Contrib.social

Update README.txt to address cache_form risk

Open on Drupal.org →
Created on 8 August 2017, over 7 years ago
Updated 30 July 2024, 4 months ago

Step 2b in README.txt is currently the following:

- Step 2b
Add the following code to your settings.php file:

/**
* Add APC Caching.
*/
$conf['cache_backends'][] = 'sites/all/modules/apc/drupal_apc_cache.inc';
$conf['cache_default_class'] = 'DrupalAPCCache';
//$conf['apc_show_debug'] = TRUE; // Remove the slashes to use debug mode.

This is a bad idea because it will put cache_form in APC, and cache_form isn't really cache, it's session state data. It's known that storing cache_form in APC causes problems like #1342998: AJAX in views form stops working → .

How about we change Step 2b to the following?

- Step 2b
Add the following code to your settings.php file:

/**
* Add APC Caching.
*/
$conf['cache_backends'][] = 'sites/all/modules/apc/drupal_apc_cache.inc';
$conf['cache_default_class'] = 'DrupalAPCCache';
// The 'cache_form' bin must be assigned to non-volatile storage.
$conf['cache_class_cache_form'] = 'DrupalDatabaseCache';
//$conf['apc_show_debug'] = TRUE; // Remove the slashes to use debug mode.

📌 Task
Status

Fixed

Version

1.0

Component

Documentation

Created by

davidsickmiller

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