Model strings

buyer/models.py

@@ -6,3 +6,6 @@ class Card(models.Model):
     number = models.IntegerField("Card number", primary_key=True)
     purchased = models.DateTimeField("Card purchased", auto_now_add=True)
     delivered = models.DateTimeField("Card delivered to Oma", default=None, null=True)
+
+    def __str__(self):
+        return str(self.number)

dbsettings/models.py

@@ -5,3 +5,6 @@ from django.db import models
 class Setting(models.Model):
     key = models.CharField(primary_key=True, max_length=512)
     value = models.CharField(max_length=512)
+
+    def __str__(self):
+        return self.key

ledger/models.py

@@ -7,3 +7,6 @@ class Payment(models.Model):
     amount = models.DecimalField("Payment amount", max_digits=15, decimal_places=2)
     date = models.DateTimeField("Date of payment", auto_now_add=True)
     repayment = models.DateTimeField("Date of repayment", default=None, null=True)
+
+    def __str__(self):
+        return self.description