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Initial syncapi storage refactor to share pq/sqlite code (#1030)

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* Initial syncapi storage refactor to share pq/sqlite code

This goes down a different route than https://github.com/matrix-org/dendrite/pull/985
which tried to even reduce the boilerplate of `ExecContext` etc. The previous pattern
fails badly when there are subtle differences in parameters and hence the shared
boilerplate to read from `QueryContext` breaks. Rather than attacking it at that level,
the main place where we want to reuse code is for the `syncserver.go` itself - the
database implementation which has lots of complex logic. So instead, this commit:
 - Makes `invites_table.go` an interface.
 - Makes `SyncServerDatasource` use that interface
 - This means some functions are now identical for pq/sqlite, so factor them out
   to a temporary `shared.Database` struct which will grow until it replaces all of
   `SyncServerDatasource`.

* Missing files
This commit is contained in:
Kegsay 2020-05-13 17:28:42 +01:00 • committed by GitHub
parent bdddd83753
commit a25d477cdb
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6 changed files with 127 additions and 65 deletions
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28
syncapi/storage/postgres/invites_table.go
View file

@ -21,6 +21,7 @@ import (
"encoding/json"
"github.com/matrix-org/dendrite/common"
"github.com/matrix-org/dendrite/syncapi/storage/tables"
"github.com/matrix-org/dendrite/syncapi/types"
"github.com/matrix-org/gomatrixserverlib"
)
@ -66,28 +67,29 @@ type inviteEventsStatements struct {
selectMaxInviteIDStmt *sql.Stmt
}
func (s *inviteEventsStatements) prepare(db *sql.DB) (err error) {
_, err = db.Exec(inviteEventsSchema)
func NewPostgresInvitesTable(db *sql.DB) (tables.Invites, error) {
s := &inviteEventsStatements{}
_, err := db.Exec(inviteEventsSchema)
if err != nil {
return
return nil, err
}
if s.insertInviteEventStmt, err = db.Prepare(insertInviteEventSQL); err != nil {
return
return nil, err
}
if s.selectInviteEventsInRangeStmt, err = db.Prepare(selectInviteEventsInRangeSQL); err != nil {
return
return nil, err
}
if s.deleteInviteEventStmt, err = db.Prepare(deleteInviteEventSQL); err != nil {
return
return nil, err
}
if s.selectMaxInviteIDStmt, err = db.Prepare(selectMaxInviteIDSQL); err != nil {
return
return nil, err
}
return
return s, nil
}
func (s *inviteEventsStatements) insertInviteEvent(
ctx context.Context, inviteEvent gomatrixserverlib.HeaderedEvent,
func (s *inviteEventsStatements) InsertInviteEvent(
ctx context.Context, txn *sql.Tx, inviteEvent gomatrixserverlib.HeaderedEvent,
) (streamPos types.StreamPosition, err error) {
var headeredJSON []byte
headeredJSON, err = json.Marshal(inviteEvent)
@ -105,7 +107,7 @@ func (s *inviteEventsStatements) insertInviteEvent(
return
}
func (s *inviteEventsStatements) deleteInviteEvent(
func (s *inviteEventsStatements) DeleteInviteEvent(
ctx context.Context, inviteEventID string,
) error {
_, err := s.deleteInviteEventStmt.ExecContext(ctx, inviteEventID)
@ -114,7 +116,7 @@ func (s *inviteEventsStatements) deleteInviteEvent(
// selectInviteEventsInRange returns a map of room ID to invite event for the
// active invites for the target user ID in the supplied range.
func (s *inviteEventsStatements) selectInviteEventsInRange(
func (s *inviteEventsStatements) SelectInviteEventsInRange(
ctx context.Context, txn *sql.Tx, targetUserID string, startPos, endPos types.StreamPosition,
) (map[string]gomatrixserverlib.HeaderedEvent, error) {
stmt := common.TxStmt(txn, s.selectInviteEventsInRangeStmt)
@ -143,7 +145,7 @@ func (s *inviteEventsStatements) selectInviteEventsInRange(
return result, rows.Err()
}
func (s *inviteEventsStatements) selectMaxInviteID(
func (s *inviteEventsStatements) SelectMaxInviteID(
ctx context.Context, txn *sql.Tx,
) (id int64, err error) {
var nullableID sql.NullInt64