Module: RailsDynamicAssociations::ActiveRecord::Relations::ClassAndInstanceMethods

Defined in:
lib/rails_dynamic_associations/active_record/relations.rb

Instance Method Summary collapse

Instance Method Details

#find_relations(args = {}) ⇒ Object

TODO: use keyword arguments



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# File 'lib/rails_dynamic_associations/active_record/relations.rb', line 22

def find_relations args = {}
  directions = RailsDynamicAssociations.directions

  for association, method in directions do
    args[association] = args.delete method
  end

  as = [ args[:as] ].flatten

  if directions.keys.inject(nil) { |r, k| !r ^ !args[k] } then # direction specified
    for association, method in directions do
      next unless args[association]

      return (as.present? ?
        source_relations.named(as) :
        source_relations
      ).send method, args[association]
    end
  else # both directions
    directions.map do |association, method|
      as.present? ?
        send("#{association}_relations").named(as) :
        send("#{association}_relations")
    end.sum
  end
end

#relative?(args = {}) ⇒ Boolean 



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# File 'lib/rails_dynamic_associations/active_record/relations.rb', line 49

def relative? args = {}
  find_relations(args).
    present?
end

#relatives(args = {}) ⇒ Object 



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# File 'lib/rails_dynamic_associations/active_record/relations.rb', line 54

def relatives args = {}
  find_relations(args).
    map { |r|
      ([ r.source, r.target ] - [ self ]).first
    }.uniq
end