chrishecker

Here’s the diff that fixes it. Not sure why that pgcache.enabled check was taken out of process(), but this disables it correctly.

Chris

=== modified file 'wp-content/plugins/w3-total-cache/lib/W3/PgCache.php'
--- wp-content/plugins/w3-total-cache/lib/W3/PgCache.php        2012-03-15 18:54:42 +0000
+++ wp-content/plugins/w3-total-cache/lib/W3/PgCache.php        2012-03-15 21:49:43 +0000
@@ -134,6 +134,10 @@
      * Do cache logic
      */
     function process() {
+        if(!$this->_config->get_string('pgcache.enabled')) {
+            return;
+        }
+
         /**
          * Skip caching for some pages
          */

This was hosing me as well, so I fixed it. I don’t know why the S3.php code was deciding that it was an error to not force an upload to an already existing file with a matching hash, but that seems silly.

Chris

=== modified file 'wp-content/plugins/w3-total-cache/lib/W3/Cdn/S3.php'
--- wp-content/plugins/w3-total-cache/lib/W3/Cdn/S3.php 2011-04-30 06:07:42 +0000
+++ wp-content/plugins/w3-total-cache/lib/W3/Cdn/S3.php 2011-05-08 05:52:57 +0000
@@ -128,7 +128,9 @@
                 $s3_hash = (isset($info['hash']) ? $info['hash'] : '');

                 if ($hash === $s3_hash) {
-                    return $this->get_result($local_path, $remote_path, W3TC_CDN_RESULT_ERROR, 'Object already exists');
+                    return $this->get_result($local_path, $remote_path, W3TC_CDN_RESULT_OK, 'Already exists, okay.');
+                } else {
+                    return $this->get_result($local_path, $remote_path, W3TC_CDN_RESULT_ERROR, 'Object already exists with different hash');
                 }
             }
         }

I assume the string doesn’t have to be “OK” for a W3TC_CDN_RESULT_OK, so I made it more descriptive.

No ideas on how to solve this?

Chris

Okay, I fixed the plugin on my site with wp 2.9.2. At the top of attachment-extender.php, you need to change it to:

if (!function_exists('add_action')) {
        require_once('../../../wp-load.php');
        require_once('../../../wp-admin/includes/media.php');
} //  end : if (!function_exists('add_action'))

I’m not a php expert, but apparently media.php was removed from whatever the includes were at some point when wordpress was updated.

Chris