diff options
Diffstat (limited to 'server/lemmy_db/src/comment_view.rs')
| -rw-r--r-- | server/lemmy_db/src/comment_view.rs | 669 |
1 files changed, 669 insertions, 0 deletions
diff --git a/server/lemmy_db/src/comment_view.rs b/server/lemmy_db/src/comment_view.rs new file mode 100644 index 00000000..914e568c --- /dev/null +++ b/server/lemmy_db/src/comment_view.rs @@ -0,0 +1,669 @@ +// TODO, remove the cross join here, just join to user directly +use crate::{fuzzy_search, limit_and_offset, ListingType, MaybeOptional, SortType}; +use diesel::{dsl::*, pg::Pg, result::Error, *}; +use serde::{Deserialize, Serialize}; + +// The faked schema since diesel doesn't do views +table! { + comment_view (id) { + id -> Int4, + creator_id -> Int4, + post_id -> Int4, + parent_id -> Nullable<Int4>, + content -> Text, + removed -> Bool, + read -> Bool, + published -> Timestamp, + updated -> Nullable<Timestamp>, + deleted -> Bool, + ap_id -> Text, + local -> Bool, + community_id -> Int4, + community_actor_id -> Text, + community_local -> Bool, + community_name -> Varchar, + banned -> Bool, + banned_from_community -> Bool, + creator_actor_id -> Text, + creator_local -> Bool, + creator_name -> Varchar, + creator_published -> Timestamp, + creator_avatar -> Nullable<Text>, + score -> BigInt, + upvotes -> BigInt, + downvotes -> BigInt, + hot_rank -> Int4, + user_id -> Nullable<Int4>, + my_vote -> Nullable<Int4>, + subscribed -> Nullable<Bool>, + saved -> Nullable<Bool>, + } +} + +table! { + comment_fast_view (id) { + id -> Int4, + creator_id -> Int4, + post_id -> Int4, + parent_id -> Nullable<Int4>, + content -> Text, + removed -> Bool, + read -> Bool, + published -> Timestamp, + updated -> Nullable<Timestamp>, + deleted -> Bool, + ap_id -> Text, + local -> Bool, + community_id -> Int4, + community_actor_id -> Text, + community_local -> Bool, + community_name -> Varchar, + banned -> Bool, + banned_from_community -> Bool, + creator_actor_id -> Text, + creator_local -> Bool, + creator_name -> Varchar, + creator_published -> Timestamp, + creator_avatar -> Nullable<Text>, + score -> BigInt, + upvotes -> BigInt, + downvotes -> BigInt, + hot_rank -> Int4, + user_id -> Nullable<Int4>, + my_vote -> Nullable<Int4>, + subscribed -> Nullable<Bool>, + saved -> Nullable<Bool>, + } +} + +#[derive( + Queryable, Identifiable, PartialEq, Debug, Serialize, Deserialize, QueryableByName, Clone, +)] +#[table_name = "comment_fast_view"] +pub struct CommentView { + pub id: i32, + pub creator_id: i32, + pub post_id: i32, + pub parent_id: Option<i32>, + pub content: String, + pub removed: bool, + pub read: bool, + pub published: chrono::NaiveDateTime, + pub updated: Option<chrono::NaiveDateTime>, + pub deleted: bool, + pub ap_id: String, + pub local: bool, + pub community_id: i32, + pub community_actor_id: String, + pub community_local: bool, + pub community_name: String, + pub banned: bool, + pub banned_from_community: bool, + pub creator_actor_id: String, + pub creator_local: bool, + pub creator_name: String, + pub creator_published: chrono::NaiveDateTime, + pub creator_avatar: Option<String>, + pub score: i64, + pub upvotes: i64, + pub downvotes: i64, + pub hot_rank: i32, + pub user_id: Option<i32>, + pub my_vote: Option<i32>, + pub subscribed: Option<bool>, + pub saved: Option<bool>, +} + +pub struct CommentQueryBuilder<'a> { + conn: &'a PgConnection, + query: super::comment_view::comment_fast_view::BoxedQuery<'a, Pg>, + listing_type: ListingType, + sort: &'a SortType, + for_community_id: Option<i32>, + for_post_id: Option<i32>, + for_creator_id: Option<i32>, + search_term: Option<String>, + my_user_id: Option<i32>, + saved_only: bool, + page: Option<i64>, + limit: Option<i64>, +} + +impl<'a> CommentQueryBuilder<'a> { + pub fn create(conn: &'a PgConnection) -> Self { + use super::comment_view::comment_fast_view::dsl::*; + + let query = comment_fast_view.into_boxed(); + + CommentQueryBuilder { + conn, + query, + listing_type: ListingType::All, + sort: &SortType::New, + for_community_id: None, + for_post_id: None, + for_creator_id: None, + search_term: None, + my_user_id: None, + saved_only: false, + page: None, + limit: None, + } + } + + pub fn listing_type(mut self, listing_type: ListingType) -> Self { + self.listing_type = listing_type; + self + } + + pub fn sort(mut self, sort: &'a