output->cache() Not Caching Correctly due to incorrect uri in md5($uri)

[eluser]haydenp[/eluser]
Hi

I came across this whilst debuggin my page caching. I scoured the forums as I was initially having the common "blank page" caching problem. This I resolved through the following thread Displaying_Multiple_Views

Once that was resolved my pages were caching in full as expected but I was not convinced by the performance. After inspecting the logs I noticed that the pages were being written to cache on every page load. ie. "Cache file written ..." every time I refreshed the page.

I added a little debugging code to the _display_cache() and _write_cache() methods in "libraries/Output.php" and the following is what it echos to the screen ...

Code:

_display_cache ... CFG->item(index_page) = index.php

_display_cache ... uri = http://10.0.0.5/mobi/index.php

_display_cache ... filepath = C:\Program Files\apache server\mobi/system/cache/33ebdc96708888f88b5854b1522a560e

_write_cache ... config->item(index_page) = index.php/

_write_cache ... uri = http://10.0.0.5/mobi/index.php/

_write_cache ... cache_path = C:\Program Files\apache server\mobi/system/cache/4d800d0ca65c2f40dd19a0773863ed02

In short:

_write_cache()

_write_cache() uses config->item(index_page) = index.php/ ... in the md5($uri)

_display_cache()

_display_cache() uses CFG->item(index_page) = index.php ... in the md5($uri)

NOTE: The missing "/" in _display_cache()

So effectively, although _write_cache() is caching the page correctly, _display_cache() is looking for a different page cos the two md5($uri)'s are different co's on has the "/" at the end, the other does not.

Note: I am using CI Version 1.7.1 and config setting as follows:

$config['index_page'] = "index.php";
$config['url_suffix'] = "";

Cheers,

Hayden