#生成的表单的每个input属性都有ID属性,其值和name属性的值是一样的 form_tag({controller: "people", action: "search"}, method: "get", class: "nifty_form") #第二个hash参数为html属性 复选框 <%= check_box_tag(:pet_dog, "12") %> 单选框 <%= radio_button_tag(:age, "child") %...
在控制器中定义它并通过helper_method类方法在视图中可用http://apidock.com/rails/ActionController/Helpers/ClassMethods/helper_method 在共享模块中定义它并包含/ extend 小智 27 在application_controller.rb文件中包含ApplicationHelper,如下所示: class ApplicationController < ActionController::Base protect_from_...
如果你想针对一个特定的 Helper 示例手动测试: 导入Webrick 模块。require 'test_helper' # load helper helper_test by default assert_equal 'value', some_helper_method("foo", "bar") 在控制器(例如,controllers/admin/admin_controller.rb)内使用Helper方法。
拉這個 cart 出來直接用。 如果你要在 controller 和 view 都能拉現在的購物車,必須要用 helper_method 宣告這是一個 controller 級的 helper。 class ApplicationController helper_method :current_cart def current_cart cart = Cart.find(session[:cart_id]) return cart end end 這樣你就能在 View 裡面用 ...
helper_method :bear end # in RAILS_ROOT/app/views/stuffed_animals/index.html.erb: <%= bear -%> 它工作得很好。我想测试 :some_helper_method 实际上是一个辅助方法。我试过这个: def test_declared_bear_as_helper_method assert StuffedAnimalsController.helper_methods.include?(:bear) ...
An asset file loader returns aStringrepresenting a SVG document given a filename. Custom asset loaders should be a Ruby object that responds to a method callednamed, that takes one argument (a string representing the filename of the SVG document). ...
rails表单控件helper 1、form加入HTML属性 <%= form_for(@device, :html => {:method=>"post", :id=>"form1", :name=>"form1", :target=>"__hidden_call"}) do |f| %> <% form_for :person, @person, :url => { :action => "update" } %>...
That raw string, if rendered in an non-HTML context (like SMS), must also be sanitized by a method appropriate for that context. You may wish to look into usingLoofahorSanitizeto customize how this sanitization works, including omitting HTML entities in the final string. ...
You can also use the change method, instead of the up/down combination above, as shown below:class CreateUsersWithAttachments < ActiveRecord::Migration def change create_table :users do |t| t.attachment :avatar end end end Schema DefinitionAlternatively, the add_attachment and remove_attachment ...
<% form_for “auction”, :url => auction(@auction),:html => { :method => :put } do |f| %> The PUT and DELETE Cheat 浏览器通常不会支持GET, POST以外的HTTP方法,为了发送PUT,DELETE请求,Rails做了一些小技巧。 PUT, DELETE请求,在Rest in Rails的上下文中,实际上是带有一个隐藏域“_method...