source/php/App.php
public static function checkDatabaseTable()
    {
        global $wpdb;
        $table_name = $wpdb->prefix . 'integrate_occasions';
        if ($wpdb->get_var("SHOW TABLES LIKE '$table_name'") != $table_name) {
            self::databaseCreation();
        }

        return;
    }
public static function checkDatabaseTable()
    {
        global $wpdb;
        $table_name = $wpdb->prefix . 'integrate_occasions';
        if ($wpdb->get_var("SHOW TABLES LIKE '$table_name'") != $table_name) {
            self::databaseCreation();
        }

        return;
    }
Create database table if not exist
@return void