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Fix #6951. Use query cache/uncache, when using not only database.yml …

…but also DATABASE_URL.
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1 parent 7e17b0b commit a7c3c9025009cef98cd91ff27707f678cb8fb3c3 @kennyj committed Oct 30, 2012
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5 activerecord/CHANGELOG.md
@@ -1,5 +1,10 @@
## Rails 4.0.0 (unreleased) ##
+* Use query cache/uncache when using DATABASE_URL.
+ Fix #6951.
+
+ *kennyj*
+
* Added `#none!` method for mutating `ActiveRecord::Relation` objects to a NullRelation.
It acts like `#none` but modifies relation in place.
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12 activerecord/lib/active_record/query_cache.rb
@@ -5,19 +5,19 @@ class QueryCache
module ClassMethods
# Enable the query cache within the block if Active Record is configured.
def cache(&block)
- if ActiveRecord::Base.configurations.blank?
- yield
- else
+ if ActiveRecord::Base.connected?
connection.cache(&block)
+ else
+ yield
end
end
# Disable the query cache within the block if Active Record is configured.
def uncached(&block)
- if ActiveRecord::Base.configurations.blank?
- yield
- else
+ if ActiveRecord::Base.connected?
connection.uncached(&block)
+ else
+ yield
end
end
end
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11 activerecord/test/cases/query_cache_test.rb
@@ -184,6 +184,17 @@ def test_cache_is_ignored_for_locked_relations
assert_queries(2) { task.lock!; task.lock! }
end
end
+
+ def test_cache_is_available_when_connection_is_connected
+ conf = ActiveRecord::Base.configurations
+
+ ActiveRecord::Base.configurations = {}
+ Task.cache do
+ assert_queries(1) { Task.find(1); Task.find(1) }
+ end
+ ensure
+ ActiveRecord::Base.configurations = conf
+ end
end
class QueryCacheExpiryTest < ActiveRecord::TestCase

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