $setup, ModuleContextInterface $context)
    {
        $installer = $setup;
        $installer->startSetup();

        /**
        * Creating table chirag_events_table
        */
        $table = $installer->getConnection()->newTable(
            $installer->getTable('chirag_events_table')
        )->addColumn(
            'entity_id',
            \Magento\Framework\DB\Ddl\Table::TYPE_INTEGER,
            null,
            ['identity' => true, 'unsigned' => true, 'nullable' => false, 'primary' => true],
            'Chirag Events Id'
        )->addColumn(
            'reason',
            \Magento\Framework\DB\Ddl\Table::TYPE_TEXT,
            255,
            ['nullable' => false],
            'Reason'
        )->addColumn(
            'date',
            \Magento\Framework\DB\Ddl\Table::TYPE_DATETIME,
            null,
            ['nullable' => false],
            'Choose Date'
        )->addColumn(
            'status',
            \Magento\Framework\DB\Ddl\Table::TYPE_INTEGER,
            11,
            ['nullable' => true,'default' => 1],
            'Status'
        )->addColumn(
            'created_at',
            \Magento\Framework\DB\Ddl\Table::TYPE_TIMESTAMP,
            null,
            ['nullable' => false],
            'Created At'
        )->addColumn(
            'updated_at',
            \Magento\Framework\DB\Ddl\Table::TYPE_TIMESTAMP,
            null,
            ['nullable' => false],
            'Updated At'
        )->setComment(
            'Chirag Events Table'
        );
        $installer->getConnection()->createTable($table);
        $installer->endSetup();
    }
}

Chirag->Events->Setup->UpgradeSchema.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Setup;

use Magento\Framework\Setup\UpgradeSchemaInterface;
use Magento\Framework\Setup\ModuleContextInterface;
use Magento\Framework\Setup\SchemaSetupInterface;

/**
* @codeCoverageIgnore
*/
class UpgradeSchema implements UpgradeSchemaInterface
{
    /**
     * {@inheritdoc}
     * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
     */
    public function upgrade(SchemaSetupInterface $setup, ModuleContextInterface $context)
    {
        $installer = $setup;
        $installer->startSetup();

        /**
        * Creating table chirag_events_table
        */
        if (version_compare($context->getVersion(), '1.0.1') < 0) {
            $table = $installer->getConnection()->newTable(
                $installer->getTable('chirag_events_table')
            )->addColumn(
                'entity_id',
                \Magento\Framework\DB\Ddl\Table::TYPE_INTEGER,
                null,
                ['identity' => true, 'unsigned' => true, 'nullable' => false, 'primary' => true],
                'Chirag Events Id'
            )->addColumn(
                'reason',
                \Magento\Framework\DB\Ddl\Table::TYPE_TEXT,
                255,
                ['nullable' => false],
                'Reason'
            )->addColumn(
                'date',
                \Magento\Framework\DB\Ddl\Table::TYPE_DATETIME,
                null,
                ['nullable' => false],
                'Choose Date'
            )->addColumn(
                'status',
                \Magento\Framework\DB\Ddl\Table::TYPE_INTEGER,
                11,
                ['nullable' => true,'default' => 1],
                'Status'
            )->addColumn(
                'created_at',
                \Magento\Framework\DB\Ddl\Table::TYPE_TIMESTAMP,
                null,
                ['nullable' => false],
                'Created At'
            )->addColumn(
                'updated_at',
                \Magento\Framework\DB\Ddl\Table::TYPE_TIMESTAMP,
                null,
                ['nullable' => false],
                'Updated At'
            )->setComment(
                'Chirag Events Table'
            );
            $installer->getConnection()->createTable($table);
        }
        $installer->endSetup();
    }
}

Chirag->Events->Model->Events.php
<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Model;

use Magento\Framework\Model\AbstractModel;

class Events extends AbstractModel
{
    /**
     * Define resource model
     */
    protected function _construct()
    {
        $this->_init('Chirag\Events\Model\ResourceModel\Events');
    }
}

Chirag->Events->Model->Source->Status.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Model\Source;

use Magento\Eav\Model\Entity\Attribute\Source\AbstractSource;
use Magento\Eav\Model\Entity\Attribute\Source\SourceInterface;
use Magento\Framework\Data\OptionSourceInterface;

/**
* Item status functionality model
*/
class Status extends AbstractSource implements SourceInterface, OptionSourceInterface
{
    /**#@+
     * Item Status values
     */
    const STATUS_ENABLED = 1;

    const STATUS_DISABLED = 0;

    /**#@-*/

    /**
     * Retrieve option array
     *
     * @return string[]
     */
    public static function getOptionArray()
    {
        return [self::STATUS_ENABLED => __('Enabled'), self::STATUS_DISABLED => __('Disabled')];
    }

