Question

我在“视图”输入中有集合（simple_form），但该集合应该在模型中。

我必须在模型中声明一个包含[“兄弟”，“女儿”，“父亲”，“朋友”，“丈夫”，“母亲”，“姐妹”，“儿子”，“妻子”的变量]并在此处使用：

= f.input :relationship

这是我的观点：

= simple_form_for @emergency_information, html: {class: 'form-horizontal' } do |f|
  = f.error_notification
  = f.input :name
  = f.input :relationship, collection: ["Brother", "Daughter", "Father", "Friend", "Husband", "Mother", "Sister", "Son", "Wife"]

那是我的模特

class EmergencyInformation < ActiveRecord::Base
  belongs_to :user

  validates :user_id, :name, presence: true

end

请帮帮我！

Answer 1

如果我理解正确你的努力是找出附加这个数组的位置。通常在这些情况下，我将其作为常量添加到我的模型中，并将其用于列出值并验证提交的值是否来自数组。

class EmergencyInformation < ActiveRecord::Base
  RELATIONSHIPS_TYPES = ["Brother", "Daughter", "Father", "Friend", "Husband", "Mother", "Sister", "Son", "Wife"]
  belongs_to :user

  validates :user_id, :name, presence: true
  validates :relationship, inclusion: RELATIONSHIPS_TYPES
end

# in view
= f.input :relationship, collection: EmergencyInformation::RELATIONSHIPS_TYPES

或者您可以将此数组提取为单独的服务对象，但在这种情况下，它感觉就像过度工程化。

ruby，simple_form Rails，集合

1 个答案: