when I am migrating I am getting the error django.db.utils.IntegrityError: CHECK constraint failed. I am using django-cms. this error popped up after trying to add editor.js to the project
full Error:
Applying advita.0003_auto_20220615_1506...Traceback (most recent call last):
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\sqlite3\base.py", line 413, in execute
return Database.Cursor.execute(self, query, params)
sqlite3.IntegrityError: CHECK constraint failed: (JSON_VALID("sub_title") OR "sub_title" IS NULL)
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File ".\manage.py", line 22, in <module>
main()
File ".\manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\core\management\__init__.py", line 401, in execute_from_command_line
utility.execute()
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\core\management\__init__.py", line 395, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\core\management\base.py", line 330, in run_from_argv
self.execute(*args, **cmd_options)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\core\management\base.py", line 371, in execute
output = self.handle(*args, **options)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\core\management\base.py", line 85, in wrapped
res = handle_func(*args, **kwargs)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\core\management\commands\migrate.py", line 243, in handle
post_migrate_state = executor.migrate(
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\migrations\executor.py", line 117, in migrate
state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\migrations\executor.py", line 147, in _migrate_all_forwards
state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\migrations\executor.py", line 227, in apply_migration
state = migration.apply(state, schema_editor)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\migrations\migration.py", line 124, in apply
operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\migrations\operations\fields.py", line 236, in database_forwards
schema_editor.alter_field(from_model, from_field, to_field)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\sqlite3\schema.py", line 138, in alter_field
super().alter_field(model, old_field, new_field, strict=strict)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\base\schema.py", line 571, in alter_field
self._alter_field(model, old_field, new_field, old_type, new_type,
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\sqlite3\schema.py", line 360, in _alter_field
self._remake_table(model, alter_field=(old_field, new_field))
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\sqlite3\schema.py", line 283, in _remake_table
self.execute("INSERT INTO %s (%s) SELECT %s FROM %s" % (
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\base\schema.py", line 142, in execute
cursor.execute(sql, params)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\utils.py", line 98, in execute
return super().execute(sql, params)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\utils.py", line 66, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\utils.py", line 75, in _execute_with_wrappers
return executor(sql, params, many, context)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\mulla\AppData\Local\Programs\Python\Python38\lib\site-packages\django\db\backends\sqlite3\base.py", line 413, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.IntegrityError: CHECK constraint failed: (JSON_VALID("sub_title") OR "sub_title" IS NULL)
Can anyone clarify why I am getting this error?
You Faced This IntergrityError Because Your model sub_title does not have a null Field and You Direct do Change JsonField.
JsonField required null=True and Previous Field (sub_title) doesn't have null=True which means you have some value in those filed. After your migrations that Field already has value in the String for that reason, you got this error
django.db.utils.IntegrityError: CHECK constraint failed: (JSON_VALID("sub_title") OR "sub_title" IS NULL)
put that same Previous field and Add Constraint Null=True then apply migration after successful migration used then remove all Value from those Filed
Then You Change CharFiled to JsonField with constraint Null=True, Blank=True
JSONField(_("Sub Title"), blank=True, null=True)
Then apply Migration. it will definitely help you resolve this problem.
This is happening because field 'sub_title' has values earlier which are not valid json.
Table probably already has values for 'sub_title' field and you are changing trying to change earlier fieldtype to jsonfield if this is the case, you should update all values to valid json first.
Related
I've been working on a project for CS50-Web for a while now and I was changing some of my models trying to add a unique attribute to some things. Long story short it wasn't working how I wanted so I went back to how I had it previously and now something is wrong and I can get it to migrate the changes to the model. I don't understand what to do because it was working fine before. Please can someone help I so frustrated and annoyed that I've broken it after so many hours of work. Sorry I know this error code is long but I don't know which part is important.
