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将“当前”类添加到Rails 3中导航的最佳方法

ruby-on-rails-3 navigation

110

PeterWong · 技术社区 · 15 年前

我在导航菜单中有一些静态页面。我想在当前显示的项目中添加一个类似“current”的类。

我这样做的方法是添加大量助手方法(每个方法用于一个项目)来检查控制器和操作。

def current_root_class
  'class="current"' if controller_name == "homepage" && action_name == "index" 
end

<ul>
  <li <%= current_root_class %>><%= link_to "Home", root_path %>

有没有更好的办法呢?我现在的方式太愚蠢了……

24 回复 | 直到 9 年前

Yannis 15 年前

  def controller?(*controller)
    controller.include?(params[:controller])
  end

  def action?(*action)
    action.include?(params[:action])
  end

if controller?("homepage") && action?("index", "show")

287

Skilldrick 14 年前

nav_link

def nav_link(link_text, link_path)
  class_name = current_page?(link_path) ? 'current' : ''

  content_tag(:li, :class => class_name) do
    link_to link_text, link_path
  end
end

nav_link 'Home', root_path

<li class="current"><a href="/">Home</a></li>

Juan Pablo Ugas 10 年前

current_page? "current"

<%= 'active' if current_page?(home_about_path) %>

current_page?(root_path)

Peyton 14 年前

def nav_link(text, link)
    recognized = Rails.application.routes.recognize_path(link)
    if recognized[:controller] == params[:controller] && recognized[:action] == params[:action]
        content_tag(:li, :class => "active") do
            link_to( text, link)
        end
    else
        content_tag(:li) do
            link_to( text, link)
        end
    end
end

<%=nav_link("About Us", about_path) %>

fullybaked user2362083 15 年前

def current_class?(test_path)
  return 'current' if request.request_uri == test_path
  ''
end

<%= link_to 'Home', root_path, :class => current_class?(root_path) %>

Praveen Kumar Purushothaman 13 年前

$('.active').closest('li.dropdown').addClass('active');

def nav_link_to(link_text, link_path)
  class_name = current_page?(link_path) ? 'active' : ''

  content_tag(:li, :class => class_name) do
    link_to link_text, link_path
  end
end

nav_link_to 'Home', root_path

<li class="active"><a href="/">Home</a></li>

IPIvliev 12 年前

def is_active(controller, action)       
  params[:action] == action && params[:controller] == controller ? "active" : nil        
end

<li class="<%= is_active('controller', 'action') %>">

fuyi 12 年前

active_link_to

Little Phild 10 年前

    <li class="<%= 'active' if current_page?(root_path) %>"><%= link_to 'Home', controller: "welcome" %></li>
    <li class="<%= 'active' if current_page?(about_path) %>"><%= link_to 'About us', about_path %></li>
   <li class="<%= 'active' if current_page?(contact_path) %>"><%= link_to 'Contact us', contact_path %></li>

icecream 15 年前

Tabs on Rails

Petros Kyriakou 10 年前

<li class="<%= 'active' if current_page?(inventory_index_path) %>"><a href="#">Menu</a></li>

$('.active').closest(".collapsible.collapsible-accordion")
            .find(".collapsible-header")
            .click();

unrelativity 14 年前

current_page?

  def nav_link_to(link_text, link_path, checks=nil)
    active = false
    if not checks.nil?
      active = true
      checks.each do |check,v|
        if not v.include? params[check]
          active = false
          break
        end
      end
    end

    return content_tag :li, :class => (active ? 'active' : '') do
      link_to link_text, link_path
    end
  end

nav_link_to "Pages", pages_url, :controller => 'pages'

