Add error checking for every occurance of rows.Next()

cmd/backend/users.go

@@ -453,8 +453,6 @@ func (db *DB) AddFirstUser(c *Config, u *User, pass string) (int64, error) {
 
 func (db *DB) GetAllUsers(c *Config) ([]*User, error) {
 	var aesFirstName, aesLastName, aesEmail string
-	var err error
-
 	query := "SELECT id, username, first_name, last_name, email, profile_pic_link, role FROM users"
 
 	rows, err := db.Query(query)
@@ -487,6 +485,10 @@ func (db *DB) GetAllUsers(c *Config) ([]*User, error) {
 		users = append(users, user)
 	}
 
+	if err = rows.Err(); err != nil {
+		return nil, fmt.Errorf("error iterating over rows: %v", err)
+	}
+
 	return users, nil
 }
 
@@ -526,6 +528,10 @@ func (db *DB) GetAllUsersMap(c *Config) (map[int64]*User, error) {
 		users[user.ID] = user
 	}
 
+	if err = rows.Err(); err != nil {
+		return nil, fmt.Errorf("error iterating over rows: %v", err)
+	}
+
 	return users, nil
 }