Hi,
[FYI, my problem is SOLVED -- But I still wonder about this...]
I have been using a menu with web2py since v1.8x (currently 1.98.2). I now
have 3 different versions running on three different servers.
PRODUCTION -- 1.98.2 -- menu is OK
TEST - 1.99.3 -- menu is screwy
DEV - 1.99.4 -- menu is screwy
Now the problem is that when I created a menu, it didn't load properly
unless I had subitems in it -- I have dividing images that load between the
top level menu items, and if the top level item doesn't contain children,
then the dividing images wouldn't load.
Ok, so I managed to get past that by adding an "empty" menu row:
empty = (T(''), False, URL(), [])
Now, on web2py<=1.98.2 this is fine -- the menu class decides not to create
a dropdown and all is well.
However, on 1.99.{3,4} the menu is "screwy": it creates an empty dropdown
with a computed height of 4px, which contains an li and anchor, but no text
nodes. Now, removing the "empty" and just using an empty list gives me the
image issue (so maybe that's my fault and I should relook at that and
choose different css selectors).
So I guess I'm wondering if anyone else had a problem with Top-Level Menu
items with NO children not getting the proper class they need to style
their menus appropriately? Anyone have an inkling as to what I'm doing
wrong from what I've described? I'm wondering if it has anything to do with
the new "mobile" code for menus?
If not, then I guess this whole post is moot, and I'm doing something
stupid somewhere, but if so, lemme know!
Thanks!
PS:
here's my solution that allows you to use "None" or an empty tuple "()"
inside of the list arg:
In web2py/gluon/html.py, COPY (don't modify in place!!) the entire MENU
class into your models file (or modules and import in models, but it really
doesn't matter), and add these lines inside of the "serialize" function:
if not item or len(item)<3:
continue
right after the "for item in data" loop, so serialize would look like so:
def serialize(self, data, level=0):
if level == 0:
ul = UL(**self.attributes)
else:
ul = UL(_class=self['ul_class'])
for item in data:
if not item or len(item) < 3:
continue
(name, active, link) = item[:3]
if isinstance(link,DIV):
li = LI(link)
elif 'no_link_url' in self.attributes and self['no_link_url']==
link:
li = LI(DIV(name))
elif link:
li = LI(A(name, _href=link, _title=name))
else:
li = LI(A(name, _title=name, _href='#',
_onclick='javascript:void(0):return false'))
if len(item) > 3 and item[3]:
li['_class'] = self['li_class']
li.append(self.serialize(item[3], level+1))
if active or ('active_url' in self.attributes and self[
'active_url']==link):
if li['_class']:
li['_class'] = li['_class']+' '+self['li_active']
else:
li['_class'] = self['li_active']
ul.append(li)
return ul
Then in your Menu do:
empty = None # or empty = ()
response.menu = [
(T('Whatever'), False, URL(...wherever...), [empty]),
...
]
