Hi list,

Does anyone have example code of tw.jquery.FlotWidget working with the
versions listed? I only seem to be getting blank pieces of canvas
being rendered on my pages.

I have this in my controller:
...
from tw.jquery import FlotWidget
fw = FlotWidget()
tmpl_context.graphic = fw
...

In my template:
tmpl_context.graphic(data=data)

Here is a paste of the output from the rendered webpage sans a pretty chart.

http://paste.turbogears.org/paste/39329

Using ToscaWidgets-0.9.4 too.

Thanks, Andrew

Hi,

With further investigation and editing the output of the rendered
template as a static page and trying to get that to work...

It seems that tw.core.js is escaping the id of the widget and this is
breaking tw.jquery.FlotWidget

Here is a snippet from tw.core.js that shows the escaping behaviour of
the id selector as per the paste above.

class TWEncoder(simplejson.encoder.JSONEncoder):
    """A JSON encoder that can encode Widgets, js_calls, js_symbols and
    js_callbacks.

    Example::

        >>> encode = TWEncoder().encode
        >>> print encode({'onLoad':
js_function("do_something")(js_symbol("this"))})
        {"onLoad": do_something(this)}

        >>> from tw.api import Widget
        >>> w = Widget("foo")
        >>> args = {'onLoad':
js_callback(js_function('jQuery')(w).click(js_symbol('onClick')))}
        >>> print encode(args)
        {"onLoad": function(){jQuery(\\"foo\\").click(onClick)}}
        >>> print encode({'args':args})
        {"args": {"onLoad": function(){jQuery(\\"foo\\").click(onClick)}}}

Although I now know what the problem is, I haven't a clue where to
begin to fix it...

Hi,

Ok, I hacked and got a chart...

2009/3/21 Andrew Basson <andrew.bas...@gmail.com>:

Ok, so I hacked __get_js_repr on _js_call and put in a replace as per below.

class _js_call(object):
    __slots__ = ('__name', '__call_list', '__args', '__called')

    def __init__(self, name, call_list, args=None, called=False):
        self.__name = name
        self.__args = args
        call_list.append(self)
        self.__call_list = call_list
        self.__called = called

    def __getattr__(self, name):
        return self.__class__(name, self.__call_list)

    def __call__(self, *args):
        self.__args = args
        self.__called = True
        return self

    def __get_js_repr(self):
        if self.__called:
            args = self.__args
            return '%s(%s)' % (self.__name, ', '.join(imap(encode,
args)).replace('\\',''))
        else:
            return self.__name

Don't know what else will break, but for now I'm happy to fall into
bed knowing I can finally produce a chart.

Cheers, Andrew.