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Mango / models.py

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from django.db import models

import mango.settings

if mango.settings.SUBSCRIPTIONS: # since model requires a database, define it only if required
    class Subscription(models.Model):
        subscriber_name = models.CharField(max_length=100)
        subscriber_email = models.EmailField(max_length=100)
        url = models.URLField(max_length=100)

        def __unicode__(self):
            subscriber = u'%s <%s>' % (self.subscriber_name, self.subscriber_email)
            return u' '.join((subscriber, '_' * max(1, 48 - len(subscriber)), self.url))