old_contents: """ Basic models, such as user profile """
  from django.db import models
  
  class Language(models.Model):
      name = models.CharField(max_length=40, null=False)
      learn_url = models.URLField(null=True, blank=True)
  
      @staticmethod
      def all():
          return [l.name for l in Language.objects.all()]
      def __unicode__(self):
          return self.name
  
  class Repo(models.Model):
      # Full name is required
      full_name = models.CharField(max_length=30, null=False)
      url = models.URLField(null=True)
      language = models.ForeignKey(Language, related_name='repos')
      description = models.CharField(max_length=300, null=True, blank=True)
  
  
      def save(self, *args, **kwargs):
          '''Override save method to set default url.'''
          BASE = 'https://github.com/'
          # Default url to base url + full_name
          if not self.url:
              self.url = BASE + self.full_name
          super(Repo, self).save(*args, **kwargs)
  
  
      def __unicode__(self):
          return "{full_name}: {language}".format(full_name=self.full_name,
                                                  language=self.language.name)
  
  
  
new_contents: """ Basic models, such as user profile """
  from django.db import models
  
  class Language(models.Model):
      name = models.CharField(max_length=40, null=False)
      learn_url = models.URLField(null=True, blank=True)
  
      @staticmethod
      def all():
          return [l.name for l in Language.objects.all()]
      def __unicode__(self):
          return self.name
  
  class Repo(models.Model):
      # Full name is required
      full_name = models.CharField(max_length=300, null=False)
      url = models.URLField(null=True)
      language = models.ForeignKey(Language, related_name='repos')
      description = models.CharField(max_length=500, null=True, blank=True)
  
  
      def save(self, *args, **kwargs):
          '''Override save method to set default url.'''
          BASE = 'https://github.com/'
          # Default url to base url + full_name
          if not self.url:
              self.url = BASE + self.full_name
          super(Repo, self).save(*args, **kwargs)
  
  
      def __unicode__(self):
          return "{full_name}: {language}".format(full_name=self.full_name,
                                                  language=self.language.name)
  
  
  
subject: Increase max length for repo names