2023-03-25 16:14:16 +01:00
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# DB
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This module primarily contains SQL files for the URLs database. The most central tables are `EC_DOMAIN`, `EC_URL` and `EC_PAGE_DATA`.
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2023-08-01 17:08:42 +02:00
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## Flyway
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The system uses flyway to track database changes and allow easy migrations, this is accessible via gradle tasks.
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* `flywayMigrate`
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* `flywayBaseline`
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* `flywayRepair`
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* `flywayClean` (dangerous as in wipes your entire database)
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Refer to the [Flyway documentation](https://documentation.red-gate.com/fd/flyway-documentation-138346877.html) for guidance.
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It's well documented and these are probably the only four tasks you'll ever need.
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If you are not running the system via docker, you need to provide alternative connection details than
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the defaults (TODO: how?).
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The migration files are in [resources/db/migration](src/main/resources/db/migration). The file name convention
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incorporates the project's cal-ver versioning; and are applied in lexicographical order.
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VYY_MM_v_nnn__description.sql
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2023-03-25 16:14:16 +01:00
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## Central Paths
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2023-08-01 17:08:42 +02:00
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* [migrations](src/main/resources/db/migration) - Flyway migrations
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2023-03-25 16:14:16 +01:00
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## See Also
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* [common/service](../service) implements DatabaseModule, which is from where the services get database connections.
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