    /**
     * Retrieve option array with empty value
     *
     * @return string[]
     */
    public function getAllOptions()
    {
        $result = [];

        foreach (self::getOptionArray() as $index => $value) {
            $result[] = ['value' => $index, 'label' => $value];
        }

        return $result;
    }
}

Chirag->Events->Model->ResourceModel->Events.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Model\ResourceModel;

class Events extends \Magento\Framework\Model\ResourceModel\Db\AbstractDb
{
    /**
     * Define main table
     */
    protected function _construct()
    {
        $this->_init('chirag_events_table', 'entity_id');   //here "chirag_events_table" is table name and "entity_id" is the primary key of custom table
    }
}

Chirag->Events->Model->ResourceModel->Events->Collection.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Model\ResourceModel\Events;

class Collection extends \Magento\Framework\Model\ResourceModel\Db\Collection\AbstractCollection
{
    protected $_idFieldName = 'entity_id';
    /**
     * Define model & resource model
     */
    protected function _construct()
    {
        $this->_init(
            'Chirag\Events\Model\Events',
            'Chirag\Events\Model\ResourceModel\Events'
        );
    }
}

Chirag->Events->Controller->Adminhtml->Items.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Controller\Adminhtml;

use Magento\Framework\App\Filesystem\DirectoryList;
use Magento\MediaStorage\Model\File\UploaderFactory;
use Magento\Framework\Image\AdapterFactory;
use Magento\Framework\Filesystem;
/**
* Items controller
*/
abstract class Items extends \Magento\Backend\App\Action
{
    /**
     * Core registry
     *
     * @var \Magento\Framework\Registry
     */
    protected $_coreRegistry;

    /**
     * @var \Magento\Backend\Model\View\Result\ForwardFactory
     */
    protected $resultForwardFactory;

    /**
     * @var \Magento\Framework\View\Result\PageFactory
     */
    protected $resultPageFactory;

    protected $uploaderFactory;
    protected $adapterFactory;
    protected $filesystem;

    /**
     * Initialize Group Controller
     *
     * @param \Magento\Backend\App\Action\Context $context
     * @param \Magento\Framework\Registry $coreRegistry
     * @param \Magento\Backend\Model\View\Result\ForwardFactory $resultForwardFactory
     * @param \Magento\Framework\View\Result\PageFactory $resultPageFactory
     */
    public function __construct(
        \Magento\Backend\App\Action\Context $context,
        \Magento\Framework\Registry $coreRegistry,
        \Magento\Backend\Model\View\Result\ForwardFactory $resultForwardFactory,
        \Magento\Framework\View\Result\PageFactory $resultPageFactory,
        DirectoryList $directoryList,
        UploaderFactory $uploaderFactory,
        AdapterFactory $adapterFactory,
        Filesystem $filesystem,
        \Magento\Framework\Filesystem\Driver\File $file
    ) {
        $this->_coreRegistry = $coreRegistry;
        parent::__construct($context);
        $this->resultForwardFactory = $resultForwardFactory;
        $this->resultPageFactory = $resultPageFactory;
        $this->directoryList = $directoryList;
        $this->uploaderFactory = $uploaderFactory;
        $this->adapterFactory = $adapterFactory;
        $this->filesystem = $filesystem;
        $this->_file = $file;
    }

    /**
     * Initiate action
     *
     * @return this
     */
    protected function _initAction()
    {
        $this->_view->loadLayout();
        $this->_setActiveMenu('Chirag_Events::items')->_addBreadcrumb(__('Items'), __('Items'));
        return $this;
    }

    /**
     * Determine if authorized to perform group actions.
     *
     * @return bool
     */
    protected function _isAllowed()
    {
        return $this->_authorization->isAllowed('Chirag_Events::items');
    }
}

Chirag->Events->Controller->Adminhtml->Items->Index.php
<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Controller\Adminhtml\Items;

class Index extends \Chirag\Events\Controller\Adminhtml\Items
{
    /**
     * Items list.
     *
     * @return \Magento\Backend\Model\View\Result\Page
     */
    public function execute()
    {
        /** @var \Magento\Backend\Model\View\Result\Page $resultPage */
        $resultPage = $this->resultPageFactory->create();
        $resultPage->setActiveMenu('Chirag_Events::test');
        $resultPage->getConfig()->getTitle()->prepend(__('Create Event Admin Page'));
        $resultPage->addBreadcrumb(__('Manage'), __('Manage'));
        $resultPage->addBreadcrumb(__('Date'), __('Date'));
        return $resultPage;
    }
}

Chirag->Events->Controller->Adminhtml->Items->NewAction.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Controller\Adminhtml\Items;

class NewAction extends \Chirag\Events\Controller\Adminhtml\Items
{

    public function execute()
    {
        $this->_forward('edit');
    }
}

Chirag->Events->Controller->Adminhtml->Items->Edit.php
<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Controller\Adminhtml\Items;

class Edit extends \Chirag\Events\Controller\Adminhtml\Items
{

    public function execute()
    {
        $id = $this->getRequest()->getParam('id');

