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how to change varrock teleport to grand exchange osrs

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How to Reset Migrations

The Django migration system was developed and optmized to work with big number of migrations. Generally you lot shouldn't listen to go on a big corporeality of models migrations in your code base. Even though sometimes it causes some undesired effects, like consuming much time while running the tests. But in scenarios like this you tin can easily disable the migrations (although there is no built-in choice for that at the moment).

Anyway, if you lot want to perform a clean-up, I will present a few options in this tutorial.


Scenario ane:

The project is still in the development environment and you desire to perform a full clean upwards. Y'all don't mind throwing the whole database away.

1. Remove the all migrations files inside your projection

Go through each of your projects apps migration folder and remove everything inside, except the __init__.py file.

Or if you are using a unix-like Os yous can run the post-obit script (inside your project dir):

                find . -path                  "*/migrations/*.py"                  -not -name                  "__init__.py"                  -delete find . -path                  "*/migrations/*.pyc"                  -delete              
2. Drib the current database, or delete the db.sqlite3 if it is your case.
3. Create the initial migrations and generate the database schema:
                python manage.py makemigrations python manage.py migrate              

And you lot are skillful to go.


Scenario 2:

You lot want to clear all the migration history but you want to keep the existing database.

1. Make certain your models fits the current database schema

The easiest way to do information technology is trying to create new migrations:

                python manage.py makemigrations              

If at that place are any pending migration, apply them first.

If you see the message:

                No changes detected              

You are expert to get.

2. Clear the migration history for each app

Now you will need to articulate the migration history app by app.

Showtime run the showmigrations command so we can keep track of what is going on:

                                  $                  python manage.py showmigrations              

Result:

                admin                  [X] 0001_initial                  [Ten] 0002_logentry_remove_auto_add auth                  [10] 0001_initial                  [Ten] 0002_alter_permission_name_max_length                  [X] 0003_alter_user_email_max_length                  [10] 0004_alter_user_username_opts                  [X] 0005_alter_user_last_login_null                  [X] 0006_require_contenttypes_0002                  [10] 0007_alter_validators_add_error_messages contenttypes                  [X] 0001_initial                  [X] 0002_remove_content_type_name core                  [X] 0001_initial                  [X] 0002_remove_mymodel_i                  [X] 0003_mymodel_bio sessions                  [X] 0001_initial              

Clear the migration history (please note that core is the name of my app):

                                  $                  python manage.py migrate --fake core nix              

The result will exist something like this:

                Operations to perform:   Unapply all migrations: core Running migrations:   Rendering model states... DONE   Unapplying cadre.0003_mymodel_bio... FAKED   Unapplying core.0002_remove_mymodel_i... FAKED   Unapplying core.0001_initial... FAKED              

At present run the command showmigrations again:

                                  $                  python manage.py showmigrations              

Effect:

                admin                  [X] 0001_initial                  [X] 0002_logentry_remove_auto_add auth                  [X] 0001_initial                  [Ten] 0002_alter_permission_name_max_length                  [X] 0003_alter_user_email_max_length                  [X] 0004_alter_user_username_opts                  [X] 0005_alter_user_last_login_null                  [X] 0006_require_contenttypes_0002                  [X] 0007_alter_validators_add_error_messages contenttypes                  [X] 0001_initial                  [X] 0002_remove_content_type_name cadre                  [                  ]                  0001_initial                  [                  ]                  0002_remove_mymodel_i                  [                  ]                  0003_mymodel_bio sessions                  [X] 0001_initial              

Y'all must practice that for all the apps yous desire to reset the migration history.

iii. Remove the actual migration files.

Go through each of your projects apps migration binder and remove everything inside, except for the __init__.py file.

Or if yous are using a unix-similar Bone you tin run the post-obit script (inside your project dir):

                find . -path                  "*/migrations/*.py"                  -not -name                  "__init__.py"                  -delete find . -path                  "*/migrations/*.pyc"                  -delete              

PS: The example above will remove all the migrations file within your projection.

Run the showmigrations once more:

                                  $                  python manage.py showmigrations              

Result:

                admin                  [X] 0001_initial                  [X] 0002_logentry_remove_auto_add auth                  [10] 0001_initial                  [X] 0002_alter_permission_name_max_length                  [X] 0003_alter_user_email_max_length                  [X] 0004_alter_user_username_opts                  [X] 0005_alter_user_last_login_null                  [X] 0006_require_contenttypes_0002                  [Ten] 0007_alter_validators_add_error_messages contenttypes                  [X] 0001_initial                  [10] 0002_remove_content_type_name core                  (no migrations)                  sessions                  [X] 0001_initial              
4. Create the initial migrations
                                  $                  python manage.py makemigrations              

Effect:

                Migrations                  for                  'core':   0001_initial.py:     - Create model MyModel              
5. Fake the initial migration

In this case yous won't exist able to apply the initial migration because the database table already exists. What we desire to exercise is to false this migration instead:

                                  $                  python manage.py migrate --imitation-initial              

Result:

                Operations to perform:   Employ all migrations: admin, cadre, contenttypes, auth, sessions Running migrations:   Rendering model states... DONE   Applying cadre.0001_initial... FAKED              

Run showmigrations again:

                admin                  [X] 0001_initial                  [X] 0002_logentry_remove_auto_add auth                  [X] 0001_initial                  [X] 0002_alter_permission_name_max_length                  [X] 0003_alter_user_email_max_length                  [X] 0004_alter_user_username_opts                  [10] 0005_alter_user_last_login_null                  [10] 0006_require_contenttypes_0002                  [10] 0007_alter_validators_add_error_messages contenttypes                  [X] 0001_initial                  [X] 0002_remove_content_type_name core                  [Ten] 0001_initial sessions                  [X] 0001_initial              

And nosotros are all gear up :-)



Source: https://simpleisbetterthancomplex.com/tutorial/2016/07/26/how-to-reset-migrations.html

Posted by: davishatted.blogspot.com

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