121 lines
2.7 KiB
Go
121 lines
2.7 KiB
Go
package wallet
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import (
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"bytes"
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"database/sql"
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/types"
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)
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const baseTransfersQuery = "SELECT hash, type, blk_hash, blk_number, timestamp, address, tx, sender, receipt, log FROM transfers"
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func newTransfersQuery() *transfersQuery {
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buf := bytes.NewBuffer(nil)
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buf.WriteString(baseTransfersQuery)
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return &transfersQuery{buf: buf}
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}
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type transfersQuery struct {
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buf *bytes.Buffer
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args []interface{}
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added bool
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}
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func (q *transfersQuery) andOrWhere() {
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if q.added {
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q.buf.WriteString(" AND")
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} else {
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q.buf.WriteString(" WHERE")
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}
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}
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func (q *transfersQuery) FilterStart(start *big.Int) *transfersQuery {
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if start != nil {
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q.andOrWhere()
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q.added = true
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q.buf.WriteString(" blk_number >= ?")
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q.args = append(q.args, (*SQLBigInt)(start))
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}
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return q
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}
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func (q *transfersQuery) FilterEnd(end *big.Int) *transfersQuery {
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if end != nil {
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q.andOrWhere()
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q.added = true
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q.buf.WriteString(" blk_number <= ?")
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q.args = append(q.args, (*SQLBigInt)(end))
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}
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return q
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}
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func (q *transfersQuery) FilterLoaded(loaded int) *transfersQuery {
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q.andOrWhere()
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q.added = true
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q.buf.WriteString(" loaded = ? ")
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q.args = append(q.args, loaded)
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return q
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}
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func (q *transfersQuery) FilterNetwork(network uint64) *transfersQuery {
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q.andOrWhere()
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q.added = true
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q.buf.WriteString(" network_id = ?")
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q.args = append(q.args, network)
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return q
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}
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func (q *transfersQuery) FilterAddress(address common.Address) *transfersQuery {
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q.andOrWhere()
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q.added = true
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q.buf.WriteString(" address = ?")
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q.args = append(q.args, address)
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return q
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}
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func (q *transfersQuery) FilterBlockHash(blockHash common.Hash) *transfersQuery {
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q.andOrWhere()
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q.added = true
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q.buf.WriteString(" blk_hash = ?")
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q.args = append(q.args, blockHash)
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return q
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}
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func (q *transfersQuery) Limit(pageSize int64) *transfersQuery {
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q.buf.WriteString(" ORDER BY blk_number DESC, hash ASC ")
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q.buf.WriteString(" LIMIT ?")
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q.args = append(q.args, pageSize)
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return q
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}
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func (q *transfersQuery) String() string {
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return q.buf.String()
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}
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func (q *transfersQuery) Args() []interface{} {
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return q.args
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}
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func (q *transfersQuery) Scan(rows *sql.Rows) (rst []Transfer, err error) {
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for rows.Next() {
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transfer := Transfer{
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BlockNumber: &big.Int{},
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Transaction: &types.Transaction{},
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Receipt: &types.Receipt{},
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Log: &types.Log{},
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}
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err = rows.Scan(
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&transfer.ID, &transfer.Type, &transfer.BlockHash,
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(*SQLBigInt)(transfer.BlockNumber), &transfer.Timestamp, &transfer.Address,
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&JSONBlob{transfer.Transaction}, &transfer.From, &JSONBlob{transfer.Receipt}, &JSONBlob{transfer.Log})
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if err != nil {
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return nil, err
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}
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rst = append(rst, transfer)
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}
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return rst, nil
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}
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