update transactions model

CHANGELOG

@@ -4,6 +4,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [4.0.1] - 2020-02-04
+### Added
+
+### Changed
+- Transaction model
+
+### Removed
+
 ## [4.0.0] - 2020-02-04
 ### Added
 

models/transaction.go

@@ -1,24 +1,10 @@
 package models
 
 import (
+	"encoding/json"
 	"time"
 )
 
-const TxTypeSend = 1
-const TxTypeSellCoin = 2
-const TxTypeSellAllCoin = 3
-const TxTypeBuyCoin = 4
-const TxTypeCreateCoin = 5
-const TxTypeDeclareCandidacy = 6
-const TxTypeDelegate = 7
-const TxTypeUnbound = 8
-const TxTypeRedeemCheck = 9
-const TxTypeSetCandidateOnline = 10
-const TxTypeSetCandidateOffline = 11
-const TxTypeMultiSig = 12
-const TxTypeMultiSend = 13
-const TxTypeEditCandidate = 14
-
 type Transaction struct {
 	ID            uint64               `json:"id" sql:",pk"`
 	FromAddressID uint64               `json:"from_address_id"`
@@ -31,8 +17,9 @@ type Transaction struct {
 	Type          uint8                `json:"type"`
 	Hash          string               `json:"hash"`
 	ServiceData   string               `json:"service_data"`
-	Data          interface{}          `json:"data"`
-	Tags          interface{}          `json:"tags"`
+	Data          json.RawMessage      `json:"data"`
+	IData         interface{}          `json:"-" sql:"-"`
+	Tags          map[string]string    `json:"tags"`
 	Payload       []byte               `json:"payload"`
 	RawTx         []byte               `json:"raw_tx"`
 	Block         *Block               `json:"block"`                                             //Relation has one to Blocks