mirror of
https://github.com/LemmyNet/lemmy.git
synced 2024-05-17 01:12:39 +00:00
544d30f0d4
* add token-based pagination + fast subscribed post view * add migrations * fix failing heuristic * revert * output pagination token as next_page, fix off-by-one, restructure * more cleanup * clean * format sql * fix comment * fix tests * e * empty * move last page thing * restructure a bit for readability * rename page_cursor * update for scaled sort * fix * sql format * fix * get rid of macros --------- Co-authored-by: Dessalines <dessalines@users.noreply.github.com>
82 lines
2.4 KiB
Rust
82 lines
2.4 KiB
Rust
use crate::{
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api::listing_type_with_default,
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fetcher::resolve_actor_identifier,
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objects::community::ApubCommunity,
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};
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use activitypub_federation::config::Data;
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use actix_web::web::{Json, Query};
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use lemmy_api_common::{
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context::LemmyContext,
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post::{GetPosts, GetPostsResponse},
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utils::{check_private_instance, local_user_view_from_jwt_opt_new},
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};
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use lemmy_db_schema::source::{community::Community, local_site::LocalSite};
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use lemmy_db_views::{
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post_view::PostQuery,
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structs::{LocalUserView, PaginationCursor},
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};
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use lemmy_utils::error::{LemmyError, LemmyErrorExt, LemmyErrorType};
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#[tracing::instrument(skip(context))]
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pub async fn list_posts(
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data: Query<GetPosts>,
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context: Data<LemmyContext>,
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mut local_user_view: Option<LocalUserView>,
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) -> Result<Json<GetPostsResponse>, LemmyError> {
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local_user_view_from_jwt_opt_new(&mut local_user_view, data.auth.as_ref(), &context).await;
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let local_site = LocalSite::read(&mut context.pool()).await?;
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check_private_instance(&local_user_view, &local_site)?;
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let sort = data.sort;
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let page = data.page;
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let limit = data.limit;
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let community_id = if let Some(name) = &data.community_name {
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Some(resolve_actor_identifier::<ApubCommunity, Community>(name, &context, &None, true).await?)
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.map(|c| c.id)
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} else {
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data.community_id
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};
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let saved_only = data.saved_only.unwrap_or_default();
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let liked_only = data.liked_only.unwrap_or_default();
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let disliked_only = data.disliked_only.unwrap_or_default();
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if liked_only && disliked_only {
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return Err(LemmyError::from(LemmyErrorType::ContradictingFilters));
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}
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let listing_type = Some(listing_type_with_default(
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data.type_,
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&local_site,
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community_id,
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)?);
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// parse pagination token
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let page_after = if let Some(pa) = &data.page_cursor {
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Some(pa.read(&mut context.pool()).await?)
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} else {
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None
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};
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let posts = PostQuery {
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local_user: local_user_view.as_ref(),
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listing_type,
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sort,
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community_id,
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saved_only,
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liked_only,
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disliked_only,
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page,
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page_after,
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limit,
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..Default::default()
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}
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.list(&mut context.pool())
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.await
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.with_lemmy_type(LemmyErrorType::CouldntGetPosts)?;
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// if this page wasn't empty, then there is a next page after the last post on this page
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let next_page = posts.last().map(PaginationCursor::after_post);
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Ok(Json(GetPostsResponse { posts, next_page }))
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}
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