Getting product data in module PS1.6

[fortuner]

Hello, everyone!

I'm trying get product data on product page i.e. name, price, short desc, discount (if applied)

and category - name, description, lowest and highest price.

 

How do I implement this? I assume, there is some built-in Prestashop functionality that makes it possible without SQL queries?

 

Here is the code:

$page_name = Dispatcher::getInstance()->getController(); // page_name var doesn't work without without this?
if ($page_name == 'product')
{
   // What do I do here?
} 
elseif ($page_name == 'category')
{
   // and here?
}

[fortuner]

I am now stuck here:

$page_name = Dispatcher::getInstance()->getController(); // page_name var doesn't work without without this
if ($page_name == 'product')
{
   $product = new Product((int)Tools::getValue('id_product'));
   if (Validate::isLoadedObject($product))
   {
      var_dump($product); // This shows all $product data, but I need very little from that.
   }
}

How do I get values I need from $product array and assign them to smarty array? I.e product name, price etc?

I'm sorry if I'm doing something wrong, I'm novice in php.

[jgamio]

1) To get a product data just use check the Product class some info is there other maybe need to load 

 

example $product->name to get the product name

 

2) to assign to you smarty just use some these

$this->context->smarty->assign(array(
  'product_name' => $product->name,
  'product' => $product

));

you can send just the data or the product the on template just

<p > {$product_name}</p>

or 

<p > {$product.name}</p>

[fortuner]

 

1) To get a product data just use check the Product class some info is there other maybe need to load 

 

example $product->name to get the product name

 

2) to assign to you smarty just use some these

$this->context->smarty->assign(array(
  'product_name' => $product->name,
  'product' => $product

));

you can send just the data or the product the on template just

<p > {$product_name}</p>

or 

<p > {$product.name}</p>

Sorry, this doesn't work:(

Notice: Undefined variable: product

Notice: Trying to get property of non-object in line bla-bla

 

This is module, not a theme, so i guess it cannot access data like that: $product->name

[yaniv14]

Make sure you have the 'id_product' of a real product ID in your url parameters.

Also I am assuming that you have a template assign to the display hook.

[fortuner]

Make sure you have the 'id_product' of a real product ID in your url parameters.

Also I am assuming that you have a template assign to the display hook.

You mean like this? And how to use it in tpl then? {$product_name} shows an error array to string conversion.

$product = new Product((int)Tools::getValue('id_product'));
$this->context->smarty->assign(array(
  'product_name' => $product->name,
  //and other product stuff
));

Edited October 10, 2015 by fortuner (see edit history)

[yaniv14]

Can you explain again what exactly are you trying to do.

On your first post you mentioned that you are trying to get product data on product page.

On product page all the data already assigned to smarty variables thru ProductController which located in controllers/front folder.

You can try print the data in the product tpl just to see what product variable gives you. like: {$product|@print_r}

You can see sample of product values in the same tpl like {$product->name}

 

If you are talking about something different please explain.

[jgamio]

You need to see these

$this->context->smarty->assign(array(
  'name_to_use_on_tpl' => $data_on_your_module
  
));

now you pass just a string or a object depen on your values you need change how get the info on the tpl

[fortuner]

Can you explain again what exactly are you trying to do.

On your first post you mentioned that you are trying to get product data on product page.

On product page all the data already assigned to smarty variables thru ProductController which located in controllers/front folder.

You can try print the data in the product tpl just to see what product variable gives you. like: {$product|@print_r}

You can see sample of product values in the same tpl like {$product->name}

 

If you are talking about something different please explain.

Hello!

I'm trying to make little module, that shows additional info on product page.

Something like that: "you can buy product X on address Y for price Z"

I've already done SQL query to show store addresses and other contacts and succeeded to show them on the page I need.

But I'm new to PHP, smarty and Prestashop classes coding, so I don't know how to show product name (price, etc) on product page in module

		$product = new Product((int)Tools::getValue('id_product'));
		$this->context->smarty->assign(array(
		  'product_name' => $product->name,
		  'product_price' => $product->price,
		));

This looks like should work, isn't it? If it is wrong, correct me please. And please tell me how to show these two in smarty.

Thanks in advance!

[yaniv14]

Well, everything looks fine but I'll try to explain better.

 

this line: $product = new Product((int)Tools::getValue('id_product')); will get product with ID number from post or get 'id_product' so if you are in product page and your module loads on that page and for example the url is like that: http://domain.com/index.php?controller=product&id_product=5 so product with id 5 will be instanced.

 

Tools:getValue its a build in function of prestashop to replace php $_POST or $_GET.

 

 

$this->context->smarty->assign(array(
         'product_name' (this is the variable to be accessed in the template) => $product->name (this is the data implanted in that variable),
        ));

 

after you assign the smarty variables array you will need to assign a template for it and return it if thats the end of the function (in display hooks most likely yes) like:

 

return $this->display(__FILE__, 'location_of_template/template_name.tpl');

 

finally in the template you will only need to call the variable like {$product_name}

 

Now I assume that you are hooking that entire function to an existing display hook? because the fact that the module is loaded doesnt mean that the template will show.

product.tpl is the file that in charge of the main display of product page and that file is setup with calls for all related hooks like: hookDisplayLeftColumnProduct/hookDisplayRightColumnProduct/etc.....

