Created
November 22, 2013 20:56
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| # Type is a :symbol of the model which you want to filter by | |
| def self.filtered_by type | |
| belongs_to type, :foreign_key => :located_id, :foreign_type => type.to_s.capitalize | |
| where(:located_type => type.to_s.capitalize).joins(type).includes(:located) | |
| end |
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