From 19a9c36b8bba489f1c9d0cd2a6c372d43fc2318e Mon Sep 17 00:00:00 2001
From: Gab <gambrys@gmail.com>
Date: Thu, 5 Sep 2019 13:43:05 +0100
Subject: [PATCH] Sanitise '-' when using pattern id as theme hook

---
 src/Definition/PatternDefinition.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/Definition/PatternDefinition.php b/src/Definition/PatternDefinition.php
index 07bf07c2..6d3a61a1 100644
--- a/src/Definition/PatternDefinition.php
+++ b/src/Definition/PatternDefinition.php
@@ -65,7 +65,10 @@ public function __construct(array $definition = []) {
     $this->id = $this->definition['id'];
     $this->setFields($this->definition['fields']);
     $this->setVariants($this->definition['variants']);
-    $this->setThemeHook(self::PATTERN_PREFIX . $this->id());
+    // As we know allow hyphens the pattern ID, we need to sanitise it when
+    // setting pattern theme hook.
+    $hookFriendlyId = str_replace('-', '_', $this->id());
+    $this->setThemeHook(self::PATTERN_PREFIX . $hookFriendlyId);
 
     if (!empty($definition['theme hook'])) {
       $this->setThemeHook($definition['theme hook']);