Files
popertotsandSisyphus c69a243f75 feat(backend): add PoolProxy, Querier, and per-test transaction infrastructure
New types and helpers for context-aware DB routing and per-test transactions:

- PoolProxy: wraps pgxpool.Pool, routes queries through context transaction when active
- Querier: interface accepted by fixture/helper functions for decoupling
- ContextWithTx / TxFromContext: store/extract pgx.Tx in context.Context
- SetupTestTx (in testutils): begins tx, stores in context, auto-rolls back on cleanup
- SetupTestTx (in testtx): package-level variant with semaphore for parallel safety

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
2026-06-21 19:28:18 +01:00

25 lines
625 B
Go

package db
import (
"context"
"github.com/jackc/pgx/v5"
)
type ctxKey string
const txCtxKey ctxKey = "poolproxy_tx"
// ContextWithTx stores a pgx.Tx in the context for PoolProxy routing.
// When PoolProxy.Exec/Query/QueryRow sees this context key, it routes the
// call through the stored transaction instead of the pool.
func ContextWithTx(ctx context.Context, tx pgx.Tx) context.Context {
return context.WithValue(ctx, txCtxKey, tx)
}
// TxFromContext extracts a pgx.Tx from context (returns nil if none active).
func TxFromContext(ctx context.Context) pgx.Tx {
tx, _ := ctx.Value(txCtxKey).(pgx.Tx)
return tx
}