extern crate diesel;

use backend::models::*;
use backend::*;
use diesel::prelude::*;

type DbError = Box<dyn std::error::Error + Send + Sync>;

pub fn list_pictures(conn: &PgConnection) -> Result<Vec<Picture>, DbError> {
    use self::schema::pictures::dsl::*;

    Ok(pictures
        .limit(50)
        .order_by(created_at.desc())
        .load::<Picture>(conn)?)
}