NOTICE: Values with “=” in the declaration are optional.

Getting products of a Category

Category::getProducts($id_lang, $p, $n, $order_by = null, $order_way = null, $get_total = false, $active = true, $random = false, $random_number_products = 1, $check_access = true, Context $context = null);

This is the preferred method to get products from any category in Prestashop. It’s used not only in categories pages, but by the homefeatured module, as well as others.

Example Usage

$category = new Category(5);

// Retrieves the first 15 products of a category
$products = $category->getProducts($this->context->language->id, 1, 15);

// Retrieves the first 15 products of a category, returning the number of total products for that category as well. Ordered by price, lowest to highest
$products = $category->getProducts($this->context->language->id, 1, 15, 'price', 'asc', true);


// Gets a random number of products, in random order (yes, even if we specified it)
$products = $category->getProducts($this->context->language->id, 1, 15, 'price', 'asc', false, true);

Getting new products

Product::getNewProducts($id_lang, $page_number = 0, $nb_products = 10, $count = false, $order_by = null, $order_way = null, Context $context = null);

This method can be used statically, without having to instantiate the product class.

Example Usage

$newProducts = Product::getNewProducts((int) $this->context->language->id, 0, 10);

Getting discounted products

Product::getPricesDrop($id_lang, $page_number = 0, $nb_products = 10, $count = false,
		$order_by = null, $order_way = null, $beginning = false, $ending = false, Context $context = null);

This method can also be used statically, without having to instantiate the product class.

Example Usage

// get the last 10 prices drop, ordered by position
$price_drops = Product::getPricesDrop((int) $this->context->language->id, 0, 10);

// get the last 10 prices drops, ordered by price, but only where the offer's start date is after july 23, 2015
$price_drops =  Product::getPricesDrop((int) $this->context->language->id, 0, 10, false,
		'price', 'asc', '2015-7-23 10:45:32');

Getting Best Sales

ProductSale::getBestSales($id_lang, $page_number = 0, $nb_products = 10, $order_by = null, $order_way = null)

This method can also be used statically, without having to instantiate the product class.

Example Usage

// get 10 best selling products, ordered by best selling
$products = ProductSale::getBestSales($this->context->language->id, 0, 10);

Getting Best Sales (Light)

ProductSale::getBestSalesLight($id_lang, $page_number = 0, $nb_products = 10, Context $context = null)

Lighter and quicker version of the above method, which only retrieves strictly necessary information (not recommended to display products in the product-list template)

Example Usage

// get 5 best selling products, ordered by best selling, called from a hook method
$products = ProductSale::getBestSalesLight((int)$params['cookie']->id_lang, 0, 5))

Adding variables to the cookie object

Cookie::__set($key, $value);

Useful to store dynamic information through pages (like user preferences for the current login session)

Example Usage

// you might want to trigger this when a user clicks on the cookie loaw banner (where any), so that you are not prompting him to accept it on every page
$this->context->cookie->__set('cookielawaccepted', 1);

// The value can hold strings as well (arrays can be saved by serializing them)
$this->context->cookie->__set('mycustomoptionmode', 'test');

Checking cookie variables

Cookie::__get($key);

Gets the given key’s value from the cookie object.

Example Usage

// Following up the previous example, you can use this to avoid prompting the user again
if(!$this->context->cookie->__get('cookielawaccepted'))
{
	// display the message 
}

Clearing a cookie variable

Cookie::__unset($key);

Removes the given key from the cookie object.

Example Usage

// removes the cookie law entry,
$this->context->cookie->__unset('cookielawaccepted')

Logging a user out

Customer::logout();

Example Usage

// Clears all of the current session data for this customer
$this->context->customer->logout();

Additional Resources

• Essential Prestashop Functions – Day 1
• Essential Prestashop Functions – Day 2
• Essential Prestashop Functions – Day 3
• Essential Prestashop Functions – Day 5

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