Add fields to layer model

base/models.py

@@ -1,10 +1,14 @@
 #from django.db import models
 from django.contrib.gis.db import models
-
+from django.contrib.auth.models import User, Group
+import uuid
 # Create your models here.
 
 class Layer(models.Model):
-    token = models.CharField(max_length=50)
+    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
+    name = models.CharField(max_length=50)
+    created = models.DateTimeField(auto_now_add=True)
+    owner = models.ForeignKey(Layer, on_delete=models.CASCADE, null=True)
 
 class Place(models.Model):
     lon = models.FloatField()