fix(staking): stake amount history api

Author: gezerui0124

db/cl_staking_event.go

@@ -2,6 +2,7 @@ package db
 
 import (
 	"errors"
+	"time"
 
 	"gorm.io/gorm"
 )
@@ -18,7 +19,7 @@ type CLStakingEvent struct {
 
 type CLSuccessfulStakingEvent struct {
 	CLStakingEvent
-	BlockTime int64 `gorm:"not null;column:block_time"`
+	BlockTime time.Time `gorm:"not null;column:block_time"`
 }
 
 func (CLStakingEvent) TableName() string {

pkg/indexer/cl_total_stake_hist.go

@@ -116,7 +116,7 @@ func (c *CLTotalStakeHistIndexer) index() error {
 	for blkno, amt := range blk2StakeChange {
 		scs = append(scs, &stakeChange{
 			BlockHeight:       blkno,
-			BlockTime:         events[blkno].BlockTime,
+			BlockTime:         events[blkno].BlockTime.Unix(),
 			StakeChangeAmount: amt,
 		})
 	}