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Fix expanding cache key for single element arrays 

In short:
expand_cache_key(element) should not equal expand_cache_key([element])

This way a fragment cache key for an index page with only a single
element in the collection is different than a fragment cache for a
typical show page for that element.
This commit is contained in:
Olek Janiszewski 2011-12-16 17:58:22 +01:00
parent 4e74bd194b
commit abe915f237
2 changed files with 16 additions and 8 deletions
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2
activesupport/lib/active_support/cache.rb
View File

@ -90,7 +90,7 @@ module ActiveSupport
def retrieve_cache_key(key)
case
when key.respond_to?(:cache_key) then key.cache_key
when key.is_a?(Array) then key.map { |element| retrieve_cache_key(element) }.to_param
when key.is_a?(Array) then ['Array', *key.map { |element| retrieve_cache_key(element) }].to_param
else key.to_param
end.to_s
end

22
activesupport/test/caching_test.rb
View File

@ -4,19 +4,19 @@ require 'active_support/cache'
class CacheKeyTest < ActiveSupport::TestCase
def test_expand_cache_key
assert_equal '1/2/true', ActiveSupport::Cache.expand_cache_key([1, '2', true])
assert_equal 'name/1/2/true', ActiveSupport::Cache.expand_cache_key([1, '2', true], :name)
assert_equal 'Array/1/2/true', ActiveSupport::Cache.expand_cache_key([1, '2', true])
assert_equal 'name/Array/1/2/true', ActiveSupport::Cache.expand_cache_key([1, '2', true], :name)
end
def test_expand_cache_key_with_rails_cache_id
begin
ENV['RAILS_CACHE_ID'] = 'c99'
assert_equal 'c99/foo', ActiveSupport::Cache.expand_cache_key(:foo)
assert_equal 'c99/foo', ActiveSupport::Cache.expand_cache_key([:foo])
assert_equal 'c99/foo/bar', ActiveSupport::Cache.expand_cache_key([:foo, :bar])
assert_equal 'c99/Array/foo', ActiveSupport::Cache.expand_cache_key([:foo])
assert_equal 'c99/Array/foo/bar', ActiveSupport::Cache.expand_cache_key([:foo, :bar])
assert_equal 'nm/c99/foo', ActiveSupport::Cache.expand_cache_key(:foo, :nm)
assert_equal 'nm/c99/foo', ActiveSupport::Cache.expand_cache_key([:foo], :nm)
assert_equal 'nm/c99/foo/bar', ActiveSupport::Cache.expand_cache_key([:foo, :bar], :nm)
assert_equal 'nm/c99/Array/foo', ActiveSupport::Cache.expand_cache_key([:foo], :nm)
assert_equal 'nm/c99/Array/foo/bar', ActiveSupport::Cache.expand_cache_key([:foo, :bar], :nm)
ensure
ENV['RAILS_CACHE_ID'] = nil
end
@ -55,7 +55,7 @@ class CacheKeyTest < ActiveSupport::TestCase
def key.cache_key
:foo_key
end
assert_equal 'foo_key', ActiveSupport::Cache.expand_cache_key([key])
assert_equal 'Array/foo_key', ActiveSupport::Cache.expand_cache_key([key])
end
def test_expand_cache_key_of_nil
@ -69,6 +69,14 @@ class CacheKeyTest < ActiveSupport::TestCase
def test_expand_cache_key_of_true
assert_equal 'true', ActiveSupport::Cache.expand_cache_key(true)
end
def test_expand_cache_key_of_one_element_array_different_than_key_of_element
element = 'foo'
array = [element]
element_cache_key = ActiveSupport::Cache.expand_cache_key(element)
array_cache_key = ActiveSupport::Cache.expand_cache_key(array)
assert_not_equal element_cache_key, array_cache_key
end
end
class CacheStoreSettingTest < ActiveSupport::TestCase