Revert "allow select to have multiple arguments"

This reverts commit 04cc446d178653d362510e79a22db5300d463161.

I reverted it because apparently we want to use: select([:a, :b])
instead of select(:a, :b), but there was no tests for that form.

2 files changed, 3 insertions, 11 deletions

diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb
index 792ffe1c5d..1654ae1eac 100644
--- a/activerecord/lib/active_record/relation/query_methods.rb
+++ b/activerecord/lib/active_record/relation/query_methods.rb
@@ -37,15 +37,12 @@ module ActiveRecord
       relation
     end
 
-    def select(*args, &blk)
-      if !block_given? && args.blank?
-        raise ArgumentError
-      end
+    def select(value = Proc.new)
       if block_given?
-        to_a.select {|*block_args| blk.call(*block_args) }
+        to_a.select {|*block_args| value.call(*block_args) }
       else
         relation = clone
-        relation.select_values += args
+        relation.select_values += Array.wrap(value)
         relation
       end
     end
diff --git a/activerecord/test/cases/base_test.rb b/activerecord/test/cases/base_test.rb
index 84b66fdf49..f2f5b73626 100644
--- a/activerecord/test/cases/base_test.rb
+++ b/activerecord/test/cases/base_test.rb
@@ -123,11 +123,6 @@ class BasicsTest < ActiveRecord::TestCase
     assert_equal Topic.all.map(&:id).sort, topic_ids
   end
 
-  def test_select_symbol_for_many_arguments
-    topics = Topic.select(:id, :author_name).map{|topic| [topic.id, topic.author_name]}.sort
-    assert_equal Topic.all.map{|topic| [topic.id,topic.author_name]}.sort, topics
-  end
-
   def test_table_exists
     assert !NonExistentTable.table_exists?
     assert Topic.table_exists?