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I'm attempting to configure SQLAlchemy Alembic for my Pyramid project and I want to use my developement.ini (or production.ini) for the configuration settings for Alembic. Is it possible to specify the .ini file I wish to use anywhere within Alembic?
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alembic init alembic From there, you can create tables or migrate functions for example. After the init command, a folder structure is created. The file named 'alembic.ini' is called every time Alembic is used. It contains all the basic information that makes it possible to connect to the database of your choice.
Show activity on this post. Delete (or move to another folder) the specific migration file (in migrations/versions folder). The head will automatically revert to the most recent remaining migration. Using stamp will set the db version value to the specified revision; not alter the head revision number.
Alembic is keeping track of the migrations in the alembic_version table on your database. Simple drop the table to start from scratch using the following command: DROP TABLE alembic_version; And then try to run your migration again!
If you want to run to downgrade() of a version, you will need to run alembic downgrade the-version-before-it , which mean it will revert to the version after the version that you want to downgrade.
Just specify alembic -c /some/path/to/another.ini when running alembic commands. You could even put the [alembic] section in your development.ini and production.ini files and just alembic -c production.ini upgrade head.
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