        $model = $this->_objectManager->create('Chirag\Events\Model\Events');

        if ($id) {
            $model->load($id);
            if (!$model->getId()) {
                $this->messageManager->addError(__('This event no longer exists.'));
                $this->_redirect('chirag_events/*');
                return;
            }
        }
        // set entered data if was error when we do save
        $data = $this->_objectManager->get('Magento\Backend\Model\Session')->getPageData(true);
        if (!empty($data)) {
            $model->addData($data);
        }
        $this->_coreRegistry->register('current_chirag_events_items', $model);
        $this->_initAction();
        if ($model->getId()) {
            $title = __('Edit Event');
        } else {
            $title = __('New Event Create Form');
        }
        $this->_view->getPage()->getConfig()->getTitle()->prepend($title);
        $this->_view->getLayout()->getBlock('items_items_edit');
        $this->_view->renderLayout();
    }
}

Chirag->Events->Controller->Adminhtml->Items->Save.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Controller\Adminhtml\Items;

class Save extends \Chirag\Events\Controller\Adminhtml\Items
{
    public function execute()
    {
        if ($this->getRequest()->getPostValue()) {
            try {
                $model = $this->_objectManager->create('Chirag\Events\Model\Events');
                $data = $this->getRequest()->getPostValue();
                if(isset($_FILES['image']['name']) && $_FILES['image']['name'] != '') {
                    try{
                        $uploaderFactory = $this->uploaderFactory->create(['fileId' => 'image']);
                        $uploaderFactory->setAllowedExtensions(['jpg', 'jpeg', 'gif', 'png']);
                        $imageAdapter = $this->adapterFactory->create();
                        $uploaderFactory->addValidateCallback('custom_image_upload',$imageAdapter,'validateUploadFile');
                        $uploaderFactory->setAllowRenameFiles(true);
                        $uploaderFactory->setFilesDispersion(true);
                        $mediaDirectory = $this->filesystem->getDirectoryRead($this->directoryList::MEDIA);
                        $destinationPath = $mediaDirectory->getAbsolutePath('chirag/events');
                        $result = $uploaderFactory->save($destinationPath);
                        if (!$result) {
                            throw new LocalizedException(
                                __('File cannot be saved to path: $1', $destinationPath)
                            );
                        }

                        $imagePath = 'chirag/events'.$result['file'];
                        $data['image'] = $imagePath;
                    } catch (\Exception $e) {
                    }
                }
                if(isset($data['image']['delete']) && $data['image']['delete'] == 1) {
                    $mediaDirectory = $this->filesystem->getDirectoryRead($this->directoryList::MEDIA)->getAbsolutePath();
                    $file = $data['image']['value'];
                    $imgPath = $mediaDirectory.$file;
                    if ($this->_file->isExists($imgPath)) {
                        $this->_file->deleteFile($imgPath);
                    }
                    $data['image'] = NULL;
                }
                if (isset($data['image']['value'])){
                    $data['image'] = $data['image']['value'];
                }
                $inputFilter = new \Zend_Filter_Input(
                    [],
                    [],
                    $data
                );
                $data = $inputFilter->getUnescaped();
                $id = $this->getRequest()->getParam('id');
                if ($id) {
                    $model->load($id);
                    if ($id != $model->getId()) {
                        throw new \Magento\Framework\Exception\LocalizedException(__('The wrong item is specified.'));
                    }
                }

                $timezone = $this->_objectManager->create('Magento\Framework\Stdlib\DateTime\TimezoneInterface');
                $fromTz = $timezone->getConfigTimezone();
                $toTz = $timezone->getDefaultTimezone();
                $date = new \DateTime($data['date'], new \DateTimeZone($fromTz));
                $date->setTimezone(new \DateTimeZone($toTz));
                $data['date'] = $date->format('m/d/Y H:i:s');

                $timezone = $this->_objectManager->create('Magento\Framework\Stdlib\DateTime\DateTime');
                $data['updated_at'] = $timezone->gmtDate();

                $model->setData($data);
                $session = $this->_objectManager->get('Magento\Backend\Model\Session');
                $session->setPageData($model->getData());
                $model->save();
                $this->messageManager->addSuccess(__('You saved the event.'));
                $session->setPageData(false);
                if ($this->getRequest()->getParam('back')) {
                    $this->_redirect('chirag_events/*/edit', ['id' => $model->getId()]);
                    return;
                }
                $this->_redirect('chirag_events/*/');
                return;
            } catch (\Magento\Framework\Exception\LocalizedException $e) {
                $this->messageManager->addError($e->getMessage());
                $id = (int)$this->getRequest()->getParam('id');
                if (!empty($id)) {
                    $this->_redirect('chirag_events/*/edit', ['id' => $id]);
                } else {
                    $this->_redirect('chirag_events/*/new');
                }
                return;
            } catch (\Exception $e) {
                $this->messageManager->addError(
                    __('Something went wrong while saving the event data. Please review the error log.')
                );
                $this->_objectManager->get('Psr\Log\LoggerInterface')->critical($e);
                $this->_objectManager->get('Magento\Backend\Model\Session')->setPageData($data);
                $this->_redirect('chirag_events/*/edit', ['id' => $this->getRequest()->getParam('id')]);
                return;
            }
        }
        $this->_redirect('chirag_events/*/');
    }
}

