627 lines
18 KiB
Rust
627 lines
18 KiB
Rust
use diesel::{pg::Pg, result::Error, *};
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use lemmy_db_queries::{
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aggregates::post_aggregates::PostAggregates,
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functions::hot_rank,
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fuzzy_search,
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limit_and_offset,
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ListingType,
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MaybeOptional,
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SortType,
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ToSafe,
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ViewToVec,
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};
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use lemmy_db_schema::{
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schema::{
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community,
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community_follower,
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community_person_ban,
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person,
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post,
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post_aggregates,
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post_like,
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post_read,
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post_saved,
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},
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source::{
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community::{Community, CommunityFollower, CommunityPersonBan, CommunitySafe},
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person::{Person, PersonSafe},
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post::{Post, PostRead, PostSaved},
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},
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CommunityId,
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PersonId,
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PostId,
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};
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use log::debug;
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use serde::Serialize;
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#[derive(Debug, PartialEq, Serialize, Clone)]
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pub struct PostView {
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pub post: Post,
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pub creator: PersonSafe,
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pub community: CommunitySafe,
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pub creator_banned_from_community: bool, // Left Join to CommunityPersonBan
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pub counts: PostAggregates,
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pub subscribed: bool, // Left join to CommunityFollower
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pub saved: bool, // Left join to PostSaved
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pub read: bool, // Left join to PostRead
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pub my_vote: Option<i16>, // Left join to PostLike
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}
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type PostViewTuple = (
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Post,
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PersonSafe,
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CommunitySafe,
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Option<CommunityPersonBan>,
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PostAggregates,
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Option<CommunityFollower>,
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Option<PostSaved>,
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Option<PostRead>,
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Option<i16>,
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);
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impl PostView {
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pub fn read(
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conn: &PgConnection,
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post_id: PostId,
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my_person_id: Option<PersonId>,
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) -> Result<Self, Error> {
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// The left join below will return None in this case
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let person_id_join = my_person_id.unwrap_or(PersonId(-1));
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let (
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post,
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creator,
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community,
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creator_banned_from_community,
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counts,
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follower,
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saved,
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read,
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post_like,
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) = post::table
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.find(post_id)
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.inner_join(person::table)
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.inner_join(community::table)
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.left_join(
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community_person_ban::table.on(
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post::community_id
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.eq(community_person_ban::community_id)
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.and(community_person_ban::person_id.eq(post::creator_id)),
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),
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)
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.inner_join(post_aggregates::table)
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.left_join(
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community_follower::table.on(
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post::community_id
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.eq(community_follower::community_id)
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.and(community_follower::person_id.eq(person_id_join)),
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),
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)
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.left_join(
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post_saved::table.on(
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post::id
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.eq(post_saved::post_id)
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.and(post_saved::person_id.eq(person_id_join)),
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),
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)
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.left_join(
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post_read::table.on(
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post::id
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.eq(post_read::post_id)
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.and(post_read::person_id.eq(person_id_join)),
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),
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)
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.left_join(
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post_like::table.on(
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post::id
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.eq(post_like::post_id)
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.and(post_like::person_id.eq(person_id_join)),
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),
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)
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.select((
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post::all_columns,
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Person::safe_columns_tuple(),
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Community::safe_columns_tuple(),
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community_person_ban::all_columns.nullable(),
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post_aggregates::all_columns,
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community_follower::all_columns.nullable(),
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post_saved::all_columns.nullable(),
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post_read::all_columns.nullable(),
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post_like::score.nullable(),
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))
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.first::<PostViewTuple>(conn)?;
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// If a person is given, then my_vote, if None, should be 0, not null
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// Necessary to differentiate between other person's votes
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let my_vote = if my_person_id.is_some() && post_like.is_none() {
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Some(0)
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} else {
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post_like
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};
