636 lines
19 KiB
Go
636 lines
19 KiB
Go
package transfer
|
|
|
|
import (
|
|
"context"
|
|
"database/sql"
|
|
"database/sql/driver"
|
|
"encoding/json"
|
|
"errors"
|
|
"math/big"
|
|
"reflect"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/log"
|
|
|
|
"github.com/status-im/status-go/services/wallet/bigint"
|
|
w_common "github.com/status-im/status-go/services/wallet/common"
|
|
"github.com/status-im/status-go/services/wallet/thirdparty"
|
|
"github.com/status-im/status-go/sqlite"
|
|
)
|
|
|
|
// DBHeader fields from header that are stored in database.
|
|
type DBHeader struct {
|
|
Number *big.Int
|
|
Hash common.Hash
|
|
Timestamp uint64
|
|
PreloadedTransactions []*PreloadedTransaction
|
|
Network uint64
|
|
Address common.Address
|
|
// Head is true if the block was a head at the time it was pulled from chain.
|
|
Head bool
|
|
// Loaded is true if transfers from this block have been already fetched
|
|
Loaded bool
|
|
}
|
|
|
|
func toDBHeader(header *types.Header, blockHash common.Hash, account common.Address) *DBHeader {
|
|
return &DBHeader{
|
|
Hash: blockHash,
|
|
Number: header.Number,
|
|
Timestamp: header.Time,
|
|
Loaded: false,
|
|
Address: account,
|
|
}
|
|
}
|
|
|
|
// SyncOption is used to specify that application processed transfers for that block.
|
|
type SyncOption uint
|
|
|
|
// JSONBlob type for marshaling/unmarshaling inner type to json.
|
|
type JSONBlob struct {
|
|
data interface{}
|
|
}
|
|
|
|
// Scan implements interface.
|
|
func (blob *JSONBlob) Scan(value interface{}) error {
|
|
if value == nil || reflect.ValueOf(blob.data).IsNil() {
|
|
return nil
|
|
}
|
|
bytes, ok := value.([]byte)
|
|
if !ok {
|
|
return errors.New("not a byte slice")
|
|
}
|
|
if len(bytes) == 0 {
|
|
return nil
|
|
}
|
|
err := json.Unmarshal(bytes, blob.data)
|
|
return err
|
|
}
|
|
|
|
// Value implements interface.
|
|
func (blob *JSONBlob) Value() (driver.Value, error) {
|
|
if blob.data == nil || reflect.ValueOf(blob.data).IsNil() {
|
|
return nil, nil
|
|
}
|
|
return json.Marshal(blob.data)
|
|
}
|
|
|
|
func NewDB(client *sql.DB) *Database {
|
|
return &Database{client: client}
|
|
}
|
|
|
|
// Database sql wrapper for operations with wallet objects.
|
|
type Database struct {
|
|
client *sql.DB
|
|
}
|
|
|
|
// Close closes database.
|
|
func (db *Database) Close() error {
|
|
return db.client.Close()
|
|
}
|
|
|
|
func (db *Database) SaveBlocks(chainID uint64, headers []*DBHeader) (err error) {
|
|
var (
|
|
tx *sql.Tx
|
|
)
|
|
tx, err = db.client.Begin()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer func() {
|
|
if err == nil {
|
|
err = tx.Commit()
|
|
return
|
|
}
|
|
_ = tx.Rollback()
|
|
}()
|
|
|
|
err = insertBlocksWithTransactions(chainID, tx, headers)
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
func saveTransfersMarkBlocksLoaded(creator statementCreator, chainID uint64, address common.Address, transfers []Transfer, blocks []*big.Int) (err error) {
|
|
err = updateOrInsertTransfers(chainID, creator, transfers)
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
err = markBlocksAsLoaded(chainID, creator, address, blocks)
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
// GetTransfersInRange loads transfers for a given address between two blocks.
