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django_try/mysite/poll/models.py

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+from django.db import models
+import datetime
+from django.utils import timezone
+
+# Create your models here.
+class Poll(models.Model):
+    question=models.CharField(max_length=200)
+    pub_date=models.DateTimeField("date published")
+
+    def __unicode__(self):
+        return self.question
+
+    def was_published_recently(self):
+        return self.pub_date>=timezone.now()-datetime.timedelta(days=1)
+
+class Choice(models.Model):
+    poll=models.ForeignKey(Poll)
+    choice_text=models.CharField(max_length=200)
+    votes=models.IntegerField(default=0)
+    def __unicode__(self):
+        return self.choice_text