59 lines
1.1 KiB
Go
59 lines
1.1 KiB
Go
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package database
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import (
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"context"
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"database/sql"
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"errors"
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)
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func Context(ctx context.Context, db *sql.DB) context.Context {
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return context.WithValue(ctx, dbCtxKey, db)
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}
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func ForContext(ctx context.Context) (*sql.Conn, error) {
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raw, ok := ctx.Value(dbCtxKey).(*sql.DB)
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if !ok {
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panic(errors.New("Invalid database context"))
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}
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return raw.Conn(ctx)
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}
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func DBForContext(ctx context.Context) *sql.DB {
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raw, ok := ctx.Value(dbCtxKey).(*sql.DB)
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if !ok {
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panic(errors.New("Invalid database context"))
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}
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return raw
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}
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func WithTx(ctx context.Context, opts *sql.TxOptions, fn func(tx *sql.Tx) error) error {
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conn, err := ForContext(ctx)
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if err != nil {
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return err
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}
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defer conn.Close()
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tx, err := conn.BeginTx(ctx, opts)
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if err != nil {
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return err
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}
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defer func() {
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if r := recover(); r != nil {
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tx.Rollback()
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panic(r)
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}
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}()
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err = fn(tx)
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if err != nil {
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err := tx.Rollback()
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if err != nil && err != sql.ErrTxDone {
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panic(err)
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}
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} else {
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err := tx.Commit()
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if err != nil && err != sql.ErrTxDone {
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panic(err)
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}
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}
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return err
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}
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