|
|
func (db *Database) GetTransfersInRange(chainID uint64, address common.Address, start, end *big.Int) (rst []Transfer, err error) {
|
|
query := newTransfersQuery().FilterNetwork(chainID).FilterAddress(address).FilterStart(start).FilterEnd(end).FilterLoaded(1)
|
|
rows, err := db.client.Query(query.String(), query.Args()...)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer rows.Close()
|
|
return query.TransferScan(rows)
|
|
}
|
|
|
|
// GetTransfersByAddress loads transfers for a given address between two blocks.
|
|
func (db *Database) GetTransfersByAddress(chainID uint64, address common.Address, toBlock *big.Int, limit int64) (rst []Transfer, err error) {
|
|
query := newTransfersQuery().
|
|
FilterNetwork(chainID).
|
|
FilterAddress(address).
|
|
FilterEnd(toBlock).
|
|
FilterLoaded(1).
|
|
SortByBlockNumberAndHash().
|
|
Limit(limit)
|
|
|
|
rows, err := db.client.Query(query.String(), query.Args()...)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer rows.Close()
|
|
return query.TransferScan(rows)
|
|
}
|
|
|
|
// GetTransfersByAddressAndBlock loads transfers for a given address and block.
|
|
func (db *Database) GetTransfersByAddressAndBlock(chainID uint64, address common.Address, block *big.Int, limit int64) (rst []Transfer, err error) {
|
|
query := newTransfersQuery().
|
|
FilterNetwork(chainID).
|
|
FilterAddress(address).
|
|
FilterBlockNumber(block).
|
|
FilterLoaded(1).
|
|
SortByBlockNumberAndHash().
|
|
Limit(limit)
|
|
|
|
rows, err := db.client.Query(query.String(), query.Args()...)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer rows.Close()
|
|
return query.TransferScan(rows)
|
|
}
|
|
|
|
// GetTransfers load transfers transfer between two blocks.
|
|
func (db *Database) GetTransfers(chainID uint64, start, end *big.Int) (rst []Transfer, err error) {
|
|
query := newTransfersQuery().FilterNetwork(chainID).FilterStart(start).FilterEnd(end).FilterLoaded(1)
|
|
rows, err := db.client.Query(query.String(), query.Args()...)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer rows.Close()
|
|
return query.TransferScan(rows)
|
|
}
|
|
|
|
func (db *Database) GetTransfersForIdentities(ctx context.Context, identities []TransactionIdentity) (rst []Transfer, err error) {
|
|
query := newTransfersQuery()
|
|
for _, identity := range identities {
|
|
subQuery := newSubQuery()
|
|
subQuery = subQuery.FilterNetwork(uint64(identity.ChainID)).FilterTransactionID(identity.Hash).FilterAddress(identity.Address)
|
|
query.addSubQuery(subQuery, OrSeparator)
|
|
}
|
|
rows, err := db.client.QueryContext(ctx, query.String(), query.Args()...)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer rows.Close()
|
|
return query.TransferScan(rows)
|
|
}
|
|
|
|
func (db *Database) GetTransactionsToLoad(chainID uint64, address common.Address, blockNumber *big.Int) (rst []*PreloadedTransaction, err error) {
|
|
query := newTransfersQueryForPreloadedTransactions().
|
|
FilterNetwork(chainID).
|
|
FilterLoaded(0)
|
|
|
|
if address != (common.Address{}) {
|
|
query.FilterAddress(address)
|
|
}
|
|
|
|
if blockNumber != nil {
|
|
query.FilterBlockNumber(blockNumber)
|
|
}
|
|
|
|
rows, err := db.client.Query(query.String(), query.Args()...)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer rows.Close()
|
|
return query.PreloadedTransactionScan(rows)
|
|
}
|
|
|
|
// statementCreator allows to pass transaction or database to use in consumer.
