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-rw-r--r--activesupport/lib/active_support/cache.rb13
1 files changed, 8 insertions, 5 deletions
diff --git a/activesupport/lib/active_support/cache.rb b/activesupport/lib/active_support/cache.rb
index fdef9cbfc0..837974bc85 100644
--- a/activesupport/lib/active_support/cache.rb
+++ b/activesupport/lib/active_support/cache.rb
@@ -353,8 +353,11 @@ module ActiveSupport
# Returns a hash with the data for each of the names. For example:
#
# cache.write("bim", "bam")
- # cache.fetch_multi("bim", "boom") { |key| key * 2 }
- # # => { "bam" => "bam", "boom" => "boomboom" }
+ # cache.fetch_multi("bim", "unknown_key") do |key|
+ # "Fallback value for key: #{key}"
+ # end
+ # # => { "bim" => "bam",
+ # # "unknown_key" => "Fallback value for key: unknown_key" }
#
def fetch_multi(*names)
options = names.extract_options!
@@ -563,9 +566,9 @@ module ActiveSupport
def handle_expired_entry(entry, key, options)
if entry && entry.expired?
race_ttl = options[:race_condition_ttl].to_i
- if race_ttl && (Time.now.to_f - entry.expires_at <= race_ttl)
- # When an entry has :race_condition_ttl defined, put the stale entry back into the cache
- # for a brief period while the entry is begin recalculated.
+ if (race_ttl > 0) && (Time.now.to_f - entry.expires_at <= race_ttl)
+ # When an entry has a positive :race_condition_ttl defined, put the stale entry back into the cache
+ # for a brief period while the entry is being recalculated.
entry.expires_at = Time.now + race_ttl
write_entry(key, entry, :expires_in => race_ttl * 2)
else