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Fixed a migration bug when starting with a clean database.

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This commit is contained in:
Griatch 2011-04-21 20:44:45 +00:00
parent 6f0d21802b
commit 7dc4901ccc
1 changed files with 16 additions and 11 deletions
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27
src/server/migrations/0002_fix_config_value.py
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@ -2,9 +2,10 @@
import datetime
from south.db import db
from south.v2 import DataMigration
from django.db import models
from django.db import models, utils
import pickle
class Migration(DataMigration):
def forwards(self, orm):
@ -13,16 +14,20 @@ class Migration(DataMigration):
# we are fixing a situation were the serverconfig value last_initial_setup_step was left at 1 instead of -1
# as it should (due to a bug in the setter). This causes db errors as the initial_setup thinks it needs to
# run again.
if orm['objects.ObjectDB'].objects.filter(id=1) and orm["objects.ObjectDB"].objects.filter(id=2):
# only an issue the critical objects have already been created
conf = orm.ServerConfig.objects.filter(db_key="last_initial_setup_step")
if conf:
conf = conf[0]
if pickle.loads(str(conf.db_value)) == 1:
# this shouldn't be 1 if objects already exists. This is the bug. Fix the error.
conf.db_value = pickle.dumps(-1)
conf.save()
try:
if orm['objects.ObjectDB'].objects.filter(id=1) and orm["objects.ObjectDB"].objects.filter(id=2):
# only an issue the critical objects have already been created
conf = orm.ServerConfig.objects.filter(db_key="last_initial_setup_step")
if conf:
conf = conf[0]
if pickle.loads(str(conf.db_value)) == 1:
# this shouldn't be 1 if objects already exists. This is the bug. Fix the error.
conf.db_value = pickle.dumps(-1)
conf.save()
except utils.DatabaseError:
# this will happen if we start the db from scratch (in which case this migration fix is not needed)
pass
def backwards(self, orm):