build quoted strings

lib/arel/factory_methods.rb

@@ -37,7 +37,7 @@ module Arel
     ###
     # Create a LOWER() function
     def lower column
-      Nodes::NamedFunction.new 'LOWER', [column]
+      Nodes::NamedFunction.new 'LOWER', [Nodes.build_quoted(column)]
     end
   end
 end

lib/arel/predications.rb

@@ -32,20 +32,20 @@ module Arel
         if other.begin == -Float::INFINITY && other.end == Float::INFINITY
           Nodes::NotIn.new self, []
         elsif other.end == Float::INFINITY
-          Nodes::GreaterThanOrEqual.new(self, other.begin)
+          Nodes::GreaterThanOrEqual.new(self, Nodes.build_quoted(other.begin, self))
         elsif other.begin == -Float::INFINITY && other.exclude_end?
-          Nodes::LessThan.new(self, other.end)
+          Nodes::LessThan.new(self, Nodes.build_quoted(other.end, self))
         elsif other.begin == -Float::INFINITY
-          Nodes::LessThanOrEqual.new(self, other.end)
+          Nodes::LessThanOrEqual.new(self, Nodes.build_quoted(other.end, self))
         elsif other.exclude_end?
-          left  = Nodes::GreaterThanOrEqual.new(self, other.begin)
-          right = Nodes::LessThan.new(self, other.end)
+          left  = Nodes::GreaterThanOrEqual.new(self, Nodes.build_quoted(other.begin, self))
+          right = Nodes::LessThan.new(self, Nodes.build_quoted(other.end, self))
           Nodes::And.new [left, right]
         else
-          Nodes::Between.new(self, Nodes::And.new([other.begin, other.end]))
+          Nodes::Between.new(self, Nodes::And.new([Nodes.build_quoted(other.begin, self), Nodes.build_quoted(other.end, self)]))
         end
       else
-        Nodes::In.new self, other
+        Nodes::In.new self, other.map { |x| Nodes.build_quoted(x, self) }
       end
     end
 

lib/arel/select_manager.rb

@@ -203,8 +203,8 @@ module Arel
 
     def take limit
       if limit
-        @ast.limit = Nodes::Limit.new(limit)
-        @ctx.top   = Nodes::Top.new(limit)
+        @ast.limit = Nodes::Limit.new(Nodes.build_quoted(limit))
+        @ctx.top   = Nodes::Top.new(Nodes.build_quoted(limit))
       else
         @ast.limit = nil
         @ctx.top   = nil