More review comments

src/github.com/matrix-org/dendrite/federationsender/consumers/roomserver.go

@@ -185,7 +185,7 @@ func (s *OutputRoomEvent) joinedHostsAtEvent(
 
 	joined := map[gomatrixserverlib.ServerName]bool{}
 	for _, joinedHost := range oldJoinedHosts {
-		if removed[joinedHost.EventID] {
+		if removed[joinedHost.MemberEventID] {
 			// This m.room.member event is part of the current state of the
 			// room, but not part of the state at the event we are processing
 			// Therefore we can't use it to tell whether the server was in
@@ -233,7 +233,7 @@ func joinedHostsFromEvents(evs []gomatrixserverlib.Event) ([]types.JoinedHost, e
 			return nil, err
 		}
 		joinedHosts = append(joinedHosts, types.JoinedHost{
-			EventID: ev.EventID(), ServerName: serverName,
+			MemberEventID: ev.EventID(), ServerName: serverName,
 		})
 	}
 	return joinedHosts, nil

src/github.com/matrix-org/dendrite/federationsender/storage/joined_hosts_table.go

@@ -16,6 +16,7 @@ package storage
 
 import (
 	"database/sql"
+
 	"github.com/lib/pq"
 	"github.com/matrix-org/dendrite/federationsender/types"
 	"github.com/matrix-org/gomatrixserverlib"
@@ -101,8 +102,8 @@ func (s *joinedHostsStatements) selectJoinedHosts(txn *sql.Tx, roomID string,
 			return nil, err
 		}
 		result = append(result, types.JoinedHost{
-			EventID:    eventID,
-			ServerName: gomatrixserverlib.ServerName(serverName),
+			MemberEventID: eventID,
+			ServerName:    gomatrixserverlib.ServerName(serverName),
 		})
 	}
 	return result, nil

src/github.com/matrix-org/dendrite/federationsender/storage/storage.go

@@ -16,6 +16,7 @@ package storage
 
 import (
 	"database/sql"
+
 	"github.com/matrix-org/dendrite/common"
 	"github.com/matrix-org/dendrite/federationsender/types"
 )
@@ -91,7 +92,7 @@ func (d *Database) UpdateRoom(
 			return err
 		}
 		for _, add := range addHosts {
-			err = d.insertJoinedHosts(txn, roomID, add.EventID, add.ServerName)
+			err = d.insertJoinedHosts(txn, roomID, add.MemberEventID, add.ServerName)
 			if err != nil {
 				return err
 			}

src/github.com/matrix-org/dendrite/federationsender/types/types.go

@@ -22,14 +22,14 @@ import (
 
 // A JoinedHost is a server that is joined to a matrix room.
 type JoinedHost struct {
-	// The EventID of a m.room.member join event.
-	EventID string
+	// The MemberEventID of a m.room.member join event.
+	MemberEventID string
 	// The domain part of the state key of the m.room.member join event
 	ServerName gomatrixserverlib.ServerName
 }
 
 // A EventIDMismatchError indicates that we have got out of sync with the
-// rooms erver.
+// rooms server.
 type EventIDMismatchError struct {
 	// The event ID we have stored in our local database.
 	DatabaseID string
@@ -37,9 +37,9 @@ type EventIDMismatchError struct {
 	RoomServerID string
 }
 
-func (l EventIDMismatchError) Error() string {
+func (e EventIDMismatchError) Error() string {
 	return fmt.Sprintf(
 		"mismatched last sent event ID: had %q in database got %q from room server",
-		l.DatabaseID, l.RoomServerID,
+		e.DatabaseID, e.RoomServerID,
 	)
 }