django-migrations

问题 I would like to create data migrations that create Permissions and Groups, so that my other developers can just run the migrations and get everything set up. I was able to create the migrations and run them just fine, but now I'm getting an error when running my tests. But if I do this: from django.contrib.auth.models import Group def add_operations_group(apps, schema_editor): Group.objects.get_or_create(name='operations') I get: django.db.utils.OperationalError: no such table: auth_group If

问题 There is this error showing after I have used makemigrations command I have tried commenting different column for it but it wont work C:\Users\Rushabh\Desktop\project\MyPrj>python manage.py migrate Operations to perform: Apply all migrations: admin, auth, contenttypes, paper, sessions Running migrations: Applying paper.0014_auto_20170405_1549...Traceback (most recent call last): File "C:\Users\Rushabh\Anaconda3\lib\site-packages\django\db\backends\utils.py", line 62, in execute return self

问题 There is this error showing after I have used makemigrations command I have tried commenting different column for it but it wont work C:\Users\Rushabh\Desktop\project\MyPrj>python manage.py migrate Operations to perform: Apply all migrations: admin, auth, contenttypes, paper, sessions Running migrations: Applying paper.0014_auto_20170405_1549...Traceback (most recent call last): File "C:\Users\Rushabh\Anaconda3\lib\site-packages\django\db\backends\utils.py", line 62, in execute return self

问题 I have a production web project running with a decent amount of data in the MySQL db. I am trying to update the database with some changes to an app called "enterlink." I've made new elements in the existing models and created new models altogether. Before this migration, I have never touched the schema of the db since originally running syncdb to create it. When I run: "python manage.py makemigrations enterlink" the below output appears(pic). My question is, why is this happening? The DB

问题 I am new to django, I have created a project and app and I would like to connect my project to the mongodb. when I enter python manage.py migrate command , I am getting below mentioned error. I have dropped database and cleared all migrations in the django_migration table and deleted migration files in the created migrations folder. Still getting same error. Please help me with this. Thanks in advance Error: raise TypeError("documents must be a non-empty list") TypeError: documents must be a

问题 I'm starting a project in Django-2.0.1 with a database Oracle 11g, and when I run $python manage.py migrate, I get the error django.db.migrations.exceptions.MigrationSchemaMissing: Unable to create the django_migrations table (ORA-02000: missing ALWAYS keyword). You can see the full stack below: Traceback (most recent call last): File "/Users/user/anaconda3/lib/python3.6/site-packages/django/db/backends/utils.py", line 83, in _execute return self.cursor.execute(sql) File "/Users/user

问题 I have two models connected via a ForeignKey sort of like this: class Album(models.Model): name = models.CharField(max_length=128) # ... class Track(models.Model): name = models.CharField(max_length=128) album = models.ForeignKey(Album, related_name='tracks', null=True, on_delete=models.SET_NULL) # ... I'm writing a data migration where I try to delete some Albums: # -*- coding: utf-8 -*- # Generated by Django 1.9.13 on 2018-12-12 14:05 from __future__ import unicode_literals from django.db

问题 Scenario : I have a model, Customer class Customer(models.Model): name = models.CharField(max_length=100) age = models.IntegerField() company = models.CharField(max_length=100) and now I updated the company attribute witha ForeignKey relationship as below, class Company(models.Model): name = models.CharField(max_length=100) location = models.CharField(max_length=100) class Customer(models.Model): name = models.CharField(max_length=100) age = models.IntegerField() company = models.ForeignKey

问题 Django verstion 1.8 Trying to migrate a newly added app in my project. Here is the traceback error: Traceback (most recent call last): File "./manage.py", line 10, in <module> execute_from_command_line(sys.argv) File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 354, in execute_from_command_line utility.execute() File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 346, in execute self.fetch_command(subcommand).run_from

问题 I'm trying to deploy a Django (1.8) app to Heroku, runtime Python 3.4.2. The app runs succesfully (except the fact that tables are not created), but when trying run the syncdb I get the following error: Running `python manage.py syncdb` attached to terminal... up, run.5851 /app/.heroku/python/lib/python3.4/site-packages/django/core/management /commands/syncdb.py:24: RemovedInDjango19Warning: The syncdb command will be removed in Django 1.9 warnings.warn("The syncdb command will be removed in