From 9a068f3a7b2721387f096e0af4312d268e8673c0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B8rge=20N=C3=A6ss?= <bjoerge@gmail.com>
Date: Tue, 6 Mar 2018 20:15:46 +0100
Subject: [PATCH] [schema] Set default preview for slugs (#648)

---
 packages/@sanity/schema/src/legacy/types/slug.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/@sanity/schema/src/legacy/types/slug.js b/packages/@sanity/schema/src/legacy/types/slug.js
index 58d1c3efdbb..f49d4275c6c 100644
--- a/packages/@sanity/schema/src/legacy/types/slug.js
+++ b/packages/@sanity/schema/src/legacy/types/slug.js
@@ -73,7 +73,10 @@ export const SlugType = {
   },
   extend(subTypeDef) {
     const parsed = Object.assign(pick(SLUG_CORE, OVERRIDABLE_FIELDS), subTypeDef, {
-      type: SLUG_CORE
+      type: SLUG_CORE,
+      preview: {
+        select: {title: 'current'}
+      }
     })
     return subtype(parsed)