diff options
3 files changed, 18 insertions, 6 deletions
diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb index a8a52867ce..0fcae92d51 100644 --- a/activerecord/lib/active_record/relation/calculations.rb +++ b/activerecord/lib/active_record/relation/calculations.rb @@ -146,7 +146,7 @@ module ActiveRecord if options.except(:distinct).present? apply_finder_options(options.except(:distinct)).calculate(operation, column_name, :distinct => options[:distinct]) else - if eager_loading? || includes_values.present? + if eager_loading? || (includes_values.present? && references_eager_loaded_tables?) construct_relation_for_association_calculations.calculate(operation, column_name, options) else perform_calculation(operation, column_name, options) @@ -161,21 +161,20 @@ module ActiveRecord def perform_calculation(operation, column_name, options = {}) operation = operation.to_s.downcase - distinct = nil + distinct = options[:distinct] if operation == "count" column_name ||= (select_for_count || :all) unless arel.ast.grep(Arel::Nodes::OuterJoin).empty? distinct = true - column_name = primary_key if column_name == :all end + column_name = primary_key if column_name == :all && distinct + distinct = nil if column_name =~ /\s*DISTINCT\s+/i end - distinct = options[:distinct] || distinct - if @group_values.any? execute_grouped_calculation(operation, column_name, distinct) else diff --git a/activerecord/test/cases/associations/cascaded_eager_loading_test.rb b/activerecord/test/cases/associations/cascaded_eager_loading_test.rb index 39e8a7960a..49d8722aff 100644 --- a/activerecord/test/cases/associations/cascaded_eager_loading_test.rb +++ b/activerecord/test/cases/associations/cascaded_eager_loading_test.rb @@ -51,7 +51,9 @@ class CascadedEagerLoadingTest < ActiveRecord::TestCase categories = Category.joins(:categorizations).includes([{:posts=>:comments}, :authors]) assert_nothing_raised do - assert_equal 3, categories.count + assert_equal 4, categories.count + assert_equal 4, categories.all.count + assert_equal 3, categories.count(:distinct => true) assert_equal 3, categories.all.uniq.size # Must uniq since instantiating with inner joins will get dupes end end diff --git a/activerecord/test/cases/calculations_test.rb b/activerecord/test/cases/calculations_test.rb index 654c4c9010..56f6d795b6 100644 --- a/activerecord/test/cases/calculations_test.rb +++ b/activerecord/test/cases/calculations_test.rb @@ -319,6 +319,17 @@ class CalculationsTest < ActiveRecord::TestCase assert_equal 4, Account.count(:distinct => true, :include => :firm, :select => :credit_limit) end + def test_should_not_perform_joined_include_by_default + assert_equal Account.count, Account.includes(:firm).count + queries = assert_sql { Account.includes(:firm).count } + assert_no_match(/join/i, queries.last) + end + + def test_should_perform_joined_include_when_referencing_included_tables + joined_count = Account.includes(:firm).where(:companies => {:name => '37signals'}).count + assert_equal 1, joined_count + end + def test_should_count_scoped_select Account.update_all("credit_limit = NULL") assert_equal 0, Account.scoped(:select => "credit_limit").count |