当我添加一个新的电影与形式，我希望它有一个类别的id 'all-films'默认情况下。我该怎么办？先谢了。下面是代码：
新电影.tsx -->

const form = useForm({
    resolver: zodResolver(formSchema),
    defaultValues: {
        id:"",
        name: "",
        imageUrl: "",
        filmUrl: "",
    }
})

const onSubmit = async (values: z.infer<typeof formSchema>) => {
    try {
        await axios.post("/api/films", values)
        
        form.reset()
        router.refresh()
        onClose()
    } catch (error) {
        console.log(error);
    }
}

API/films/route.ts -->

import { db } from "@/lib/db";
import { NextResponse } from "next/server";

export async function POST(req: Request){
    try {
        const { id, name, imageUrl, filmUrl } = await req.json()

        const film = await db.film.create({
            data: {
                id,
                name,
                imageUrl,
                filmUrl
            }
        })

        return NextResponse.json(film)
    } catch (error) {
        console.log("[GAMES_POST]", error);
        return new NextResponse("Internal Error", {status: 500})
    }
}

schema.prisma -->

model Category {
  id String @id
  name String
  imageUrl String @db.Text

  films Film[]

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
}

model Film {
  id String @id
  name String
  imageUrl String @db.Text
  filmUrl String @db.Text

  category Category[]

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
}

当我添加一个新的电影与形式，我希望它有一个类别的id 'all-films'默认情况下。我该怎么办？先谢了。下面是代码：