Insert

INSERT Movie {
    title := 'Dune',
    year := 2020,
    image := 'dune2020.jpg',
    directors := (
        SELECT Person
        FILTER
            .full_name = 'Denis Villeneuve'
    )
}

WITH
    # Cast the JSON $input into a tuple, which we will
    # use to populate the Person record.
    data := <tuple<
        title: str,
        year: int64,
        image: str,
        directors: array<str>,
        actors: array<str>
    >> <json>$input
INSERT Movie {
    title := data.title,
    year := data.year,
    image := data.image,
    directors := (
        SELECT Person
        FILTER
            .full_name IN array_unpack(data.directors)
    ),
    actors := (
        SELECT Person
        FILTER
            .full_name IN array_unpack(data.actors)
    )
}

# Create a new review and a new user in one step.
INSERT Review {
    body := 'Dune is cool',
    rating := 5,
    # The movie record already exists, so SELECT it.
    movie := (
        SELECT Movie
        FILTER
            .title = 'Dune'
            AND
            .year = 2020
        # the LIMIT is needed to satisfy the single
        # link requirement validation
        LIMIT 1
    ),
    # This is a new user, so INSERT one.
    author := (
        INSERT User {
            name := 'dune_fan_2020',
            image := 'default_avatar.jpg',
        }
    )
}

WITH MODULE people
SELECT (
    # Try to create a new Person,
    INSERT Person {
        name := "Łukasz Langa",
        is_admin := true
    }

    # but if a Person with this name already exists,
    UNLESS CONFLICT ON .name
    ELSE (
        # update that Person's record instead.
        UPDATE Person
        SET {
            is_admin := true
        }
    )
) {
    name,
    is_admin
};