Chirag->Events->Controller->Adminhtml->Items->MassStatus.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Controller\Adminhtml\Items;

use Magento\Backend\App\Action\Context;
use Magento\Framework\View\Result\PageFactory;
use Magento\Framework\Controller\ResultFactory;
use Magento\Ui\Component\MassAction\Filter;
use Chirag\Events\Model\ResourceModel\Events\CollectionFactory;

class MassStatus extends \Magento\Backend\App\Action
{
    /**
     * @var Filter
     */
    protected $filter;

    /**
     * @var CollectionFactory
     */
    protected $collectionFactory;

    /**
     * @param Context $context
     * @param Filter $filter
     * @param CollectionFactory $collectionFactory
     */
    public function __construct(Context $context, Filter $filter, CollectionFactory $collectionFactory)
    {
        $this->filter = $filter;
        $this->collectionFactory = $collectionFactory;
        parent::__construct($context);
    }

    /**
     * Execute action
     *
     * @return \Magento\Backend\Model\View\Result\Redirect
     * @throws \Magento\Framework\Exception\LocalizedException|\Exception
     */
    public function execute()
    {
        $collection = $this->filter->getCollection($this->collectionFactory->create());
        $collectionSize = $collection->getSize();

        foreach ($collection as $record) {
            $record->setStatus($this->getRequest()->getParam('status'))->save();
        }
        if($this->getRequest()->getParam('status') == 1){$status = 'enabled';}else{$status = 'disabled';}
        $this->messageManager->addSuccess(__('A total of %1 record(s) have been '.$status, $collectionSize));

        /** @var \Magento\Backend\Model\View\Result\Redirect $resultRedirect */
        $resultRedirect = $this->resultFactory->create(ResultFactory::TYPE_REDIRECT);
        return $resultRedirect->setPath('*/*/');
    }
}

Chirag->Events->Controller->Adminhtml->Items->Delete.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Controller\Adminhtml\Items;

class Delete extends \Chirag\Events\Controller\Adminhtml\Items
{

    public function execute()
    {
        $id = $this->getRequest()->getParam('id');
        if ($id) {
            try {
                $model = $this->_objectManager->create('Chirag\Events\Model\Events');
                $model->load($id);
                $model->delete();
                $this->messageManager->addSuccess(__('You deleted the event.'));
                $this->_redirect('chirag_events/*/');
                return;
            } catch (\Magento\Framework\Exception\LocalizedException $e) {
                $this->messageManager->addError($e->getMessage());
            } catch (\Exception $e) {
                $this->messageManager->addError(
                    __('We can\'t delete event right now. Please review the log and try again.')
                );
                $this->_objectManager->get('Psr\Log\LoggerInterface')->critical($e);
                $this->_redirect('chirag_events/*/edit', ['id' => $this->getRequest()->getParam('id')]);
                return;
            }
        }
        $this->messageManager->addError(__('We can\'t find a event to delete.'));
        $this->_redirect('chirag_events/*/');
    }
}

Chirag->Events->Controller->Adminhtml->Items->MassDelete.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Controller\Adminhtml\Items;

use Magento\Backend\App\Action\Context;
use Magento\Framework\View\Result\PageFactory;
use Magento\Framework\Controller\ResultFactory;
use Magento\Ui\Component\MassAction\Filter;
use Chirag\Events\Model\ResourceModel\Events\CollectionFactory;

class MassDelete extends \Magento\Backend\App\Action
{
    /**
     * @var Filter
     */
    protected $filter;

    /**
     * @var CollectionFactory
     */
    protected $collectionFactory;

    /**
     * @param Context $context
     * @param Filter $filter
     * @param CollectionFactory $collectionFactory
     */
    public function __construct(Context $context, Filter $filter, CollectionFactory $collectionFactory)
    {
        $this->filter = $filter;
        $this->collectionFactory = $collectionFactory;
        parent::__construct($context);
    }

    /**
     * Execute action
     *
     * @return \Magento\Backend\Model\View\Result\Redirect
     * @throws \Magento\Framework\Exception\LocalizedException|\Exception
     */
    public function execute()
    {
        $collection = $this->filter->getCollection($this->collectionFactory->create());
        $collectionSize = $collection->getSize();

        foreach ($collection as $record) {
            $record->delete();
        }

        $this->messageManager->addSuccess(__('A total of %1 record(s) have been deleted.', $collectionSize));