SortType) -> Self { + self.sort = sort; + self + } + + pub fn for_post_id<T: MaybeOptional<i32>>(mut self, for_post_id: T) -> Self { + self.for_post_id = for_post_id.get_optional(); + self + } + + pub fn for_creator_id<T: MaybeOptional<i32>>(mut self, for_creator_id: T) -> Self { + self.for_creator_id = for_creator_id.get_optional(); + self + } + + pub fn for_community_id<T: MaybeOptional<i32>>(mut self, for_community_id: T) -> Self { + self.for_community_id = for_community_id.get_optional(); + self + } + + pub fn search_term<T: MaybeOptional<String>>(mut self, search_term: T) -> Self { + self.search_term = search_term.get_optional(); + self + } + + pub fn my_user_id<T: MaybeOptional<i32>>(mut self, my_user_id: T) -> Self { + self.my_user_id = my_user_id.get_optional(); + self + } + + pub fn saved_only(mut self, saved_only: bool) -> Self { + self.saved_only = saved_only; + self + } + + pub fn page<T: MaybeOptional<i64>>(mut self, page: T) -> Self { + self.page = page.get_optional(); + self + } + + pub fn limit<T: MaybeOptional<i64>>(mut self, limit: T) -> Self { + self.limit = limit.get_optional(); + self + } + + pub fn list(self) -> Result<Vec<CommentView>, Error> { + use super::comment_view::comment_fast_view::dsl::*; + + let mut query = self.query; + + // The view lets you pass a null user_id, if you're not logged in + if let Some(my_user_id) = self.my_user_id { + query = query.filter(user_id.eq(my_user_id)); + } else { + query = query.filter(user_id.is_null()); + } + + if let Some(for_creator_id) = self.for_creator_id { + query = query.filter(creator_id.eq(for_creator_id)); + }; + + if let Some(for_community_id) = self.for_community_id { + query = query.filter(community_id.eq(for_community_id)); + } + + if let Some(for_post_id) = self.for_post_id { + query = query.filter(post_id.eq(for_post_id)); + }; + + if let Some(search_term) = self.search_term { + query = query.filter(content.ilike(fuzzy_search(&search_term))); + }; + + if let ListingType::Subscribed = self.listing_type { + query = query.filter(subscribed.eq(true)); + } + + if self.saved_only { + query = query.filter(saved.eq(true)); + } + + query = match self.sort { + SortType::Hot => query + .order_by(hot_rank.desc()) + .then_order_by(published.desc()), + SortType::New => query.order_by(published.desc()), + SortType::TopAll => query.order_by(score.desc()), + SortType::TopYear => query + .filter(published.gt(now - 1.years())) + .order_by(score.desc()), + SortType::TopMonth => query + .filter(published.gt(now - 1.months())) + .order_by(score.desc()), + SortType::TopWeek => query + .filter(published.gt(now - 1.weeks())) + .order_by(score.desc()), + SortType::TopDay => query + .filter(published.gt(now - 1.days())) + .order_by(score.desc()), + // _ => query.order_by(published.desc()), + }; + + let (limit, offset) = limit_and_offset(self.page, self.limit); + + // Note: deleted and removed comments are done on the front side + query + .limit(limit) + .offset(offset) + .load::<CommentView>(self.conn) + } +} + +impl CommentView { + pub fn read( + conn: &PgConnection, + from_comment_id: i32, + my_user_id: Option<i32>, + ) -> Result<Self, Error> { + use super::comment_view::comment_fast_view::dsl::*; + let mut query = comment_fast_view.into_boxed(); + + // The view lets you pass a null user_id, if you're not logged in + if let Some(my_user_id) = my_user_id { + query = query.filter(user_id.eq(my_user_id)); + } else { + query = query.filter(user_id.is_null()); + } + + query = query + .filter(id.eq(from_comment_id)) + .order_by(published.desc()); + + query.first::<Self>(conn) + } +} + +// The faked schema since diesel doesn't do views +table! { + reply_fast_view (id) { + id -> Int4, + creator_id -> Int4, + post_id -> Int4, + parent_id -> Nullable<Int4>, + content -> Text, + removed -> Bool, + read -> Bool, + published -> Timestamp, + updated -> Nullable<Timestamp>, + deleted -> Bool, + ap_id -> Text, + local -> Bool, + community_id -> Int4, + community_actor_id -> Text, + community_local -> Bool, + community_name -> Varchar, + banned -> Bool, + banned_from_community -> Bool, + creator_actor_id -> Text, + creator_local -> Bool, + creator_name -> Varchar, + creator_avatar -> Nullable<Text>, + creator_published -> Timestamp, + score -> BigInt, + upvotes -> BigInt, + downvotes -> BigInt, + hot_rank -> Int4, + user_id -> Nullable<Int4>, + my_vote -> Nullable<Int4>, + subscribed -> Nullable<Bool>, + saved -> Nullable<Bool>, + recipient_id -> Int4, + } +} + +#[derive( + Queryable, Identifiable, PartialEq, Debug, Serialize, Deserialize, QueryableByName, Clone, +)] +#[table_name = "reply_fast_view"] +pub struct ReplyView { + pub id: i32, + pub creator_id: i32, + pub post_id: i32, + pub parent_id: Option<i32>, + pub content: String, + pub removed: bool, + pub read: bool, + pub published: chrono::NaiveDateTime, + pub updated: Option<chrono::NaiveDateTime>, + pub deleted: bool, + pub ap_id: String, + pub local: bool, + pub community_id: i32, + pub community_actor_id: String, + pub community_local: bool, + pub community_name: String, + pub banned: bool, + pub banned_from_community: bool, + pub creator_actor_id: String, + pub creator_local: bool, + pub creator_name: String, + pub creator_avatar: Option<String>, + pub creator_published: chrono::NaiveDateTime, + pub score: i64, + pub upvotes: i64, + pub downvotes: i64, + pub hot_rank: i32, + pub user_id: Option<i32>, + pub my_vote: Option<i32>, + pub subscribed: Option<bool>, + pub saved: Option<bool>, + pub recipient_id: i32, +} + +pub struct ReplyQueryBuilder<'a> { + conn: &'a PgConnection, + query: super::comment_view::reply_fast_view::BoxedQuery<'a, Pg>, + for_user_id: i32, + sort: &'a SortType, + unread_only: bool, + page: Option<i64>, + limit: Option<i64>, +} + +impl<'a> ReplyQueryBuilder<'a> { + pub fn create(conn: &'a PgConnection, for_user_id: i32) -> Self { + use super::comment_view::reply_fast_view::dsl::*; + + let query = reply_fast_view.into_boxed(); + + ReplyQueryBuilder { + conn, + query, + for_user_id, + sort: &SortType::New, + unread_only: false, + page: None, + limit: None, + } + } + + pub fn sort(mut self, sort: &'a SortType) -> Self { + self.sort = sort; + self + } + + pub fn unread_only(mut self, unread_only: bool) -> Self { + self.unread_only = unread_only; + self + } + + pub fn page<T: MaybeOptional<i64>>(mut self, page: T) -> Self { + self.page = page.get_optional(); + self + } + + pub fn limit<T: MaybeOptional<i64>>(mut self, limit: T) -> Self { + self.limit = limit.get_optional(); + self + } + + pub fn list(self) -> Result<Vec<ReplyView>, Error> { + use super::comment_view::reply_fast_view::dsl::*; + + let mut query = self.query; + + query = query + .filter(user_id.eq(self.for_user_id)) + .filter(recipient_id.eq(self.for_user_id)) + .filter(deleted.eq(false)) + .filter(removed.eq(false)); + + if self.unread_only { + query = query.filter(read.eq(false)); + } + + query = match self.sort { + // SortType::Hot => query.order_by(hot_rank.desc()), + SortType::New => query.order_by(published.desc()), + SortType::TopAll => query.order_by(score.desc()), + SortType::TopYear => query + .filter(published.gt(now - 1.years())) + .order_by(score.desc()), + SortType::TopMonth => query + .filter(published.gt(now - 1.months())) + .order_by(score.desc()), + SortType::TopWeek => query + .filter(published.gt(now - 1.weeks())) + .order_by(score.desc()), + SortType::TopDay => query + .filter(published.gt(now - 1.days())) + .order_by(score.desc()), + _ => query.order_by(published.desc()), + }; + + let (limit, offset) = limit_and_offset(self.page, self.limit); + query + .limit(limit) + .offset(offset) + .load::<ReplyView>(self.conn) + } +} + +#[cfg(test)] +mod tests { + use crate::{ + comment::*, + comment_view::*, + community::*, + post::*, + tests::establish_unpooled_connection, + user::*, + Crud, + Likeable, + *, + }; + + #[test] + fn test_crud() { + let conn = establish_unpooled_connection(); + + let new_user = UserForm { + name: "timmy".into(), + preferred_username: None, + password_encrypted: "nope".into(), + email: None, + matrix_user_id: None, + avatar: None, + admin: false, + banned: false, + updated: None, + show_nsfw: false, + theme: "darkly".into(), + default_sort_type: SortType::Hot as i16, + default_listing_type: ListingType::Subscribed as i16, + lang: "browser".into(), + show_avatars: true, + send_notifications_to_email: false, + actor_id: "http://fake.com".into(), + bio: None, + local: true, + private_key: None, + public_key: None, + last_refreshed_at: None, + }; + + let inserted_user = User_::create(&conn, &new_user).unwrap(); + + let new_community = CommunityForm { + name: "test community 