diesel-rs/diesel

Hi, I have a question about many to many realtions. I have the follwing tables

CREATE TABLE articles
(
    id          SERIAL       NOT NULL UNIQUE PRIMARY KEY,
    urn_title   VARCHAR(50)  NOT NULL UNIQUE,
    title       VARCHAR(50)  NOT NULL UNIQUE,
    tags        TEXT[]       NOT NULL,
    description VARCHAR(200) NOT NULL,
    authors     TEXT[]        NOT NULL,
    edit_count  INTEGER      NOT NULL DEFAULT 0,
    last_edited TIMESTAMP             DEFAULT current_timestamp NOT NULL,
    status      BOOLEAN      NOT NULL DEFAULT true,
    publicized  BOOLEAN      NOT NULL DEFAULT false,
    featured    BOOLEAN      NOT NULL DEFAULT false
);

CREATE TABLE users
(
    id            TEXT    NOT NULL PRIMARY KEY,
    username      TEXT    NOT NULL,
    discriminator TEXT    NOT NULL,
    avatar        TEXT    NOT NULL,
    rank          INTEGER NOT NULL DEFAULT 1,
    contributed_articles      INT[]
);

CREATE TABLE user_articles
(
    author_id  TEXT REFERENCES users,
    article_id INT REFERENCES articles,
    PRIMARY KEY (article_id, author_id)
);

The following code returns an empty array

#[derive(Queryable, Associations, Identifiable)]
#[belongs_to(ArticleModel, foreign_key = "article_id")]
#[belongs_to(UserModel, foreign_key = "author_id")]
#[primary_key(article_id, author_id)]
pub struct UserArticle {
    author_id: String,
    article_id: i32,
}

impl UserArticle {
    pub fn find_user_articles(user: &UserModel, conn: &PgConnection) -> Result<Vec<ArticleModel>, diesel::result::Error>{
        UserArticle::belonging_to(user)
            .inner_join(articles::table)
            .select(ARTICLE_COLUMNS)
            .load::<ArticleModel>(conn)
    }
}

I was wondering if I need to insert anything into user_articlesin order to be able to do many to many realtions. In this scenario, a user can have many articles and a articles can have many users (contributers). I have trired reading up on many to many and have read the stackoverflow question on many to many in diesel but I am still confused. Thank you for any help!