        /** @var \Magento\Backend\Model\View\Result\Redirect $resultRedirect */
        $resultRedirect = $this->resultFactory->create(ResultFactory::TYPE_REDIRECT);
        return $resultRedirect->setPath('*/*/');
    }
}

Chirag->Events->Block->Adminhtml->Items.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Block\Adminhtml;

class Items extends \Magento\Backend\Block\Widget\Grid\Container
{
    /**
     * Constructor
     *
     * @return void
     */
    protected function _construct()
    {
        $this->_controller = 'items';
        $this->_headerText = __('Items');
        $this->_addButtonLabel = __('Add New Item1');
        parent::_construct();
    }
}

Chirag->Events->Block->Adminhtml->Items->Edit.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Block\Adminhtml\Items;

class Edit extends \Magento\Backend\Block\Widget\Form\Container
{
    /**
     * Core registry
     *
     * @var \Magento\Framework\Registry
     */
    protected $_coreRegistry = null;

    /**
     * @param \Magento\Backend\Block\Widget\Context $context
     * @param \Magento\Framework\Registry $registry
     * @param array $data
     */
    public function __construct(
        \Magento\Backend\Block\Widget\Context $context,
        \Magento\Framework\Registry $registry,
        array $data = []
    ) {
        $this->_coreRegistry = $registry;
        parent::__construct($context, $data);
    }

    /**
     * Initialize form
     * Add standard buttons
     * Add "Save and Continue" button
     *
     * @return void
     */
    protected function _construct()
    {
        $this->_objectId = 'id';
        $this->_controller = 'adminhtml_items';
        $this->_blockGroup = 'Chirag_Events';

        parent::_construct();

        $this->buttonList->add(
            'save_and_continue_edit',
            [
                'class' => 'save',
                'label' => __('Save and Continue Edit'),
                'data_attribute' => [
                    'mage-init' => ['button' => ['event' => 'saveAndContinueEdit', 'target' => '#edit_form']],
                ]
            ],
            10
        );
    }

    /**
     * Getter for form header text
     *
     * @return \Magento\Framework\Phrase
     */
    public function getHeaderText()
    {
        $item = $this->_coreRegistry->registry('current_chirag_events_items');
        if ($item->getId()) {
            return __("Edit Event '%1'", $this->escapeHtml($item->getReason()));
        } else {
            return __('New Event');
        }
    }
}

Chirag->Events->Block->Adminhtml->Items->Edit->Form.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Block\Adminhtml\Items\Edit;

class Form extends \Magento\Backend\Block\Widget\Form\Generic
{
    /**
     * Constructor
     *
     * @return void
     */
    protected function _construct()
    {
        parent::_construct();
        $this->setId('events_items_form');
        $this->setTitle(__('Event Information'));
    }

    /**
     * Prepare form before rendering HTML
     *
     * @return $this
     */
    protected function _prepareForm()
    {
        /** @var \Magento\Framework\Data\Form $form */
        $form = $this->_formFactory->create(
            [
                'data' => [
                    'id' => 'edit_form',
                    'action' => $this->getUrl('chirag_events/items/save'),
                    'method' => 'post',
                    'enctype' => 'multipart/form-data'
                ],
            ]
        );
        $form->setUseContainer(true);
        $this->setForm($form);
        return parent::_prepareForm();
    }
}

Chirag->Events->Block->Adminhtml->Items->Edit->Tabs.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Block\Adminhtml\Items\Edit;

class Tabs extends \Magento\Backend\Block\Widget\Tabs
{
    /**
     * Constructor
     *
     * @return void
     */
    protected function _construct()
    {
        parent::_construct();
        $this->setId('chirag_events_items_edit_tabs');
        $this->setDestElementId('edit_form');
        $this->setTitle(__('Event'));
    }
}

   Chirag->Events->Block->Adminhtml->Items->Edit->Tabs->Main.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Block\Adminhtml\Items\Edit\Tab;

use Magento\Backend\Block\Widget\Form\Generic;
use Magento\Backend\Block\Widget\Tab\TabInterface;

class Main extends Generic implements TabInterface
{
    protected $_wysiwygConfig;

    public function __construct(
        \Magento\Backend\Block\Template\Context $context,
        \Magento\Framework\Registry $registry,
        \Magento\Framework\Data\FormFactory $formFactory,
        \Magento\Cms\Model\Wysiwyg\Config $wysiwygConfig,
        array $data = []
    )
    {
        $this->_wysiwygConfig = $wysiwygConfig;
        parent::__construct($context, $registry, $formFactory, $data);
    }

    /**
     * {@inheritdoc}
     */
    public function getTabLabel()
    {
        return __('Event Information');
    }

    /**
     * {@inheritdoc}
     */
    public function getTabTitle()
    {
        return __('Event Information');
    }

