Ticket #300 (closed defect: worksforme)

Opened 5 years ago

Last modified 5 years ago

Migrate Error

Reported by: anonymous Owned by: andrew
Priority: major Milestone: 0.6.3
Component: migrations Version: 0.6.2
Keywords: Cc:


Hi I get the below error when I try to migrate data. I followed the same steps in
I'm getting errors for either MyISAM or InnoDB!
All what I'm trying to do is to replace two fields and migrate their data and none of the is a foreign key!

Traceback (most recent call last):
  File "/Users/mutaz/django_projects/default_project/projectslibs/south/", line 339, in run_migrations
  File "/Users/mutaz/django_projects/default_project/barakapps/blog/migrations/", line 29, in forwards
    ('site', orm['blog.Post:site']),
  File "/Users/mutaz/django_projects/default_project/projectslibs/south/db/", line 168, in create_table
    self.execute('CREATE TABLE %s (%s);' % (qn(table_name), ', '.join([col for col in columns if col])))
  File "/Users/mutaz/django_projects/default_project/projectslibs/south/db/", line 86, in execute
    cursor.execute(sql, params)
  File "/Users/mutaz/django_projects/MMM/lib/python2.5/site-packages/Django-1.0.2_final-py2.5.egg/django/db/backends/", line 19, in execute
    return self.cursor.execute(sql, params)
  File "/Users/mutaz/django_projects/MMM/lib/python2.5/site-packages/Django-1.0.2_final-py2.5.egg/django/db/backends/mysql/", line 84, in execute
    return self.cursor.execute(query, args)
  File "build/bdist.macosx-10.5-i386/egg/MySQLdb/", line 166, in execute
    self.errorhandler(self, exc, value)
  File "build/bdist.macosx-10.5-i386/egg/MySQLdb/", line 35, in defaulterrorhandler
    raise errorclass, errorvalue
OperationalError: (1050, "Table 'blog_post' already exists")
 ! Error found during real run of migration! Aborting.

 ! Since you have a database that does not support running
 ! schema-altering statements in transactions, we have had to
 ! leave it in an interim state between migrations.

 ! You *might* be able to recover with:
   = DROP TABLE `blog_post` CASCADE; []

 ! The South developers regret this has happened, and would
 ! like to gently persuade you to consider a slightly
 ! easier-to-deal-with DBMS.
 - Sending post_syncdb signal for blog: ['Post']


Change History

comment:1 Changed 5 years ago by andrew

  • Status changed from new to closed
  • Resolution set to worksforme
  • Milestone set to 0.6.3

It looks like you have an initial migration that you made _after_ you'd used syncdb on an app; I suggest looking at ConvertingAnApp in future. In the meantime, try:

./ migrate blog --fake 0001
./ migrate

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