[Zope3-Users] z3c.zrtresource or zc.resourcelibrary

Jeff Shell eucci.group at gmail.com
Wed Nov 1 19:39:42 EST 2006

On 10/31/06, Gary Poster <gary at zope.com> wrote:
> > I do a lot inline in my Python code, using our nevow.Stan inspired tag
> > generation system and little bits and pieces I threw together to ease
> > in generating short bits of JS from within Python. In particular,
> > marshalling of basic Python structures to Javascript using a modified
> > `jsonencode` module from the `simplejson` package.
> What are the modifications?  The things you list below all sound like
> normal simplejson stuff.

The main modification is that it pass over 'raw' JS Code - statements
that have already been encoded, function calls, raw names, etc. I
think I did some tweaks to its string quoting system as well, but I
don't recall.


    >>> print js.encode('raw')
    >>> print js.encode(js.raw('raw'))

This gets to be handy when generating function calls. `js.call` str's
the first option, and then encodes the rest to create an arguments
list, which it returns as a `js.raw` object so that it won't be quoted
as a string::

    >>> dumbalert = js.call('window.alert', 'Stupid simple example')
    >>> print dumbalert
    window.alert('Stupid simple example')
    >>> print js.anonymous(js.expr(dumbalert))
    function() {window.alert('Stupid simple example');}
    >>> print js.call('setTimeout', js.anonymous(js.expr(dumbalert)), 5*1000)
    setTimeout(function() {window.alert('Stupid simple example');}, 5000)

It's simple, but helpful, especially as calls and data build up. But
even without building up a little system like this, it's probably good
to use tools like `simplejson` to keep javascript data pretty, even in
generated strings such as in TAL/TALES, just as it's good practice to
use SQL Quoting.

> >> Other JS-related bits to know about (you'll have to do your own
> >> reading sometime :-): http://zif.hill-street.net/headincludes (WSGI
> >> variation on resourcelibrary), http://zif.hill-street.net/gzipper/
> >> (WSGI, gzips all output for smaller browser page sizes), http://
> >> zif.hill-street.net/jsmin/ (WSGI, compresses JS for smaller browser
> >> page sizes), and http://svn.zope.org/z3c.javascript/
> >> (resourcelibrary-
> >> aware collection of mochikit, dojo, et al).
> >
> > Ah, the real reason for my response here: how does one use third party
> > WSGI "Middleware" with Zope?
> zope.paste, maybe (http://svn.zope.org/zope.paste/)?  I think that's
> what Jim Washington has used.

Ahh, thanks, I'll take a look.

Jeff Shell

More information about the Zope3-users mailing list