aerich/README.rst
2020-05-21 21:22:06 +08:00

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======
Aerich
======
.. image:: https://img.shields.io/pypi/v/aerich.svg?style=flat
:target: https://pypi.python.org/pypi/aerich
.. image:: https://img.shields.io/github/license/long2ice/aerich
:target: https://github.com/long2ice/aerich
.. image:: https://github.com/long2ice/aerich/workflows/pypi/badge.svg
:target: https://github.com/long2ice/aerich/actions?query=workflow:pypi
.. image:: https://github.com/long2ice/aerich/workflows/test/badge.svg
:target: https://github.com/long2ice/aerich/actions?query=workflow:test
Introduction
============
Tortoise-ORM is the best asyncio ORM now, but it lacks a database migrations tool like alembic for SQLAlchemy, or Django ORM with it's own migrations tool.
This project aim to be a best migrations tool for Tortoise-ORM and which written by one of contributors of Tortoise-ORM.
Install
=======
Just install from pypi:
.. code-block:: shell
$ pip install aerich
Quick Start
===========
.. code-block:: shell
$ aerich -h
Usage: aerich [OPTIONS] COMMAND [ARGS]...
Options:
-c, --config TEXT Config file. [default: aerich.ini]
--app TEXT Tortoise-ORM app name. [default: models]
-n, --name TEXT Name of section in .ini file to use for aerich config.
[default: aerich]
-h, --help Show this message and exit.
Commands:
downgrade Downgrade to previous version.
heads Show current available heads in migrate location.
history List all migrate items.
init Init config file and generate root migrate location.
init-db Generate schema and generate app migrate location.
migrate Generate migrate changes file.
upgrade Upgrade to latest version.
Usage
=====
You need add ``aerich.models`` to your ``Tortoise-ORM`` config first, example:
.. code-block:: python
TORTOISE_ORM = {
"connections": {"default": "mysql://root:123456@127.0.0.1:3306/test"},
"apps": {
"models": {
"models": ["tests.models", "aerich.models"],
"default_connection": "default",
},
},
}
Initialization
--------------
.. code-block:: shell
$ aerich init -h
Usage: aerich init [OPTIONS]
Init config file and generate root migrate location.
Options:
-t, --tortoise-orm TEXT Tortoise-ORM config module dict variable, like settings.TORTOISE_ORM.
[required]
--location TEXT Migrate store location. [default: ./migrations]
-h, --help Show this message and exit.
Init config file and location:
.. code-block:: shell
$ aerich init -t tests.backends.mysql.TORTOISE_ORM
Success create migrate location ./migrations
Success generate config file aerich.ini
Init db
-------
.. code-block:: shell
$ aerich init-db
Success create app migrate location ./migrations/models
Success generate schema for app "models"
Update models and make migrate
------------------------------
.. code-block:: shell
$ aerich migrate --name drop_column
Success migrate 1_202029051520102929_drop_column.json
Format of migrate filename is ``{version_num}_{datetime}_{name|update}.json``
Upgrade to latest version
-------------------------
.. code-block:: shell
$ aerich upgrade
Success upgrade 1_202029051520102929_drop_column.json
Now your db is migrated to latest.
Downgrade to previous version
-----------------------------
.. code-block:: shell
$ aerich downgrade
Success downgrade 1_202029051520102929_drop_column.json
Now your db rollback to previous version.
Show history
------------
.. code-block:: shell
$ aerich history
1_202029051520102929_drop_column.json
Show heads to be migrated
-------------------------
.. code-block:: shell
$ aerich heads
1_202029051520102929_drop_column.json
License
=======
This project is licensed under the `MIT <https://github.com/long2ice/aerich/blob/master/LICENSE>`_ License.