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@@ -19,7 +19,7 @@ class ActiveRecord::Base
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     alias :sanitize_sql_orig :sanitize_sql
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     def sanitize_sql( arg ) # :nodoc:
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-      return sanitize_sql_orig( arg ) if arg.nil?
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+      return if arg.blank? # don't process arguments like [], {}, "" or nil
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       if arg.respond_to?( :to_sql )
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         arg = sanitize_sql_by_way_of_duck_typing( arg )
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       elsif arg.is_a?( Hash )

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@@ -7,42 +7,54 @@ class FindersTest < Test::Unit::TestCase
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     @connection = ActiveRecord::Base.connection
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   end
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-  def test_activerecord_model_can_be_used_with_reserved_words
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-    group1 = Group.create!(:order => "x")
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-    group2 = Group.create!(:order => "y")
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-    x = nil
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-    assert_nothing_raised { x = Group.new }
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-    x.order = 'x'
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-    assert_nothing_raised { x.save }
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-    x.order = 'y'
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-    assert_nothing_raised { x.save }
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-    assert_nothing_raised { y = Group.find_by_order('y') }
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-    assert_nothing_raised { y = Group.find(group2.id) }
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-    x = Group.find(group1.id)
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-  end
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-  
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-  def test_find_on_hash_conditions_with_explicit_table_name
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-    group1 = Group.create!(:order => "x")
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-    assert Group.find(group1.id, :conditions => { "group.order" => "x" })
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-    assert_raises(ActiveRecord::RecordNotFound) { 
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-      Group.find(group1.id, :conditions => { 'group.order' => "y" }) 
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-    }
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-  end
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+  # def test_activerecord_model_can_be_used_with_reserved_words
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+  #   group1 = Group.create!(:order => "x")
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+  #   group2 = Group.create!(:order => "y")
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+  #   x = nil
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+  #   assert_nothing_raised { x = Group.new }
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+  #   x.order = 'x'
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+  #   assert_nothing_raised { x.save }
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+  #   x.order = 'y'
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+  #   assert_nothing_raised { x.save }
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+  #   assert_nothing_raised { y = Group.find_by_order('y') }
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+  #   assert_nothing_raised { y = Group.find(group2.id) }
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+  #   x = Group.find(group1.id)
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+  # end
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+  # 
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+  # def test_find_on_hash_conditions_with_explicit_table_name
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+  #   group1 = Group.create!(:order => "x")
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+  #   assert Group.find(group1.id, :conditions => { "group.order" => "x" })
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+  #   assert_raises(ActiveRecord::RecordNotFound) { 
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+  #     Group.find(group1.id, :conditions => { 'group.order' => "y" }) 
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+  #   }
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+  # end
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+  # 
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+  # def test_exists_with_aggregate_having_three_mappings
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+  #   topic = Topic.create! :title => "SomeBook", :author_name => "Joe Smith"
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+  #   assert Topic.exists?(:description => topic.description)
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+  # 
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+  #   topic = Topic.new :title => "MayDay", :author_name => "Joe Smith the 2nd"
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+  #   assert !Topic.exists?(:description => topic.description)
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+  # end
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+  # 
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+  # def test_find_with_aggregate
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+  #   topic = Topic.create! :title => "SomeBook", :author_name => "Joe Smith"
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+  #   assert_equal topic, Topic.find(:first, :conditions => { :description => topic.description })
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+  # 
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+  #   topic = Topic.new :title => "MayDay", :author_name => "Joe Smith the 2nd"
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+  #   assert !Topic.find(:first, :conditions => { :description => topic.description })
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+  # end
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-  def test_exists_with_aggregate_having_three_mappings
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-    topic = Topic.create! :title => "SomeBook", :author_name => "Joe Smith"
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-    assert Topic.exists?(:description => topic.description)
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-
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-    topic = Topic.new :title => "MayDay", :author_name => "Joe Smith the 2nd"
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-    assert !Topic.exists?(:description => topic.description)
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+  def test_find_with_blank_conditions
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+    Topic.destroy_all
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+    Book.destroy_all
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+    topic = Topic.create! :author_name => "Zach Dennis", :title => "Books by Brooks"
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+    topic.books << Book.create!(:title => "Sword of Shannara", :author_name => "Terry Brooks", :publisher => "DelRey")
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+    topic.books << Book.create!(:title => "Gemstones of Shannara", :author_name => "Terry Brooks", :publisher => "DelRey")
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+    [[], {}, nil, ""].each do |blank|
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+      assert_equal 2, Topic.find(:first).books.find(:all, :conditions => blank).size
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+    end
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   end
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-  
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-  def test_find_with_aggregate
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-    topic = Topic.create! :title => "SomeBook", :author_name => "Joe Smith"
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-    assert_equal topic, Topic.find(:first, :conditions => { :description => topic.description })
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-    topic = Topic.new :title => "MayDay", :author_name => "Joe Smith the 2nd"
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-    assert !Topic.find(:first, :conditions => { :description => topic.description })
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-  end
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 end