diff options
| -rw-r--r-- | activesupport/CHANGELOG.md | 6 | ||||
| -rw-r--r-- | activesupport/lib/active_support/cache.rb | 18 | ||||
| -rw-r--r-- | activesupport/test/cache/behaviors/cache_store_behavior.rb | 10 |
3 files changed, 24 insertions, 10 deletions
diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md index e678f48244..360cef2b41 100644 --- a/activesupport/CHANGELOG.md +++ b/activesupport/CHANGELOG.md @@ -1,3 +1,9 @@ +* Preserve key order passed to `ActiveSupport::CacheStore#fetch_multi`. + + `fetch_multi(*names)` now returns its results in the same order as the `*names` requested, rather than returning cache hits followed by cache misses. + + *Gannon McGibbon* + * If the same block is `included` multiple times for a Concern, an exception is no longer raised. *Mark J. Titorenko*, *Vlad Bokov* diff --git a/activesupport/lib/active_support/cache.rb b/activesupport/lib/active_support/cache.rb index e8518645d9..30a69c550b 100644 --- a/activesupport/lib/active_support/cache.rb +++ b/activesupport/lib/active_support/cache.rb @@ -438,18 +438,18 @@ module ActiveSupport options = merged_options(options) instrument :read_multi, names, options do |payload| - read_multi_entries(names, options).tap do |results| - payload[:hits] = results.keys - payload[:super_operation] = :fetch_multi + reads = read_multi_entries(names, options) + writes = {} + ordered = names.each_with_object({}) do |name, hash| + hash[name] = reads.fetch(name) { writes[name] = yield(name) } + end - writes = {} + payload[:hits] = reads.keys + payload[:super_operation] = :fetch_multi - (names - results.keys).each do |name| - results[name] = writes[name] = yield(name) - end + write_multi(writes, options) - write_multi writes, options - end + ordered end end diff --git a/activesupport/test/cache/behaviors/cache_store_behavior.rb b/activesupport/test/cache/behaviors/cache_store_behavior.rb index 9f54b1e7de..a696760bb2 100644 --- a/activesupport/test/cache/behaviors/cache_store_behavior.rb +++ b/activesupport/test/cache/behaviors/cache_store_behavior.rb @@ -130,7 +130,7 @@ module CacheStoreBehavior assert_equal("fufu", @cache.read("fu")) end - def test_multi_with_objects + def test_fetch_multi_with_objects cache_struct = Struct.new(:cache_key, :title) foo = cache_struct.new("foo", "FOO!") bar = cache_struct.new("bar") @@ -142,6 +142,14 @@ module CacheStoreBehavior assert_equal({ foo => "FOO!", bar => "BAM!" }, values) end + def test_fetch_multi_returns_ordered_names + @cache.write("bam", "BAM") + + values = @cache.fetch_multi("foo", "bar", "bam") { |key| key.upcase } + + assert_equal(%w(foo bar bam), values.keys) + end + def test_fetch_multi_without_block assert_raises(ArgumentError) do @cache.fetch_multi("foo") |