Fixed episode deletion

patches/delete-broken-episodes/delete-broken-episodes.go

@@ -0,0 +1,25 @@
+package main
+
+import (
+	"github.com/akyoto/color"
+	"github.com/animenotifier/notify.moe/arn"
+)
+
+func main() {
+	color.Yellow("Fixing non-existing anime relations")
+	defer arn.Node.Close()
+
+	count := 0
+
+	for episode := range arn.StreamEpisodes() {
+		anime := episode.Anime()
+
+		if anime == nil {
+			color.Yellow(episode.AnimeID)
+			episode.Delete()
+			count++
+		}
+	}
+
+	color.Green("Finished deleting %d episodes.", count)
+}