aea9c7b5e2
* Separate Repository into multiple Repositories * Use struct scan for transactions * Use struct scan for blocks * Remove unused block repo methods * Update naming * Rename / Cleanup repository related fields
69 lines
1.9 KiB
Go
69 lines
1.9 KiB
Go
package postgres
|
|
|
|
import (
|
|
"database/sql"
|
|
|
|
"github.com/vulcanize/vulcanizedb/pkg/core"
|
|
"github.com/vulcanize/vulcanizedb/pkg/repositories"
|
|
)
|
|
|
|
func (db DB) CreateContract(contract core.Contract) error {
|
|
abi := contract.Abi
|
|
var abiToInsert *string
|
|
if abi != "" {
|
|
abiToInsert = &abi
|
|
}
|
|
_, err := db.DB.Exec(
|
|
`INSERT INTO watched_contracts (contract_hash, contract_abi)
|
|
VALUES ($1, $2)
|
|
ON CONFLICT (contract_hash)
|
|
DO UPDATE
|
|
SET contract_hash = $1, contract_abi = $2
|
|
`, contract.Hash, abiToInsert)
|
|
if err != nil {
|
|
return ErrDBInsertFailed
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (db DB) ContractExists(contractHash string) bool {
|
|
var exists bool
|
|
db.DB.QueryRow(
|
|
`SELECT exists(
|
|
SELECT 1
|
|
FROM watched_contracts
|
|
WHERE contract_hash = $1)`, contractHash).Scan(&exists)
|
|
return exists
|
|
}
|
|
|
|
func (db DB) FindContract(contractHash string) (core.Contract, error) {
|
|
var hash string
|
|
var abi string
|
|
contract := db.DB.QueryRow(
|
|
`SELECT contract_hash, contract_abi FROM watched_contracts WHERE contract_hash=$1`, contractHash)
|
|
err := contract.Scan(&hash, &abi)
|
|
if err == sql.ErrNoRows {
|
|
return core.Contract{}, repositories.ErrContractDoesNotExist(contractHash)
|
|
}
|
|
savedContract := db.addTransactions(core.Contract{Hash: hash, Abi: abi})
|
|
return savedContract, nil
|
|
}
|
|
|
|
func (db DB) addTransactions(contract core.Contract) core.Contract {
|
|
transactionRows, _ := db.DB.Queryx(`
|
|
SELECT tx_hash,
|
|
tx_nonce,
|
|
tx_to,
|
|
tx_from,
|
|
tx_gaslimit,
|
|
tx_gasprice,
|
|
tx_value,
|
|
tx_input_data
|
|
FROM transactions
|
|
WHERE tx_to = $1
|
|
ORDER BY block_id DESC`, contract.Hash)
|
|
transactions := db.loadTransactions(transactionRows)
|
|
savedContract := core.Contract{Hash: contract.Hash, Transactions: transactions, Abi: contract.Abi}
|
|
return savedContract
|
|
}
|