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-rw-r--r--activesupport/lib/active_support/cache/mem_cache_store.rb53
-rw-r--r--activesupport/test/caching_test.rb8
2 files changed, 31 insertions, 30 deletions
diff --git a/activesupport/lib/active_support/cache/mem_cache_store.rb b/activesupport/lib/active_support/cache/mem_cache_store.rb
index 4b0ad37586..174913365a 100644
--- a/activesupport/lib/active_support/cache/mem_cache_store.rb
+++ b/activesupport/lib/active_support/cache/mem_cache_store.rb
@@ -36,13 +36,13 @@ module ActiveSupport
end
def write_entry(key, entry, options) # :nodoc:
- retval = super
- if options[:raw] && local_cache && retval
+ if options[:raw] && local_cache
raw_entry = Entry.new(entry.value.to_s)
raw_entry.expires_at = entry.expires_at
- local_cache.write_entry(key, raw_entry, options)
+ super(key, raw_entry, options)
+ else
+ super
end
- retval
end
end
@@ -115,11 +115,10 @@ module ActiveSupport
def increment(name, amount = 1, options = nil) # :nodoc:
options = merged_options(options)
instrument(:increment, name, :amount => amount) do
- @data.incr(normalize_key(name, options), amount)
+ rescue_error_with nil do
+ @data.incr(normalize_key(name, options), amount)
+ end
end
- rescue Dalli::DalliError => e
- logger.error("DalliError (#{e}): #{e.message}") if logger
- nil
end
# Decrement a cached value. This method uses the memcached decr atomic
@@ -129,20 +128,16 @@ module ActiveSupport
def decrement(name, amount = 1, options = nil) # :nodoc:
options = merged_options(options)
instrument(:decrement, name, :amount => amount) do
- @data.decr(normalize_key(name, options), amount)
+ rescue_error_with nil do
+ @data.decr(normalize_key(name, options), amount)
+ end
end
- rescue Dalli::DalliError => e
- logger.error("DalliError (#{e}): #{e.message}") if logger
- nil
end
# Clear the entire cache on all memcached servers. This method should
# be used with care when shared cache is being used.
def clear(options = nil)
- @data.flush_all
- rescue Dalli::DalliError => e
- logger.error("DalliError (#{e}): #{e.message}") if logger
- nil
+ rescue_error_with(nil) { @data.flush_all }
end
# Get the statistics from the memcached servers.
@@ -153,10 +148,7 @@ module ActiveSupport
protected
# Read an entry from the cache.
def read_entry(key, options) # :nodoc:
- deserialize_entry(@data.get(key, options))
- rescue Dalli::DalliError => e
- logger.error("DalliError (#{e}): #{e.message}") if logger
- nil
+ rescue_error_with(nil) { deserialize_entry(@data.get(key, options)) }
end
# Write an entry to the cache.
@@ -168,18 +160,14 @@ module ActiveSupport
# Set the memcache expire a few minutes in the future to support race condition ttls on read
expires_in += 5.minutes
end
- @data.send(method, key, value, expires_in, options)
- rescue Dalli::DalliError => e
- logger.error("DalliError (#{e}): #{e.message}") if logger
- false
+ rescue_error_with false do
+ @data.send(method, key, value, expires_in, options)
+ end
end
# Delete an entry from the cache.
def delete_entry(key, options) # :nodoc:
- @data.delete(key)
- rescue Dalli::DalliError => e
- logger.error("DalliError (#{e}): #{e.message}") if logger
- false
+ rescue_error_with(false) { @data.delete(key) }
end
private
@@ -207,10 +195,15 @@ module ActiveSupport
if raw_value
entry = Marshal.load(raw_value) rescue raw_value
entry.is_a?(Entry) ? entry : Entry.new(entry)
- else
- nil
end
end
+
+ def rescue_error_with(fallback)
+ yield
+ rescue Dalli::DalliError => e
+ logger.error("DalliError (#{e}): #{e.message}") if logger
+ fallback
+ end
end
end
end
diff --git a/activesupport/test/caching_test.rb b/activesupport/test/caching_test.rb
index 7bef73136c..a1bd2d5356 100644
--- a/activesupport/test/caching_test.rb
+++ b/activesupport/test/caching_test.rb
@@ -655,6 +655,14 @@ module LocalCacheBehavior
end
end
+ def test_local_cache_of_read_nil
+ @cache.with_local_cache do
+ assert_equal nil, @cache.read('foo')
+ @cache.send(:bypass_local_cache) { @cache.write 'foo', 'bar' }
+ assert_equal nil, @cache.read('foo')
+ end
+ end
+
def test_local_cache_of_delete
@cache.with_local_cache do
@cache.write('foo', 'bar')