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Ok(PostView {
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post,
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creator,
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community,
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creator_banned_from_community: creator_banned_from_community.is_some(),
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counts,
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subscribed: follower.is_some(),
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saved: saved.is_some(),
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read: read.is_some(),
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my_vote,
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})
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}
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}
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pub struct PostQueryBuilder<'a> {
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conn: &'a PgConnection,
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listing_type: &'a ListingType,
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sort: &'a SortType,
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creator_id: Option<PersonId>,
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community_id: Option<CommunityId>,
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community_name: Option<String>,
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my_person_id: Option<PersonId>,
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search_term: Option<String>,
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url_search: Option<String>,
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show_nsfw: bool,
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saved_only: bool,
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unread_only: bool,
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page: Option<i64>,
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limit: Option<i64>,
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}
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impl<'a> PostQueryBuilder<'a> {
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pub fn create(conn: &'a PgConnection) -> Self {
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PostQueryBuilder {
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conn,
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listing_type: &ListingType::All,
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sort: &SortType::Hot,
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creator_id: None,
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community_id: None,
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community_name: None,
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my_person_id: None,
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search_term: None,
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url_search: None,
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show_nsfw: true,
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saved_only: false,
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unread_only: false,
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page: None,
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limit: None,
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}
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}
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pub fn listing_type(mut self, listing_type: &'a ListingType) -> Self {
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self.listing_type = listing_type;
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self
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}
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pub fn sort(mut self, sort: &'a SortType) -> Self {
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self.sort = sort;
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self
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}
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pub fn community_id<T: MaybeOptional<CommunityId>>(mut self, community_id: T) -> Self {
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self.community_id = community_id.get_optional();
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self
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}
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pub fn my_person_id<T: MaybeOptional<PersonId>>(mut self, my_person_id: T) -> Self {
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self.my_person_id = my_person_id.get_optional();
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self
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}
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pub fn community_name<T: MaybeOptional<String>>(mut self, community_name: T) -> Self {
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self.community_name = community_name.get_optional();
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self
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}
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pub fn creator_id<T: MaybeOptional<PersonId>>(mut self, creator_id: T) -> Self {
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self.creator_id = creator_id.get_optional();
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self
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}
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pub fn search_term<T: MaybeOptional<String>>(mut self, search_term: T) -> Self {
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self.search_term = search_term.get_optional();
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self
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}
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pub fn url_search<T: MaybeOptional<String>>(mut self, url_search: T) -> Self {
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self.url_search = url_search.get_optional();
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self
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}
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pub fn show_nsfw(mut self, show_nsfw: bool) -> Self {
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self.show_nsfw = show_nsfw;
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self
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}
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pub fn saved_only(mut self, saved_only: bool) -> Self {
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self.saved_only = saved_only;
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self
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}
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pub fn page<T: MaybeOptional<i64>>(mut self, page: T) -> Self {
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self.page = page.get_optional();
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self
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}
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pub fn limit<T: MaybeOptional<i64>>(mut self, limit: T) -> Self {
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self.limit = limit.get_optional();
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self
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}
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pub fn list(self) -> Result<Vec<PostView>, Error> {
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use diesel::dsl::*;
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// The left join below will return None in this case
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let person_id_join = self.my_person_id.unwrap_or(PersonId(-1));
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let mut query = post::table
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.inner_join(person::table)
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.inner_join(community::table)
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.left_join(
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community_person_ban::table.on(
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post::community_id
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.eq(community_person_ban::community_id)
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.and(community_person_ban::person_id.eq(community::creator_id)),
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),
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)
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.inner_join(post_aggregates::table)
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.left_join(
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community_follower::table.on(
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post::community_id
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.eq(community_follower::community_id)
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.and(community_follower::person_id.eq(person_id_join)),
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),
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)
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.left_join(
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post_saved::table.on(
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post::id
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.eq(post_saved::post_id)
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.and(post_saved::person_id.eq(person_id_join)),
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),
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)
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.left_join(
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post_read::table.on(
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post::id
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.eq(post_read::post_id)
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.and(post_read::person_id.eq(person_id_join)),
