Short circuit if artist is known

diff --git a/scrape/graph/graph.go b/scrape/graph/graph.go
index 7a31924..fe150b7 100644 (file)
--- a/scrape/graph/graph.go
+++ b/scrape/graph/graph.go
@@ -43,6 +43,22 @@ WHERE ID NOT IN (
                        success := true
                postArtists:
                        for _, artist := range artists {
+                               row := env.Db.Db.QueryRow(`
+SELECT EXISTS (
+       SELECT 1
+       FROM ARTIST
+       WHERE ID = ?
+)
+`,
+                                       artist.ID)
+                               var exists bool
+                               if err := row.Scan(&exists); err != nil {
+                                       // We don't care, this was a short circuit check
+                               }
+                               if exists {
+                                       continue postArtists
+                               }
+
                                resp, err := http.PostForm("http://localhost:8080/artist/add", url.Values{"id": {string(artist.ID)}})
                                if err != nil {
                                        log.Print(err)