django-jython: I am getting an error when I run the migrate command on Jython-Django 1.7

C:\Users\michmar3\workspace\lwc>jython manage.py migrate
←[36;1mOperations to perform:←[0m
←[1m Apply all migrations: ←[0madmin, sessions, joins, auth, contenttypes
←[36;1mRunning migrations:←[0m
Applying joins.0003_join_ip_address...Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "C:\jython2.7b2\Lib\site-packages\django-1.7c3-py2.7.egg\django\core\mana
gement\__init__.py", line 385, in execute_from_command_line
utility.execute()
File "C:\jython2.7b2\Lib\site-packages\django-1.7c3-py2.7.egg\django\core\mana
gement\__init__.py", line 377, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\jython2.7b2\Lib\site-packages\django-1.7c3-py2.7.egg\django\core\mana
gement\base.py", line 288, in run_from_argv
self.execute(*args, **options.__dict__)
File "C:\jython2.7b2\Lib\site-packages\django-1.7c3-py2.7.egg\django\core\mana
gement\base.py", line 338, in execute
output = self.handle(*args, **options)
File "C:\jython2.7b2\Lib\site-packages\django-1.7c3-py2.7.egg\django\core\mana
gement\commands\migrate.py", line 160, in handle
executor.migrate(targets, plan, fake=options.get("fake", False))
File "C:\jython2.7b2\Lib\site-packages\django-1.7c3-py2.7.egg\django\db\migrat
ions\executor.py", line 63, in migrate
self.apply_migration(migration, fake=fake)
File "C:\jython2.7b2\Lib\site-packages\django-1.7c3-py2.7.egg\django\db\migrat
ions\executor.py", line 97, in apply_migration
migration.apply(project_state, schema_editor)
File "C:\jython2.7b2\Lib\site-packages\django-1.7c3-py2.7.egg\django\db\migrat
ions\migration.py", line 107, in apply
operation.database_forwards(self.app_label, schema_editor, project_state, ne
w_state)
File "C:\jython2.7b2\Lib\site-packages\django-1.7c3-py2.7.egg\django\db\migrat
ions\operations\fields.py", line 35, in database_forwards
schema_editor.add_field(
File "C:\jython2.7b2\Lib\site-packages\django-1.7c3-py2.7.egg\django\db\backen
ds\schema.py", line 411, in add_field
self.execute(sql, params)
File "C:\jython2.7b2\Lib\site-packages\django-1.7c3-py2.7.egg\django\db\backen
ds\schema.py", line 98, in execute
cursor.execute(sql, params)
File "C:\jython2.7b2\Lib\site-packages\django-1.7c3-py2.7.egg\django\db\backen
ds\utils.py", line 81, in execute
return super(CursorDebugWrapper, self).execute(sql, params)
File "C:\jython2.7b2\Lib\site-packages\django-1.7c3-py2.7.egg\django\db\backen
ds\utils.py", line 65, in execute
return self.cursor.execute(sql, params)
File "C:\jython2.7b2\Lib\site-packages\django-1.7c3-py2.7.egg\django\db\utils.
py", line 94, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "C:\jython2.7b2\Lib\site-packages\django-1.7c3-py2.7.egg\django\db\backen
ds\utils.py", line 65, in execute
return self.cursor.execute(sql, params)
File "C:\jython2.7b2\Lib\site-packages\django_jython-1.7.0b2-py2.7.egg\doj\db\
backends\__init__.py", line 180, in execute
self.cursor.execute(sql, params)
django.db.utils.Error: ERROR: could not determine data type of parameter $1 [SQL
Code: 0], [SQLState: 42P18]

I hoping that you can help me out. I currently have Django1.7 running on windows7/Java7/Jython2.7/Postgresql9.3/postgresql-9.3-1102.jdbc41/django_jython-1.7.0b2-py2.7.

egg

I learned today that on Django 1.7 has makemigrations and migrate commands built in. But even so when I try to apply those commands in that order I am getting some sort of error. How can I resolve this error?

For more information on django migrations. Django 1.7 Migrations

For more details about django on jython and the database settings. postgresql on jython-django

After creating a project in Django and setting it all up and have  
everything running, I began to start creating models.


What steps will reproduce the problem?
1. I first created a model in django with some fields

from django.db import models

# Create your models here.
class Join(models.Model):
     email = models.EmailField(unique=True)
     ip_address = models.CharField(max_length=

120, default="ABC")
     #auto_now means when it was added, auto_now means when it is updated
     timestamp = models.DateTimeField(auto_now_add = True, auto_now=False)
     updated = models.DateTimeField(auto_now_add = False, auto_now=True)

     def __unicode__(self):
         return "%s" %(self.email)


2. I then run jython manage.py makemigrations joins
3. I then run jython manage.py migrate joins
4. Tables are created in database
5. I forgot to add a field using modeling, so I add it see ref_id below

from django.db import models

# Create your models here.
class Join(models.Model):
     email = models.EmailField(unique=True)
     ref_id = models.CharField(max_length=120, null=True)
     ip_address = models.CharField(max_length=120, default="ABC")
     #auto_now means when it was added, auto_now means when it is updated
     timestamp = models.DateTimeField(auto_now_add = True, auto_now=False)
     updated = models.DateTimeField(auto_now_add = False, auto_now=True)

     def __unicode__(self):
         return "%s" %(self.email)


6. I then run jython manage.py makemigrations joins
7. I then run jython manage.py migrate joins





What is the expected output?
I was expecting the new field to produce a new column for the existing  
table and the column to have default values of "ABC".


What do you see instead?
It errors out badly.

   
File "C:\jython2.7b2\Lib\site-packages\django_jython-1.7.0b2-py2.7.egg\doj\db\
backends\__init__.py", line 180, in execute
     self.cursor.execute(sql, params)
django.db.utils.Error: ERROR: could not determine data type of parameter $1  
[SQL
Code: 0], [SQLState: 42P18]

I have attached the entire error in a file to this post.


What version of the product are you using? On what operating system?
I currently have Django1.7c3 running on windows7, Java7, Jython2.7b2,  
Postgresql 9.3, postgresql-9.3-1102.jdbc41, and the  
django_jython-1.7.0b2-py2.7.egg

--
You received this message because you are subscribed to the Google Groups "Django users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to django-users+unsubscribe@googlegroups.com.
To post to this group, send email to django-users@googlegroups.com.
Visit this group at http://groups.google.com/group/django-users.
To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/db7a8702-ae47-4bb9-a58d-474c3efb8b19%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.