|
|
type statementCreator interface {
|
|
Prepare(query string) (*sql.Stmt, error)
|
|
}
|
|
|
|
// Only used by status-mobile
|
|
func (db *Database) InsertBlock(chainID uint64, account common.Address, blockNumber *big.Int, blockHash common.Hash) error {
|
|
var (
|
|
tx *sql.Tx
|
|
)
|
|
tx, err := db.client.Begin()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer func() {
|
|
if err == nil {
|
|
err = tx.Commit()
|
|
return
|
|
}
|
|
_ = tx.Rollback()
|
|
}()
|
|
|
|
blockDB := blockDBFields{
|
|
chainID: chainID,
|
|
account: account,
|
|
blockNumber: blockNumber,
|
|
blockHash: blockHash,
|
|
}
|
|
return insertBlockDBFields(tx, blockDB)
|
|
}
|
|
|
|
type blockDBFields struct {
|
|
chainID uint64
|
|
account common.Address
|
|
blockNumber *big.Int
|
|
blockHash common.Hash
|
|
}
|
|
|
|
func insertBlockDBFields(creator statementCreator, block blockDBFields) error {
|
|
insert, err := creator.Prepare("INSERT OR IGNORE INTO blocks(network_id, address, blk_number, blk_hash, loaded) VALUES (?, ?, ?, ?, ?)")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
_, err = insert.Exec(block.chainID, block.account, (*bigint.SQLBigInt)(block.blockNumber), block.blockHash, true)
|
|
return err
|
|
}
|
|
|
|
func insertBlocksWithTransactions(chainID uint64, creator statementCreator, headers []*DBHeader) error {
|
|
insert, err := creator.Prepare("INSERT OR IGNORE INTO blocks(network_id, address, blk_number, blk_hash, loaded) VALUES (?, ?, ?, ?, ?)")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
updateTx, err := creator.Prepare(`UPDATE transfers
|
|
SET log = ?, log_index = ?
|
|
WHERE network_id = ? AND address = ? AND hash = ?`)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
insertTx, err := creator.Prepare(`INSERT OR IGNORE
|
|
INTO transfers (network_id, address, sender, hash, blk_number, blk_hash, type, timestamp, log, loaded, log_index, token_id, amount_padded128hex)
|
|
VALUES (?, ?, ?, ?, ?, ?, ?, 0, ?, 0, ?, ?, ?)`)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, header := range headers {
|
|
_, err = insert.Exec(chainID, header.Address, (*bigint.SQLBigInt)(header.Number), header.Hash, header.Loaded)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, transaction := range header.PreloadedTransactions {
|
|
var logIndex *uint
|
|
if transaction.Log != nil {
|
|
logIndex = new(uint)
|
|
*logIndex = transaction.Log.Index
|
|
}
|
|
res, err := updateTx.Exec(&JSONBlob{transaction.Log}, logIndex, chainID, header.Address, transaction.ID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
affected, err := res.RowsAffected()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if affected > 0 {
|
|
continue
|
|
}
|
|
|
|
tokenID := (*bigint.SQLBigIntBytes)(transaction.TokenID)
|
|
txValue := sqlite.BigIntToPadded128BitsStr(transaction.Value)
|
|
// Is that correct to set sender as account address?
|
|
_, err = insertTx.Exec(chainID, header.Address, header.Address, transaction.ID, (*bigint.SQLBigInt)(header.Number), header.Hash, transaction.Type, &JSONBlob{transaction.Log}, logIndex, tokenID, txValue)
|
|
if err != nil {
|
|
log.Error("error saving token transfer", "err", err)
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func updateOrInsertTransfers(chainID uint64, creator statementCreator, transfers []Transfer) error {
|
|
txsDBFields := make([]transferDBFields, 0, len(transfers))
|
|
for _, localTransfer := range transfers {
|
|
// to satisfy gosec: C601 checks
|
|
t := localTransfer
|
|
var receiptType *uint8
|
|
var txHash, blockHash *common.Hash
|
|
var receiptStatus, cumulativeGasUsed, gasUsed *uint64
|
|
var contractAddress *common.Address
|
|
var transactionIndex, logIndex *uint
|
|
|
|
if t.Receipt != nil {
|
|
receiptType = &t.Receipt.Type
|
|
receiptStatus = &t.Receipt.Status
|
|
txHash = &t.Receipt.TxHash
|
|
if t.Log != nil {
|
|
logIndex = new(uint)
|
|
*logIndex = t.Log.Index
|
|
}
|
|
blockHash = &t.Receipt.BlockHash
|
|
cumulativeGasUsed = &t.Receipt.CumulativeGasUsed
|
|
contractAddress = &t.Receipt.ContractAddress
|
|
gasUsed = &t.Receipt.GasUsed
|
|
transactionIndex = &t.Receipt.TransactionIndex
|
|
}
|
|
|
|
var txProtected *bool
|
|
var txGas, txNonce, txSize *uint64
|
|
var txGasPrice, txGasTipCap, txGasFeeCap *big.Int
|
|
var txType *uint8
|
|
var txValue *big.Int
|
|
var tokenAddress *common.Address
|
|
var tokenID *big.Int
|
|
var txFrom *common.Address
|
|
var txTo *common.Address
|
|
if t.Transaction != nil {
|
|
if t.Log != nil {
|
|
_, tokenAddress, txFrom, txTo = w_common.ExtractTokenTransferData(t.Type, t.Log, t.Transaction)
|
|
tokenID = t.TokenID
|
|
// Zero tokenID can be used for ERC721 and ERC1155 transfers but when serialzed/deserialized it becomes nil
|
|
// as 0 value of big.Int bytes is nil.
