ipld-eth-server/pkg/transformers/frob/repository.go

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2018-08-09 21:55:02 +00:00
// 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 frob
import (
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
)
type Repository interface {
Create(headerID int64, transactionIndex uint, model FrobModel) error
MissingHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error)
}
type FrobRepository struct {
db *postgres.DB
}
func NewFrobRepository(db *postgres.DB) FrobRepository {
return FrobRepository{db: db}
}
func (repository FrobRepository) Create(headerID int64, transactionIndex uint, model FrobModel) error {
_, err := repository.db.Exec(`INSERT INTO maker.frob (header_id, tx_idx, art, era, gem, ilk, ink, lad)
VALUES($1, $2, $3::NUMERIC, $4::NUMERIC, $5::NUMERIC, $6, $7::NUMERIC, $8)`,
headerID, transactionIndex, model.Art, model.Era, model.Gem, model.Ilk, model.Ink, model.Lad)
return err
}
func (repository FrobRepository) 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 maker.frob on headers.id = header_id
WHERE header_id ISNULL
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
}