refactor error handling in flip_deal
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f655997fde
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08ac7f18a5
@ -19,6 +19,7 @@ import (
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"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
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"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
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"github.com/vulcanize/vulcanizedb/pkg/transformers/shared/constants"
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"log"
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)
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type DealRepository struct {
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@ -26,33 +27,42 @@ type DealRepository struct {
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}
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func (repository DealRepository) Create(headerID int64, models []interface{}) error {
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tx, err := repository.db.Begin()
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if err != nil {
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return err
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tx, dBaseErr := repository.db.Begin()
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if dBaseErr != nil {
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return dBaseErr
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}
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for _, model := range models {
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dealModel, ok := model.(DealModel)
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if !ok {
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tx.Rollback()
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rollbackErr := tx.Rollback()
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if rollbackErr != nil {
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log.Println("failed to rollback ", rollbackErr)
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}
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return fmt.Errorf("model of type %T, not %T", model, DealModel{})
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}
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_, err = tx.Exec(
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_, execErr := tx.Exec(
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`INSERT into maker.deal (header_id, bid_id, contract_address, log_idx, tx_idx, raw_log)
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VALUES($1, $2, $3, $4, $5, $6)`,
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headerID, dealModel.BidId, dealModel.ContractAddress, dealModel.LogIndex, dealModel.TransactionIndex, dealModel.Raw,
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)
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if err != nil {
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tx.Rollback()
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return err
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if execErr != nil {
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rollbackErr := tx.Rollback()
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if rollbackErr != nil {
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log.Println("failed to rollback ", rollbackErr)
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}
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return execErr
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}
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}
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err = shared.MarkHeaderCheckedInTransaction(headerID, tx, constants.DealChecked)
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if err != nil {
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tx.Rollback()
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return err
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checkHeaderErr := shared.MarkHeaderCheckedInTransaction(headerID, tx, constants.DealChecked)
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if checkHeaderErr != nil {
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rollbackErr := tx.Rollback()
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if rollbackErr != nil {
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log.Println("failed to rollback ", rollbackErr)
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}
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return checkHeaderErr
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}
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return tx.Commit()
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}
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