feat(tx): run resolvemcp operations in per-operation transactions with OnTxBegin

This commit is contained in:
2026-09-30 22:49:47 +02:00
parent ed457eb14a
commit 4cbe4f597d
4 changed files with 350 additions and 107 deletions
+3 -2
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@@ -76,7 +76,7 @@
| 2 | DONE | `OnTxBegin` hook type + `runInTx` helper | `common/txhook.go`, `*/hooks.go`, `*/handler.go` | resolvespec + restheadspec; other specs in P4-6 |
| 3 | DONE | Insert/update post-commit hooks + re-fetch in second short `runInTx` (select only) | restheadspec `:1005, 1467, 1667-1674`; resolvespec `:1297, 1449, 1602` | per decision above |
| 4 | DONE | websocketspec + mqttspec: wrap read/create/update/delete in `runInTx` | `websocketspec/handler.go`, `mqttspec/handler.go` | mqttspec aliases websocketspec hooks; confirm `OnTxBegin` alias |
| 5 | TODO | resolvemcp: read + single create in tx | `resolvemcp/handler.go:253, 445` | verify batch/update/delete hooks run inside tx |
| 5 | DONE | resolvemcp: read + single create in tx | `resolvemcp/handler.go:253, 445` | verify batch/update/delete hooks run inside tx |
| 6 | TODO | funcspec: `OnTxBegin` (or once-per-tx `BeforeOp`), `BeforeResponse` via `runInTx` | `funcspec/function_api.go:337, 640` | |
| 7 | TODO | Security hooks: register RLS stamping on `OnTxBegin`; document | `pkg/security/*`, README | |
@@ -91,7 +91,8 @@
- OPEN: restheadspec `AfterRead` still runs post-commit with `Tx = h.db` (`:1004`); decision says read has no second tx. Needs a call: run it inside the read tx, or in a short second tx.
- DONE P4: websocketspec + mqttspec. `OnTxBegin` (mqttspec re-exports the websocketspec constant), `HookContext.SetTx`, per-handler `runInTx`/`sendTxError`. Per message: read = 1 tx (Before/After hooks + queries); delete = 1 tx (Before, delete, After); create/update = tx 1 (Before + write) then tx 2 (re-fetch + `BeforeScan` + After). `create()`/`update()` no longer re-fetch; `read*`/`create`/`update`/`delete` use `hookCtx.Tx`. websocketspec `FetchRowNumber` keeps its public signature and delegates to a new tx-aware `fetchRowNumber`. A failure in begin/`OnTxBegin`/commit answers `transaction_error` with no detail. Tests: `pkg/websocketspec/tx_test.go` (sqlmock), `pkg/mqttspec/tx_test.go` (sqlite); mqttspec `update` tests now pass `Tx`.
- DECIDED in P4 (follow `AfterRead` question above): websocketspec/mqttspec run `AfterRead` inside the read tx (keeps "read has no second tx").
- NEXT: P5.
- DONE P5: resolvemcp. `OnTxBegin`, `HookContext.SetTx`, `Handler.runInTx`. Read = 1 tx (`BeforeRead`, count, scan, `AfterRead`; `readInTx`). Delete = 1 tx (`BeforeDelete` moved inside, after `OnTxBegin`). Create (single and batch, unified) = tx 1 (`BeforeCreate` + inserts) then tx 2 (re-fetch + `AfterCreate`); the old single-record pool insert/re-fetch is gone. Update = tx 1 (select, `BeforeUpdate`, update, `AfterUpdate`) then tx 2 (re-fetch). `BeforeHandle` still runs before any tx with `Tx = h.db`. Tests: `pkg/resolvemcp/tx_test.go` (sqlmock).
- NEXT: P6.
## Tests
- Existing: per-spec `handler_test.go`, `hooks_test.go`, `integration_test.go`; models in `pkg/testmodels/business.go`; `dbtrace` unit tests.