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table.go
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table.go
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package executor
import (
"fmt"
"github.com/33cn/chain33/common/db"
"github.com/33cn/chain33/common/db/table"
"github.com/33cn/chain33/system/dapp"
mty "github.com/33cn/chain33/system/dapp/manage/types"
"github.com/33cn/chain33/types"
)
/*
table struct
data: manage config
index: status, addr
*/
var configOpt = &table.Option{
Prefix: "LODB-manage",
Name: "config",
Primary: "heightindex",
Index: []string{"addr", "status", "addr_status"},
}
//NewConfigTable 新建表
func NewConfigTable(kvdb db.KV) *table.Table {
rowmeta := NewConfigRow()
newTable, err := table.NewTable(rowmeta, kvdb, configOpt)
if err != nil {
panic(err)
}
return newTable
}
//ConfigRow table meta 结构
type ConfigRow struct {
*mty.ConfigStatus
}
//NewConfigRow 新建一个meta 结构
func NewConfigRow() *ConfigRow {
return &ConfigRow{ConfigStatus: &mty.ConfigStatus{}}
}
//CreateRow 新建数据行(注意index 数据一定也要保存到数据中,不能就保存heightindex)
func (r *ConfigRow) CreateRow() *table.Row {
return &table.Row{Data: &mty.ConfigStatus{}}
}
//SetPayload 设置数据
func (r *ConfigRow) SetPayload(data types.Message) error {
if d, ok := data.(*mty.ConfigStatus); ok {
r.ConfigStatus = d
return nil
}
return types.ErrTypeAsset
}
//Get 按照indexName 查询 indexValue
func (r *ConfigRow) Get(key string) ([]byte, error) {
if key == "heightindex" {
return []byte(dapp.HeightIndexStr(r.Height, int64(r.Index))), nil
} else if key == "status" {
return []byte(fmt.Sprintf("%2d", r.Status)), nil
} else if key == "addr" {
return []byte(r.Proposer), nil
} else if key == "addr_status" {
return []byte(fmt.Sprintf("%s:%2d", r.Proposer, r.Status)), nil
}
return nil, types.ErrNotFound
}