Method: ThroughHierarchy::Hierarchicals::Hierarchical#model_key

Defined in:
lib/through_hierarchy/hierarchicals/hierarchical.rb

#model_key(model) ⇒ Object 



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# File 'lib/through_hierarchy/hierarchicals/hierarchical.rb', line 89

def model_key(model)
  model.arel_table[model.primary_key]
end