Backend: add a file for globals in the db package.

Author: paveloom

backend/db/globals.go

@@ -0,0 +1,7 @@
+package db
+
+import "database/sql"
+
+var db *sql.DB
+
+type UserID = int

backend/db/main.go

@@ -1,7 +1,6 @@
 package db
 
 import (
-	"database/sql"
 	"flag"
 	"fmt"
 	"log"
@@ -10,8 +9,6 @@ import (
 	"flowey/utils"
 )
 
-var db *sql.DB
-
 func Main(args []string) {
 	defaultPath, err := utils.GetDefaultPath()
 	if err != nil {

backend/db/session.go

@@ -22,7 +22,7 @@ type Credentials struct {
 }
 
 func AuthenticateByCredentials(credentials Credentials) (int, error) {
-	var userID int
+	var userID UserID
 	var hashedPassword string
 
 	query := `SELECT id, password FROM users WHERE username = ?`
@@ -44,7 +44,7 @@ func AuthenticateByCredentials(credentials Credentials) (int, error) {
 }
 
 func AuthenticateBySessionKey(sessionKey string) (int, error) {
-	var userID int
+	var userID UserID
 
 	query := `SELECT user_id FROM sessions WHERE session_key = ?`
 	err := db.QueryRow(query, sessionKey).Scan(&userID)
@@ -59,7 +59,7 @@ func AuthenticateBySessionKey(sessionKey string) (int, error) {
 	return userID, nil
 }
 
-func CreateSessionKey(userID int) (string, error) {
+func CreateSessionKey(userID UserID) (string, error) {
 	byteSessionKey := make([]byte, 40)
 	if _, err := rand.Read(byteSessionKey); err != nil {
 		log.Println(err)