Hello all,
I try to use django-mptt, i changed my country model in order to be a
tree
class Country(models.Model):
country_name = models.CharField(max_length=30)
parent = models.ForeignKey('self', null=True, blank=True,
related_name='children')
def __unicode__(self):
return u'%s' % self.country_name
class Customer(models.Model):
name = models.CharField(max_length=30)
address = models.CharField(max_length=30)
website = models.URLField(blank=True)
country = models.ForeignKey(Country, blank=True)
def __unicode__(self):
return self.name
def get_absolute_url(self):
return "/customer/%s/" % self.name
class Meta:
ordering = ['name']
class Field(models.Model):
field_name = models.CharField(max_length=100)
customer = models.ForeignKey(Customer)
country = models.ForeignKey(Country, blank=True)
def __unicode__(self):
return self.field_name
def get_absolute_url(self):
return "/field/%s/" % self.field_name
class Meta:
ordering = ['field_name']
mptt.register(Country, order_insertion_by=['country_name'])
i synchronize the database
CREATE INDEX "coltrane_country_parent_id" ON
"coltrane_country" ("parent_id");
CREATE INDEX "coltrane_country_lft" ON "coltrane_country" ("lft");
CREATE INDEX "coltrane_country_rght" ON "coltrane_country" ("rght");
CREATE INDEX "coltrane_country_tree_id" ON
"coltrane_country" ("tree_id");
CREATE INDEX "coltrane_country_level" ON "coltrane_country" ("level");
CREATE INDEX "coltrane_customer_country_id" ON
"coltrane_customer" ("country_id");
CREATE INDEX "coltrane_field_customer_id" ON
"coltrane_field" ("customer_id");
CREATE INDEX "coltrane_field_country_id" ON
"coltrane_field" ("country_id");
i have the coltrane_country_parent_id" column in the coltrane_country
table
but when i try to access the country page in the admin page , i obtain
this traceback
Caught an exception while rendering: no such column:
coltrane_country.parent_id
Request Method: GET
Request URL: http://127.0.0.1:8000/admin/coltrane/country/
Exception Type: TemplateSyntaxError
Exception Value: Caught an exception while rendering: no such column:
coltrane_country.parent_id
Exception Location: /Library/Python/2.6/site-packages/django/template/
debug.py in render_node, line 81
It s true i don' have the coltrane_country.parent_id, but on the other
hand i have coltrane_country_parent_id.
Can any body help me.
Thanks
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