class-admin-functions.php

<?php
/**
 * The admin-specific functionality of the plugin.
 *
 * @link       https://wordpress.org/plugins/woocommerce-role-based-price/
 *
 * The admin-specific functionality of the plugin.
 *
 * Defines the plugin name, version, and two examples hooks for how to
 * enqueue the admin-specific stylesheet and JavaScript.
 *
 * @package    @TODO
 * @subpackage @TODO
 * @author     Varun Sridharan <varunsridharan23@gmail.com>
 */
if ( ! defined( 'WPINC' ) ) { die; }

class WooCommerce_Quick_Donation_Admin_Function {
    
    public function __construct(){
        add_action( 'post_row_actions', array($this,'protect_donation_product'),99,2);
        add_filter( 'pre_get_posts', array($this,'hide_donation_order_woocommerce_order'));
        add_filter( 'wc_order_types',array($this,'add_wc_order_types'),99,2);
        
    } 
    
    
    
    public function hide_donation_order_woocommerce_order($query) {
        global $pagenow,$post_type;  
        $query = $query;
        if(!defined('WC_QD_QRY_OVERRIDE')){
            if( 'edit.php' == $pagenow || $query->is_admin && 'shop_order' == $post_type){ 
                $query->set('meta_query',array('relation' => 'AND', array('key' => '_is_donation','compare' => 'NOT EXISTS')));
            }
        }
        return $query;
    }    
    
     
    public function add_wc_order_types($order_types,$type){
        $order_type = $order_types;
        if('' == $type){
            $order_type[] = WC_QD_PT; 
        }
        return $order_type;
    }
    
	/**
	* Protects Donation Product By 
	* @filter_user post_row_actions
	* @param  Array $actions Refer WP.org
	* @param  Array $post    Refer WP.org
	* @return Array Refer WP.org
	* @since 1.0
	*/
	public function protect_donation_product($actions,$post) {
        
		if('product' == $post->post_type) {  
			if($post->ID == WC_QD_ID){
				unset($actions['inline hide-if-no-js']);
				unset($actions['trash']);
				unset($actions['duplicate']);
                $text = __('Remove '.WC_QD.' Plugin To Remove This Product',WC_QD_TXT);
				$actions['trash'] = '<a href="javascript:alert(\' '.$text.' \');"> Trash </a>';
				
			}
		}
        return $actions;
	}    
}