Fixing post.url migration.

crates/db_schema/src/schema.rs

@@ -636,7 +636,8 @@ diesel::table! {
         id -> Int4,
         #[max_length = 200]
         name -> Varchar,
-        url -> Nullable<Text>,
+        #[max_length = 512]
+        url -> Nullable<Varchar>,
         body -> Nullable<Text>,
         creator_id -> Int4,
         community_id -> Int4,

migrations/2023-06-06-104440_index_post_url/down.sql

@@ -1 +1,5 @@
+-- Change back the column type
+alter table post alter column url type text;
+
+-- Drop the index
 drop index idx_post_url;

migrations/2023-06-06-104440_index_post_url/up.sql

@@ -1 +1,9 @@
+-- Make a hard limit of 512 for the post.url column
+-- Truncate existing long rows.
+update post set url = left(url, 512) where length(url) > 512;
+
+-- Enforce the limit
+alter table post alter column url type varchar (512);
+
+-- Add the index
 create index idx_post_url on post(url);

src/scheduled_tasks.rs

@@ -72,8 +72,6 @@ pub fn setup(db_url: String, user_agent: String) -> Result<(), LemmyError> {
 
 /// Update the hot_rank columns for the aggregates tables
 fn update_hot_ranks(conn: &mut PgConnection, last_week_only: bool) {
-  info!("Updating hot ranks...");
-
   let mut post_update = diesel::update(post_aggregates::table).into_boxed();
   let mut comment_update = diesel::update(comment_aggregates::table).into_boxed();
   let mut community_update = diesel::update(community_aggregates::table).into_boxed();