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By: a guest on Jun 26th, 2012  |  syntax: None  |  size: 0.22 KB  |  hits: 10  |  expires: Never
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  1. Rails: List of categories where related items count is greater than 0
  2. @categories = Category.where(category.items.count > 0).all
  3.        
  4. Category.joins(:items).select('distinct categories.*')
  5.        
  6. Items.find(:all).categories.uniq
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