ipld-eth-server/pkg/transformers/vat_grab/repository.go
Elizabeth bd428e752a Update vat grab to use transformer factory (#85)
* Update vat grab to use transformer factory
2018-10-26 11:02:39 -05:00

74 lines
2.1 KiB
Go

package vat_grab
import (
"fmt"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
)
type VatGrabRepository struct {
db *postgres.DB
}
func (repository VatGrabRepository) Create(headerID int64, models []interface{}) error {
tx, err := repository.db.Begin()
if err != nil {
return err
}
for _, model := range models {
vatGrab, ok := model.(VatGrabModel)
if !ok {
tx.Rollback()
return fmt.Errorf("model of type %T, not %T", model, VatGrabModel{})
}
_, err = tx.Exec(
`INSERT into maker.vat_grab (header_id, ilk, urn, v, w, dink, dart, log_idx, tx_idx, raw_log)
VALUES($1, $2, $3, $4, $5, $6::NUMERIC, $7::NUMERIC, $8, $9, $10)`,
headerID, vatGrab.Ilk, vatGrab.Urn, vatGrab.V, vatGrab.W, vatGrab.Dink, vatGrab.Dart, vatGrab.LogIndex, vatGrab.TransactionIndex, vatGrab.Raw,
)
if err != nil {
tx.Rollback()
return err
}
}
_, err = tx.Exec(`INSERT INTO public.checked_headers (header_id, vat_grab_checked)
VALUES ($1, $2)
ON CONFLICT (header_id) DO
UPDATE SET vat_grab_checked = $2`, headerID, true)
if err != nil {
tx.Rollback()
return err
}
return tx.Commit()
}
func (repository VatGrabRepository) MarkHeaderChecked(headerID int64) error {
_, err := repository.db.Exec(`INSERT INTO public.checked_headers (header_id, vat_grab_checked)
VALUES ($1, $2)
ON CONFLICT (header_id) DO
UPDATE SET vat_grab_checked = $2`, headerID, true)
return err
}
func (repository VatGrabRepository) MissingHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error) {
var result []core.Header
err := repository.db.Select(
&result,
`SELECT headers.id, headers.block_number FROM headers
LEFT JOIN checked_headers on headers.id = header_id
WHERE (header_id ISNULL OR vat_grab_checked IS FALSE)
AND headers.block_number >= $1
AND headers.block_number <= $2
AND headers.eth_node_fingerprint = $3`,
startingBlockNumber,
endingBlockNumber,
repository.db.Node.ID,
)
return result, err
}
func (repository *VatGrabRepository) SetDB(db *postgres.DB) {
repository.db = db
}