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POHow do I encapsulate included module methods in Ruby?
 

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  1. POHow do I encapsulate included module methods in Ruby?
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    <p>I want to be able to have methods in a module that are not accessible by the class that includes the module. Given the following example:</p> <pre><code>class Foo include Bar def do_stuff common_method_name end end module Bar def do_stuff common_method_name end private def common_method_name #blah blah end end </code></pre> <p>I want Foo.new.do_stuff to blow up because it is trying to access a method that the module is trying to hide from it. In the code above, though, Foo.new.do_stuff will work fine :(</p> <p>Is there a way to achieve what I want to do in Ruby?</p> <p>UPDATE - The real code</p> <pre><code>class Place &lt; ActiveRecord::Base include RecursiveTreeQueries belongs_to :parent, {:class_name =&gt; "Place"} has_many :children, {:class_name =&gt; 'Place', :foreign_key =&gt; "parent_id"} end module RecursiveTreeQueries def self_and_descendants model_table = self.class.arel_table temp_table = Arel::Table.new :temp r = Arel::SelectManager.new(self.class.arel_engine).from(model_table).project(model_table.columns).join(temp_table).on('true').where(model_table[:parent_id].eq(temp_table[:id])) nr = Place.scoped.where(:id =&gt; id) q = Arel::SelectManager.new(self.class.arel_engine) as = Arel::Nodes::As.new temp_table, nr.union(r) arel = Arel::SelectManager.new(self.class.arel_engine).with(:recursive,as).from(temp_table).project(temp_table[:id]) self.class.where(model_table[:id].in(arel)) end def self_and_ascendants model_table = self.class.arel_table temp_table = Arel::Table.new :temp r = Arel::SelectManager.new(self.class.arel_engine).from(model_table).project(model_table.columns).join(temp_table).on('true').where(temp_table[:parent_id].eq(model_table[:id])) nr = Place.scoped.where(:id =&gt; id) q = Arel::SelectManager.new(self.class.arel_engine) as = Arel::Nodes::As.new temp_table, nr.union(r) arel = Arel::SelectManager.new(self.class.arel_engine).with(:recursive,as).from(temp_table).project(temp_table[:id]) self.class.where(model_table[:id].in(arel)) end end </code></pre> <p>Clearly this code is hacked out and due some serious refactoring, and the purpose of my question is to find out if there is a way I can refactor this module with impunity from accidentally overwriting some method on ActiveRecord::Base or any other module included in Place.rb.</p>
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