Nested Lists

[knightcode]

I have a page with a few nested lists, which JQM renders into a multi-paged document where each list has an attribute like data-url=index&ui-page=#-# where each # is a number assigned to the list. I also suspect that index is taken from the original page's url.

When the page renders, I'm getting this error from query.mobile.router.js

line: 35
message: "Method "" does not exist"
sourceId: 5821973440
sourceURL: "http://pj.sulia.com:9090/static/compressed/r12210/mobile/js/deps/backbone-min.js"
__proto__: Error

It seems to be generated once for each list, both parent and children.

Also, the router is firing events with a url that's just index, which exactly matches the main page. Is this intentional or a JQM issue? It would be more helpful if I could differentiate the creation events of the main page from the lists.

[knightcode]

Found the cause of my error. I forgot to fill in the events property of my Backbone View.

Differentiating the path given to handlers is still a question, though.

[azicchetti]

Hi,
the error is probably thrown by some code executed in an handler bound with the router (probably the #index handler).

As you've noticed, the typical url built by jquery mobile is in this form: #sourcepage&ui-page=something
To match this url, you need a smart regular expression, 'cause a simple #sourcepage regexp (#index in your case) would match for every single page, even the nested ones.

For instance, you could use:

"#index([?&].*)?": "yourHandler"

This will match urls with hash parameters (#index?id=foo&bar=baz) and nested pages (#index&ui-page=foo-1).
By examining the second group in the regular expression result (match[1]) you can find out which subpage is being rendered.

edit:
You may also want to use two different regexp's for the main page:

"#index$"

and for the subpages:

"#index[&](.*)"

Cheers,
Andrea

[knightcode]

Hi,

Thanks for the info. But I'm actually using this regex for the main page:

"^index$"

And the problem is that all the pages are matching it despite each of JQM's pages for the sublists having something like:

data-url="index&ui-page=0-0"

I would construct a separate regex for the sublists if it seemed like JQM (or something) reported a different route/path for them, but that doesn't seem to be what's happening.

I should note that I have this problem this is the initial page being loaded. Haven't yet observed its behavior when navigating to the page.

As a work-around, I've found that the main page has a class called 'ui-body-c' where the sub list pages have 'ui-body-null'. I can check for the class in my handler and differentiate the actions to take.... but it's a hack.

[knightcode]

Hi,

Seems to happen when navigating to the page as well except that the path/route is the appropriate url of the page. So, for instance, with a url like:

/foo/bar/

and a regex:

"/foo/bar/(?:[^#]*)?$"

fires the associated handler multiple times, say for the 'pageinit' event, with match[0] == '/foo/bar/'.

Let me know if I'm doing something wrong or if I can help debug at all. Thank you!

[azicchetti]

Hi,
the suggested solution should work for a single-file multipage template (that is to say, your application doesn't load pages through ajax).

In order to debug this issue, I need to know whether you're using ajax or not.
The "^index$" regexp shouldn't match in a multipage environment, due to the missing "#".

Could you please send me a zip file with your test case?

Thank you.