PostgresRepository module (ska_db_oda.infrastructure.postgres.repository)

This module contains implementations of the AbstractRepository class, using Postgres as the data store.

class ska_db_oda.infrastructure.postgres.repository.PostgresBridge(postgres_mapping: PostgresMapping, connection: psycopg.Connection)

Implementation of the Repository bridge which persists entities in a PostgreSQL instance.

create(entity: T) → T

Implementation of the RepositoryBridge method.

See create() docstring for details

query(qry_params: QueryParams) → List[U]

Queries the latest version of the entity based on QueryParams class from the ODA and returns the corresponding entity ID

Returns an empty list if no entities in the repository match the parameters.

Raises:

• ValueError – if the qry_params are not supported

• OSError – if an error occurs while querying the entity

read(entity_id: U) → T

Implementation of the RepositoryBridge method.

See read() docstring for details

update(entity: T) → T

Implementation of the RepositoryBridge method.

See update() docstring for details