mercury/internal/database/sql/database.go

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2023-09-03 00:23:48 +02:00
// Package sql implements the SQL storage layer.
package sql
import (
"context"
"emperror.dev/errors"
"github.com/jackc/pgx/v5/pgxpool"
"github.com/oklog/ulid/v2"
)
// Base is the base database pool used by storage layers.
type Base struct {
pool *pgxpool.Pool
}
// NewBase creates a new instance of Base with the specified connection string.
func NewBase(ctx context.Context, connString string) (*Base, error) {
pool, err := pgxpool.New(ctx, connString)
if err != nil {
return nil, errors.Wrap(err, "creating pool")
}
base := &Base{
pool: pool,
}
return base, nil
}
// Acquire acquires a connection from the database pool.
// It is the caller's responsibility to call the Release method.
func (base *Base) Acquire(ctx context.Context) (ReleaseableQuerier, error) {
conn, err := base.pool.Acquire(ctx)
if err != nil {
return nil, errors.Wrap(err, "acquiring connection")
}
return conn, nil
}
func (base *Base) BeginTx(ctx context.Context) (Tx, error) {
tx, err := base.pool.Begin(ctx)
if err != nil {
return nil, errors.Wrap(err, "beginning transaction")
}
return tx, nil
}
func (base *Base) PoolQuerier() Querier {
return base.pool
}
func makeULID() ulid.ULID {
return ulid.Make()
}