1) Deleted in-place-editing. We'll be replacing this with a real edit
system that groups settings together and is more coherent.
2) Tweaked the way that dialog boxes work to get the ajax stuff working
again. It's imperfect and does not work properly for uploading images.
This is going to get redone also, but this is a good resting point.
3) Created edit forms for albums and photos. Moved _update and _create out
of Items_Controller and into the individual subclasses.
4) Created access::required which is a shorthand for:
if (!access::can(...)) {
access::forbidden();
}
5) Added validation rules to Items_Model
6) Converted login to use the regular modal dialog approach in the theme.
o Add model_cache::get() which caches models avoiding duplicate lookups
o Stop using ORM relationships for Item_Model::owner so that we can use caching
o For Item_Model::xxx_edit fields, don't make them editable for guests
o Other minor stuff.
These optimizations reduce the number of queries for a 9-photos page from ~200
to ~45. Still way too many!
$theme->block_type() so that the themer has a consistent interface.
Also added a bunch more callbacks and normalized the names so that the
module author has plenty of options for where stuff gets put on the
page. Especially renamed album/photo/sidebar to be album_blocks()
photo_blocks() and sidebar_blocks() to make it clear that those are
going to be larger content sections and not just basic insertion
points.
Used __call() to collapse all functions in the theme, which
incidentally makes it trivially easy to add a new insertion point.