|
|
if tokenID == nil && (t.Type == w_common.Erc721Transfer || t.Type == w_common.Erc1155Transfer) {
|
|
tokenID = big.NewInt(0)
|
|
}
|
|
txValue = t.TokenValue
|
|
} else {
|
|
txValue = new(big.Int).Set(t.Transaction.Value())
|
|
txFrom = &t.From
|
|
txTo = t.Transaction.To()
|
|
}
|
|
|
|
txType = new(uint8)
|
|
*txType = t.Transaction.Type()
|
|
txProtected = new(bool)
|
|
*txProtected = t.Transaction.Protected()
|
|
txGas = new(uint64)
|
|
*txGas = t.Transaction.Gas()
|
|
txGasPrice = t.Transaction.GasPrice()
|
|
txGasTipCap = t.Transaction.GasTipCap()
|
|
txGasFeeCap = t.Transaction.GasFeeCap()
|
|
txNonce = new(uint64)
|
|
*txNonce = t.Transaction.Nonce()
|
|
txSize = new(uint64)
|
|
*txSize = t.Transaction.Size()
|
|
}
|
|
|
|
dbFields := transferDBFields{
|
|
chainID: chainID,
|
|
id: t.ID,
|
|
blockHash: t.BlockHash,
|
|
blockNumber: t.BlockNumber,
|
|
timestamp: t.Timestamp,
|
|
address: t.Address,
|
|
transaction: t.Transaction,
|
|
sender: t.From,
|
|
receipt: t.Receipt,
|
|
log: t.Log,
|
|
transferType: t.Type,
|
|
baseGasFees: t.BaseGasFees,
|
|
multiTransactionID: t.MultiTransactionID,
|
|
receiptStatus: receiptStatus,
|
|
receiptType: receiptType,
|
|
txHash: txHash,
|
|
logIndex: logIndex,
|
|
receiptBlockHash: blockHash,
|
|
cumulativeGasUsed: cumulativeGasUsed,
|
|
contractAddress: contractAddress,
|
|
gasUsed: gasUsed,
|
|
transactionIndex: transactionIndex,
|
|
txType: txType,
|
|
txProtected: txProtected,
|
|
txGas: txGas,
|
|
txGasPrice: txGasPrice,
|
|
txGasTipCap: txGasTipCap,
|
|
txGasFeeCap: txGasFeeCap,
|
|
txValue: txValue,
|
|
txNonce: txNonce,
|
|
txSize: txSize,
|
|
tokenAddress: tokenAddress,
|
|
tokenID: tokenID,
|
|
txFrom: txFrom,
|
|
txTo: txTo,
|
|
}
|
|
txsDBFields = append(txsDBFields, dbFields)
|
|
}
|
|
|
|
return updateOrInsertTransfersDBFields(creator, txsDBFields)
|
|
}
|
|
|
|
type transferDBFields struct {
|
|
chainID uint64
|
|
id common.Hash
|
|
blockHash common.Hash
|
|
blockNumber *big.Int
|
|
timestamp uint64
|
|
address common.Address
|
|
transaction *types.Transaction
|
|
sender common.Address
|
|
receipt *types.Receipt
|
|
log *types.Log
|
|
transferType w_common.Type
|
|
baseGasFees string
|
|
multiTransactionID w_common.MultiTransactionIDType
|
|
receiptStatus *uint64
|
|
receiptType *uint8
|
|
txHash *common.Hash
|
|
logIndex *uint
|
|
receiptBlockHash *common.Hash
|
|
cumulativeGasUsed *uint64
|
|
contractAddress *common.Address
|
|
gasUsed *uint64
|
|
transactionIndex *uint
|
|
txType *uint8
|
|
txProtected *bool
|
|
txGas *uint64
|
|
txGasPrice *big.Int
|
|
txGasTipCap *big.Int
|
|
txGasFeeCap *big.Int
|
|
txValue *big.Int
|
|
txNonce *uint64
|
|
txSize *uint64
|
|
tokenAddress *common.Address
|
|
tokenID *big.Int
|
|
