old_contents: from django.db import models
  from django.contrib.auth.models import User
  
  # Create your models here.
  class Order(models.Model):
      user = models.ForeignKey(User)
      # Last updated timestamp, used for sorting
      date = models.DateTimeField(auto_now_add=True, auto_now=True)
      # When we will strike
      striketime = models.DateTimeField(null=True)
      message = models.TextField()
      subject = models.CharField(max_length=250)
      # Coordinates of where this news applies
      # By default, set it to the middle of the map
      x = models.IntegerField(default=50)
      y = models.IntegerField(default=50)
  
      def __unicode__(self):
          return self.subject
  
new_contents: from django.db import models
  from django.contrib.auth.models import User
  
  # Create your models here.
  class Order(models.Model):
      user = models.ForeignKey(User)
      # Last updated timestamp, used for sorting
      date = models.DateTimeField(auto_now_add=True, auto_now=True)
      # When we will strike
      striketime = models.DateTimeField(null=True, blank=True)
      message = models.TextField()
      subject = models.CharField(max_length=250)
      # Coordinates of where this news applies
      # By default, set it to the middle of the map
      x = models.IntegerField(default=50)
      y = models.IntegerField(default=50)
  
      def __unicode__(self):
          return self.subject
  
subject: Allow strike time to be blank.