Error code
Operations to perform:
Apply all migrations: admin, auth, contenttypes, network, sessions
Running migrations:
Applying network.0019_alter_follower_user...Traceback (most recent call last):
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\backends\utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\backends\sqlite3\base.py", line 416, in execute
return Database.Cursor.execute(self, query, params)
sqlite3.IntegrityError: UNIQUE constraint failed: new__network_follower.user_id
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "C:\Users\caitw\Documents\GitHub\CS50-Web\Project-4-Network\project4\manage.py", line 21, in <module>
main()
File "C:\Users\caitw\Documents\GitHub\CS50-Web\Project-4-Network\project4\manage.py", line 17, in main
execute_from_command_line(sys.argv)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\core\management\__init__.py", line 425, in execute_from_command_line
utility.execute()
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\core\management\__init__.py", line 419, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\core\management\base.py", line 373, in run_from_argv
self.execute(*args, **cmd_options)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\core\management\base.py", line 417, in execute
output = self.handle(*args, **options)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\core\management\base.py", line 90, in wrapped
res = handle_func(*args, **kwargs)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\core\management\commands\migrate.py", line 253, in handle
post_migrate_state = executor.migrate(
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\migrations\executor.py", line 126, in migrate
state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\migrations\executor.py", line 156, in _migrate_all_forwards
state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\migrations\executor.py", line 236, in apply_migration
state = migration.apply(state, schema_editor)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\migrations\migration.py", line 125, in apply
operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\migrations\operations\fields.py", line 225, in database_forwards
schema_editor.alter_field(from_model, from_field, to_field)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\backends\sqlite3\schema.py", line 140, in alter_field
super().alter_field(model, old_field, new_field, strict=strict)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\backends\base\schema.py", line 620, in alter_field
self._alter_field(model, old_field, new_field, old_type, new_type,
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\backends\sqlite3\schema.py", line 362, in _alter_field
self._remake_table(model, alter_field=(old_field, new_field))
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\backends\sqlite3\schema.py", line 285, in _remake_table
self.execute("INSERT INTO %s (%s) SELECT %s FROM %s" % (
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\backends\base\schema.py", line 153, in execute
cursor.execute(sql, params)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\backends\utils.py", line 99, in execute
return super().execute(sql, params)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\backends\utils.py", line 67, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\backends\utils.py", line 76, in _execute_with_wrappers
return executor(sql, params, many, context)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\backends\utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\backends\utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\caitw\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\django\db\backends\sqlite3\base.py", line 416, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.IntegrityError: UNIQUE constraint failed: new__network_follower.user_id
I went back to how I had the code before it failed but it doesn't work now
Just try these 3 commands for migrations:
python manage.py makemigrations appname
python manage.py sqlmigrate appname 0001 #This value will generate afte makemigrations. it can be either 0001, 0002 or more.
python manage.py migrate
And see if it solves this error
After pip install phone number field on global as well as in virtual env
and importing in the models.py
I am facing programming error.
Details are as follows
DB is POSTGRESQL
models.py
from django.db import models
from phonenumber_field.modelfields import PhoneNumberField
class Agent(models.Model):
agency_name = models.CharField(max_length=200)
prop_name = models.CharField(max_length=30)
agency_address = models.CharField(max_length=300)
agency_city = models.CharField(max_length=50)
agency_country = models.CharField(max_length=50)
email_address = models.EmailField(max_length=50)
contact_nu = PhoneNumberField()
def __str__(self):
return self.agency_name
admin.py
#admin.register(Agent)
class AgentAdmin(admin.ModelAdmin):
list_display = ('agency_name', 'prop_name', 'agency_address', 'agency_city', 'agency_country', 'email_address', 'contact_nu')
Error:
[07/Jun/2021 09:52:34] "GET /admin/ HTTP/1.1" 200 5546
Internal Server Error: /admin/rk003/agent/
Traceback (most recent call last):
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
psycopg2.errors.UndefinedColumn: column rk003_agent.contact_nu does not exist
Error at the time of migrate is as follows
During Migration there is no error. Makemigration works fine and create models. The check also dont return any error. Just at the time of migrate below error pops up
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
psycopg2.errors.UndefinedColumn: column "contact_nu" of relation "rk003_agent" does not exist
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/Users/rishipalsingh/Projects/notes/mdndjango/rk002/manage.py", line 22, in <module>
main()
File "/Users/rishipalsingh/Projects/notes/mdndjango/rk002/manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/core/management/__init__.py", line 419, in execute_from_command_line
utility.execute()
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/core/management/__init__.py", line 413, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/core/management/base.py", line 354, in run_from_argv
self.execute(*args, **cmd_options)
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/core/management/base.py", line 398, in execute
output = self.handle(*args, **options)
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/core/management/base.py", line 89, in wrapped
res = handle_func(*args, **kwargs)
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/core/management/commands/migrate.py", line 244, in handle
post_migrate_state = executor.migrate(
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/migrations/executor.py", line 117, in migrate
state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/migrations/executor.py", line 147, in _migrate_all_forwards
state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/migrations/executor.py", line 227, in apply_migration
state = migration.apply(state, schema_editor)
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/migrations/migration.py", line 126, in apply
operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/migrations/operations/fields.py", line 244, in database_forwards
schema_editor.alter_field(from_model, from_field, to_field)
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/backends/base/schema.py", line 594, in alter_field
self._alter_field(model, old_field, new_field, old_type, new_type,
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/backends/postgresql/schema.py", line 196, in _alter_field
super()._alter_field(
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/backends/base/schema.py", line 751, in _alter_field
self.execute(
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/backends/base/schema.py", line 145, in execute
cursor.execute(sql, params)
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/backends/utils.py", line 98, in execute
return super().execute(sql, params)
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/backends/utils.py", line 66, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/backends/utils.py", line 75, in _execute_with_wrappers
return executor(sql, params, many, context)
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/Users/rishipalsingh/Projects/notes/mdndjango/venv/lib/python3.9/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: column "contact_nu" of relation "rk003_agent" does not exist
Thanks
Use a CharField, easy to handle yourself and won't cause any excessive errors.
