57 lines
2.0 KiB
Go
57 lines
2.0 KiB
Go
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// Copyright © 2018 Vulcanize
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package price_feeds
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import (
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"github.com/vulcanize/vulcanizedb/pkg/core"
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"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
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)
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type IPriceFeedRepository interface {
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Create(model PriceFeedModel) error
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MissingHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error)
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}
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type PriceFeedRepository struct {
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db *postgres.DB
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}
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func NewPriceFeedRepository(db *postgres.DB) PriceFeedRepository {
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return PriceFeedRepository{db: db}
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}
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func (repository PriceFeedRepository) Create(model PriceFeedModel) error {
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_, err := repository.db.Exec(`INSERT INTO maker.price_feeds (block_number, header_id, medianizer_address, usd_value, tx_idx)
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VALUES ($1, $2, $3, $4::NUMERIC, $5)`, model.BlockNumber, model.HeaderID, model.MedianizerAddress, model.UsdValue, model.TransactionIndex)
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return err
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}
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func (repository PriceFeedRepository) MissingHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error) {
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var result []core.Header
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err := repository.db.Select(
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&result,
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`SELECT headers.id, headers.block_number FROM headers
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LEFT JOIN maker.price_feeds on headers.id = header_id
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WHERE header_id ISNULL
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AND headers.block_number >= $1
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AND headers.block_number <= $2
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AND headers.eth_node_fingerprint = $3`,
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startingBlockNumber,
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endingBlockNumber,
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repository.db.Node.ID,
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)
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return result, err
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}
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