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Validate form field that include email or emails separated by 'token' kwargs, by default ',' a comma. Return a list [] of email(s). Check validity of the email(s) from django EmailField regex (work with 1.6)
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from django import forms | |
from django.utils.translation import ugettext_lazy as _ | |
from django.core import validators | |
from django.core.validators import EMPTY_VALUES | |
from django.forms.fields import Field | |
# Same as https://djangosnippets.org/snippets/3012/ but compatible with Django 1.6 | |
class CommaSeparatedEmailField(Field): | |
description = _(u"E-mail address(es)") | |
def __init__(self, *args, **kwargs): | |
self.token = kwargs.pop("token", ",") | |
super(CommaSeparatedEmailField, self).__init__(*args, **kwargs) | |
def to_python(self, value): | |
if value in EMPTY_VALUES: | |
return [] | |
value = [item.strip() for item in value.split(self.token) if item.strip()] | |
return list(set(value)) | |
def clean(self, value): | |
""" | |
Check that the field contains one or more 'comma-separated' emails | |
and normalizes the data to a list of the email strings. | |
""" | |
value = self.to_python(value) | |
if value in EMPTY_VALUES and self.required: | |
raise forms.ValidationError(_(u"This field is required.")) | |
for email in value: | |
validators.validate_email(email) | |
return value |
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