1 files changed, 9 insertions, 8 deletions
diff --git a/expo/models_survex.py b/expo/models_survex.py
index b00cf1b..29944d8 100644
--- a/expo/models_survex.py
+++ b/expo/models_survex.py
@@ -1,15 +1,16 @@
 from django.db import models
 
 class SurvexBlock(models.Model):
-    name = models.CharField(max_length=100)
+    name = models.CharField(max_length=100, blank=True, null=True)
+    parent = models.ForeignKey('SurvexBlock', blank=True, null=True)
     text = models.TextField()
-    notes_person = models.ManyToManyField('PersonTrip', related_name="notes")
-    pics_person = models.ManyToManyField('PersonTrip', related_name="pics")
-    tape_person = models.ManyToManyField('PersonTrip', related_name="tape")
-    insts_person = models.ManyToManyField('PersonTrip', related_name="insts")
+    notes_person = models.ManyToManyField('PersonTrip', related_name="notes", blank=True, null=True)
+    pics_person = models.ManyToManyField('PersonTrip', related_name="pics", blank=True, null=True)
+    tape_person = models.ManyToManyField('PersonTrip', related_name="tape", blank=True, null=True)
+    insts_person = models.ManyToManyField('PersonTrip', related_name="insts", blank=True, null=True)
     begin_file = models.CharField(max_length=200)
     begin_char = models.IntegerField()
-    end_file = models.CharField(max_length=200)
-    end_char = models.IntegerField()
+    end_file = models.CharField(max_length=200, blank=True, null=True)
+    end_char = models.IntegerField(blank=True, null=True)
     def __unicode__(self):
-        return unicode(name)
+        return unicode(self.name)