def edit(request, cid=None):
if cid:
chart = get_object_or_404(Chart, pk=cid)
else:
chart = Chart(name='blank_chart',
data='1,2,3,4,5',
chart_instructions="""
chart Line dataset1 encoding=text
size 300 300
scale 0 5
endchart""")
chart.save()
data = ''
scale = ''
ns = {}
if 'save_chart' in request.POST:
ds, chartimg = interp(request.POST['data'], request.POST['inst'])
ns['inst'] = request.POST['inst']
ns['data'] = '\r\n'.join([','.join(map(str, d)) for d in ds.values()])
ns['chartimg'] = chartimg
chart.data = request.POST['data']
chart.chart_instructions = ns['inst']
chart.save()
return HttpResponse('<a href="/view/%d/">%s</a>' %
(chart.id, ns['chartimg']))
else:
ns['data'] = chart.data
ns['inst'] = chart.chart_instructions
ds, ns['chartimg'] = interp(chart.data, chart.chart_instructions)
ns['chart'] = chart
return render_to_response('charts/edit.html', ns)
