Hi,
I was wondering what the best approach to BrowserViews is for 3rd
party developers of Plone Products.
I saw some discussion on lists, but could not find a definitive
answer, if there is one.
The main differences I am aware of are the security and the use of
context, both of which have to do with Acquisition.
Inherit from object
-------------------
class MyView(object):
def __init__(self, context, request):
self.context = context
self.request = request
The view is not Acquisition wrapped, which means that any permission
you set in the configure.zcml is ignored and everyone can see this
view, right?
You define your own __init__() so you can handle the context anyway you
please.
Inherit from Five
-----------------
from Products.Five.browser import BrowserView
class MyView(BrowserView):
The view is Acquisition wrapped, so Zope security kicks in, which is
probably good.
If you do not overwrite the __init__() you can use the context with
self.context.
Inherit from Plone
------------------
from Products.CMFPlone import utils
class MyView(utils.BrowserView):
Acquisition wrapped, same as Five.
But in the __init__() of this BrowserView there is the line:
self.context = [context]
So you cannot use self.context in your code like you would do in the
other cases, but you have to use this:
context = utils.context(self)
This is the only thing that is different from the Five BrowserView.
All the browser views in CMFPlone/browser use this.
Should developers of Plone products in the collective care about this?
Is it better that everyone uses this BrowserView from CMFPlone.utils?
I am still looking at product compatibility with Plone 2.5. Would the
recommendation be different with Plone 3.0?
Thanks,
--
Maurits van Rees | http://maurits.vanrees.org/ [NL]
Work | http://zestsoftware.nl/
"Do not worry about your difficulties in computers,
I can assure you mine are still greater."
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