Django: cannot cast type integer to time without time zone
I've had some previous testing with models and their functionality integration.
There were few fields that were using for time input. At first I thought maybe IntegerField will be enough, but as we continue with more new solutions things changed. So there was check_in_time, check_out_time
and etc.
Now we want to set it to TimeField, but as we are trying to apply the migrations those errors appear. I'm not an postgres guru so I'm scared of breaking things up, cuz migrations might be an pain in the ass.
This is the new migration:
class Migration(migrations.Migration):
dependencies = [
('property', '0084_rename_max_tenants_property_max_guests_allowed'),
]
operations = [
migrations.AlterField(
model_name='property',
name='check_in_after_time',
field=models.TimeField(null=True),
),
migrations.AlterField(
model_name='property',
name='check_in_before_time',
field=models.TimeField(null=True),
),
migrations.AlterField(
model_name='property',
name='check_out_after_time',
field=models.TimeField(null=True),
),
migrations.AlterField(
model_name='property',
name='check_out_before_time',
field=models.TimeField(null=True),
),
]
This is our fields that we want to use it right now as TimeFields:
check_in_before_time = models.TimeField(null=True)
check_in_after_time = models.TimeField(null=True)
notice_days_before_check_in = models.PositiveIntegerField(default=0)
check_out_before_time = models.TimeField(null=True)
check_out_after_time = models.TimeField(null=True)
How can I fix it now and prevent it from happening again when migrating this on other servers?
LOG:
bin/django migrate property
Operations to perform:
Apply all migrations: property
Running migrations:
Applying property.0085_auto_20230122_0304...Traceback (most recent call last):
File "/home/dziugas/werent/app/venv/lib/python3.9/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
psycopg2.errors.CannotCoerce: cannot cast type integer to time without time zone
LINE 1: ...k_in_after_time" TYPE time USING "check_in_after_time"::time
^
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/home/dziugas/werent/app/bin/django", line 11, in <module>
load_entry_point('web', 'console_scripts', 'django')()
File "/home/dziugas/werent/app/web/manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "/home/dziugas/werent/app/venv/lib/python3.9/site-packages/django/core/management/__init__.py", line 419, in execute_from_command_line
utility.execute()
File "/home/dziugas/werent/app/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 "/home/dziugas/werent/app/venv/lib/python3.9/site-packages/django/core/management/base.py", line 354, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/dziugas/werent/app/venv/lib/python3.9/site-packages/django/core/management/base.py", line 398, in execute
output = self.handle(*args, **options)
File "/home/dziugas/werent/app/venv/lib/python3.9/site-packages/django/core/management/base.py", line 89, in wrapped
res = handle_func(*args, **kwargs)
File "/home/dziugas/werent/app/venv/lib/python3.9/site-packages/django/core/management/commands/migrate.py", line 244, in handle
post_migrate_state = executor.migrate(
File "/home/dziugas/werent/app/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 "/home/dziugas/werent/app/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 "/home/dziugas/werent/app/venv/lib/python3.9/site-packages/django/db/migrations/executor.py", line 227, in apply_migration
state = migration.apply(state, schema_editor)
File "/home/dziugas/werent/app/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 "/home/dziugas/werent/app/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 "/home/dziugas/werent/app/venv/lib/python3.9/site-packages/django/db/backends/base/schema.py", line 608, in alter_field
self._alter_field(model, old_field, new_field, old_type, new_type,
File "/home/dziugas/werent/app/venv/lib/python3.9/site-packages/django/db/backends/postgresql/schema.py", line 196, in _alter_field
super()._alter_field(
File "/home/dziugas/werent/app/venv/lib/python3.9/site-packages/django/db/backends/base/schema.py", line 765, in _alter_field
self.execute(
File "/home/dziugas/werent/app/venv/lib/python3.9/site-packages/django/db/backends/base/schema.py", line 145, in execute
cursor.execute(sql, params)
File "/home/dziugas/werent/app/venv/lib/python3.9/site-packages/django/db/backends/utils.py", line 98, in execute
return super().execute(sql, params)
File "/home/dziugas/werent/app/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 "/home/dziugas/werent/app/venv/lib/python3.9/site-packages/django/db/backends/utils.py", line 75, in _execute_with_wrappers
return executor(sql, params, many, context)
File "/home/dziugas/werent/app/venv/lib/python3.9/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "/home/dziugas/werent/app/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 "/home/dziugas/werent/app/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: cannot cast type integer to time without time zone
LINE 1: ...k_in_after_time" TYPE time USING "check_in_after_time"::time