/
psqlx.go
96 lines (79 loc) · 1.93 KB
/
psqlx.go
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/*
Copyright 2020 Adevinta
*/
package store
import (
"fmt"
"strings"
log "github.com/sirupsen/logrus"
"github.com/jmoiron/sqlx"
_ "github.com/lib/pq" // postgres driver
)
const (
psql = "postgres"
errDuplicateUnique = "pq: duplicate key value violates unique constraint"
errNotFound = "sql: no rows in result set"
)
type psqlxStore struct {
DB *sqlx.DB
logger *log.Logger
}
// NewDB builds and returns a new PSQLx implementation
// of VulnStore interface.
func NewDB(connString string, logger *log.Logger) (VulnStore, error) {
db, err := sqlx.Connect(psql, connString)
if err != nil {
return nil, err
}
_, err = db.Exec("SET TIME ZONE 'UTC'")
if err != nil {
return nil, err
}
return &psqlxStore{
db,
logger,
}, nil
}
// IsDuplicateErr determines if given error is
// a duplicate element error.
func IsDuplicateErr(err error) bool {
return strings.HasPrefix(err.Error(), errDuplicateUnique)
}
// IsNotFoundErr determines if given error is
// a record not found error.
func IsNotFoundErr(err error) bool {
if err == nil {
return false
}
return errNotFound == err.Error()
}
func logQuery(logger *log.Logger, name, query string, args ...interface{}) {
if logger.Level < log.TraceLevel {
return
}
query = strings.ReplaceAll(query, "\t", "")
query = strings.ReplaceAll(query, "\n", " ")
query = buildQueryWithArgs(query, args)
logger.Tracef("%s query: %s", name, query)
}
func buildQueryWithArgs(query string, args []interface{}) string {
if len(args) == 0 {
return query
}
if v, ok := args[0].(map[string]interface{}); ok {
// args as map
for k, v := range v {
tag := fmt.Sprintf(":%s", k)
value := fmt.Sprintf("%v", v)
query = strings.ReplaceAll(query, tag, value)
}
} else {
// args as variadic args list
for i, v := range args {
tag := fmt.Sprintf("$%d", i+1)
value := fmt.Sprintf("%v", v)
query = strings.Replace(query, tag, value, 1)
}
}
return query
}