How to work with modelform and multiwidget

Question

New to everyone! I am working on displaying a phone field displayed as (xxx) xxx-xxxx at the front end. Below is my code. My question is: 1. all fields are required, for some reason the phone does not behave as expected. Even if it is left blank, it does not complain and 2. can I test this widget functionality.

class USPhoneNumberWidget(forms.MultiWidget): def __init__(self,attrs=None): widgets = (forms.TextInput(attrs={'size':'3','maxlength':'3'}),forms.TextInput(attrs={'size':'3','maxlength':'3'}),forms.TextInput(attrs={'size':'3','maxlength':'4'})) super(USPhoneNumberWidget,self).__init__(widgets,attrs=attrs) def decompress(self, value): if value: val = value.split('-') return [val[0],val[1],val[2]] return [None,None,None] def compress(self, data_list): if data_list[0] and data_list[1] and data_list[2]: ph1 = self.check_value(data_list[0]) ph2 = self.check_value(data_list[1]) ph3 = self.check_value(data_list[2]) return '%s''%s''%s' %(ph1,ph2,ph3) else: return None def check_value(self,val): try: if val.isdigit(): return val except: raise forms.ValidationError('This Field has to be a number!') def clean(self, value): try: value = re.sub('(\(|\)|\s+)','',smart_unicode(value)) m = phone_digits_re.search(value) if m: return u'%s%s%s' % (m.group(1),m.group(2),m.group(3)) except: raise ValidationError('Phone Number is required.') def value_from_datadict(self,data,files,name): val_list = [widget.value_from_datadict(data,files,name+'_%s' %i) for i,widget in enumerate(self.widgets)] try: return val_list except ValueError: return '' def format_output(self,rendered_widgets): return '('+rendered_widgets[0]+')'+rendered_widgets[1]+'-'+rendered_widgets[2] class CustomerForm(ModelForm): phone = forms.CharField(required=True,widget=USPhoneNumberWidget()) class Meta: model = Customer fields = ('fname','lname','address1','address2','city','state','zipcode','phone') 

In the models blank and null are not true. Any input he praised. thanks

Answer 1

Here is the phone box:

 phone = forms.CharField(label = 'Phone',widget=USPhoneNumberWidget() class USPhoneNumberWidget(forms.MultiWidget): """ A widget that splits phone number into areacode/next3/last4 with textinput. """ def __init__(self,attrs=None): widgets = (forms.TextInput(attrs={'size':'3','maxlength':'3'}),forms.TextInput(attrs={'size':'3','maxlength':'3'}),forms.TextInput(attrs={'size':'4','maxlength':'4'})) super(USPhoneNumberWidget,self).__init__(widgets,attrs=attrs) def decompress(self, value): if value: val = value return val[:3],val[3:6],val[6:] return None,None,None def compress(self, data_list): if data_list[0] and data_list[1] and data_list[2]: return '%s''%s''%s' %(data_list[0],data_list[1],data_list[2]) else: return None def value_from_datadict(self,data,files,name): val_list = [widget.value_from_datadict(data,files,name+'_%s' %i) for i,widget in enumerate(self.widgets)] if val_list: return '%s''%s''%s' %(val_list[0],val_list[1],val_list[2]) def format_output(self,rendered_widgets): return '( '+rendered_widgets[0]+' )'+rendered_widgets[1]+' - '+rendered_widgets[2] 

But depending on how you store the phone # in the db 'return' line, you need to change. here I accept it as (xxx) -xxx-xxxx format.In compression gets ph_0 (areacode), ph_1 (next 3), ph_2 (last4) in that order. But I keep it as xxxxxxxxxx.

Firebug helped me better understand what return values ​​should be. I will update the answer when I find out how to test.