I have a (old) Model like this:
------------------------------------------------
class SessionData(models.Model):
session_id = models.CharField(maxlength=96)
expiry_time = models.DateTimeField()
ip = models.CharField(maxlength=45)
domain_name = models.CharField(maxlength=150)
session_data = models.TextField()
class Admin:
pass
class Meta:
db_table = '%ssession_data' % TABLE_PREFIX
verbose_name_plural = 'Session Data'
------------------------------------------------
the i make this:
------------------------------------------------
from django.core.management import dump_data
print dump_data(app_labels=[])
------------------------------------------------
and i get this traceback:
------------------------------------------------
Traceback (most recent call last):
File "<stdin>", line 2, in ?
File "/home/jens/servershare/SVN/SVN
PyLucid/branches/0.8(django)/django/core/management.py", line 1438, in
dump_data
objects.extend(model.objects.all())
File "/home/jens/servershare/SVN/SVN
PyLucid/branches/0.8(django)/django/db/models/query.py", line 108, in
__iter__
return iter(self._get_data())
File "/home/jens/servershare/SVN/SVN
PyLucid/branches/0.8(django)/django/db/models/query.py", line 468, in
_get_data
self._result_cache = list(self.iterator())
File "/home/jens/servershare/SVN/SVN
PyLucid/branches/0.8(django)/django/db/models/query.py", line 181, in
iterator
cursor.execute("SELECT " + (self._distinct and "DISTINCT " or "") +
",".join(select) + sql, params)
File "/home/jens/servershare/SVN/SVN
PyLucid/branches/0.8(django)/django/db/backends/util.py", line 12, in
execute
return self.cursor.execute(sql, params)
File "/home/jens/servershare/SVN/SVN
PyLucid/branches/0.8(django)/django/db/backends/mysql/base.py", line 42,
in execute
return self.cursor.execute(sql, params)
File "/usr/lib/python2.4/site-packages/MySQLdb/cursors.py", line 163,
in execute
self.errorhandler(self, exc, value)
File "/usr/lib/python2.4/site-packages/MySQLdb/connections.py", line
35, in defaulterrorhandler
raise errorclass, errorvalue
OperationalError: (1054, "Unknown column 'pylucid_session_data.id' in
'field list'")
------------------------------------------------
Yes, there is no column "id" for the table "pylucid_session_data".
Is that an error? Or must all tables have an ID? (or primary key?)
I have made a small patch, so the table skipped:
Index: ./django/core/management.py
===================================================================
--- ./django/core/management.py (revision 4692)
+++ ./django/core/management.py (working copy)
@@ -1434,7 +1434,10 @@
objects = []
for app in app_list:
for model in get_models(app):
- objects.extend(model.objects.all())
+ try:
+ objects.extend(model.objects.all())
+ except Exception, e:
+ sys.stderr.write(style.ERROR("unable to get data: %s\n"
% e))
try:
print serializers.serialize(format, objects, indent=indent)
except Exception, e:
--
Mfg.
Jens Diemer
----
CMS in pure Python CGI: http://www.pylucid.org
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