ruby 在Helper中重构一个应用程序示例

Posted 2021-05-16

# Module

module ApplicationHelper
  def load_collection(model, argument='name')
    model.classify.constantize.all.map { |s| [s.send(argument), s.id] }
  end

  def present(object, klass = nil)
    klass ||= "#{object.class}Presenter".constantize
    presenter = klass.new(object, self)
    yield presenter if block_given?
    presenter
  end
end

# Application examples:
# <%= f.input :company_id, label: 'Company', collection: load_collection('Company') %>
# <%= f.input :conservation_practices, label: 'Conservation Practice:', collection: load_collection('MmpStatic::FieldConservationPractice'), :include_blank => false %>
# <%= f.input :user_id, label: 'User', collection: load_collection('User', 'username') %>
#
#