invalid literal for int() with base 10 - django - updated
Question: I am a django beginner, and I am trying to make a child-parent like combo box,
(bars depends on city depends on country) and I get this error.

**UPDATE: Changed the model and the default value for the foreign key, but
still the same error. Any help? thanks!**

this is models.py:

    
    
    from django.db import models
    from smart_selects.db_fields import ChainedForeignKey
    
    DEFAULT_COUNTRY_ID = 1 # id of Israel
    class BarName(models.Model):
        name = models.CharField(max_length=20)
        def __unicode__(self):
            return self.name
    
    class Country(models.Model):
        country = models.CharField(max_length=20)
        def __unicode__(self):
            return self.country
    
    class City(models.Model):
        city = models.CharField(max_length=20)
        country = models.ForeignKey(Country, default=DEFAULT_COUNTRY_ID)
        def __unicode__(self):
            return self.city
    
    class Bar(models.Model):
        country = models.ForeignKey(Country)
        city = ChainedForeignKey(City, chained_field='country' , chained_model_field='country', auto_choose=True)
        name = ChainedForeignKey(BarName, chained_field='city', chained_model_field='city', auto_choose=True)
    
        def __unicode__(self):
            return '%s %s %s' % (self.name, self.city, self.country)
        class Admin:
            pass
    

from running 'python manage.py migrate':

    
    
    ➜  baromatix  python manage.py migrate       
    Operations to perform:
      Apply all migrations: admin, bars, contenttypes, auth, sessions
    Running migrations:
      .......
    
        value = self.get_prep_value(value)
      File "/Library/Python/2.7/site-packages/django/db/models/fields/__init__.py", line 915, in get_prep_value
        return int(value)
    ValueError: invalid literal for int() with base 10: 'DEFAULT VALUE'
    


Answer: I solved this issue when deleting the **old migrations files** that django
created.