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),
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)
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.left_join(
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post_like::table.on(
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post::id
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.eq(post_like::post_id)
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.and(post_like::person_id.eq(person_id_join)),
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),
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)
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.select((
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post::all_columns,
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Person::safe_columns_tuple(),
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Community::safe_columns_tuple(),
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community_person_ban::all_columns.nullable(),
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post_aggregates::all_columns,
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community_follower::all_columns.nullable(),
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post_saved::all_columns.nullable(),
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post_read::all_columns.nullable(),
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post_like::score.nullable(),
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))
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.into_boxed();
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query = match self.listing_type {
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ListingType::Subscribed => query.filter(community_follower::person_id.is_not_null()), // TODO could be this: and(community_follower::person_id.eq(person_id_join)),
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ListingType::Local => query.filter(community::local.eq(true)),
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_ => query,
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};
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if let Some(community_id) = self.community_id {
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query = query
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.filter(post::community_id.eq(community_id))
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.then_order_by(post_aggregates::stickied.desc());
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}
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if let Some(community_name) = self.community_name {
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query = query
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.filter(community::name.eq(community_name))
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.filter(community::local.eq(true))
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.then_order_by(post_aggregates::stickied.desc());
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}
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if let Some(url_search) = self.url_search {
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query = query.filter(post::url.eq(url_search));
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}
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if let Some(search_term) = self.search_term {
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let searcher = fuzzy_search(&search_term);
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query = query.filter(
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post::name
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.ilike(searcher.to_owned())
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.or(post::body.ilike(searcher)),
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);
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}
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// If its for a specific person, show the removed / deleted
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if let Some(creator_id) = self.creator_id {
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query = query.filter(post::creator_id.eq(creator_id));
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}
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if !self.show_nsfw {
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query = query
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.filter(post::nsfw.eq(false))
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.filter(community::nsfw.eq(false));
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};
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// TODO These two might be wrong
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if self.saved_only {
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query = query.filter(post_saved::id.is_not_null());
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};
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if self.unread_only {
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query = query.filter(post_read::id.is_not_null());
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};
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query = match self.sort {
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SortType::Active => query
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.then_order_by(
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hot_rank(
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post_aggregates::score,
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post_aggregates::newest_comment_time_necro,
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)
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.desc(),
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)
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.then_order_by(post_aggregates::newest_comment_time_necro.desc()),
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SortType::Hot => query
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.then_order_by(hot_rank(post_aggregates::score, post_aggregates::published).desc())
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.then_order_by(post_aggregates::published.desc()),
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SortType::New => query.then_order_by(post_aggregates::published.desc()),
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SortType::MostComments => query.then_order_by(post_aggregates::comments.desc()),
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SortType::NewComments => query.then_order_by(post_aggregates::newest_comment_time.desc()),
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SortType::TopAll => query.then_order_by(post_aggregates::score.desc()),
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SortType::TopYear => query
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.filter(post::published.gt(now - 1.years()))
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.then_order_by(post_aggregates::score.desc()),
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SortType::TopMonth => query
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.filter(post::published.gt(now - 1.months()))
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.then_order_by(post_aggregates::score.desc()),
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SortType::TopWeek => query
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.filter(post::published.gt(now - 1.weeks()))
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.then_order_by(post_aggregates::score.desc()),
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SortType::TopDay => query
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.filter(post::published.gt(now - 1.days()))
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.then_order_by(post_aggregates::score.desc()),
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};
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let (limit, offset) = limit_and_offset(self.page, self.limit);
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query = query
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.limit(limit)
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.offset(offset)
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.filter(post::removed.eq(false))
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.filter(post::deleted.eq(false))
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.filter(community::removed.eq(false))
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.filter(community::deleted.eq(false));
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debug!("Post View Query: {:?}", debug_query::<Pg, _>(&query));
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let res = query.load::<PostViewTuple>(self.conn)?;
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Ok(PostView::from_tuple_to_vec(res))
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}
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}
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impl ViewToVec for PostView {
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type DbTuple = PostViewTuple;
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fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
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items
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.iter()
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.map(|a| Self {
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post: a.0.to_owned(),
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creator: a.1.to_owned(),
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community: a.2.to_owned(),
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creator_banned_from_community: a.3.is_some(),
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counts: a.4.to_owned(),
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subscribed: a.5.is_some(),
