Overriding module PHP file

[jumbo]

Hi

 

I searched for an answer to this, but couldn't find a clear answer

 

Please I need a clear answer to this for once!

 

I want to know if it's possible to override a module's PHP file. I know it is possible for tpl and I know how to do it. But I need to modify a function in a module's PHP file.

 

Thank you.

[tomerg3]

no, it's not, you have to actually replace the file.

[jumbo]

no, it's not, you have to actually replace the file.

 

This means that, when I update the module, my changes will be discarded...

[tomerg3]

Yes, but as modules often change, it's not very likely that an override would work anyway, especially if the module code is not well organized and structured..

[WIZZAH]

Is this stilll true in the 1.5x version? No way to change module behavior other then through the template files?

[Visiedo]

I think the easiest and safest way to do it is just to rename the module.

Let's say you would like to override the module "blockcategories":

• Copy the module to a new folder, e.g. myblockcategories, with all the files, and preserving the directory structure
  
• In the new folder, rename blockcategories.php, .tpl, .css by "myblockcategories".
  
• Rename the name of the class and information in the construct method:
  

class MyBlockCategories extends Module
{
public function __construct()
{
 $this->name = 'myblockcategories';
 $this->tab = 'front_office_features';
 $this->version = '2.0';
 $this->author = 'PrestaShop'
 parent::__construct();
 $this->displayName = $this->l('My custom Categories block');
 $this->description = $this->l('Adds a block featuring product categories. Custom version');
}

 

Now modify the. Php as desired. Once you are done you should install the newly created module.

Start by disabling / uninstall the original module in the back office. Then search for your module and install it.

 

Please let me know if you need more details

Edited May 27, 2013 by Visiedo (see edit history)

[bibisha]

Go to :  override/modules/ {module folder}

 

here 'MyModule' is the module name

 

And follow this code pattern in mymodule.php

 

<?php

 

if (!defined('_CAN_LOAD_FILES_'))

    exit;

 

class MyModuleOverride extends MyModule

{

 

 

}

[Daniel - PrestaBR]

 

Go to :  override/modules/ {module folder}

 

here 'MyModule' is the module name

 

And follow this code pattern in mymodule.php

 

<?php

if (!defined('_CAN_LOAD_FILES_'))

    exit;

class MyModuleOverride extends MyModule

{

}

That is good news!

I wonder why they didn't update the docs.

[jgamio]

These work on all version ?

[bellini13]

only since PS v1.6.0.11

[Dev Franco]

Hi,

 

If I use override folder, need to move all the module files into it?? or only the files to be changed?

[bellini13]

i believe it is just the main module file that can be overriden, you would only move that one file

[PascalVG]

Nemo1 wrote some article about it here

[Dev Franco]

Hi,

 

As in the topic, I have added the blocktopmenu module to override folder and done the changes. Now I updated blocktopmenu module through admin to know what will happen after update and it produced an error.

 

Fatal error: Access level to BlocktopmenuOverride::makeMenuOption() must be protected (as in class Blocktopmenu) or weaker in D:\projects\beverenps\override\modules\blocktopmenu\blocktopmenu.php on line 1372

 

What does it mean?? Please help.

[jgamio]

Did you make a public function on the override ?

[Dev Franco]

No. Please make it more clear.

[jgamio]

How do you declare the function 

 

must be protected

 

sound like the function is private or proteted and you are declaring public 

[Dev Franco]

No, the function is private. I didn't change the function scope.

[tuk66]

You cannot override private method (makeMenuOption). Only public and protected ones.

[Dev Franco]

But the override worked . The problem occured only when updating the module.

[bellini13]

most likely the function was not private in the previous version...