Class: ActiveRecord::Associations::AssociationCollection

Inherits:
AssociationProxy
  • Object
show all
Defined in:
lib/reactive_record/first_last_limits.rb

Instance Method Summary collapse

Instance Method Details

#find(*args) ⇒ Object 



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# File 'lib/reactive_record/first_last_limits.rb', line 45

def find(*args)
  options = args.extract_options!

  # If using a custom finder_sql, scan the entire collection.
  if @reflection.options[:finder_sql]
    expects_array = args.first.kind_of?(Array)
    ids           = args.flatten.compact.uniq.map { |arg| arg.to_i }

    if ids.size == 1
      id = ids.first
      record = load_target.detect { |r| id == r.id }
      expects_array ? [ record ] : record
    else
      load_target.select { |r| ids.include?(r.id) }
    end
  else
    merge_options_from_reflection!(options)
    construct_find_options!(options)

    find_scope = construct_scope[:find].slice(:conditions, :order)

    with_scope(:find => find_scope) do
      relation = @reflection.klass.send(:construct_finder_arel, options, @reflection.klass.send(:current_scoped_methods))

      case args.first
      when :first, :last
        relation.send(*args)
      when :all
        records = relation.all
        @reflection.options[:uniq] ? uniq(records) : records
      else
        relation.find(*args)
      end
    end
  end
end

#first(*args) ⇒ Object 



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# File 'lib/reactive_record/first_last_limits.rb', line 82

def first(*args)
  if fetch_first_or_last_using_find?(args)
    find(:first, *args)
  else
    load_target unless loaded?
    @target.first(*args)
  end
end

#last(*args) ⇒ Object 



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# File 'lib/reactive_record/first_last_limits.rb', line 91

def last(*args)
  if fetch_first_or_last_using_find?(args)
    find(:last, *args)
  else
    load_target unless loaded?
    @target.last(*args)
  end
end