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Python Django Forms Forms Create a Validator

Posted by Josh Stephens
Josh Stephens
13,529 Points

Validation Function for not_treehouse does not pass challenge task 1 of 2 (Series: Django Forms)

For some reason I can't seem to get this to pass. I have tried a few methods but so far I can't seem to get this to pass. Only thing I can think of is that it doesn't check for if someone is passing in a None value but the error that I am getting doesn't indicate that.

The error says that I need to make sure that I take capitalization in to consideration which I am pretty sure I have. Testing this in ipython it agrees with me. 

In [5]: not_treehouse('test@example.com')                                                                                                                                                                                                                                                                                                                                                   
Out[5]: True

In [6]: not_treehouse('test@teamtreehouse.com')                                                                                                                                                                                                                                                                                                                                             
Out[6]: False

In [7]: not_treehouse('test@teamtreehouSe.com')                                                                                                                                                                                                                                                                                                                                             
Out[7]: False

In [8]: not_treehouse('test@TeamTreehouSe.com')                                                                                                                                                                                                                                                                                                                                             
Out[8]: False

In [9]: not_treehouse('test@TeamTreehouSes.com')                                                                                                                                                                                                                                                                                                                                            
Out[9]: True

In [10]: 'test@example.com'.endswith('@example.com')                                                                                                                                                                                                                                                                                                                                        
Out[10]: True

In [11]: 'test@example.com'.endswith('@teamtreehouse.com')                                                                                                                                                                                                                                                                                                                                  
Out[11]: False

In [12]: email = 'Test.Person@ExAmpLe.com'                                                                                                                                                                                                                                                                                                                                                  

In [13]: email.lower().endswith('@example.com')                                                                                                                                                                                                                                                                                                                                             
Out[13]: True

I appreciate any advice that I can get on this.

myproject/forms.py 
from django import forms


class LeadShareForm(forms.Form):
    email = forms.EmailField()
    link = forms.URLField()
    honeypot = forms.CharField(widget=forms.HiddenInput, required=False)

    def clean_honeypot(self):
        honey = self.cleaned_data['honeypot']
        if len(honey):
            raise forms.ValidationError('Bad robot!')
        return honey

def not_treehouse(email):
    if email.lower().endswith('@teamtreehouse.com'):
        raise ValidationError('Must not use a teamtreehouse.com email address!')
Josh Stephens
Josh Stephens
13,529 Points

The exact error that I am getting is

Bummer: Make sure the validator does not allow @teamtreehouse.com email addresses, regardless of capitalization.; Make sure the validator does not allow @teamtreehouse.com email addresses.

1 Answer

Josh Stephens
Josh Stephens
13,529 Points
Josh Stephens
Josh Stephens
13,529 Points

oh geez, so I completely forgot that in order to use the ValidationError I have to use that method from the forms module. So to fix this I needed to use forms.ValidationError

def not_treehouse(email):
    if email.lower().endswith('@teamtreehouse.com'):
        raise forms.ValidationError('Must not use a teamtreehouse.com email address!')