def calc_cri_simple(request):
"""Calculates simple CRI dosages based on weight.
GET parameters:
weight: weight in kgs
Context:
rx: calculated dosages rounded to 3 decimal places
"""
meds = CRI.objects.filter(calc_type='ez')
form = CRISimpleForm()
rx = dict()
bolus = dict()
# zipped list of rates to dosage with default displayed dosages of 0.0 mL
for med in meds:
rx[med] = list(zip([rate for rate in med.rates],
[0.0 * rate for rate in med.rates]))
if request.method == 'GET' and request.is_ajax():
form = CRISimpleForm(data=request.GET)
if form.is_valid():
weight = float(request.GET['weight'])
for med in meds:
rx[med] = list(zip([rate for rate in med.rates],
[round(weight * med.factor * rate, 3) for rate in med.rates]))
# bolus is calculated for diltiazem
bolus = {'mg': round(weight * 0.25, 3), 'mL': round(weight * 0.05, 3)}
return render(request, 'calc/cri_simple.html', {'navbar': 'calc',
'form': form,
'rx': rx,
'bolus': bolus})
def test_form_rejects_empty_string(self):
form = CRISimpleForm(data={'weight': ''})
self.assertFalse(form.is_valid())
def test_form_rejects_non_numeric_input(self):
form = CRISimpleForm(data={'weight': 'a string'})
self.assertFalse(form.is_valid())
self.assertEqual(form.errors['weight'], [INVALID_INPUT_ERROR])