From 20ecb64c134db1af6d19e9992849ff1c00ce45ed Mon Sep 17 00:00:00 2001
From: Jeremy Dormitzer <jdormitzer@hubspot.com>
Date: Fri, 2 Nov 2018 14:48:51 -0400
Subject: [PATCH] Don't attempt to migrate an empty table

---
 includes/schema.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/includes/schema.php b/includes/schema.php
index f92ddf3..26e7067 100644
--- a/includes/schema.php
+++ b/includes/schema.php
@@ -229,6 +229,9 @@ function migration_1_2_0() {
         "SELECT activitypub_id, object FROM {$wpdb->prefix}pterotype_objects",
         OBJECT_K
     );
+    if ( ! $objects || empty( $objects ) ) {
+        return;
+    }
     $ids_to_urls = array_map(
         function( $row ) {
             $json = \json_decode( $row->object, true );