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-rw-r--r--activesupport/lib/active_support/cache.rb3
1 files changed, 1 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/cache.rb b/activesupport/lib/active_support/cache.rb
index 9711ed6f73..26e737e917 100644
--- a/activesupport/lib/active_support/cache.rb
+++ b/activesupport/lib/active_support/cache.rb
@@ -77,8 +77,7 @@ module ActiveSupport
def expand_cache_key(key, namespace = nil)
expanded_cache_key = namespace ? "#{namespace}/" : ""
- prefix = ENV["RAILS_CACHE_ID"] || ENV["RAILS_APP_VERSION"]
- if prefix
+ if prefix = ENV["RAILS_CACHE_ID"] || ENV["RAILS_APP_VERSION"]
expanded_cache_key << "#{prefix}/"
end