postgres: rework search

src/storage/postgres/item.go

@@ -10,6 +10,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/nkanaev/yarr/src/content/htmlutil"
 	"github.com/nkanaev/yarr/src/storage/model"
 )
 
@@ -46,16 +47,19 @@ func (s *PostgresStorage) CreateItems(items []model.Item) bool {
 	})
 
 	for _, item := range items {
+		searchText := item.Title + " " + htmlutil.ExtractText(item.Content)
 		_, err = tx.Exec(`
 			insert into items (
 				guid, feed_id, title, link, date,
 				content, media_links,
-				date_arrived, last_arrived, status
+				date_arrived, last_arrived, status,
+				search
 			)
 			values (
 				$1, $2, $3, $4, $5,
 				$6, $7,
-				$8, $9, $10
+				$8, $9, $10,
+				to_tsvector('simple', $11)
 			)
 			on conflict (feed_id, guid) do update set
 				last_arrived = excluded.last_arrived`,
@@ -69,6 +73,7 @@ func (s *PostgresStorage) CreateItems(items []model.Item) bool {
 			now,
 			now,
 			model.UNREAD,
+			searchText,
 		)
 		if err != nil {
 			log.Print(err)

src/storage/postgres/migration.go

@@ -95,33 +95,14 @@ func m01_initial(tx *sql.Tx) error {
 			date_arrived timestamptz,
 			last_arrived timestamptz,
 			status       integer,
-			media_links  jsonb
+			media_links  jsonb,
+			search       tsvector
 		);
 		create index if not exists idx_item_feed_id on items(feed_id);
 		create index if not exists idx_item__date_id_status on items(date, id, status);
 		create unique index if not exists idx_item_guid on items(feed_id, guid);
-
-		alter table items add column if not exists search tsvector;
 		create index if not exists idx_item_search on items using gin(search);
 
-		create or replace function items_search_update() returns trigger as $$
-		begin
-			new.search := to_tsvector('english',
-				coalesce(new.title, '') || ' ' ||
-				coalesce(regexp_replace(new.content, '<[^>]+>', '', 'g'), '')
-			);
-			return new;
-		end;
-		$$ language plpgsql;
-
-		create trigger if not exists trg_items_search_insert
-			before insert on items
-			for each row execute function items_search_update();
-
-		create trigger if not exists trg_items_search_update
-			before update of title, content on items
-			for each row execute function items_search_update();
-
 		create table if not exists settings (
 			key text primary key,
 			val jsonb