Feature: control over fallback order

[iainhallam]

(Taken from the discussion at https://www.dokuwiki.org/plugin:avatar)

"Right now it seems that the order is Look for the avatar file → Generate the monster ID (via gravatar) → Use the default images (via gravatar) → Get the gravatar. I don't want gravatar to see the image requests, but I'm sure that some people don't mind/care - to each his own. So, two things: don't talk to gravatar if you don't need to, and I'd like to be able to swap the fallback order in the config menu.

"Here is how I would do it in skeleton code:-

$fallbacks   = explode( ',', $this->getConf( 'fallback' ) );
$fallbacks[] = 'default';  // Make sure that there is a successful case
 
$src = false;
foreach ( $fallbacks as $fb )
{
    switch ( trim($fb) )
    {
        case 'localimage':
            // check first if a local image for the given user exists
            break;
 
        case 'monsterid':
            // build the URL for the local monster id
            break;
 
        case 'gravatar':
            // build the URL for the gravatar
            break;
 
        case 'default':
        default:
            // fall back to the fixed image sizes
    }
 
    if ( $src !== false )
        break;
}

"Hence, I can get what I achieve by setting $conf['fallback'] = 'localimage', and the current way by setting it to localimage,gravatar."

– Andy Turner 2009-07-14 15:10