Turkish movie

Well, actually I need a movie. It is Turkish movie where husband and wife lives in the city and they leave the city with the train and they go somewhere and they continue to live in a van with their son. And after some time the husband works in the school as a writer or typer, I don't know actually, maybe the assistant of the principal. And the wife gets pregnant but he dies and the husband will be alone with his son. So they will be alone and after that they leave the van and move to another city and the son makes a friend whose legs don't work, so he is like invalid. And the son falls in love with one girl of the rich man of the city but the rich man refuses and rejects this boy. But the son escapes the city with the girl to their old van.