ob1.data schrieb:
> Hello People,
>
>
> I'm trying to inject JS resources (Dojo testUpdatingChart script) on
> the way out from the ObjectDispatchController. I've subclassed
> TableForm in a Widget to attach the javascript to. Ultimately, I want
> to animate visualisations of generated data coming out of the DB. But
> first I wanted to see some Dojo bells and whistles tacked on for wow
> factor.
>
>
> I get the following error:
>
> "TypeError: pic() takes exactly 3 arguments (1 given)"
>
> I guess this kind of error might be as common as ImportError, so may I
> present some context. Working from "front to back"...
>
>
> In /templates I 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>
> <!-- Or maybe something like this'll work...-->
> <div py:replace="tmpl_context.form(
> child_args=dict( fig = dict(id=1,
> title='Test Plot',
> fig='wijdrgpi4thaerhgoq34itwie'
> )
> )">Input Form</div>
> <!-- Or maybe I've lost The Plot -->
>
>
> In /widgets I have...
> ===============
> class TestPic(TableForm):
> template = "pkg.templates.chart.html"
> js = [JSLink(link=url('/public/js/chart.js'))]
>
> class fields(WidgetsList):
> id = TextField()
> title = TextField()
> fig = TextArea()
>
> create_test_pic = TestPic("create_test_pic")
>
>
> In my controller method in root.py I have ...
> ================================
> @expose("pkg.templates.pic")
> def pic(self, title, fig):
> tmpl_context.form = create_test_pic
> pic = DBSession.query(Pic).filter_by(title=title).one()
> pic.fig = fig
> return dict(wikipage=pic)
>
>
> If you hadn't guessed my model has in it...
> =================================
> class Pic(DeclarativeBase):
> __tablename__ = 'pic'
>
> id = Column(Integer, primary_key=True)
> title = Column(Text, unique=True)
> fig = Column(Text) #gav Column(BLOB) #Ins img here eg. gif, jpg or
> png
>
> def __init__(self, title, fig):
> self.title = title
> self.fig = fig
>
>
> So the constructor takes 3 args. OK, fine but how do they get passed
> in from the front end? Presumably the template <div... fields are
> sent in a Pylons/WebOb.request environ thingumajig and ultimately to
> my controller. Or do I have to put it in the DB first? If I do, I
> get the same kind of error on __init__. I seem to be going in circles
> here. Is there some simple, key point about the way TG passes params
> that I'm missing? The WebError Traceback seems unhelpful in this
> instance but I'll attach it at the end in case it's useful.
This has nothing todo with TG/Pylons/TW. It's solely about your model,
which you gave a constructor that's requiring a Pic-object being
constructed without always passing arguments - thus preventing a
Pic-object from being instantiated *if it already exists* and is only
supposed to be filled with DB-data.
Remove that constructor, and see how things work out.
Diez
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