From efc10086cbb6726c3728c8edda93b8fd00436717 Mon Sep 17 00:00:00 2001
From: Vika <vika@fireburn.ru>
Date: Mon, 4 Mar 2024 04:40:50 +0300
Subject: Support ?q=category queries

Warning, untested. But hopefully works!
---
 src/database/postgres/mod.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'src/database/postgres')

diff --git a/src/database/postgres/mod.rs b/src/database/postgres/mod.rs
index ee7dd1c..71c4d58 100644
--- a/src/database/postgres/mod.rs
+++ b/src/database/postgres/mod.rs
@@ -74,6 +74,21 @@ impl PostgresStorage {
 
 #[async_trait::async_trait]
 impl Storage for PostgresStorage {
+    #[tracing::instrument(skip(self))]
+    async fn categories(&self, url: &str) -> Result<Vec<String>> {
+        sqlx::query_scalar::<_, String>("
+SELECT jsonb_array_elements(mf2['properties']['category']) AS category
+FROM kittybox.mf2_json
+WHERE
+    jsonb_typeof(mf2['properties']['category']) = 'array'
+    AND uid LIKE ($1 + '%')
+    GROUP BY category ORDER BY count(*) DESC
+")
+            .bind(url)
+            .fetch_all(&self.db)
+            .await
+            .map_err(|err| err.into())
+    }
     #[tracing::instrument(skip(self))]
     async fn post_exists(&self, url: &str) -> Result<bool> {
         sqlx::query_as::<_, (bool,)>("SELECT exists(SELECT 1 FROM kittybox.mf2_json WHERE uid = $1 OR mf2['properties']['url'] ? $1)")
-- 
cgit 1.4.1