fix for issue #146; mark header checked for contract if it doesnt hav…

…e any logs at that header but other contracts do

pkg/contract_watcher/header/transformer/transformer.go

@@ -256,12 +256,19 @@ func (tr *Transformer) Execute() error {
 
 		// Process logs for each contract
 		for conAddr, logs := range sortedLogs {
+			con := tr.Contracts[conAddr]
 			if logs == nil {
+				for eventName := range con.Events {
+					eventId := strings.ToLower(eventName + "_" + con.Address)
+					markCheckedErr := tr.HeaderRepository.MarkHeaderChecked(header.Id, eventId)
+					if markCheckedErr != nil {
+						return fmt.Errorf("error marking header checked: %s", markCheckedErr.Error())
+					}
+				}
 				logrus.Tracef("no logs found for contract %s at block %d, continuing", conAddr, header.BlockNumber)
 				continue
 			}
 			// Configure converter with this contract
-			con := tr.Contracts[conAddr]
 			tr.Converter.Update(con)
 
 			// Convert logs into batches of log mappings (eventName => []types.Logs