txFrom *common.Address
|
|
txTo *common.Address
|
|
}
|
|
|
|
func updateOrInsertTransfersDBFields(creator statementCreator, transfers []transferDBFields) error {
|
|
insert, err := creator.Prepare(`INSERT OR REPLACE INTO transfers
|
|
(network_id, hash, blk_hash, blk_number, timestamp, address, tx, sender, receipt, log, type, loaded, base_gas_fee, multi_transaction_id,
|
|
status, receipt_type, tx_hash, log_index, block_hash, cumulative_gas_used, contract_address, gas_used, tx_index,
|
|
tx_type, protected, gas_limit, gas_price_clamped64, gas_tip_cap_clamped64, gas_fee_cap_clamped64, amount_padded128hex, account_nonce, size, token_address, token_id, tx_from_address, tx_to_address)
|
|
VALUES
|
|
(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 1, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, t := range transfers {
|
|
txGasPrice := sqlite.BigIntToClampedInt64(t.txGasPrice)
|
|
txGasTipCap := sqlite.BigIntToClampedInt64(t.txGasTipCap)
|
|
txGasFeeCap := sqlite.BigIntToClampedInt64(t.txGasFeeCap)
|
|
txValue := sqlite.BigIntToPadded128BitsStr(t.txValue)
|
|
|
|
_, err = insert.Exec(t.chainID, t.id, t.blockHash, (*bigint.SQLBigInt)(t.blockNumber), t.timestamp, t.address, &JSONBlob{t.transaction}, t.sender, &JSONBlob{t.receipt}, &JSONBlob{t.log}, t.transferType, t.baseGasFees, t.multiTransactionID,
|
|
t.receiptStatus, t.receiptType, t.txHash, t.logIndex, t.receiptBlockHash, t.cumulativeGasUsed, t.contractAddress, t.gasUsed, t.transactionIndex,
|
|
t.txType, t.txProtected, t.txGas, txGasPrice, txGasTipCap, txGasFeeCap, txValue, t.txNonce, t.txSize, t.tokenAddress, (*bigint.SQLBigIntBytes)(t.tokenID), t.txFrom, t.txTo)
|
|
if err != nil {
|
|
log.Error("can't save transfer", "b-hash", t.blockHash, "b-n", t.blockNumber, "a", t.address, "h", t.id)
|
|
return err
|
|
}
|
|
}
|
|
|
|
for _, t := range transfers {
|
|
err = removeGasOnlyEthTransfer(creator, t)
|
|
if err != nil {
|
|
log.Error("can't remove gas only eth transfer", "b-hash", t.blockHash, "b-n", t.blockNumber, "a", t.address, "h", t.id, "err", err)
|
|
// no return err, since it's not critical
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func removeGasOnlyEthTransfer(creator statementCreator, t transferDBFields) error {
|
|
if t.transferType == w_common.EthTransfer {
|
|
countQuery, err := creator.Prepare(`SELECT COUNT(*) FROM transfers WHERE tx_hash = ?`)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer countQuery.Close()
|
|
|
|
var count int
|
|
err = countQuery.QueryRow(t.txHash).Scan(&count)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// If there's only one (or none), return without deleting
|
|
if count <= 1 {
|
|
log.Debug("Only one or no transfer found with the same tx_hash, skipping deletion.")