    /**
     * {@inheritdoc}
     */
    public function canShowTab()
    {
        return true;
    }

    /**
     * {@inheritdoc}
     */
    public function isHidden()
    {
        return false;
    }

    /**
     * Prepare form before rendering HTML
     *
     * @return $this
     * @SuppressWarnings(PHPMD.NPathComplexity)
     * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
     */
    protected function _prepareForm()
    {
        $model = $this->_coreRegistry->registry('current_chirag_events_items');
        /** @var \Magento\Framework\Data\Form $form */
        $form = $this->_formFactory->create();
        $form->setHtmlIdPrefix('item_');

        $dateFormat = $this->_localeDate->getDateFormat(\IntlDateFormatter::SHORT);
        $timeFormat = $this->_localeDate->getTimeFormat(\IntlDateFormatter::SHORT);

        $fieldset = $form->addFieldset('base_fieldset', ['legend' => __('Event Information')]);
        if ($model->getId()) {
            $fieldset->addField('entity_id', 'hidden', ['name' => 'entity_id']);
        }
        $fieldset->addField(
            'reason',
            'text',
            ['name' => 'reason', 'label' => __('Event Name'), 'title' => __('Event Name'), 'required' => true]
        );
        $fieldset->addField(
            'date',
            'date',
            ['name' => 'date', 'label' => __('Choose Date'), 'title' => __('Choose Date'), 'required' => true, 'date_format' => $dateFormat]
        );
        /* $fieldset->addField(
            'image',
            'image',
            [
                'name' => 'image',
                'label' => __('Image'),
                'title' => __('Image'),
                'required' => false
            ]
        ); */
        /* $fieldset->addField(
            'status',
            'select',
            ['name' => 'status', 'label' => __('Status'), 'title' => __('Status'), 'options'   => [0 => 'Disable', 1 => 'Enable'], 'required' => true]
        ); */
        /* $fieldset->addField(
            'content',
            'editor',
            [
                'name' => 'content',
                'label' => __('Content'),
                'title' => __('Content'),
                'style' => 'height:26em;',
                'required' => true,
                'config'    => $this->_wysiwygConfig->getConfig(),
                'wysiwyg' => true
            ]
        ); */

        $form->setValues($model->getData());
        $this->setForm($form);
        return parent::_prepareForm();
    }
}

Chirag->Events->view->adminhtml->layout->chirag_events_items_edit.xml

<?xml version="1.0"?>

<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="admin-2columns-left" xsi:noNamespaceSchemaLocation="../../../../../../../lib/internal/Magento/Framework/View/Layout/etc/page_configuration.xsd">
    <update handle="editor"/>
    <body>
        <referenceContainer name="left">
            <block class="Chirag\Events\Block\Adminhtml\Items\Edit\Tabs" name="chirag_events_items_edit_tabs">
                <block class="Chirag\Events\Block\Adminhtml\Items\Edit\Tab\Main" name="chirag_events_items_edit_tab_main"/>
                <action method="addTab">
                    <argument name="name" xsi:type="string">main_section</argument>
                    <argument name="block" xsi:type="string">chirag_events_items_edit_tab_main</argument>
                </action>
            </block>
        </referenceContainer>
        <referenceContainer name="content">
            <block class="Chirag\Events\Block\Adminhtml\Items\Edit" name="test_items_edit"/>
        </referenceContainer>
    </body>
</page>

   Chirag->Events->view->adminhtml->layout->chirag_events_items_index.xml

<?xml version="1.0"?>

<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../../../lib/internal/Magento/Framework/View/Layout/etc/page_configuration.xsd">
    <body>
        <referenceContainer name="content">
            <uiComponent name="chirag_events_index_listing"/>
        </referenceContainer>
    </body>
</page>

