Method activity

backend/src/graphql/view.rs:33–68

(
        &self,
        ctx: &Context<'_>,
        after: Option<String>,
        before: Option<String>,
        first: Option<i32>,
        last: Option<i32>,
        topic_id: Option<String>,
    

#[Object]
impl View {
    async fn activity(
        &self,
        ctx: &Context<'_>,
        after: Option<String>,
        before: Option<String>,
        first: Option<i32>,
        last: Option<i32>,
        topic_id: Option<String>,
    ) -> Result<ActivityLineItemConnection> {
        let store = ctx.data_unchecked::<Store>();
        let repo_id = RepoId::wiki();
        let topic_id: Option<ExternalId> = match topic_id {
            Some(topic_id) => Some(topic_id.try_into()?),
            None => None,
        };

        let activity = store
            .activity(repo_id, &topic_id, first.unwrap_or(3))
            .await?;

        let mut results = vec![];
        for change in activity {
            let actor = store.user_loader.load_one(change.actor_id()).await?;
            let actor_name = actor
                .map(|user| user.name)
                .unwrap_or_else(|| "[missing user]".to_owned());

            let markdown = change.markdown(Locale::EN, &actor_name, None);
            results.push(ActivityLineItem {
                created_at: change.date(),
                description: markdown,
            });
        }

        relay::connection(after, before, first, last, results).await
    }

    async fn link(&self, ctx: &Context<'_>, id: String) -> Result<Option<Link>> {
        Ok(ctx