Direct data input from Django for a D3 graph

Question

It seems all the D3 example graphs take an external .csv or .tsv file as input data. Is there any way to modify the code to take data from a variable in Django. Suppose {{ d

Answer 1

Instead of loading data asynchronously (ajax-style), you can use correctly formatted JSON in a string passed to your template tag variable and |safed.

Check out the working example http://bl.ocks.org/4040034 which is based on http://bl.ocks.org/3885304

You should also check out the related questions on SO, there are tons on the subject.

Answer 2

You can always make a view which will serve dynamic csv file which will be consumed by D3. This way will also allow users to download the data in case they need the raw data instead of a graph.

def foo(request, ...):
    model = get_object_or_404(Foo, ...)
    data = model.get_data() # should return csv formatted string
    return HttpResponse(data, content_type='text/csv')