From 54d660ad883e96d6d64f0e1104a2a1db63dcbd82 Mon Sep 17 00:00:00 2001 From: Dessalines Date: Sat, 30 Mar 2019 17:08:07 -0700 Subject: [PATCH] Adding hot ranking in sql, post listing view --- .../2019-03-03-163336_create_post/down.sql | 2 ++ .../2019-03-03-163336_create_post/up.sql | 4 +++- .../2019-03-30-212058_post_listing/down.sql | 2 ++ .../2019-03-30-212058_post_listing/up.sql | 20 +++++++++++++++++++ server/src/actions/comment.rs | 2 +- ui/src/components/post.tsx | 1 - 6 files changed, 28 insertions(+), 3 deletions(-) create mode 100644 server/migrations/2019-03-30-212058_post_listing/down.sql create mode 100644 server/migrations/2019-03-30-212058_post_listing/up.sql diff --git a/server/migrations/2019-03-03-163336_create_post/down.sql b/server/migrations/2019-03-03-163336_create_post/down.sql index acc0b5d1..d3ffa6b9 100644 --- a/server/migrations/2019-03-03-163336_create_post/down.sql +++ b/server/migrations/2019-03-03-163336_create_post/down.sql @@ -1,2 +1,4 @@ +drop function hot_rank; +drop view post_listing; drop table post_like; drop table post; diff --git a/server/migrations/2019-03-03-163336_create_post/up.sql b/server/migrations/2019-03-03-163336_create_post/up.sql index 14294c8f..2cb8bb01 100644 --- a/server/migrations/2019-03-03-163336_create_post/up.sql +++ b/server/migrations/2019-03-03-163336_create_post/up.sql @@ -14,5 +14,7 @@ create table post_like ( post_id int references post on update cascade on delete cascade not null, fedi_user_id text not null, score smallint not null, -- -1, or 1 for dislike, like, no row for no opinion - published timestamp not null default now() + published timestamp not null default now(), + unique(post_id, fedi_user_id) ); + diff --git a/server/migrations/2019-03-30-212058_post_listing/down.sql b/server/migrations/2019-03-30-212058_post_listing/down.sql new file mode 100644 index 00000000..379ce34e --- /dev/null +++ b/server/migrations/2019-03-30-212058_post_listing/down.sql @@ -0,0 +1,2 @@ +drop view post_listing; +drop function hot_rank; diff --git a/server/migrations/2019-03-30-212058_post_listing/up.sql b/server/migrations/2019-03-30-212058_post_listing/up.sql new file mode 100644 index 00000000..1796c8f6 --- /dev/null +++ b/server/migrations/2019-03-30-212058_post_listing/up.sql @@ -0,0 +1,20 @@ +-- Rank = ScaleFactor * sign(Score) * log(1 + abs(Score)) / (Time + 2)^Gravity +create or replace function hot_rank( + score numeric, + published timestamp without time zone) +returns numeric as $$ +begin + -- hours_diff:=EXTRACT(EPOCH FROM (timezone('utc',now()) - published))/3600 + return 10000*sign(score)*log(1 + abs(score)) / power(((EXTRACT(EPOCH FROM (timezone('utc',now()) - published))/3600) + 2), 1.8); +end; $$ +LANGUAGE plpgsql; + +create view post_listing as +select post.*, +(select count(*) from comment where comment.post_id = post.id) as number_of_comments, +coalesce(sum(post_like.score),0) as score, +hot_rank(coalesce(sum(post_like.score),0), post.published) as hot_rank +from post +left join post_like +on post.id = post_like.post_id +group by post.id; diff --git a/server/src/actions/comment.rs b/server/src/actions/comment.rs index 089c384c..14f6e931 100644 --- a/server/src/actions/comment.rs +++ b/server/src/actions/comment.rs @@ -152,7 +152,7 @@ impl CommentView { for like in likes.iter() { if like.score == 1 { - upvotes += 1 + upvotes += 1; } else if like.score == -1 { downvotes += 1; } diff --git a/ui/src/components/post.tsx b/ui/src/components/post.tsx index 1d9412fc..adb90840 100644 --- a/ui/src/components/post.tsx +++ b/ui/src/components/post.tsx @@ -424,7 +424,6 @@ export class CommentForm extends Component { } } - render() { return (
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