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-rw-r--r--activerecord/CHANGELOG2
-rw-r--r--activerecord/lib/active_record/calculations.rb3
-rw-r--r--activerecord/test/calculations_test.rb20
3 files changed, 24 insertions, 1 deletions
diff --git a/activerecord/CHANGELOG b/activerecord/CHANGELOG
index 5eb64e75f1..3cde1dce39 100644
--- a/activerecord/CHANGELOG
+++ b/activerecord/CHANGELOG
@@ -1,5 +1,7 @@
*SVN*
+* Calculations support non-numeric foreign keys. #8154 [kamal]
+
* with_scope is protected. #8524 [Josh Peek]
* Quickref for association methods. #7723 [marclove, Mindsweeper]
diff --git a/activerecord/lib/active_record/calculations.rb b/activerecord/lib/active_record/calculations.rb
index 09c0c979e6..ef59db915a 100644
--- a/activerecord/lib/active_record/calculations.rb
+++ b/activerecord/lib/active_record/calculations.rb
@@ -235,7 +235,8 @@ module ActiveRecord
end
calculated_data.inject(ActiveSupport::OrderedHash.new) do |all, row|
- key = associated ? key_records[row[group_alias].to_i] : type_cast_calculated_value(row[group_alias], group_column)
+ key = type_cast_calculated_value(row[group_alias], group_column)
+ key = key_records[key] if associated
value = row[aggregate_alias]
all << [key, type_cast_calculated_value(value, column, operation)]
end
diff --git a/activerecord/test/calculations_test.rb b/activerecord/test/calculations_test.rb
index 22ef78ce40..bf34beb702 100644
--- a/activerecord/test/calculations_test.rb
+++ b/activerecord/test/calculations_test.rb
@@ -139,6 +139,26 @@ class CalculationsTest < Test::Unit::TestCase
assert_equal 2, c[companies(:rails_core)]
assert_equal 1, c[companies(:first_client)]
end
+
+ uses_mocha 'group_by_non_numeric_foreign_key_association' do
+ def test_should_group_by_association_with_non_numeric_foreign_key
+ ActiveRecord::Base.connection.expects(:select_all).returns([{"count_all" => 1, "firm_id" => "ABC"}])
+
+ firm = mock()
+ firm.expects(:id).returns("ABC")
+ firm.expects(:class).returns(Firm)
+ Company.expects(:find).with(["ABC"]).returns([firm])
+
+ column = mock()
+ column.expects(:name).at_least_once.returns(:firm_id)
+ column.expects(:type_cast).with("ABC").returns("ABC")
+ Account.expects(:columns).at_least_once.returns([column])
+
+ c = Account.count(:all, :group => :firm)
+ assert_equal Firm, c.first.first.class
+ assert_equal 1, c.first.last
+ end
+ end
def test_should_not_modify_options_when_using_includes
options = {:conditions => 'companies.id > 1', :include => :firm}