5".to_string(), + title: "nada".to_owned(), + description: None, + category_id: 1, + creator_id: inserted_user.id, + removed: None, + deleted: None, + updated: None, + nsfw: false, + actor_id: "http://fake.com".into(), + local: true, + private_key: None, + public_key: None, + last_refreshed_at: None, + published: None, + }; + + let inserted_community = Community::create(&conn, &new_community).unwrap(); + + let new_post = PostForm { + name: "A test post 2".into(), + creator_id: inserted_user.id, + url: None, + body: None, + community_id: inserted_community.id, + removed: None, + deleted: None, + locked: None, + stickied: None, + updated: None, + nsfw: false, + embed_title: None, + embed_description: None, + embed_html: None, + thumbnail_url: None, + ap_id: "http://fake.com".into(), + local: true, + published: None, + }; + + let inserted_post = Post::create(&conn, &new_post).unwrap(); + + let comment_form = CommentForm { + content: "A test comment 32".into(), + creator_id: inserted_user.id, + post_id: inserted_post.id, + parent_id: None, + removed: None, + deleted: None, + read: None, + published: None, + updated: None, + ap_id: "http://fake.com".into(), + local: true, + }; + + let inserted_comment = Comment::create(&conn, &comment_form).unwrap(); + + let comment_like_form = CommentLikeForm { + comment_id: inserted_comment.id, + post_id: inserted_post.id, + user_id: inserted_user.id, + score: 1, + }; + + let _inserted_comment_like = CommentLike::like(&conn, &comment_like_form).unwrap(); + + let expected_comment_view_no_user = CommentView { + id: inserted_comment.id, + content: "A test comment 32".into(), + creator_id: inserted_user.id, + post_id: inserted_post.id, + community_id: inserted_community.id, + community_name: inserted_community.name.to_owned(), + parent_id: None, + removed: false, + deleted: false, + read: false, + banned: false, + banned_from_community: false, + published: inserted_comment.published, + updated: None, + creator_name: inserted_user.name.to_owned(), + creator_published: inserted_user.published, + creator_avatar: None, + score: 1, + downvotes: 0, + hot_rank: 0, + upvotes: 1, + user_id: None, + my_vote: None, + subscribed: None, + saved: None, + ap_id: "http://fake.com".to_string(), + local: true, + community_actor_id: inserted_community.actor_id.to_owned(), + community_local: true, + creator_actor_id: inserted_user.actor_id.to_owned(), + creator_local: true, + }; + + let expected_comment_view_with_user = CommentView { + id: inserted_comment.id, + content: "A test comment 32".into(), + creator_id: inserted_user.id, + post_id: inserted_post.id, + community_id: inserted_community.id, + community_name: inserted_community.name.to_owned(), + parent_id: None, + removed: false, + deleted: false, + read: false, + banned: false, + banned_from_community: false, + published: inserted_comment.published, + updated: None, + creator_name: inserted_user.name.to_owned(), + creator_published: inserted_user.published, + creator_avatar: None, + score: 1, + downvotes: 0, + hot_rank: 0, + upvotes: 1, + user_id: Some(inserted_user.id), + my_vote: Some(1), + subscribed: Some(false), + saved: Some(false), + ap_id: "http://fake.com".to_string(), + local: true, + community_actor_id: inserted_community.actor_id.to_owned(), + community_local: true, + creator_actor_id: inserted_user.actor_id.to_owned(), + creator_local: true, + }; + + let mut read_comment_views_no_user = CommentQueryBuilder::create(&conn) + .for_post_id(inserted_post.id) + .list() + .unwrap(); + read_comment_views_no_user[0].hot_rank = 0; + + let mut read_comment_views_with_user = CommentQueryBuilder::create(&conn) + .for_post_id(inserted_post.id) + .my_user_id(inserted_user.id) + .list() + .unwrap(); + read_comment_views_with_user[0].hot_rank = 0; + + let like_removed = CommentLike::remove(&conn, &comment_like_form).unwrap(); + let num_deleted = Comment::delete(&conn, inserted_comment.id).unwrap(); + Post::delete(&conn, inserted_post.id).unwrap(); + Community::delete(&conn, inserted_community.id).unwrap(); + User_::delete(&conn, inserted_user.id).unwrap(); + + assert_eq!(expected_comment_view_no_user, read_comment_views_no_user[0]); + assert_eq!( + expected_comment_view_with_user, + read_comment_views_with_user[0] + ); + assert_eq!(1, num_deleted); + assert_eq!(1, like_removed); + } +} |