Django Version 4.1 I have created migration in SQLite3 and want to change to Postgresql when i connect to Postgresql i've this error

django.db.utils.ProgrammingError: cannot cast type smallint to boolean
LINE 1: ...R COLUMN "isProduct" TYPE boolean USING "isProduct"::boolean

this is my model

from django.db import models

class Item(models.Model):
    name = models.CharField(max_length = 150)
    slug = models.SlugField(unique = True, db_index=True, null=True)
    pic = models.URLField(max_length = 400)
    address = models.CharField(max_length = 150)
    phone = models.CharField(max_length = 15)
    price = models.IntegerField()
    original_link = models.URLField(max_length = 400)
    description = models.TextField(max_length = 1500)
    additional_desc = models.TextField(max_length = 1500,default='')
    material = models.TextField(max_length = 200, default = '')
    weight = models.DecimalField(max_digits = 12, decimal_places = 2, default = 0)
    weight_unit = models.CharField(max_length = 4, default = '')
    color = models.CharField(max_length = 50, default = '')
    dimension_length = models.DecimalField(max_digits = 12, decimal_places = 2, default = 0)
    dimension_width = models.DecimalField(max_digits = 12, decimal_places = 2, default = 0)
    dimension_height = models.DecimalField(max_digits = 12, decimal_places = 2, default = 0)
    dimension_unit = models.CharField(max_length = 4, default='')
    isProduct = models.BooleanField(default = True)
    furniture_location = models.CharField(max_length = 100, default='')
    
    def __str__(self):
        return self.name

i've tried to change BooleanField to SmallIntegerField, PositiveSmallIntegerField, and IntegerField and the error still says the same thing

How to fix this error because this error prevent sessions and contenttype table to be migrated

CodePudding user response：

In my experience, if you tried to change something in Django models and the error stays the same it means you need to restart or delete the table and start migrating it. I suggest you do this Make sure the settings.py is connected to PostgreSQL

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql',
        'NAME': '<PostgreSQL_DBName>',
        'USER': '<PostgreSQL_UserName>',
        'PASSWORD': '<PostgreSQL_Password>',
        'HOST': '<PostgreSQL_HOST>',
        'PORT': '<PostgreSQL_PORT>',
    }
}

1. Delete/Drop database in your PostgreSQL
2. Delete all migrations in migrations/
3. python manage.py makemigrations
4. python manage.py migrate

**Notes If your PostgreSQL is localhost and you're accessing from pgAdmin

1. Disabled your connection with database
2. Delete/Drop Database
3. The Database looks like not deleted by all you need to do is close the pgAdmin and open it again
4. follow step 3 and 4 above