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sqlite: fixes from sytest (#872)

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* bugfix: fix panic on new invite events from sytest

I'm unsure why the previous code didn't work, but it's
clearer, quicker and easier to read the `LastInsertID()` way.
Previously, the code would panic as the SELECT would fail
to find the last inserted row ID.

* sqlite: Fix UNIQUE violations and close more cursors

- Add missing `defer rows.Close()`
- Do not have the state block NID as a PRIMARY KEY else it breaks for blocks
  with >1 state event in them. Instead, rejig the queries so we can still
  have monotonically increasing integers without using AUTOINCREMENT (which
  mandates PRIMARY KEY).

* sqlite: Add missing variadic function

* Use LastInsertId because empirically it works over the SELECT form (though I don't know why that is)

* sqlite: Fix invite table by using the global stream pos rather than one specific to invites

If we don't use the global, clients don't get notified about any invites
because the position is too low.

* linting: shadowing

* sqlite: do not use last rowid, we already know the stream pos!

* sqlite: Fix account data table in syncapi by commiting insert txns!

* sqlite: Fix failing federation invite

Was failing with 'database is locked' due to multiple write txns
being taken out.

* sqlite: Ensure we return exactly the number of events found in the database

Previously we would return exactly the number of *requested* events, which
meant that several zero-initialised events would bubble through the system,
failing at JSON serialisation time.

* sqlite: let's just ignore the problem for now....

* linting
This commit is contained in:
Kegsay 2020-02-20 09:28:03 +00:00 • committed by GitHub
parent 3dabf4d4ed
commit 5caae6f3a0
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11 changed files with 145 additions and 137 deletions
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34
syncapi/storage/sqlite3/invites_table.go
View file

@ -26,7 +26,7 @@ import (
const inviteEventsSchema = `
CREATE TABLE IF NOT EXISTS syncapi_invite_events (
id INTEGER PRIMARY KEY AUTOINCREMENT,
id INTEGER PRIMARY KEY,
event_id TEXT NOT NULL,
room_id TEXT NOT NULL,
target_user_id TEXT NOT NULL,
@ -39,11 +39,8 @@ CREATE INDEX IF NOT EXISTS syncapi_invites_event_id_idx ON syncapi_invite_events
const insertInviteEventSQL = "" +
"INSERT INTO syncapi_invite_events" +
" (room_id, event_id, target_user_id, event_json)" +
" VALUES ($1, $2, $3, $4)"
const selectLastInsertedInviteEventSQL = "" +
"SELECT id FROM syncapi_invite_events WHERE rowid = last_insert_rowid()"
" (id, room_id, event_id, target_user_id, event_json)" +
" VALUES ($1, $2, $3, $4, $5)"
const deleteInviteEventSQL = "" +
"DELETE FROM syncapi_invite_events WHERE event_id = $1"
@ -57,12 +54,11 @@ const selectMaxInviteIDSQL = "" +
"SELECT MAX(id) FROM syncapi_invite_events"
type inviteEventsStatements struct {
streamIDStatements *streamIDStatements
insertInviteEventStmt *sql.Stmt
selectLastInsertedInviteEventStmt *sql.Stmt
selectInviteEventsInRangeStmt *sql.Stmt
deleteInviteEventStmt *sql.Stmt
selectMaxInviteIDStmt *sql.Stmt
streamIDStatements *streamIDStatements
insertInviteEventStmt *sql.Stmt
selectInviteEventsInRangeStmt *sql.Stmt
deleteInviteEventStmt *sql.Stmt
selectMaxInviteIDStmt *sql.Stmt
}
func (s *inviteEventsStatements) prepare(db *sql.DB, streamID *streamIDStatements) (err error) {
@ -74,9 +70,6 @@ func (s *inviteEventsStatements) prepare(db *sql.DB, streamID *streamIDStatement
if s.insertInviteEventStmt, err = db.Prepare(insertInviteEventSQL); err != nil {
return
}
if s.selectLastInsertedInviteEventStmt, err = db.Prepare(selectLastInsertedInviteEventSQL); err != nil {
return
}
if s.selectInviteEventsInRangeStmt, err = db.Prepare(selectInviteEventsInRangeSQL); err != nil {
return
}
@ -90,19 +83,16 @@ func (s *inviteEventsStatements) prepare(db *sql.DB, streamID *streamIDStatement
}
func (s *inviteEventsStatements) insertInviteEvent(
ctx context.Context, inviteEvent gomatrixserverlib.Event,
) (streamPos types.StreamPosition, err error) {
_, err = s.insertInviteEventStmt.ExecContext(
ctx context.Context, txn *sql.Tx, inviteEvent gomatrixserverlib.Event, streamPos types.StreamPosition,
) (err error) {
_, err = txn.Stmt(s.insertInviteEventStmt).ExecContext(
ctx,
streamPos,
inviteEvent.RoomID(),
inviteEvent.EventID(),
*inviteEvent.StateKey(),
inviteEvent.JSON(),
)
if err != nil {
return
}
err = s.selectLastInsertedInviteEventStmt.QueryRowContext(ctx).Scan(&streamPos)
return
}