I have always put any fancy visibility logic inside the block view hook, eg,
$block['subject']='';
$block['content']='';
switch($delta) {
case 'foo':
if ( // visibility condition is true ) {
// create the block['subject'] and block['content'] here
}
return $block;
}
since, if $block['content'] is empty, the block won't be displayed. This might be totally "against the drupal way," but I feel it makes for easier to read code and also takes one less php eval out of the loop.
ADDITION: This appears to get some approval here: Is there a way to set block visibility programmatically without using the PHP Filter module?Is there a way to set block visibility programmatically without using the PHP Filter module?
