Fantom-foundation/go-lachesis

package migration

import (
    "github.com/ethereum/go-ethereum/log"

    "github.com/Fantom-foundation/go-lachesis/kvdb"
)

// KvdbIDStore stores id
type KvdbIDStore struct {
    table kvdb.KeyValueStore
    key   []byte
}

// NewKvdbIDStore constructor
func NewKvdbIDStore(table kvdb.KeyValueStore) *KvdbIDStore {
    return &KvdbIDStore{
        table: table,
        key:   []byte("id"),
    }
}

// GetID is a getter
func (p *KvdbIDStore) GetID() string {
    id, err := p.table.Get(p.key)
    if err != nil {
        log.Crit("Failed to get key-value", "err", err)
    }

    if id == nil {
        return ""
    }
    return string(id)
}

// SetID is a setter
func (p *KvdbIDStore) SetID(id string) {
    err := p.table.Put(p.key, []byte(id))
    if err != nil {
        log.Crit("Failed to put key-value", "err", err)
    }
}