From 1079c4516c60c2cd71fd00bafcc0de1c28a899be Mon Sep 17 00:00:00 2001
From: Omar Roth <omarroth@hotmail.com>
Date: Fri, 22 Mar 2019 16:53:16 -0500
Subject: [PATCH] Automatically recreate views with outdated schema

---
 src/invidious/jobs.cr | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/invidious/jobs.cr b/src/invidious/jobs.cr
index 3c8470a5..9aaa7bd3 100644
--- a/src/invidious/jobs.cr
+++ b/src/invidious/jobs.cr
@@ -129,6 +129,14 @@ def refresh_feeds(db, logger, max_threads = 1)
           active_threads += 1
           spawn do
             begin
+              db.query("SELECT * FROM #{view_name} LIMIT 1") do |rs|
+                # View doesn't contain same number of rows as ChannelVideo
+                if ChannelVideo.from_rs(rs)[0]?.try &.to_a.size.try &.!= rs.column_count
+                  db.exec("DROP MATERIALIZED VIEW #{view_name}")
+                  raise "valid schema does not exist"
+                end
+              end
+
               db.exec("REFRESH MATERIALIZED VIEW #{view_name}")
             rescue ex
               # Create view if it doesn't exist