def calc_injection(request):
"""Calculates injection dosages based on weight.
GET parameters:
weight: weight in lbs
Contxt:
calculated dose rounded to 3 decimal places
"""
meds = Injection.objects.all()
rx = dict()
# default displayed dosage of 0.0 mLs
for med in meds:
rx[med] = 0.0
rx_ordered = OrderedDict(sorted(rx.items(), key=lambda t: t[0].name))
if request.method == 'GET' and request.is_ajax():
form = CalcInjForm(data=request.GET)
if form.is_valid():
weight = float(request.GET['weight'])
for med in meds:
rx_ordered[med] = round(med.factor * weight, 3)
return render(request, 'calc/injection.html', {'rx': rx_ordered,
'form': CalcInjForm(),
'navbar': 'calc'})
def test_form_rejects_non_numeric_input(self):
form = CalcInjForm(data={'weight': 'a string'})
self.assertFalse(form.is_valid())
self.assertEqual(form.errors['weight'], [INVALID_INPUT_ERROR])
def test_form_rejects_empty_string(self):
form = CalcInjForm(data={'weight': ''})
self.assertFalse(form.is_valid())