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saved: a.6.is_some(),
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read: a.7.is_some(),
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my_vote: a.8,
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})
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.collect::<Vec<Self>>()
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}
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}
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#[cfg(test)]
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mod tests {
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use crate::post_view::{PostQueryBuilder, PostView};
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use lemmy_db_queries::{
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aggregates::post_aggregates::PostAggregates,
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establish_unpooled_connection,
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Crud,
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Likeable,
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ListingType,
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SortType,
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};
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use lemmy_db_schema::source::{community::*, person::*, post::*};
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use serial_test::serial;
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#[test]
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#[serial]
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fn test_crud() {
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let conn = establish_unpooled_connection();
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let person_name = "tegan".to_string();
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let community_name = "test_community_3".to_string();
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let post_name = "test post 3".to_string();
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let new_person = PersonForm {
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name: person_name.to_owned(),
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..PersonForm::default()
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};
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let inserted_person = Person::create(&conn, &new_person).unwrap();
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let new_community = CommunityForm {
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name: community_name.to_owned(),
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title: "nada".to_owned(),
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creator_id: inserted_person.id,
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..CommunityForm::default()
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};
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let inserted_community = Community::create(&conn, &new_community).unwrap();
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let new_post = PostForm {
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name: post_name.to_owned(),
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creator_id: inserted_person.id,
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community_id: inserted_community.id,
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..PostForm::default()
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};
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let inserted_post = Post::create(&conn, &new_post).unwrap();
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let post_like_form = PostLikeForm {
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post_id: inserted_post.id,
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person_id: inserted_person.id,
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score: 1,
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};
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let inserted_post_like = PostLike::like(&conn, &post_like_form).unwrap();
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let expected_post_like = PostLike {
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id: inserted_post_like.id,
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post_id: inserted_post.id,
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person_id: inserted_person.id,
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published: inserted_post_like.published,
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score: 1,
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};
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let read_post_listings_with_person = PostQueryBuilder::create(&conn)
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.listing_type(&ListingType::Community)
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.sort(&SortType::New)
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.community_id(inserted_community.id)
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.my_person_id(inserted_person.id)
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.list()
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.unwrap();
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let read_post_listings_no_person = PostQueryBuilder::create(&conn)
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.listing_type(&ListingType::Community)
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.sort(&SortType::New)
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.community_id(inserted_community.id)
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.list()
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.unwrap();
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let read_post_listing_no_person = PostView::read(&conn, inserted_post.id, None).unwrap();
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let read_post_listing_with_person =
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PostView::read(&conn, inserted_post.id, Some(inserted_person.id)).unwrap();
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let agg = PostAggregates::read(&conn, inserted_post.id).unwrap();
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// the non person version
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let expected_post_listing_no_person = PostView {
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post: Post {
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id: inserted_post.id,
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name: post_name,
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creator_id: inserted_person.id,
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url: None,
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body: None,
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published: inserted_post.published,
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updated: None,
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community_id: inserted_community.id,
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removed: false,
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deleted: false,
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locked: false,
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stickied: false,
|
|
nsfw: false,
|
|
embed_title: None,
|
|
embed_description: None,
|
|
embed_html: None,
|
|
thumbnail_url: None,
|
|
ap_id: inserted_post.ap_id.to_owned(),
|
|
local: true,
|
|
},
|
|
my_vote: None,
|
|
creator: PersonSafe {
|
|
id: inserted_person.id,
|
|
name: person_name,
|
|
preferred_username: None,
|
|
published: inserted_person.published,
|
|
avatar: None,
|
|
actor_id: inserted_person.actor_id.to_owned(),
|
|
local: true,
|
|
admin: false,
|
|
banned: false,
|
|
deleted: false,
|
|
bio: None,
|
|
banner: None,
|
|
updated: None,
|
|
inbox_url: inserted_person.inbox_url.to_owned(),
|
|
shared_inbox_url: None,
|
|
matrix_user_id: None,
|
|
},
|
|
creator_banned_from_community: false,
|
|
community: CommunitySafe {
|
|
id: inserted_community.id,
|
|
name: community_name,
|
|
icon: None,
|
|
removed: false,
|
|
deleted: false,
|
|
nsfw: false,
|
|
actor_id: inserted_community.actor_id.to_owned(),
|
|
local: true,
|
|
title: "nada".to_owned(),
|
|
description: None,
|
|
creator_id: inserted_person.id,
|
|
updated: None,
|
|
banner: None,
|
|
published: inserted_community.published,
|
|
},
|
|
counts: PostAggregates {
|
|
id: agg.id,
|
|
post_id: inserted_post.id,
|
|
comments: 0,
|
|
score: 1,
|
|
upvotes: 1,
|
|
downvotes: 0,
|
|
stickied: false,
|
|
published: agg.published,
|
|
newest_comment_time_necro: inserted_post.published,
|
|
newest_comment_time: inserted_post.published,
|
|
},
|
|
subscribed: false,
|
|
read: false,
|
|
saved: false,
|
|
};
|
|
|
|
// TODO More needs to be added here
|
|
let mut expected_post_listing_with_user = expected_post_listing_no_person.to_owned();
|
|
expected_post_listing_with_user.my_vote = Some(1);
|
|
|
|
let like_removed = PostLike::remove(&conn, inserted_person.id, inserted_post.id).unwrap();
|
|
let num_deleted = Post::delete(&conn, inserted_post.id).unwrap();
|
|
Community::delete(&conn, inserted_community.id).unwrap();
|
|
Person::delete(&conn, inserted_person.id).unwrap();
|
|
|
|
// The with user
|
|
assert_eq!(
|
|
expected_post_listing_with_user,
|
|
read_post_listings_with_person[0]
|
|
);
|
|
assert_eq!(
|
|
expected_post_listing_with_user,
|
|
read_post_listing_with_person
|
|
);
|
|
assert_eq!(1, read_post_listings_with_person.len());
|
|
|
|
// Without the user
|
|
assert_eq!(
|
|
expected_post_listing_no_person,
|
|
read_post_listings_no_person[0]
|
|
);
|
|
assert_eq!(expected_post_listing_no_person, read_post_listing_no_person);
|
|
assert_eq!(1, read_post_listings_no_person.len());
|
|
|
|
// assert_eq!(expected_post, inserted_post);
|
|
// assert_eq!(expected_post, updated_post);
|
|
assert_eq!(expected_post_like, inserted_post_like);
|
|
assert_eq!(1, like_removed);
|
|
assert_eq!(1, num_deleted);
|
|
}
|
|
}
|