   Chirag->Events->view->adminhtml->ui_component->chirag_events_index_listing.xml

<?xml version="1.0" encoding="UTF-8"?>

<listing xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Ui:etc/ui_configuration.xsd">
    <argument name="data" xsi:type="array">
        <item name="js_config" xsi:type="array">
            <item name="provider" xsi:type="string">chirag_events_index_listing.chirag_events_index_listing_data_source</item>
            <item name="deps" xsi:type="string">chirag_events_index_listing.chirag_events_index_listing_data_source</item>
        </item>
        <item name="spinner" xsi:type="string">chirag_events_index_listing_columns</item>
        <item name="buttons" xsi:type="array">
            <item name="add" xsi:type="array">
                <item name="name" xsi:type="string">add</item>
                <item name="label" xsi:type="string" translate="true">Create an Event</item>
                <item name="class" xsi:type="string">primary</item>
                <item name="url" xsi:type="string">*/*/new</item>
            </item>
        </item>
    </argument>
    <dataSource name="chirag_events_index_listing_data_source">
        <argument name="dataProvider" xsi:type="configurableObject">
            <argument name="class" xsi:type="string">ChiragEventsGridDataProvider</argument>
            <argument name="name" xsi:type="string">chirag_events_index_listing_data_source</argument>
            <argument name="primaryFieldName" xsi:type="string">entity_id</argument>
            <argument name="requestFieldName" xsi:type="string">entity_id</argument>
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="component" xsi:type="string">Magento_Ui/js/grid/provider</item>
                    <item name="update_url" xsi:type="url" path="mui/index/render"/>
                    <item name="storageConfig" xsi:type="array">
                        <item name="indexField" xsi:type="string">entity_id</item>
                    </item>
                </item>
            </argument>
        </argument>
    </dataSource>
    <container name="listing_top">
        <argument name="data" xsi:type="array">
            <item name="config" xsi:type="array">
                <item name="template" xsi:type="string">ui/grid/toolbar</item>
            </item>
        </argument>
        <bookmark name="bookmarks">
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="storageConfig" xsi:type="array">
                        <item name="namespace" xsi:type="string">chirag_events_index_listing</item>
                    </item>
                </item>
            </argument>
        </bookmark>
        <component name="columns_controls">
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="columnsData" xsi:type="array">
                        <item name="provider" xsi:type="string">chirag_events_index_listing.chirag_events_index_listing.chirag_events_index_listing_columns</item>
                    </item>
                    <item name="component" xsi:type="string">Magento_Ui/js/grid/controls/columns</item>
                    <item name="displayArea" xsi:type="string">dataGridActions</item>
                </item>
            </argument>
        </component>
        <filterSearch name="fulltext">
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="provider" xsi:type="string">chirag_events_index_listing.chirag_events_index_listing_data_source</item>
                    <item name="chipsProvider" xsi:type="string">chirag_events_index_listing.chirag_events_index_listing.listing_top.listing_filters_chips</item>
                    <item name="storageConfig" xsi:type="array">
                        <item name="provider" xsi:type="string">chirag_events_index_listing.chirag_events_index_listing.listing_top.bookmarks</item>
                        <item name="namespace" xsi:type="string">current.search</item>
                    </item>
                </item>
            </argument>
        </filterSearch>
        <filters name="listing_filters">
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="columnsProvider" xsi:type="string">chirag_events_index_listing.chirag_events_index_listing.chirag_events_index_listing_columns</item>
                    <item name="storageConfig" xsi:type="array">
                        <item name="provider" xsi:type="string">chirag_events_index_listing.chirag_events_index_listing.listing_top.bookmarks</item>
                        <item name="namespace" xsi:type="string">current.filters</item>
                    </item>
                    <item name="templates" xsi:type="array">
                        <item name="filters" xsi:type="array">
                            <item name="select" xsi:type="array">
                                <item name="component" xsi:type="string">Magento_Ui/js/form/element/ui-select</item>
                                <item name="template" xsi:type="string">ui/grid/filters/elements/ui-select</item>
                            </item>
                        </item>
                    </item>
                    <item name="childDefaults" xsi:type="array">
                        <item name="provider" xsi:type="string">chirag_events_index_listing.chirag_events_index_listing.listing_top.listing_filters</item>
                        <item name="imports" xsi:type="array">
                            <item name="visible" xsi:type="string">chirag_events_index_listing.chirag_events_index_listing.chirag_events_index_listing_columns.${ $.index }:visible</item>
                        </item>
                    </item>
                </item>
            </argument>
        </filters>
        <massaction name="listing_massaction" component="Magento_Ui/js/grid/tree-massactions">
            <action name="delete">
                <settings>
                    <confirm>
                        <message translate="true">Delete selected items?</message>
                        <title translate="true">Delete items</title>
                    </confirm>
                    <url path="chirag_events/items/massDelete"/>
                    <type>delete</type>
                    <label translate="true">Delete</label>
                </settings>
            </action>
            
