Hi group,
It´s possible that I can´t to explain yours very well my problem because
it´s a complex problem (I think it) and my english is too poor but I´m going
to try to do it.
I´ve a problem and I´m not sure if create a middleware class is a good
solution. I´ve one class that represents a set of data called DataSet, and
some of my views have one dict with values that could be a DataModel, so my
urls.py is like this:
urls.py
-----------
from app.data import DataSet
data_dict = {
´key1´ : DataSet(listValues),
´key2´ : DataSet(otherListValues),
}
(r'^$','app.views.index', data_dict),
On the other hand I´ve some templatetags which know how render this class
(DataSet), and they include a links (which send parameters through GET
method to url in app.views.index view) to modify some aspects about the
dataSet (for example to filter data).
The main topic is that I want that this will be reusable and I want that the
app.views.index' view (and future views that will use a DataSet and
templatetags) can´t know how to process the parameters that the links
include (by GET method) and have not to do anything on data_dict, so this
work has to be transparent to the view, so I´m thinking to do a middleware
class wich manages this kind of parameters and setup the appropiate dataSet.
My middleware class, for example in process_view(*self*, *request*, *
view_func*, *view_args*, *view_kwargs*) could check if kargs have some value
that could be a DataSet instance and if it´s true the middleware class start
to process parameters to manage one DataSet. I´ve to say too, that depends
on one parameter it´s possible that the Response change because I´m thinking
to export the DataSet to CSV or PDF format.
Sorry and I hope that you can understand my english and my problem ;).
Thanks!
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