foreach($_POST as $key => $value){
        if($key != 'update-areas-module-submit' && $value != ''){
            $key = explode(',', $key);
            $textExists = $wpdb->get_results("SELECT * FROM areas_module_text WHERE relation = '".$key[0]."' AND state = '".$key[2]."'");
            $urlExists = $wpdb->get_results("SELECT * FROM areas_module_urls WHERE relation = '".$key[0]."' AND state = '".$key[2]."'");
            if($textExists || $urlExists){
                if($key[1] === 'text'){
                    $wpdb->update(
                        'areas_module_text',
                        array(
                            'text'  => $value,
                        ), array('relation' => $key[0], 'state' => $key[2]));
                }else if($key[1] === 'url'){
                    $wpdb->update(
                        'areas_module_urls',
                        array(
                            'url'  => $value,
                        ), array('relation' => $key[0], 'state' => $key[2]));
                }
            }else{
                if($key[1] === 'text'){
                    $wpdb->insert(
                        'areas_module_text',
                        array(
                            'text'  => $value,
                            'state'  => $key[2],
                            'relation' => $key[0]
                        ));
                }else if($key[1] === 'url'){
                    $wpdb->insert(
                        'areas_module_urls',
                        array(
                            'url'  => $value,
                            'state'  => $key[2],
                            'relation' => $key[0]
                        ));
                }
            }
        }
    }
    echo '<div class="updated"><p>Updated successfully!</p></div>';
}