Method: EagerGroup::Preloader::ManyToMany#aggregate_hash

Defined in:
lib/eager_group/preloader/many_to_many.rb

#aggregate_hash ⇒ Object 



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# File 'lib/eager_group/preloader/many_to_many.rb', line 10

def aggregate_hash
  scope = klass.joins(reflection.name).tap{|query| query.merge!(definition_scope) if definition_scope}

  scope.where(group_by_foreign_key => record_ids).
    where(polymophic_as_condition).
    group(group_by_foreign_key).
    send(definition.aggregation_function, definition.column_name)
end