clair/database/pgsql/keyvalue.go
Sida Chen 9c49d9dc55 pgsql: Move queries to corresponding files
Aggregate queries in their corresponding files instead of having the
single file for every queries because the database is more complicated.
2018-10-08 10:42:40 -04:00

67 lines
1.7 KiB
Go

// Copyright 2017 clair authors
//
// 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 pgsql
import (
"database/sql"
"time"
log "github.com/sirupsen/logrus"
"github.com/coreos/clair/pkg/commonerr"
)
const (
searchKeyValue = `SELECT value FROM KeyValue WHERE key = $1`
upsertKeyValue = `
INSERT INTO KeyValue(key, value)
VALUES ($1, $2)
ON CONFLICT ON CONSTRAINT keyvalue_key_key
DO UPDATE SET key=$1, value=$2`
)
func (tx *pgSession) UpdateKeyValue(key, value string) (err error) {
if key == "" || value == "" {
log.Warning("could not insert a flag which has an empty name or value")
return commonerr.NewBadRequestError("could not insert a flag which has an empty name or value")
}
defer observeQueryTime("PersistKeyValue", "all", time.Now())
_, err = tx.Exec(upsertKeyValue, key, value)
if err != nil {
return handleError("insertKeyValue", err)
}
return nil
}
func (tx *pgSession) FindKeyValue(key string) (string, bool, error) {
defer observeQueryTime("FindKeyValue", "all", time.Now())
var value string
err := tx.QueryRow(searchKeyValue, key).Scan(&value)
if err == sql.ErrNoRows {
return "", false, nil
}
if err != nil {
return "", false, handleError("searchKeyValue", err)
}
return value, true, nil
}