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24 lines
1,015 B
Markdown
24 lines
1,015 B
Markdown
# Database Migration
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### DB migration:
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Alembic is used for database migrations.
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To change any database model, follow these steps.
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- Make sure that you have an up-to-date squeaknode with a sqlite database.
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- Make a note of the path to the ".db" sqlite database file. (Usually `~/.sqk/data/testnet/data.db` by default). If this is an initial migration, then create an empty file at this location.
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- Make the changes to database models in `squeaknode/db/models.py`
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- Update the `alembic.ini` file to point to the sqlite file from before:
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```
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sqlalchemy.url = sqlite://///home/<USER>/.sqk/data/testnet/data.db
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```
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- Run the command to generate a new alembic migration:
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```
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virtualenv venv
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source venv/bin/activate
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pip install -r requirements.txt
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pip install -e .
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alembic -c squeaknode/db/alembic.ini revision --autogenerate -m "<YOUR_MESSAGE>"
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```
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- To generate a new initial version revision, follow the same steps as above, but the `/home/<USER>/.sqk/data/testnet/data.db` file should be an empty file.
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