Support reversal of ARel orderings in reverse_sql_order
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@ -305,9 +305,18 @@ def apply_modules(modules)
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def reverse_sql_order(order_query)
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order_query = ["#{quoted_table_name}.#{quoted_primary_key} ASC"] if order_query.empty?
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order_query.join(', ').split(',').collect do |s|
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s.gsub!(/\sasc\Z/i, ' DESC') || s.gsub!(/\sdesc\Z/i, ' ASC') || s.concat(' DESC')
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end
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order_query.map do |o|
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case o
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when Arel::Nodes::Ordering
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o.reverse
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when String, Symbol
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o.to_s.split(',').collect do |s|
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s.gsub!(/\sasc\Z/i, ' DESC') || s.gsub!(/\sdesc\Z/i, ' ASC') || s.concat(' DESC')
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end
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else
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o
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end
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end.flatten
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end
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def array_of_strings?(o)
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@ -145,6 +145,18 @@ def test_finding_with_order
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assert_equal topics(:first).title, topics.first.title
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end
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def test_finding_with_arel_order
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topics = Topic.order(Topic.arel_table[:id].asc)
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assert_equal 4, topics.to_a.size
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assert_equal topics(:first).title, topics.first.title
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end
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def test_finding_last_with_arel_order
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topics = Topic.order(Topic.arel_table[:id].asc)
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assert_equal topics(:fourth).title, topics.last.title
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end
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def test_finding_with_order_concatenated
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topics = Topic.order('author_name').order('title')
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assert_equal 4, topics.to_a.size
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