Sorting/grouping by multiple properties. - Implement sorting/grouping by multiple properties for the web interface. I'm now using @sort0/@sortdir0,@sort1/@sortdir1,... and @group0/@groupdir0,... when generating URLs from a search template. These are converted to a list internally. When saving URLs (e.g. when storing queries) I'm using @sort=prop1,prop2,... and @group=... with optional '-' prepended to individual props. This means saved URLs are backward compatible with existing trackers (and yes, this was a design goal). I need the clumsy version with @sort0,@sort1 etc, because I'm currently using several selectors and checkboxes (as the classic template does, too). I don't think there is a way around that in HTML? - Updated (hopefully all) documentation to reflect the new URL format and the consequences in the web-interface. - I've set the number of sort/group properties in the classic template to two -- this can easily be reverted by changing n_sort to 1. Richard, would you look over these changes? I've set a tag before and (will set) after commit, so that it would be easy to merge out. Don't be too scared about the size of the change, most is documentation, the guts are in cgi/templating.py and small changes in the classic template.

class MockNull:
    def __init__(self, **kwargs):
        for key, value in kwargs.items():
            self.__dict__[key] = value

    def __call__(self, *args, **kwargs): return MockNull()
    def __getattr__(self, name):
        # This allows assignments which assume all intermediate steps are Null
        # objects if they don't exist yet.
        #
        # For example (with just 'client' defined):
        #
        # client.db.config.TRACKER_WEB = 'BASE/'
        self.__dict__[name] = MockNull()
        return getattr(self, name)

    def __getitem__(self, key): return self
    def __nonzero__(self): return 0
    def __str__(self): return ''
    def __repr__(self): return '<MockNull 0x%x>'%id(self)
    def gettext(self, str): return str
    _ = gettext