apistar_alembic_migrations's Introduction

Alembic migrations for apistar

To Install this library

pip3 install apistar_alembic_migrations

Register the commands

from apistar_alembic_migrations import commands


app = App(
    routes=routes,
    settings=settings,
    commands=commands,  
    components=sqlalchemy_backend.components
)

To generation the initial migrations structure

apistar initialize

The following commands will become avaiable

apistar initialize

apistar create_revision "message"

apistar upgrade <"revision id" or Head for latest>

apistar downgrade "revision id"

Enabling auto generating of migrations from models

open your env.py file in your migrations folder
find the line that contains

target_metadata = None

Import your Declartive Base variable and assign the metadata

from app import Base
target_metadata = Base.metadata

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apistar_alembic_migrations's Issues

Create an example folder with an example on how to integrate this library with apistar

typing module does not yet have `NoReturn` (py3.6.1)

When trying to run initialize I get the following error:

(venv) chases-iMac:weather chase$ apistar initialize
Traceback (most recent call last):
  File "/Users/chase/workspace/newrelic-weather-challenge/venv/bin/apistar", line 11, in <module>
    load_entry_point('apistar==0.3.9', 'console_scripts', 'apistar')()
  File "/Users/chase/workspace/newrelic-weather-challenge/venv/lib/python3.6/site-packages/apistar/__init__.py", line 31, in main
    app = get_current_app()
  File "/Users/chase/workspace/newrelic-weather-challenge/venv/lib/python3.6/site-packages/apistar/__init__.py", line 46, in get_current_app
    spec.loader.exec_module(module)
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 205, in _call_with_frames_removed
  File "app.py", line 4, in <module>
    from apistar_alembic_migrations import commands
  File "/Users/chase/workspace/newrelic-weather-challenge/venv/lib/python3.6/site-packages/apistar_alembic_migrations/__init__.py", line 2, in <module>
    from typing import NoReturn, Callable
ImportError: cannot import name 'NoReturn'

This was only recently added to the typing library. It would be nice to add < py3.6.2 compatibility (not sure if it landed in .2 or .3).

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