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fix migrations, add documentation, hopefully fix workflow (#899)

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* fix migrations, add documentation, hopefully fix workflow

* renaming to test-migration and add migration

Co-authored-by: dni <dni.khr@gmail.com>
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dni ⚡ 2022-08-17 15:42:01 +02:00 • committed by GitHub
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docs/devs/extensions.md
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@ -48,4 +48,25 @@ LNbits currently supports SQLite and PostgreSQL databases. There is a migration
### Adding mock data to `mock_data.zip`
`mock_data.zip` contains a few lines of sample SQLite data and is used in automated GitHub test to see whether your migration in `conv.py` works. Run your extension and save a few lines of data into a SQLite `your_extension.sqlite3` file. Unzip `tests/data/mock_data.zip`, add `your_extension.sqlite3` and zip it again. Add the updated `mock_data.zip` to your PR.
`mock_data.zip` contains a few lines of sample SQLite data and is used in automated GitHub test to see whether your migration in `conv.py` works. Run your extension and save a few lines of data into a SQLite `your_extension.sqlite3` file. Unzip `tests/data/mock_data.zip`, add `your_extension.sqlite3`, updated `database.sqlite3` and zip it again. Add the updated `mock_data.zip` to your PR.
### running migration locally
you will need a running postgres database
#### create lnbits user for migration database
```console
sudo su - postgres -c "psql -c 'CREATE ROLE lnbits LOGIN PASSWORD 'lnbits';'"
```
#### create migration database
```console
sudo su - postgres -c "psql -c 'CREATE DATABASE migration;'"
```
#### run the migration
```console
make test-migration
```
sudo su - postgres -c "psql -c 'CREATE ROLE lnbits LOGIN PASSWORD 'lnbits';'"
#### clean migration database afterwards, fails if you try again
```console
sudo su - postgres -c "psql -c 'DROP DATABASE IF EXISTS migration;'"
```