// GetPagingParams modifies the base GetPagingParams method to replace
// cursors that are "now" with the last seen ledger's cursor.
func (action *Action) GetPagingParams() (cursor string, order string, limit uint64) {
if action.Err != nil {
return
}
cursor, order, limit = action.Base.GetPagingParams()
if cursor == "now" {
tid := toid.ID{
LedgerSequence: action.App.latestLedgerState.Horizon,
TransactionOrder: toid.TransactionMask,
OperationOrder: toid.OperationMask,
}
cursor = tid.String()
}
return
}
// ForLedger filters the query to a only operations in a specific ledger,
// specified by its sequence.
func (q *OperationsQ) ForLedger(seq int32) *OperationsQ {
var ledger Ledger
q.Err = q.parent.LedgerBySequence(&ledger, seq)
if q.Err != nil {
return q
}
start := toid.ID{LedgerSequence: seq}
end := toid.ID{LedgerSequence: seq + 1}
q.sql = q.sql.Where(
"hop.id >= ? AND hop.id < ?",
start.ToInt64(),
end.ToInt64(),
)
return q
}