feat: add sql request for getting game

storage/dao/postgresql/database_postgresql_games.go

@@ -1,13 +1,37 @@
 package postgresql
 
-import "hamster-tycoon/storage/model"
+import (
+	"database/sql"
+	"github.com/lib/pq"
+	"hamster-tycoon/storage/dao"
+	"hamster-tycoon/storage/model"
+)
 
 func (db *DatabasePostgreSQL) GetAllGames() ([]*model.Game, error) {
 	return nil, nil
 }
 
 func (db *DatabasePostgreSQL) GetGameById(string) (*model.Game, error) {
-	return nil, nil
+	q := `
+		SELECT g.id, g.server_id, g.user_id, g.created_at, g.updated_at
+		FROM public.game g
+		WHERE g.id = $1
+	`
+	row := db.session.QueryRow(q, id)
+
+	server := model.Server{}
+	user := model.User{}
+	game := model.Game{
+		Server: server,
+	}
+	err := row.Scan(&game.ID, &server.ID, &user.ID, &game.CreatedAt, &game.UpdatedAt)
+	if errPq, ok := err.(*pq.Error); ok {
+		return nil, handlePgError(errPq)
+	}
+	if err == sql.ErrNoRows {
+		return nil, dao.NewDAOError(dao.ErrTypeNotFound, err)
+	}
+	return &game, err
 }
 
 func (db *DatabasePostgreSQL) CreateGame(*model.Game) error {