Adding an extra variable to a column in django-tables2 - django

Question

Trying to build a Django (1.4) site that has some pages that can be either loaded in a popup or not. Some of these pages contain a listview, implemented in Django-tables2
When a page is loaded as a popup, an extra URL parameter is added; for example
/backoffice/popup/articlegroups/ is the same page as /backoffice/articlegroups/ , but shown as a popup.
My question is how to add this extra piece of info (popup or not) to the LinkColumns in Django-tables2, because the links to the edit-page, also need to have this information.
Django-tables2 has an accessor, which can be used to access properties in the queryset, but I need to add an extra piece of data, outside of the queryset. I have seen that adding extra data to an existing dataset is tricky at best, also, that doesn't feel very clean.
I was wondering if there isn't a simple way to add extra data to the tables or columns class, I have tried looking in the table.meta class as well, but to no avail.
My code is as follows:
TABLES.PY
class ArticlegroupTable(tables.Table):
artg_name = LinkIfAuthorizedColumn(
'ArticlegroupUpdate',
args=["popup", A('pk')],
edit_perm="articles.maintenance",
)
This ofcourse works, but it is adding the "popup" arugument as a fixed string as you can see...
class ArticlegroupTable(tables.Table):
artg_name = LinkIfAuthorizedColumn(
'ArticlegroupUpdate',
args=[A('popup'), A('pk')],
edit_perm="articles.maintenance",
)
This does not work, because there isn't a "popup" property in the queryset...
VIEWS.PY
def get_context_data(self, ** kwargs):
# get context data to be passed to the respective templates
context = super(ArticlegroupSearch, self).get_context_data(**kwargs)
data = self.get_queryset()
table = ArticlegroupTable(data, self.request)
RequestConfig(self.request, paginate={
"per_page": 5,
}).configure(table)
context.update({'table': table})
if 'popup' in self.kwargs:
context.update({'popup': self.kwargs['popup']})
return context
It seems that this is not a very far-fetched scenario (adding a URL parameter to a table/column in tables2), so I was wondering if anyone knows of a simple way to do so.
Thanks,
Erik

Answer 1

If you're after a quick hack, just implement the table's __init__ method and add the popup arg to the LinkColumns dynamically:
class ArticlegroupTable(tables.Table):
def __init__(self, *args, **kwargs):
if kwargs.pop("popup", False):
for column in self.base_columns.values():
if isinstance(column, tables.LinkColumn):
column.args.insert(0, "popup")
super(Table, self).__init__(*args, **kwargs)
# …
Then in your view pass in a popup argument:
def get_context_data(self, ** kwargs):
# get context data to be passed to the respective templates
context = super(ArticlegroupSearch, self).get_context_data(**kwargs)
data = self.get_queryset()
popup = self.kwargs.get('popup')
table = ArticlegroupTable(data, self.request, popup=popup)
RequestConfig(self.request, paginate={
"per_page": 5,
}).configure(table)
context.update({'table': table, 'popup': popup})
return context