|
|
return nil
|
|
}
|
|
}
|
|
query, err := creator.Prepare(`DELETE FROM transfers WHERE tx_hash = ? AND address = ? AND network_id = ? AND account_nonce = ? AND type = 'eth' AND amount_padded128hex = '00000000000000000000000000000000'`)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer query.Close()
|
|
|
|
res, err := query.Exec(t.txHash, t.address, t.chainID, t.txNonce)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
count, err := res.RowsAffected()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
log.Debug("removeGasOnlyEthTransfer row deleted ", count)
|
|
return nil
|
|
}
|
|
|
|
// markBlocksAsLoaded(chainID, tx, address, blockNumbers)
|
|
// In case block contains both ETH and token transfers, it will be marked as loaded on ETH transfer processing.
|
|
// This is not a problem since for token transfers we have preloaded transactions and blocks 'loaded' flag is needed
|
|
// for ETH transfers only.
|
|
func markBlocksAsLoaded(chainID uint64, creator statementCreator, address common.Address, blocks []*big.Int) error {
|
|
update, err := creator.Prepare("UPDATE blocks SET loaded=? WHERE address=? AND blk_number=? AND network_id=?")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, block := range blocks {
|
|
_, err := update.Exec(true, address, (*bigint.SQLBigInt)(block), chainID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// GetOwnedMultiTransactionID returns sql.ErrNoRows if no transaction is found for the given identity
|
|
func GetOwnedMultiTransactionID(tx *sql.Tx, chainID w_common.ChainID, hash common.Hash, address common.Address) (mTID int64, err error) {
|
|
row := tx.QueryRow(`SELECT COALESCE(multi_transaction_id, 0) FROM transfers WHERE network_id = ? AND tx_hash = ? AND address = ?`, chainID, hash, address)
|
|
err = row.Scan(&mTID)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
return mTID, nil
|
|
}
|
|
|
|
func (db *Database) GetLatestCollectibleTransfer(address common.Address, id thirdparty.CollectibleUniqueID) (*Transfer, error) {
|
|
query := newTransfersQuery().
|
|
FilterAddress(address).
|
|
FilterNetwork(uint64(id.ContractID.ChainID)).
|
|
FilterTokenAddress(id.ContractID.Address).
|
|
FilterTokenID(id.TokenID.Int).
|
|
FilterLoaded(1).
|
|
SortByTimestamp(false).
|
|
Limit(1)
|
|
rows, err := db.client.Query(query.String(), query.Args()...)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer rows.Close()
|
|
|
|
transfers, err := query.TransferScan(rows)
|
|
if err == sql.ErrNoRows || len(transfers) == 0 {
|
|
return nil, nil
|
|
} else if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &transfers[0], nil
|
|
}
|
|
|
|
// Delete blocks for address and chainID
|
|
// Transfers will be deleted by cascade
|
|
func deleteBlocks(creator statementCreator, address common.Address) error {
|
|
delete, err := creator.Prepare("DELETE FROM blocks WHERE address = ?")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
_, err = delete.Exec(address)
|
|
return err
|
|
}
|
|
|
|
func getAddresses(creator statementCreator) (rst []common.Address, err error) {
|
|
stmt, err := creator.Prepare(`SELECT address FROM transfers UNION SELECT address FROM blocks UNION
|
|
SELECT address FROM blocks_ranges_sequential UNION SELECT address FROM blocks_ranges`)
|
|
if err != nil {
|
|
return
|
|
}
|
|
rows, err := stmt.Query()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer rows.Close()
|
|
|
|
address := common.Address{}
|
|
for rows.Next() {
|
|
err = rows.Scan(&address)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
rst = append(rst, address)
|
|
}
|
|
|
|
return rst, nil
|
|
}
|