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Rake Task In Ruby On Rails

namespace :update_user_staus do
  desc "updating user status"
  task :update => :environment do (or)###for create 'task :create => :environment'
    User.all.each do |b|
    b.status = "active"
    b.save
  end
 end
end

######running command

rake  update_user_staus:update

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