I'm trying to write a clean
method that validates whether 3 fields (percentages) add up to zero. I followed the django documentation and added the clean() method to my form class but Django still redirects after the form submits, indicating the is_valid() function passed successfully.
It seems like the clean
method just be called by the Django is_valid()
and not allow the form to submit...
Have checked out a similar answer but no luck.
forms.py
class RequirementsForm(forms.ModelForm):
class Meta:
model = Profile
fields = ('cal_req',
'prot_bool',
'carb_bool',
'fat_bool',
'stf_bool',
'fib_bool',
'sug_bool',
'sod_bool',
'cho_bool',
'clc_bool',
'irn_bool',
'vta_bool',
'vtc_bool',
'prot_perc',
'carb_perc',
'fat_perc',
'stf_g_thr',
'fib_g_req',
'sug_g_thr',
'sod_mg_thr',
'cho_mg_thr',# must opt-in for dietary cholesterol reqs. But default is 300 / Decimal(2000)
'clc_mg_req',
'irn_mg_req',
'vta_mcg_req',
'vtc_mg_req' )
def clean(self):
cleaned_data = super().clean()
prot_perc = cleaned_data.get('prot_perc')
fat_perc = cleaned_data.get('fat_perc')
carb_perc = cleaned_data.get('carb_perc')
if sum([prot_perc, fat_perc, carb_perc]) != 1.0:
raise forms.ValidationError(_('Macro percents must add up to 1!')_)
views.py
@login_required(login_url='/login/')
def questionaire(request):
prof, created = Profile.objects.get_or_create(user=request.user) # Careful, this clashes with the reciever in models.py
if created:
prof.save()
if request.method=='POST': # Will post requirements form
req_form = RequirementsForm(request.POST, instance=prof)
if req_form.is_valid():
req_form.save()
return HttpResponseRedirect('/')
else:
req_form = RequirementsForm(instance=prof)
context={'req_form':req_form, 'prof':prof}
return render(request, 'core/questionaire_form.html', context)
form.html
</tr>
<tr>
<th class ='type_label' colspan=6>Macronutrients</th>
</tr>
<tr>
<td class="bool_col"></td>
<td class="nm_col">Protein</td>
<td class="micro_input">
{{req_form.prot_perc}}
</td>
<td>%</td>
<td><input id="prot_g" ></input></td>
<td>{{req_form.prot_perc.errors</td>
</tr>
<tr>
<td class="bool_col"></td>
<td class="nm_col">Fat</td>
<td class="micro_input"> {{req_form.fat_perc}}</td>
<td id="unit1">%</td>
<td><input id="fat_g" ></input></td>
<td></td>
</tr>
<tr>
<td class="bool_col"></td>
<td class="nm_col">Carbohydrates</td>
<td class="micro_input"> {{req_form.carb_perc}}</td>
<td id="unit1">%</td>
<td><input id="carb_g"></input></td>
<td></td>
</tr>
This was a simple indent error. The clean function should have been indented directly below the class RequirementsForm
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