PDF Generation Failed - Smarty Cache - Clearing Cache corrupts class_index

[winkl0r]

HI,

 

we are facing a Problem with our Presta Shop installation (1.6.1.7)

 

whenever we clear the smarty cache in the GUI following entrys dissapear from the /www/cache/class_index file:

 'PDFGenerator' =>
  array (
    'path' => '',
    'type' => 'class',
    'override' => false,
  ),
  'PDFGeneratorCore' =>
  array (
    'path' => 'override/classes/pdf/PDFGenerator.php',
    'type' => 'class',
    'override' => false,
  ),

after that only an "empty page" is displayed when clicking on an invoice or any other PDF.

 

Strange thing is, this file is automatically generated, and to fix the issue, we have to delete the class_index from the cache directory. When the file is then automatically generated again all the entries are there and PDF generation works like a charm.

I dont understand, why this is happening.

 

Any ideas what could be the problem?

Currently I've set the "never clear cache" option, to prevent the shop from corrupting itself after every change, because the default option is to clear cache after every change.

Thanks in advance!

 

[tuk66]

Can you post the /override/classes/pdf/PDFGenerator.php file?

[winkl0r]

I have attached the requested file.

 

/www/override/classes/pdf/PDFGenerator.php

 

Thanks in advance!

PDFGenerator.php

[tuk66]

Classes in the override directory can have only this form:

class PDFGenerator extends PDFGeneratorCore
{
}

[winkl0r]

Ok, I will have a look at that.

but do you have any idea how this happened? was working until we upgraded from 1.6.1.3 to 1.6.3.7 a few weeks ago with "1 Click upgrade", we did not copy anything manually to that location.