text: from django.db import models
  from django.utils import timezone
  
  # Create your models here.
  
  class Gps(models.Model):
      name = models.CharField(max_length=200)
      latitude = models.FloatField()
      longitude = models.FloatField()
      upload_date = models.DateTimeField(default = timezone.now)
  
      def __str__(self):
          return self.name
  
      def __position__(self):
          return str(self.latitude)+", "+str(self.longitude)
  
  class Beacon(models.Model):
      beacon = models.CharField(max_length=20)
      distance = models.FloatField(null=True)