old_contents: from __future__ import unicode_literals
  
  from django.db import models
  from django.utils.encoding import python_2_unicode_compatible
  from django.utils.translation import ugettext_lazy as _
  from django.contrib.auth.models import AbstractUser
  from django.conf import settings
  
  
  from uuidfield import UUIDField
  
  
  class UuidMixin(models.Model):
      """
      Mixin to identify models by UUID.
      """
      class Meta(object):
          abstract = True
  
      uuid = UUIDField(auto=True, unique=True)
  
  
  class User(UuidMixin, AbstractUser):
      alternative_name = models.CharField(_('alternative name'), max_length=40, blank=True)
      civil_number = models.CharField(_('civil number'), max_length=40, blank=True)
      phone_number = models.CharField(_('phone number'), max_length=40, blank=True)
      description = models.TextField(_('description'), blank=True)
      organization = models.CharField(_('organization'),  max_length=80,  blank=True)
      job_title = models.CharField(_('job title'), max_length=40, blank=True)
  
  @python_2_unicode_compatible
  class SshPublicKey(UuidMixin, models.Model):
      """
      User public key.
  
      Used for injection into VMs for remote access. 
      """
      user = models.ForeignKey(settings.AUTH_USER_MODEL, db_index=True)
      name = models.CharField(max_length=50, blank=True)
      public_key = models.TextField(max_length=2000)
  
      def __str__(self):
          return self.name
  
new_contents: from __future__ import unicode_literals
  
  from django.db import models
  from django.utils.encoding import python_2_unicode_compatible
  from django.utils.translation import ugettext_lazy as _
  from django.contrib.auth.models import AbstractUser
  from django.conf import settings
  
  
  from uuidfield import UUIDField
  
  
  class UuidMixin(models.Model):
      """
      Mixin to identify models by UUID.
      """
      class Meta(object):
          abstract = True
  
      uuid = UUIDField(auto=True, unique=True)
  
  
  class User(UuidMixin, AbstractUser):
      alternative_name = models.CharField(_('alternative name'), max_length=60, blank=True)
      civil_number = models.CharField(_('civil number'), max_length=40, blank=True)
      phone_number = models.CharField(_('phone number'), max_length=40, blank=True)
      description = models.TextField(_('description'), blank=True)
      organization = models.CharField(_('organization'),  max_length=80,  blank=True)
      job_title = models.CharField(_('job title'), max_length=40, blank=True)
  
  
  @python_2_unicode_compatible
  class SshPublicKey(UuidMixin, models.Model):
      """
      User public key.
  
      Used for injection into VMs for remote access. 
      """
      user = models.ForeignKey(settings.AUTH_USER_MODEL, db_index=True)
      name = models.CharField(max_length=50, blank=True)
      public_key = models.TextField(max_length=2000)
  
      def __str__(self):
          return self.name
  
subject: Increase size of the alternative field