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Event relations (#2790)

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This adds support for tracking `m.relates_to`, as well as adding support
for the various `/room/{roomID}/relations/...` endpoints to the CS API.
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Neil Alexander 2022-10-13 14:50:52 +01:00 • committed by GitHub
parent 3c1474f68f
commit 23a3e04579
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19 changed files with 943 additions and 51 deletions
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syncapi/storage/tables/interface.go
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@ -206,3 +206,22 @@ type Presence interface {
GetMaxPresenceID(ctx context.Context, txn *sql.Tx) (pos types.StreamPosition, err error)
GetPresenceAfter(ctx context.Context, txn *sql.Tx, after types.StreamPosition, filter gomatrixserverlib.EventFilter) (presences map[string]*types.PresenceInternal, err error)
}
type Relations interface {
// Inserts a relation which refers from the child event ID to the event ID in the given room.
// If the relation already exists then this function will do nothing and return no error.
InsertRelation(ctx context.Context, txn *sql.Tx, roomID, eventID, childEventID, childEventType, relType string) (err error)
// Deletes a relation which already exists as the result of an event redaction. If the relation
// does not exist then this function will do nothing and return no error.
DeleteRelation(ctx context.Context, txn *sql.Tx, roomID, childEventID string) error
// SelectRelationsInRange will return relations grouped by relation type within the given range.
// The map is relType -> []entry. If a relType parameter is specified then the results will only
// contain relations of that type, otherwise if "" is specified then all relations in the range
// will be returned, inclusive of the "to" position but excluding the "from" position. The stream
// position returned is the maximum position of the returned results.
SelectRelationsInRange(ctx context.Context, txn *sql.Tx, roomID, eventID, relType, eventType string, r types.Range, limit int) (map[string][]types.RelationEntry, types.StreamPosition, error)
// SelectMaxRelationID returns the maximum ID of all relations, used to determine what the boundaries
// should be if there are no boundaries supplied (i.e. we want to work backwards but don't have a
// "from" or want to work forwards and don't have a "to").
SelectMaxRelationID(ctx context.Context, txn *sql.Tx) (id int64, err error)
}