From f495baa911ca10c6e55352d3e6a6b165f14d1b66 Mon Sep 17 00:00:00 2001
From: Ryan Cramer <ryan@processwire.com>
Date: Wed, 25 Sep 2019 06:48:26 -0400
Subject: [PATCH] Fix issue processwire/processwire-issues#942

---
 .../Fieldtype/FieldtypeRepeater/FieldtypeRepeater.module     | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/wire/modules/Fieldtype/FieldtypeRepeater/FieldtypeRepeater.module b/wire/modules/Fieldtype/FieldtypeRepeater/FieldtypeRepeater.module
index deb4f6cf..ee246f0e 100644
--- a/wire/modules/Fieldtype/FieldtypeRepeater/FieldtypeRepeater.module
+++ b/wire/modules/Fieldtype/FieldtypeRepeater/FieldtypeRepeater.module
@@ -1756,7 +1756,10 @@ class FieldtypeRepeater extends Fieldtype implements ConfigurableModule {
 		$data['repeaterFields'] = array();
 		$data['fieldContexts'] = array();
 		
-		foreach($field->get('repeaterFields') as $fid) {
+		$a = $field->get('repeaterFields');
+		if(!is_array($a)) $a = array();
+		
+		foreach($a as $fid) {
 			$f = $this->wire('fields')->get((int) $fid); 
 			if(!$f) continue;
 			$data['repeaterFields'][] = $f->name;