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class Project < ActiveRecord::Base
has_and_belongs_to_many :developers, :uniq => true
has_and_belongs_to_many :developers_named_david, :class_name => "Developer", :conditions => "name = 'David'", :uniq => true
has_and_belongs_to_many :developers_by_sql, :class_name => "Developer", :delete_sql => "DELETE FROM developers_projects WHERE project_id = \#{id} AND developer_id = \#{record.id}"
end
class SpecialProject < Project
def hello_world
"hello there!"
end
end
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