Display nb of orders on list of customers

In this guide i want to show you how to modify your shop back office.I will describe step by step how to display number of customers' orders that will appear near customer on list of customers that is available under customers > customers section in your BO. Well, case requires modification of PrestaShop controller called AdminCustomersController - and i will describe whole process below. Let's go!

You can see new field "orders" that displays number of all orders that customer placed in your shop

How to modify AdminCustomersController ?

To make feature like i show on image above please open file: /controllers/admin/AdminCustomersController.php. Find there line that defines what fields controller will get from database, it starts with $this->_select and it is somewhere near 161 line. At the end of the mysql query add code:

(SELECT COUNT(*) FROM '._DB_PREFIX_.'orders o where o.valid =1 AND (o.id_customer = a.id_customer)) AS nb_of_orders

the whole code of "select" should look like:

        $this->_select = '
        a.date_add, gl.name as title, (
            SELECT SUM(total_paid_real / conversion_rate)
            FROM '._DB_PREFIX_.'orders o
            WHERE o.id_customer = a.id_customer
            '.Shop::addSqlRestriction(Shop::SHARE_ORDER, 'o').'
            AND o.valid = 1
        ) as total_spent, (
            SELECT c.date_add FROM '._DB_PREFIX_.'guest g
            LEFT JOIN '._DB_PREFIX_.'connections c ON c.id_guest = g.id_guest
            WHERE g.id_customer = a.id_customer
            ORDER BY c.date_add DESC
            LIMIT 1
        ) as connect,
        (SELECT COUNT(*) FROM '._DB_PREFIX_.'orders o where o.valid =1 AND (o.id_customer = a.id_customer)) AS nb_of_orders
        ';

Ok, so the query to get number of orders from database is ready. Now it's time to display it. In this case we will have to modify helper list definition. Helper list is a feature available in prestashop that allows to build list of things available in your shop like products, orders, customers etc. You can do it in the same file: AdminCustomersController.php. Find there line that starts with $this->fields_list - this is definition of what controller will display inside the list of customers. At the end please add code that will display our field from mysql query named nb_of_orders:

            'nb_of_orders' => array(
                'title' => $this->l('Orders')
            ),

the full code of fields_list definition should look like:

        $this->fields_list = array(
            'id_customer' => array(
                'title' => $this->l('ID'),
                'align' => 'text-center',
                'class' => 'fixed-width-xs'
            ),
            'title' => array(
                'title' => $this->l('Social title'),
                'filter_key' => 'a!id_gender',
                'type' => 'select',
                'list' => $titles_array,
                'filter_type' => 'int',
                'order_key' => 'gl!name'
            ),
            'firstname' => array(
                'title' => $this->l('First name')
            ),
            'lastname' => array(
                'title' => $this->l('Last name')
            ),
            'email' => array(
                'title' => $this->l('Email address')
            ),
            'nb_of_orders' => array(
                'title' => $this->l('Orders')
            ),
        );

Now you can save changes in this file. After refresh your back office "customers > customers" section you should see new column with "orders" title - it will show the total number of orders that customer placed in your store.