stillbox/pkg/database/database.go
2024-11-15 13:42:38 -05:00

111 lines
2.3 KiB
Go

package database
import (
"context"
"errors"
"strings"
"dynatron.me/x/stillbox/pkg/config"
sqlembed "dynatron.me/x/stillbox/sql"
"github.com/golang-migrate/migrate/v4"
_ "github.com/golang-migrate/migrate/v4/database/pgx/v5"
"github.com/golang-migrate/migrate/v4/source/iofs"
"github.com/jackc/pgx/v5"
"github.com/jackc/pgx/v5/pgxpool"
"github.com/jackc/pgx/v5/tracelog"
"github.com/rs/zerolog/log"
)
// DB is a database handle.
//go:generate mockery
type DB interface {
Querier
talkgroupQuerier
DB() *Database
}
type Database struct {
*pgxpool.Pool
*Queries
}
func (db *Database) DB() *Database {
return db
}
type dbLogger struct{}
func (m dbLogger) Log(ctx context.Context, level tracelog.LogLevel, msg string, data map[string]any) {
log.Debug().Fields(data).Msg(msg)
}
// NewClient creates a new DB using the provided config.
func NewClient(ctx context.Context, conf config.DB) (DB, error) {
dir, err := iofs.New(sqlembed.Migrations, "postgres/migrations")
if err != nil {
return nil, err
}
m, err := migrate.NewWithSourceInstance("iofs", dir, strings.Replace(conf.Connect, "postgres://", "pgx5://", 1)) // yech
if err != nil {
return nil, err
}
err = m.Up()
if err != nil && !errors.Is(err, migrate.ErrNoChange) {
return nil, err
}
m.Close()
pgConf, err := pgxpool.ParseConfig(conf.Connect)
if err != nil {
return nil, err
}
if conf.LogQueries {
pgConf.ConnConfig.Tracer = &tracelog.TraceLog{
Logger: dbLogger{},
LogLevel: tracelog.LogLevelTrace,
}
}
pool, err := pgxpool.NewWithConfig(ctx, pgConf)
if err != nil {
return nil, err
}
db := &Database{
Pool: pool,
Queries: New(pool),
}
return db, nil
}
type dBCtxKey string
const DBCtxKey dBCtxKey = "dbctx"
// FromCtx returns the database handle from the provided Context.
func FromCtx(ctx context.Context) DB {
c, ok := ctx.Value(DBCtxKey).(DB)
if !ok {
panic("no DB in context")
}
return c
}
// CtxWithDB returns a Context with the provided database handle.
func CtxWithDB(ctx context.Context, conn DB) context.Context {
return context.WithValue(ctx, DBCtxKey, conn)
}
// IsNoRows is a convenience function that returns whether a returned error is a database
// no rows error.
func IsNoRows(err error) bool {
return errors.Is(err, pgx.ErrNoRows)
}