        </massaction>
        <paging name="listing_paging">
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="storageConfig" xsi:type="array">
                        <item name="provider" xsi:type="string">chirag_events_index_listing.chirag_events_index_listing.listing_top.bookmarks</item>
                        <item name="namespace" xsi:type="string">current.paging</item>
                    </item>
                    <item name="selectProvider" xsi:type="string">chirag_events_index_listing.chirag_events_index_listing.chirag_events_index_listing_columns.ids</item>
                </item>
            </argument>
        </paging>
    </container>
    <columns name="chirag_events_index_listing_columns">
        <argument name="data" xsi:type="array">
            <item name="config" xsi:type="array">
                <item name="storageConfig" xsi:type="array">
                    <item name="provider" xsi:type="string">chirag_events_index_listing.chirag_events_index_listing.listing_top.bookmarks</item>
                    <item name="namespace" xsi:type="string">current</item>
                </item>
                <item name="childDefaults" xsi:type="array">
                    <item name="fieldAction" xsi:type="array">
                        <item name="provider" xsi:type="string">chirag_events_index_listing.chirag_events_index_listing.testing01_index_columns.actions</item>
                        <item name="target" xsi:type="string">applyAction</item>
                        <item name="params" xsi:type="array">
                            <item name="0" xsi:type="string">edit</item>
                            <item name="1" xsi:type="string">${ $.$data.rowIndex }</item>
                        </item>
                    </item>
                    <item name="storageConfig" xsi:type="array">
                        <item name="provider" xsi:type="string">chirag_events_index_listing.chirag_events_index_listing.listing_top.bookmarks</item>
                        <item name="root" xsi:type="string">columns.${ $.index }</item>
                        <item name="namespace" xsi:type="string">current.${ $.storageConfig.root}</item>
                    </item>
                </item>
            </item>
        </argument>
        <selectionsColumn name="ids">
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="indexField" xsi:type="string">entity_id</item>
                </item>
            </argument>
        </selectionsColumn>
        <column name="entity_id">
            <argument name="data" xsi:type="array">
                <item name="js_config" xsi:type="array">
                    <item name="component" xsi:type="string">Magento_Ui/js/grid/columns/column</item>
                </item>
                <item name="config" xsi:type="array">
                    <item name="indexField" xsi:type="string">entity_id</item>
                    <item name="filter" xsi:type="string">textRange</item>
                    <item name="sorting" xsi:type="string">desc</item>
                    <item name="label" xsi:type="string" translate="true">ID</item>
                </item>
            </argument>
        </column>
        <column name="reason">
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="filter" xsi:type="string">text</item>
                    <item name="label" xsi:type="string" translate="true">Event Name</item>
                    <item name="sortOrder" xsi:type="number">10</item>
                    <item name="bodyTmpl" xsi:type="string">ui/grid/cells/html</item>
                </item>
            </argument>
        </column>
        <column name="date" class="Magento\Ui\Component\Listing\Columns\Date" component="Magento_Ui/js/grid/columns/date">
            <settings>
                <timezone>false</timezone>
                <dateFormat>MMM d, y</dateFormat>
                <filter>dateRange</filter>
                <editor>
                    <editorType>date</editorType>
                </editor>
                <dataType>date</dataType>
                <label translate="true">Choose Date</label>
            </settings>
        </column>
        
        <actionsColumn name="actions" class="Chirag\Events\Ui\Component\Listing\Column\EventsActions">
            <argument name="data" xsi:type="array">
                <item name="config" xsi:type="array">
                    <item name="indexField" xsi:type="string">entity_id</item>
                    <item name="urlEntityParamName" xsi:type="string">id</item>
                </item>
            </argument>
        </actionsColumn>
    </columns>
</listing>

Chirag->Events->Ui->Component->Listing-> Column->EventsActions.php

<?php
/**
* @category   Chirag
* @package    Chirag_Events
* @author     chirag@czargroup.net
* @copyright This file was generated by using Module Creator provided by <developer@czargroup.net>
* @license    http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
*/

namespace Chirag\Events\Ui\Component\Listing\Column;

class EventsActions extends \Magento\Ui\Component\Listing\Columns\Column
{
    const URL_PATH_EDIT = 'chirag_events/items/edit';

    /**
     * URL builder
     *
     * @var \Magento\Framework\UrlInterface
     */
    protected $_urlBuilder;

    /**
     * constructor
     *
     * @param \Magento\Framework\UrlInterface $urlBuilder
     * @param \Magento\Framework\View\Element\UiComponent\ContextInterface $context
     * @param \Magento\Framework\View\Element\UiComponentFactory $uiComponentFactory
     * @param array $components
     * @param array $data
     */
    public function __construct(
        \Magento\Framework\UrlInterface $urlBuilder,
        \Magento\Framework\View\Element\UiComponent\ContextInterface $context,
        \Magento\Framework\View\Element\UiComponentFactory $uiComponentFactory,
        array $components = [],
        array $data = []
    )
    {
        $this->_urlBuilder = $urlBuilder;
        parent::__construct($context, $uiComponentFactory, $components, $data);
    }

    /**
     * Prepare Data Source
     *
     * @param array $dataSource
     * @return array
     */
    public function prepareDataSource(array $dataSource)
    {
        if (isset($dataSource['data']['items'])) {
            foreach ($dataSource['data']['items'] as & $item) {
                $item[$this->getData('name')] = [
                    'edit' => [
                        'href' => $this->_urlBuilder->getUrl(
                            static::URL_PATH_EDIT,
                            [
                                'id' => $item['entity_id']
                            ]
                        ),
                        'label' => __('Edit')
                    ],
                ];
            }
        }
        return $dataSource;
    }
}

********************************************
Thats all....

Now some images for its look.

Php, Wordpress, CodeIgniter, Magento

Friday, December 20, 2019

Magento 2 extension for admin events management