feat: initial view queries

views/media/music/genres.psql

@@ -0,0 +1,55 @@
+CREATE OR REPLACE VIEW optimized_genres AS
+SELECT
+    g.id,
+    g.name,
+    g.description,
+    g.total_plays,
+    g.wiki_link,
+    g.slug AS url,
+
+    (
+        SELECT json_agg(json_build_object(
+            'name', a.name_string,
+            'url', a.slug,
+            'total_plays', a.total_plays
+        ))
+        FROM artists a
+        WHERE a.genres = g.id
+    ) AS artists,
+
+    (
+        SELECT json_agg(json_build_object(
+            'title', b.title,
+            'author', b.author,
+            'url', b.slug
+        ))
+        FROM books b
+        JOIN genres_books gb ON gb.books_id = b.id
+        WHERE gb.genres_id = g.id
+    ) AS books,
+
+    (
+        SELECT json_agg(json_build_object(
+            'title', m.title,
+            'year', m.year,
+            'url', m.slug
+        ) ORDER BY m.year DESC)
+        FROM movies m
+        JOIN genres_movies gm ON gm.movies_id = m.id
+        WHERE gm.genres_id = g.id
+    ) AS movies,
+
+    (
+        SELECT json_agg(json_build_object(
+            'title', p.title,
+            'date', p.date,
+            'url', p.slug
+        ) ORDER BY p.date DESC)
+        FROM posts_genres pg
+        LEFT JOIN posts p ON pg.posts_id = p.id
+        WHERE pg.genres_id = g.id
+    ) AS posts
+FROM
+    genres g
+ORDER BY
+    g.id ASC;