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Jan 5th, 2018
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  1. red_items = Item.where(:colour => 'red')
  2. red_items.find(1)
  3. item = red_items.new
  4. item.colour #=> 'red'
  5.  
  6. red_items.exists?
  7. red_items.update_all :colour => 'black'
  8. red_items.exists?
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