Hey there. I'm working through Part I of the "Writing your first Django
app" tutorial and everything was going smoothly until I tried executing the
following command:
>>> p.choice_set.all()
When I try running it I get the proceeding errors (below). I've attached my
models.py file for context. Any help or guidance would be much appreciated.
Traceback (most recent call last):
File "<console>", line 1, in <module>
File
"/home/hugodev/dev/lib/python2.7/site-packages/django/db/models/query.py",
line 72, in __repr__
data = list(self[:REPR_OUTPUT_SIZE + 1])
File
"/home/hugodev/dev/lib/python2.7/site-packages/django/db/models/query.py",
line 87, in __len__
self._result_cache.extend(self._iter)
File
"/home/hugodev/dev/lib/python2.7/site-packages/django/db/models/query.py",
line 291, in iterator
for row in compiler.results_iter():
File
"/home/hugodev/dev/lib/python2.7/site-packages/django/db/models/sql/compiler.py",
line 763, in results_iter
for rows in self.execute_sql(MULTI):
File
"/home/hugodev/dev/lib/python2.7/site-packages/django/db/models/sql/compiler.py",
line 818, in execute_sql
cursor.execute(sql, params)
File
"/home/hugodev/dev/lib/python2.7/site-packages/django/db/backends/util.py",
line 40, in execute
return self.cursor.execute(sql, params)
File
"/home/hugodev/dev/lib/python2.7/site-packages/django/db/backends/mysql/base.py",
line 114, in execute
return self.cursor.execute(query, args)
File "/home/hugodev/dev/lib/python2.7/site-packages/MySQLdb/cursors.py",
line 201, in execute
self.errorhandler(self, exc, value)
File
"/home/hugodev/dev/lib/python2.7/site-packages/MySQLdb/connections.py",
line 36, in defaulterrorhandler
raise errorclass, errorvalue
DatabaseError: (1054, "Unknown column 'polls_choice.choice_text' in 'field
list'")
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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
