Files
calorie-counter/db.go
2024-08-09 15:06:10 +02:00

57 lines
1.1 KiB
Go

package main
import (
"database/sql"
"fmt"
"time"
_ "github.com/mattn/go-sqlite3"
)
type DB struct {
path string
readConn *sql.DB
writeConn *sql.DB
}
func (db *DB) Open() error {
if db.path == "" {
return fmt.Errorf("database path not set")
}
writeConn, err := sql.Open("sqlite3", db.path+"?_journal=WAL&_synchronous=NORMAL")
if err != nil {
Error.Printf("%++v", err)
return err
}
writeConn.SetMaxOpenConns(1)
writeConn.SetConnMaxIdleTime(30 * time.Second)
writeConn.SetConnMaxLifetime(30 * time.Second)
db.writeConn = writeConn
readConn, err := sql.Open("sqlite3", db.path+"?mode=ro&_journal=WAL&_synchronous=NORMAL&_mode=ro")
if err != nil {
Error.Printf("%++v", err)
return err
}
readConn.SetMaxOpenConns(4)
readConn.SetConnMaxIdleTime(30 * time.Second)
readConn.SetConnMaxLifetime(30 * time.Second)
db.readConn = readConn
return nil
}
func (db *DB) Close() error {
err := db.writeConn.Close()
if err != nil {
return err
}
err = db.readConn.Close()
if err != nil {
return err
}
return nil
}