OK, so I numptied the constructor but ultimately I do want to fill from the DB. Anyway, I've removed the __init__ and fixed some minor HTML syntax and then the next error did look like it was about Tosca Widgets. "WidgetLocked:...It's unthread-safe to alter it's attributes after initialisation."
I read somewhere that widgets are stateless and can be shared between threads and I might well be wanting to do that. So I put the inject call in the __init__ of my form. I'd had test_pic.title="The Plot" in my controller, so clearly I'd lost the plot ;-) Reading the address book example, I see that we no longer have to return a dict but can just go 'pylons.c.something = something' and my form will be available in my template as 'templ_context.something'. Well and good, it seems that a consensus _may_ be emerging on 'passing tw forms to templates' --see http://groups.google.com/group/turbogears-trunk/browse_thread/thread/fdff4064fdf809b1 But where does this magical templ_context come from? I gather it's a TG thing and is the same as pylons.c but what's the "one-- and preferably only one --obvious way" to inject JS resources? Am I close to having done it correctly yet? In /templates I now have... =========================== <h1>The Plot</h1> <br/> <div id="testUpdating" style="width: 300px; height: 300px;"> This text will be replaced by a chart, I hope... </div> <p>${templ_context.test_pic()}</p> In /widgets I have... ===================== class TestPic(TableForm): template = "pkg.templates.pic.html" #js = [JSLink(link=url('/public/js/chart.js'))] #gav Hmmm, not so sure where to do this class fields(WidgetsList): id = TextField() title = TextField() fig = TextArea() def __init__(self, template): JSLink(link=url('/public/js/chart.js')).inject() #gav But how do these two lines join up? inject_resources(template) In my controller method in root.py I have ... ============================================= @expose("pkg.templates.pic") def pic(self, **kwargs): """ This is where we attach the form to pylons.c.something and whatever you attach will be available in the template as tmpl_context.something """ pylons.c.test_pic = test_pic return dict(wikipage='pic') But templ_context.test_pic is not available. :-( "UndefinedError: "templ_context" not defined" ... Module genshi.template.base:520 in _eval view Module genshi.template.base:286 in _eval_expr view Module genshi.template.eval:180 in evaluate view Module ?:25 in <Expression u'templ_context.test_pic()'> view << --><!-- OK, addressbook way - I have a form called test_pic...--> <p>${templ_context.test_pic()}</p> </body> </html> >> <p>${templ_context.test_pic()}</p> Module genshi.template.eval:306 in lookup_name view Module genshi.template.eval:405 in undefined view UndefinedError: "templ_context" not defined I've tried importing both templ_context and pylons.c in root.py and in the widget module. Where should it be imported as what? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "TurboGears" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/turbogears?hl=en -~----------~----~----~----~------~----~------~--~---
