Fix

bchain/coins/polis/polisparser.go

@@ -1,6 +1,7 @@
 package polis
 
 import (
+	"blockbook/bchain"
 	"blockbook/bchain/coins/btc"
 
 	"github.com/martinboehm/btcd/wire"
@@ -47,11 +48,15 @@ func init() {
 // PolisParser handle
 type PolisParser struct {
 	*btc.BitcoinParser
+	baseparser *bchain.BaseParser
 }
 
 // NewPolisParser returns new PolisParser instance
 func NewPolisParser(params *chaincfg.Params, c *btc.Configuration) *PolisParser {
-	return &PolisParser{BitcoinParser: btc.NewBitcoinParser(params, c)}
+	return &PolisParser{
+		BitcoinParser: btc.NewBitcoinParser(params, c),
+		baseparser:    &bchain.BaseParser{},
+	}
 }
 
 // GetChainParams contains network parameters for the main Polis network,
@@ -79,3 +84,13 @@ func GetChainParams(chain string) *chaincfg.Params {
 		return &MainNetParams
 	}
 }
+
+// PackTx packs transaction to byte array using protobuf
+func (p *PolisParser) PackTx(tx *bchain.Tx, height uint32, blockTime int64) ([]byte, error) {
+	return p.baseparser.PackTx(tx, height, blockTime)
+}
+
+// UnpackTx unpacks transaction from protobuf byte array
+func (p *PolisParser) UnpackTx(buf []byte) (*bchain.Tx, uint32, error) {
+	return p.baseparser.UnpackTx(buf)
+}