+
−"""
+
−15. Transactions
+
−
+
−Django handles transactions in three different ways. The default is to commit
+
−each transaction upon a write, but you can decorate a function to get
+
−commit-on-success behavior. Alternatively, you can manage the transaction
+
−manually.
+
−"""
+
−
+
−from django.db import models, DEFAULT_DB_ALIAS
+
−
+
−class Reporter(models.Model):
+
−    first_name = models.CharField(max_length=30)
+
−    last_name = models.CharField(max_length=30)
+
−    email = models.EmailField()
+
−
+
−    class Meta:
+
−        ordering = ('first_name', 'last_name')
+
−
+
−    def __unicode__(self):
+
−        return u"%s %s" % (self.first_name, self.last_name)