I am trying to develop a web interface in Django which manages email
lists. In one table, ListEntry, I have entries containing information
about lists. In another table, OwnerEntry, I have information about list
owners. Each entry in the OwnerEntry table has the username of a list
owner, and a ForeignKey to the list that owner administrates. An owner can
administrate multiple lists meaning that there could be entries in the
OwnerEntry table with the same owner name but different ForeignKeys
pertaining to different lists.
Here is models.py:
class ListEntry(models.Model):
name = models.CharField(max_length=64)
date = models.DateTimeField('date created')
class Meta:
ordering = ('name',)
class OwnerEntry(models.Model):
name = models.CharField(max_length=32)
list = models.ForeignKey(ListEntry)
class Meta:
ordering = ('name',)
I am trying to test this setup out in the shell and initiallize my local
database with the following code:
from list_app.models import *
from datetime import *
le1 = ListEntry(
name = "Physics 211 email list",
date = datetime.now(),
)
le1.save()
le2 = ListEntry(
name = "Physics 265 email list",
date = datetime(2014,1,1),
)
le2.save()
oe1 = OwnerEntry(
name = 'wasingej',
list = le1,
)
oe1.save()
oe2 = OwnerEntry(
name = 'wasingej',
list = le2,
)
oe2.save()
oe3 = OwnerEntry(
name = 'doej',
list = le2,
)
oe3.save()
When I go to grab information about the list with 'l =
OwnerEntry(name='wasingej')', intuition would tell me that 'l' would be a
list of entries with the name 'wasingej'. However, when I try to access
the value of 'l.list' django gives me this:
Traceback (most recent call last):
File "<console>", line 1, in <module>
File
"/usr/local/lib/python2.7/dist-packages/django/db/models/fields/related.py",
line 324, in __get__
"%s has no %s." % (self.field.model.__name__, self.field.name))
DoesNotExist: OwnerEntry has no list.
What am I doing wrong here?
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