ipld-eth-server/pkg/transformers/price_feeds/repository.go
2019-01-11 10:07:00 -08:00

73 lines
2.4 KiB
Go

// Copyright © 2018 Vulcanize
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package price_feeds
import (
"fmt"
log "github.com/sirupsen/logrus"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
"github.com/vulcanize/vulcanizedb/pkg/transformers/shared/constants"
)
type PriceFeedRepository struct {
db *postgres.DB
}
func (repository PriceFeedRepository) Create(headerID int64, models []interface{}) error {
tx, dBaseErr := repository.db.Begin()
if dBaseErr != nil {
return dBaseErr
}
for _, model := range models {
priceUpdate, ok := model.(PriceFeedModel)
if !ok {
rollbackErr := tx.Rollback()
if rollbackErr != nil {
log.Error("failed to rollback ", rollbackErr)
}
return fmt.Errorf("model of type %T, not %T", model, PriceFeedModel{})
}
_, execErr := tx.Exec(`INSERT INTO maker.price_feeds (block_number, header_id, medianizer_address, usd_value, log_idx, tx_idx, raw_log)
VALUES ($1, $2, $3, $4::NUMERIC, $5, $6, $7)`, priceUpdate.BlockNumber, headerID, priceUpdate.MedianizerAddress, priceUpdate.UsdValue, priceUpdate.LogIndex, priceUpdate.TransactionIndex, priceUpdate.Raw)
if execErr != nil {
rollbackErr := tx.Rollback()
if rollbackErr != nil {
log.Error("failed to rollback ", rollbackErr)
}
return execErr
}
}
checkHeaderErr := shared.MarkHeaderCheckedInTransaction(headerID, tx, constants.PriceFeedsChecked)
if checkHeaderErr != nil {
rollbackErr := tx.Rollback()
if rollbackErr != nil {
log.Error("failed to rollback ", rollbackErr)
}
return checkHeaderErr
}
return tx.Commit()
}
func (repository PriceFeedRepository) MarkHeaderChecked(headerID int64) error {
return shared.MarkHeaderChecked(headerID, repository.db, constants.PriceFeedsChecked)
}
func (repository *PriceFeedRepository) SetDB(db *postgres.DB) {
repository.db = db
}