I have the following model
class Profile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE, related_name="profile")
image = models.ImageField(default='default.jpg', upload_to='profile_pics')
location = models.CharField(default=None, max_length=5)
def __str__(self):
return f'{self.user.username} Profile'
I was testing some things out and put null=True for location. Then I changed it to default=None. After that when I tried to run makemigrations followed by migrate.
I got the following error
Full Traceback
Traceback (most recent call last):
File "C:\Users\uddin\project\trade\manage.py", line 22, in <module>
main()
File "C:\Users\uddin\project\trade\manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\core\management\__init__.py", line 401, in execute_from_command_line
utility.execute()
File "C:\Users\uddin\Envs\web\lib\site-packages\django\core\management\__init__.py", line 395, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\core\management\base.py", line 330, in run_from_argv
self.execute(*args, **cmd_options)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\core\management\base.py", line 371, in execute
output = self.handle(*args, **options)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\core\management\base.py", line 85, in wrapped
res = handle_func(*args, **kwargs)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\core\management\commands\migrate.py", line 243, in handle
post_migrate_state = executor.migrate(
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\migrations\executor.py", line 117, in migrate
state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\migrations\executor.py", line 147, in _migrate_all_forwards
state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\migrations\executor.py", line 227, in apply_migration
state = migration.apply(state, schema_editor)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\migrations\migration.py", line 124, in apply
operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\migrations\operations\fields.py", line 236, in database_forwards
schema_editor.alter_field(from_model, from_field, to_field)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\backends\sqlite3\schema.py", line 138, in alter_field
super().alter_field(model, old_field, new_field, strict=strict)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\backends\base\schema.py", line 571, in alter_field
self._alter_field(model, old_field, new_field, old_type, new_type,
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\backends\sqlite3\schema.py", line 360, in _alter_field
self._remake_table(model, alter_field=(old_field, new_field))
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\backends\sqlite3\schema.py", line 283, in _remake_table
self.execute("INSERT INTO %s (%s) SELECT %s FROM %s" % (
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\backends\base\schema.py", line 142, in execute
cursor.execute(sql, params)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\backends\utils.py", line 98, in execute
return super().execute(sql, params)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\backends\utils.py", line 66, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\backends\utils.py", line 75, in _execute_with_wrappers
return executor(sql, params, many, context)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\uddin\Envs\web\lib\site-packages\django\db\backends\sqlite3\base.py", line 413, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.IntegrityError: NOT NULL constraint failed: new__users_profile.location
I went through the migrations folder and changed each migration that had null=True to default=None, but I still seem to get the error? Anything I'm not seeing?
I have been tryed to change a django model by applying and running migrations but I have been getting this error django.db.utils.IntegrityError: UNIQUE constraint failed: new__startup_home_mates.user_id How can this error be fixed? I have already investigated a lot but I have found nothing that fits my situation. I have already tried to use RenameField and AlterField directly from the migrations file and it is still not working maybe I was doing it wrong.
