Form not validating django

Most validation can be done using validators - simple helpers that can be reused easily.

Validators are simple functions (or callables) that take a single argument and raise The previous sections explained how validation works in general for forms.

Char Field(max_length = 100, verbose_name =' Descripcion') usd_value = models.

Django’s form (and model) fields support use of simple utility functions and classes known as validators.

Our search example is still reasonably simple, particularly in terms of its data validation; we’re merely checking to make sure the search query isn’t empty.

Many HTML forms include a level of validation that’s more complex than making sure the value is non-empty.

Char Field(required=True) def __init__(self, *args, **kwargs): super(Cost Items Form, self).__init__(*args, **kwargs) class Meta: model = Cost Items fields = [ 'description', 'usd_value', 'rer', 'pesos_value', 'supplier', 'position', 'observations', 'validity_date', ] def clean_description(self): des = self.cleaned_data['description'] if des==None: raise Validation Error("Description cannot be empty") return des class Cost Item Insert(View): template_name='cost_control_app/home.html' def post(self, request, *args, **kwargs): if has_perm('cost_control_app.add_costitems'): form_insert = Cost Items Form(request.

POST) if form_insert.is_valid(): form_save = form_insert.save(commit = False) form_save.save(force_insert = True) messages.success(request, "Record created") else: messages.error(request, "Could not create record, please check your form") else: messages.error(request, "Permission denied") form_group = Groups Form() form_subgroup= Sub Groups Form() form_cost_item = Cost Items Form() return render(request, self.template_name,) class Cost Items(Model Audit): cost_item = models.

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