On Wed, Jun 27, 2007 at 04:59:07PM +0200, Thierry Florac wrote: > Le mercredi 27 juin 2007 à 14:31 +0200, Christophe Combelles a écrit : > > Thierry Florac a écrit : > > > I'd like to get a view output from some Python code. > > > > > > Actually, I don't have any problem if I use a page template with a > > > simple <tal:x content="structure context/@@viewname" /> expression and > > > return "self.template()" in Python. > > > But it should certainly be "cleaner" and less expensive to get view > > > output directly from Python code, which I don't actually manage to do... > > > > It depends on what you call a view, > > if this is a BrowserPage, you have a __call__ method that returns the > > output. > > so just call your view(). > > If this is a BrowserView, there is no __call__ because a BrowserView is not > > intended to be published as is. But you can have any method that returns > > HTML.
If you use getMultiAdapter to get the view, all these differences are hidden and you can call the view to get its output. > > If this is a Viewlet or a ContentProvider, there is a render method that > > returns > > the output. (provided you first call the update method) Then it's not really a view, is it? ;-) > In fact it's a little bit more complicated... > What I have at first is a BrowserPage view, which is generally called > from a page template with "context/@@viewname" syntax, without any > problem. > > But I need also to be able to get the same view output from a JSON call, > so that I can update a little bit of HTML code dynamically. I don't have > any problem when defining a template with the same syntax. But if I call > in python : > > view = zapi.getMultiAdapter((myContext,myRequest), Interface, > name=u'viewname') This should work. You don't have to pass Interface explicitly, by the way, view = getMultiAdapter((context, request), name='...') will work as well. > I receive an error message : > > __init__() takes at least 3 arguments (1 given) I don't believe you :-) Can you show the full traceback? getMultiAdapter definitely passes the context tuple to the adapter's __init__. There must be some other piece of code that fails for you. > So zapi.getMultiAdapter creates the view, but how can I initialize it > with it's required parameters (context and request) ? getMultiAdapter does that. I speak from personal experience. Marius Gedminas -- "...the only place for 63,000 bugs is a rain forest"
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