[Solved] Add a new function in class/Tools.php

[cactusman2]

Hi,

I'm trying to add a new function in the file class/Tools.php
So first to test a little bit I copied the function ConvertPrice() and create ConvertPrice2() just under.
ConvertPrice2() is the exact copy of ConvertPrice(), only the name is different.
Then I opened a module template file using this function (modules/blocknewproducts/newproducts.tpl) and I replaced {convertPrice price=$product.price} by {convertPrice2 price=$product.price}.

Unfortunately this doesn't work. Do I need to declare or load the new function somewhere? Is there a way to make it work.
I can not create a module neither modify the template file. The only way to do what I want is to add a new function in Tools.php.

Thanks !

[Burhan BVK]

You need to register this function with smarty. Check init.php, it is where the presta specific functions are added to smarty.

[cactusman2]

Thanks for your answer

I still have a problem.
I have added this line of code to init.php:

$smarty->register_function('convertPrice2', array('Product', 'convertPrice2'));

After I did that I don't have any error but the price doesn't appear. If I rename the function ConvertPrice() in modules/blocknewproducts/newproducts.tpl the price appear.

Any idea?

[Burhan BVK]

The class name in the register_function should match the class you added the new function.

[cactusman2]

Thanks again!

I'm not sure I understand what you mean so Il will be more specific.
Here is the part of the code in class/Tools.php (function convertPrice2 added)

static public function convertPrice($price, $currency = NULL)
   {
       if ($currency === NULL)
           $currency = Currency::getCurrent();
       $c_id = (is_array($currency) ? $currency['id_currency'] : $currency->id);
       $c_rate = (is_array($currency) ? $currency['conversion_rate'] : $currency->conversion_rate);
       if ($c_id != intval(Configuration::get('PS_CURRENCY_DEFAULT')))
           $price *= $c_rate;
       return $price;
   }

   static public function convertPrice2($price, $currency = NULL)
   {
       if ($currency === NULL)
           $currency = Currency::getCurrent();
       $c_id = (is_array($currency) ? $currency['id_currency'] : $currency->id);
       $c_rate = (is_array($currency) ? $currency['conversion_rate'] : $currency->conversion_rate);
       if ($c_id != intval(Configuration::get('PS_CURRENCY_DEFAULT')))
           $price *= $c_rate;
       return $price;
   }

Here is the part of the code in init.php (register the function)

$smarty->register_function('convertPrice', array('Product', 'convertPrice'));
$smarty->register_function('convertPrice2', array('Product', 'convertPrice2'));

Here is part of the code in modules/blocknewproducts/newproducts.tpl (use new function in template)

{if !$priceDisplay || $priceDisplay == 2}
{convertPrice price=$product.price}{if $priceDisplay == 2} {l s='+Tx' mod='homefeatured'}{/if}
{convertPrice2 price=$product.price}{/if}

After I did that nothing change the second price does not appear (see picture image1.png)

Now if i change the code this way:

{if !$priceDisplay || $priceDisplay == 2}
{convertPrice price=$product.price}{if $priceDisplay == 2} {l s='+Tx' mod='homefeatured'}{/if}
{convertPrice price=$product.price}{/if}

the second price appear (because I'm using convertPrice() and no convertPrice2() (see image2.png)

Thanks again!

[Eihwaz]

As whitelighter said,

$smarty->register_function('convertPrice2', array('Product', 'convertPrice2'));

This line means convertPrice2 is defined in classes/Product.php, in your case, this function is defined in classes/Tools.php.

[cactusman2]

Thanks for your answer.

Actually I just did the same way as convertPrice() which is declared in Tools.php not in Product.php
Even this function being declared in Tools.php the line in init.php is

$smarty->register_function('convertPrice', array('Product', 'convertPrice'));

That's why I did that too for convertPrice2.

Anyway I tried to replace Product by Tools this way

$smarty->register_function('convertPrice2', array('Tools', 'convertPrice2'));

but it doesn't work the page stop loading when calling the function

I also tried to keep the line

$smarty->register_function('convertPrice2', array('Product', 'convertPrice2'));

and to move the function to Product.php but same problem the page stop loading when calling the function

I'm lost!

[Burhan BVK]

If you want modify the convertPrice functionality that is in the smarty, you need to duplicate the convertprice functions that is declared in the Product.php class file, not the one in the Tools class.

[cactusman2]

What I actually want to do is to copy the convertPrice function which is declared in Tools.php because this is the one which display price in module newproducts. In addition I can't find anywhere in product.php where the function is declared :-(
Maybe the function convertPrice I'm talking about (the one in Tools) is not registered to smarty with init.php?

[cactusman2]

Sorry to both of us I found the function in Product.php

Thanks again !