 

in your case you need to see where is your problem exactly.

 

1. are you getting the $product it self from DB

2. are you hooking it to a real hook

 

try to echo $product (echo print_r($product) and see if you get that first.

maybe you can post the entire content of your module main file to see if i can better help.

[fortuner]

Well, everything looks fine but I'll try to explain better.

 

this line: $product = new Product((int)Tools::getValue('id_product')); will get product with ID number from post or get 'id_product' so if you are in product page and your module loads on that page and for example the url is like that: http://domain.com/index.php?controller=product&id_product=5 so product with id 5 will be instanced.

 

Tools:getValue its a build in function of prestashop to replace php $_POST or $_GET.

 

 

$this->context->smarty->assign(array(

         'product_name' (this is the variable to be accessed in the template) => $product->name (this is the data implanted in that variable),

        ));

 

after you assign the smarty variables array you will need to assign a template for it and return it if thats the end of the function (in display hooks most likely yes) like:

 

return $this->display(__FILE__, 'location_of_template/template_name.tpl');

 

finally in the template you will only need to call the variable like {$product_name}

 

Now I assume that you are hooking that entire function to an existing display hook? because the fact that the module is loaded doesnt mean that the template will show.

product.tpl is the file that in charge of the main display of product page and that file is setup with calls for all related hooks like: hookDisplayLeftColumnProduct/hookDisplayRightColumnProduct/etc.....

 

in your case you need to see where is your problem exactly.

 

1. are you getting the $product it self from DB

2. are you hooking it to a real hook

 

try to echo $product (echo print_r($product) and see if you get that first.

maybe you can post the entire content of your module main file to see if i can better help.

 

 

Here is my code (except addresses part, it's working well)

public function hookHeader()
{
	$product = new Product((int)Tools::getValue('id_product'));
	$this->context->smarty->assign(array(
	  'name' => $product->name,
	  'price' => $product->price,
	));
	return $this->display(__FILE__, 'mod_blockcontactinfos_header.tpl');
	$this->context->controller->addCSS(($this->_path).'mod_blockcontactinfos.css', 'all');
}

Then in tpl file I try this code:

{$name}

Which causes an error:

Notice: Array to string conversion in C:\OpenServer\domains\...

[yaniv14]

hookHeader is attach to the <header> tag and not the body tag so you wont see anything if you attach a template to it.

 

Prestashop use that hook to add CSS or JS mainly.

 

Also the last line of adding a css won't happen because its after the return.

 

Try to split it into and see if you get something (check that the module hooked to the footer first):

 

public function hookHeader()
{
    $this->context->controller->addCSS(($this->_path).'mod_blockcontactinfos.css', 'all');
}

 

public function hookFooter($params)

{
    $product = new Product((int)Tools::getValue('id_product'));
    $this->context->smarty->assign(array(
     'name' => $product->name,
     'price' => $product->price,
    ));
    return $this->display(__FILE__, 'mod_blockcontactinfos_header.tpl');
}

[fortuner]

hookHeader is attach to the <header> tag and not the body tag so you wont see anything if you attach a template to it.

 

Prestashop use that hook to add CSS or JS mainly.

 

Also the last line of adding a css won't happen because its after the return.

 

Try to split it into and see if you get something (check that the module hooked to the footer first):

 

public function hookHeader()

{

    $this->context->controller->addCSS(($this->_path).'mod_blockcontactinfos.css', 'all');

}

 

public function hookFooter($params)

{

    $product = new Product((int)Tools::getValue('id_product'));

    $this->context->smarty->assign(array(

     'name' => $product->name,

     'price' => $product->price,

    ));

    return $this->display(__FILE__, 'mod_blockcontactinfos_header.tpl');

}

Thanks, I'll fix that.

What about displaying $name and $price in smarty mod_blockcontactinfos_header.tpl?

[yaniv14]

Change it first and see if you still get error.

If you still got an error try to print $product to see what you get

 

after $product = new Product((int)Tools::getValue('id_product'));

add: var_dump($product);

[ventura]

Try it this way

 

take the product object

$product = new Product((int)Tools::getValue('id_product'), true, $this->context->language->id, $this->context->shop->id);

assign the variable in template

 $this->context->smarty->assign(array(
     'product' => $product,

));

now you can access to all object variables in template

{$product->name}

[fortuner]

Change it first and see if you still get error.

If you still got an error try to print $product to see what you get

 

after $product = new Product((int)Tools::getValue('id_product'));

add: var_dump($product);

Thank you very much, You are helping me so much!

I added {debug} in tpl to see what does smarty has and it has shown me a $name var which i added like this

$this->context->smarty->assign('name', $product->name);

I finally found where the problem is:

Smarty_Variable Object (3)
->value = Array (2)
  1 => "Faded Short Sleeve T-shirts"
  2 => "Faded Short Sleeve T-shirts"
->nocache = 1
->scope = "file:C:\OpenServer\domains\y1.loc\www..."

The product name is an array because in my test shop there are two languages active.

How do I get product name with current language?

Thank you again!

[yaniv14]

Use Ventura example.

 

$product = new Product((int)Tools::getValue('id_product'), true, $this->context->language->id, $this->context->shop->id);

[fortuner]

 

Try it this way

 

take the product object

$product = new Product((int)Tools::getValue('id_product'), true, $this->context->language->id, $this->context->shop->id);

assign the variable in template

 $this->context->smarty->assign(array(
     'product' => $product,

));

now you can access to all object variables in template

{$product->name}

A blank page without errors (error reporting is on). I totally do not understand this.

[fortuner]

A blank page without errors (error reporting is on). I totally do not understand this.

Ok, this one was a problem

 $this->context->smarty->assign(array(
     'product' => $product,

));

This works instead:

$this->context->smarty->assign('product_name', $product->name);

Thank you!

[fortuner]

I've run on some problem with price display. It is displayed witout taxes despite I use convertPrice. Here is the code:

PHP

$product = new Product((int)Tools::getValue('id_product'), true, $this->context->language->id, $this->context->shop->id); 
$this->context->smarty->assign('product', $product); 

Smarty

{if !$priceDisplay}{convertPrice price=$product->price}{else}{convertPrice price=$product->price_tax_exc}{/if}

Where is my mistake?

[yaniv14]

try to use this to get product price.

{convertPrice price=$product->getPrice(true, $smarty.const.NULL, 6)}

[fortuner]

try to use this to get product price.

{convertPrice price=$product->getPrice(true, $smarty.const.NULL, 6)}

It works, thanks a lot!

Could you please explain what does the expression in backets?

This one (true, $smarty.const.NULL, 6)

[yaniv14]

This is the full function from classes/Product.php

 

public function getPrice($tax = true, $id_product_attribute = null, $decimals = 6, $divisor = null, $only_reduc = false, $usereduc = true, $quantity = 1)

 

all parametes are optional, you are using the first 3 only.

 

basically this function inherit from the main function that is getPriceStatic that look like this.

 

public static function getPriceStatic($id_product, $usetax = true, $id_product_attribute = null, $decimals = 6, $divisor = null,

$only_reduc = false, $usereduc = true, $quantity = 1, $force_associated_tax = false, $id_customer = null, $id_cart = null,

$id_address = null, &$specific_price_output = null, $with_ecotax = true, $use_group_reduction = true, Context $context = null,

$use_customer_price = true)

Edited October 15, 2015 by yaniv14 (see edit history)

[fortuner]

 

This is the full function from classes/Product.php

 

public function getPrice($tax = true, $id_product_attribute = null, $decimals = 6, $divisor = null, $only_reduc = false, $usereduc = true, $quantity = 1)

 

all parametes are optional, you are using the first 3 only.

 

basically this function inherit from the main function that is getPriceStatic that look like this.

 

public static function getPriceStatic($id_product, $usetax = true, $id_product_attribute = null, $decimals = 6, $divisor = null,

$only_reduc = false, $usereduc = true, $quantity = 1, $force_associated_tax = false, $id_customer = null, $id_cart = null,

$id_address = null, &$specific_price_output = null, $with_ecotax = true, $use_group_reduction = true, Context $context = null,

$use_customer_price = true)

 

According to you words this getPrice(false, $smarty.const.NULL, 6) should get a price without taxes right?

Tell me please, how do I get the date for special price valid until? Is there any function or I should get it with MySQL query?

[yaniv14]

For your first question 'YES'

For your second question I am not sure because I never needed to use it, but you can try getSpecificPrice() function form classes/SpecificPrice.php

[fortuner]

Here is solution to get specific price date:

{if !empty ($product->specificPrice)}
   {foreach from $product->specificPrice item=to key="id"}
      {$product->specificPrice.to|date_format:"%Y-%m-%d"} // Date format without hours and minutess
   {/foreach}
{/if}

[fortuner]

I'm now trying to get products from current category. But it returns only one product.

What am I doing wrong?

PHP

$products = $category->getProducts($this->context->language->id, $get_total = true, $active = true);

Smarty

{$products|print_r} // Returns first product
{$products|@count} // Returns 1 instead product count

How do I fix this?

[yaniv14]

The function has 3 required params - lang, page number & products per page.

 

So I guess you can try:

 

$products = $category->getProducts($this->context->language->id, 1, 1000);

[fortuner]

Thank you so much! You are saving me

How do I know  which parameters are required for some other functions?

[yaniv14]

Usually its documented above the function

[fortuner]

How do I get if product available for order when out of stock?

In product-list.tpl it is $allow_oops variable, but it doesn't work in module.

I was looking through Product class and didn't find anything matching

 

Thanks inadvance!

[yaniv14]

This is probably smarty assigned variable, so you should check in the controllers instead of the classes.

Edited October 23, 2015 by yaniv14 (see edit history)

[fortuner]

I've found the solution to get info if product is available, when out of stock

Here is the code:

$allow_oosp = (int)Configuration::get('PS_ORDER_OUT_OF_STOCK');

Returns 1 when product is available and 0 when it isn't.

I want to admit that developing for Prestashop is easy to understand.