models.py
class Mates(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE, related_name='usermates', unique=True)
users_requests = models.ManyToManyField(User, related_name="users_requests")
req_bio = models.CharField(max_length=400)
req_image = models.ImageField(upload_to='requestmates_pics', null=True, blank=True, default=False)
traceback
Traceback (most recent call last):
File "manage.py", line 21, in <module>
main()
File "manage.py", line 17, in main
execute_from_command_line(sys.argv)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\core\management\__init__.py", line 401, in execute_from_command_line
utility.execute()
File "C:\Users\USER\Envs\startup\lib\site-packages\django\core\management\__init__.py", line 395, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\core\management\base.py", line 328, in run_from_argv
self.execute(*args, **cmd_options)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\core\management\base.py", line 369, in execute
output = self.handle(*args, **options)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\core\management\base.py", line 83, in wrapped
res = handle_func(*args, **kwargs)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\core\management\commands\migrate.py", line 231, in handle
post_migrate_state = executor.migrate(
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\migrations\executor.py", line 117, in migrate
state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\migrations\executor.py", line 147, in _migrate_all_forwards
state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\migrations\executor.py", line 245, in apply_migration
state = migration.apply(state, schema_editor)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\migrations\migration.py", line 124, in apply
operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\migrations\operations\fields.py", line 249, in database_forwards
schema_editor.alter_field(from_model, from_field, to_field)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\backends\sqlite3\schema.py", line 138, in alter_field
super().alter_field(model, old_field, new_field, strict=strict)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\backends\base\schema.py", line 564, in alter_field
self._alter_field(model, old_field, new_field, old_type, new_type,
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\backends\sqlite3\schema.py", line 360, in _alter_field
self._remake_table(model, alter_field=(old_field, new_field))
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\backends\sqlite3\schema.py", line 283, in _remake_table
self.execute("INSERT INTO %s (%s) SELECT %s FROM %s" % (
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\backends\base\schema.py", line 142, in execute
cursor.execute(sql, params)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\backends\utils.py", line 100, in execute
return super().execute(sql, params)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\backends\utils.py", line 68, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\backends\utils.py", line 77, in _execute_with_wrappers
return executor(sql, params, many, context)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\backends\utils.py", line 86, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\backends\utils.py", line 86, in _execute
return self.cursor.execute(sql, params)
File "C:\Users\USER\Envs\startup\lib\site-packages\django\db\backends\sqlite3\base.py", line 396, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.IntegrityError: UNIQUE constraint failed: new__startup_home_mates.user_id
If you need to see more code please let me know:)
You may added a primary key / id with your models later, but previous database does not have it.
If you add new features to models, add default='something', or null=True,blank=True as arguments. So that old database won't need the unique constraints/value
I suspect that your problem is with your OnetoOneField with unique set to True. You should change this to a ForeignKey (and don't set Unique = True). This is so that users can have more than one mate. That is if I have correctly understood your model setup and what you are trying to achieve.
Here is a good summary of the differences between OnetoOneField and ForeignKey:
What's the difference between django OneToOneField and ForeignKey?
I recently changed a date field to an integer field (the data was specified in number of months remaining rather than a date).
However all though the make migrations command works fine when I attempt to migrate this fails with a typecast error (note using postgres 9.5). Note there was only 1 instance/entry of the model, which I have also now deleted and the migrate still fails for some reason?
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
psycopg2.ProgrammingError: cannot cast type date to integer
LINE 1: ...end_date_fixed" TYPE integer USING "end_date_fixed"::integer
^
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/core/management/__init__.py", line 353, in execute_from_command_line
utility.execute()
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/core/management/__init__.py", line 345, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/core/management/base.py", line 348, in run_from_argv
self.execute(*args, **cmd_options)
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/core/management/base.py", line 399, in execute
output = self.handle(*args, **options)
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/core/management/commands/migrate.py", line 200, in handle
executor.migrate(targets, plan, fake=fake, fake_initial=fake_initial)
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/db/migrations/executor.py", line 92, in migrate
self._migrate_all_forwards(plan, full_plan, fake=fake, fake_initial=fake_initial)
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/db/migrations/executor.py", line 121, in _migrate_all_forwards
state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/db/migrations/executor.py", line 198, in apply_migration
state = migration.apply(state, schema_editor)
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/db/migrations/migration.py", line 123, in apply
operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/db/migrations/operations/fields.py", line 201, in database_forwards
schema_editor.alter_field(from_model, from_field, to_field)
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/db/backends/base/schema.py", line 482, in alter_field
old_db_params, new_db_params, strict)
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/db/backends/postgresql/schema.py", line 110, in _alter_field
new_db_params, strict,
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/db/backends/base/schema.py", line 634, in _alter_field
params,
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/db/backends/base/schema.py", line 110, in execute
cursor.execute(sql, params)
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/db/backends/utils.py", line 79, in execute
return super(CursorDebugWrapper, self).execute(sql, params)
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/db/utils.py", line 95, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/utils/six.py", line 685, in reraise
raise value.with_traceback(tb)
File "/Users/Yunti/.virtualenvs/switcher5/lib/python3.5/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: cannot cast type date to integer
LINE 1: ...end_date_fixed" TYPE integer USING "end_date_fixed"::integer
If the table is empty.
Do the migration in two simple steps. Step 1, drop the existing date column from the model. Step 2 add a new INTEGER column with the same column name.
If the table is not empty.
Edit your model to change the type of end_date_fixed to integer as you have done. Do the make migrations, the open the migrations and delete everything inside migrations[] then replacce it with
migrations.RunSQL("ALTER TABLE mytable ALTER end_date_fixed TYPE INTEGER USING EXTRACT(epoch FROM end_date_fixed)
Make sure that you have not made any other changes to the model when you try this method.