【问题标题】:ActionView::Template::Error (wrong number of arguments (6 for 4..5)) with rails, active admin and simple formActionView::Template::Error (错误数量的参数 (6 for 4..5)) 与 rails, active admin and simple form
【发布时间】:2015-10-03 15:26:42
【问题描述】:

我有一个带有 rails4、activeadmin 和 simpleform 的应用程序。我已经更改了我的 simple_form.rb 配置。从那时起,当我访问 localhost:3000/admin/login 时,我得到:

ActionView::Template::Error (wrong number of arguments (6 for 4..5)):
    5:   <%= active_admin_form_for(resource, :as => resource_name, :url => send(:"#{scope}_session_path"), :html => { :id => "session_new" }) do |f|
    6:     f.inputs do
    7:       resource.class.authentication_keys.each { |key| f.input key, :input_html => {:autofocus => true}}
    8:       f.input :password
    9:       f.input :remember_me, :label => t('active_admin.devise.login.remember_me'), :as => :boolean, :if =>  false  #devise_mapping.rememberable? }
    10:     end
    11:     f.actions do
  simple_form (2.1.0) lib/simple_form/inputs/base.rb:50:in `initialize'
  formtastic (2.2.1) lib/formtastic/helpers/input_helper.rb:240:in `new'
  formtastic (2.2.1) lib/formtastic/helpers/input_helper.rb:240:in `input'
...

Gemfile.lock:

...
rails (3.2.13)
activeadmin (0.6.0)
formtastic (2.2.1)
simple_form (2.1.0)

导致错误的原因是什么?

【问题讨论】:

    标签: ruby-on-rails-3.2 activeadmin simple-form formtastic


    【解决方案1】:

    在此线程上:https://github.com/activeadmin/activeadmin/issues/2703,SpecialCyCi 有一个可以解决此问题的 hack。

    config/initializers/simple_form.rb 的顶部,输入以下内容:

    inputs = %w[
      CollectionSelectInput
      DateTimeInput
      FileInput
      GroupedCollectionSelectInput
      NumericInput
      PasswordInput
      RangeInput
      StringInput
      TextInput
    ]
    
    inputs.each do |input_type|
      superclass = "SimpleForm::Inputs::#{input_type}"
      hack = %|
        module SimpleForm
          module Inputs
            class #{superclass}
              def input_html_classes
                super.push('form-control')
              end
            end
          end
        end
      |
      eval(hack)
    
    end
    
    SimpleForm.setup do |config|
      # your config here...
      # ...
    end
    

    【讨论】:

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