comment_new.go: create page before inserting comment

Fixes https://gitlab.com/commento/commento/issues/173

api/comment_count_test.go

@@ -20,8 +20,8 @@ func TestCommentCountBasics(t *testing.T) {
 		return
 	}
 
-	if counts["/path.html"] != 2 {
-		t.Errorf("expected count=2 got count=%d", counts["/path.html"])
+	if counts["/path.html"] != 3 {
+		t.Errorf("expected count=3 got count=%d", counts["/path.html"])
 		return
 	}
 }

api/comment_new.go

@@ -30,6 +30,10 @@ func commentNew(commenterHex string, domain string, path string, parentHex strin
 
 	html := markdownToHtml(markdown)
 
+	if err = pageNew(domain, path); err != nil {
+		return "", err
+	}
+
 	statement := `
 		INSERT INTO
 		comments (commentHex, domain, path, commenterHex, parentHex, markdown, html, creationDate, state)
@@ -41,10 +45,6 @@ func commentNew(commenterHex string, domain string, path string, parentHex strin
 		return "", errorInternal
 	}
 
-	if err = pageNew(domain, path); err != nil {
-		return "", err
-	}
-
 	return commentHex, nil
 }
 

db/20190508222848-reset-count.sql

@@ -0,0 +1,2 @@
+UPDATE pages
+SET commentCount = commentCount + 1;