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 {{ data }} is in JSON format, how do you implement this in a graph such as http://bl.ocks.org/3885304 or http://bl.ocks.org/3887051 ? I’m trying to avoid always writing a .csv file.

Answer 1

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')