Joe Chen 13 年前

def nav_link(*args, &block)
    if block_given?
      options      = args.first || {}
      html_options = args.second
      nav_link(capture(&block), options, html_options)
    else
      name         = args[0]
      options      = args[1] || {}
      html_options = args[2]

      html_options = convert_options_to_data_attributes(options, html_options)
      url = url_for(options)

      class_name = current_page?(url) ? 'active' : nil

      href = html_options['href']
      tag_options = tag_options(html_options)

      href_attr = "href=\"#{ERB::Util.html_escape(url)}\"" unless href
      "<li class=\"#{class_name}\"><a #{href_attr}#{tag_options}>#{ERB::Util.html_escape(name || url)}</a></li>".html_safe
    end
  end

nav component

ul.nav.nav-list
  =nav_link root_path do
    i.icon-home
    |  Home
  =nav_link "#" do
    i.icon-user
    |  Users

<ul class="nav nav-list">
  <li class="active">
    <a href="/">
      <i class="icon-home"/>
      Home
    </a>
  </li>
  <li>
    <a href="#">
      <i class="icon-users"/>
      Users
    </a>
  </li>
</ul>

ul.nav.nav-list
  =nav_link root_path, title:"Home" do
    i.icon-home
    |  Home
  =nav_link "#", title:"Users" do
    i.icon-user
    |  Users

<ul class="nav nav-list">
  <li class="active">
    <a href="/" title="Home">
      <i class="icon-home"/>
      Home
    </a>
  </li>
  <li>
    <a href="#" title="Users">
      <i class="icon-users"/>
      Users
    </a>
  </li>
</ul>

Dan Tello 13 年前

A Better Way to Add a âselectedâ Class to Links in Rails

<%= nav_link 'My_Page', 'http://example.com/page' %>

https://gist.github.com/3279194

http://rubygems.org/gems/nav_link_to

complistic 12 年前

/stories/my-story /stories

def nav_link text, url

  active = (url == request.fullpath || (url != '/' && request.fullpath[0..(url.size-1)] == url))

  "<li#{ active ? " class='selected'" : '' }><a href='#{url}'>#{text}</a></li>".html_safe

end

Mike Andrianov 12 年前

  <ul class="nav">
    <%= nav_tabs(@tabs) %> 
  </ul>

 def nav_tabs(tabs=[])
    html = []
    tabs.each do |tab| 
      html << (content_tag :li, :class => ("current-page" if request.fullpath.split(/[\??]/)[0] == tab[:path]) do
        link_to tab[:path] do
          content_tag(:i, '', :class => tab[:icon]) +
          tag(:br) +
          "#{tab[:name]}"
        end
      end)        
    end

    html.join.html_safe
  end

before_filter :set_navigation_tabs

private
def set_navigation_tabs
  @tabs = 
    if current_user && manager?
      [
        { :name => "Home", :icon => "icon-home", :path => home_index_path },
        { :name => "Portfolio", :icon => "icon-camera", :path => portfolio_home_index_path },
        { :name => "Contact", :icon => "icon-envelope-alt", :path => contact_home_index_path }
      ]
    elsif current_user && client?
      ...
    end

Community Mohan Dere 9 年前

answer by Skilldrick

def nav_link(*args, &block)
  is_active = current_page?(args[0]) || current_page?(args[1])
  class_name = is_active ? 'active' : nil

  content_tag(:li, class: class_name) do
    link_to *args, &block
  end
end

Benjamin J. Benoudis 11 年前

nav_link "A Page", a_page_path

nav_link a_page_path do
  <strong>A Page</strong>
end

  def nav_link(name = nil, options = nil, html_options = nil, &block)
    html_options, options, name = options, name, block if block_given?
    options ||= {}

    html_options = convert_options_to_data_attributes(options, html_options)

    url = url_for(options)
    html_options['href'] ||= url

    class_name = current_page?(url) ? 'current' : ''
    content_tag(:li, :class => class_name) do  
      content_tag(:a, name || url, html_options, &block)
    end
  end

Community Mohan Dere 9 年前

link_to
application_helper.rb
active

def active_class?(class_name = nil, path)
  class_name ||= ""
  class_name += " active" if current_page?(path)
  class_name.strip!
  return class_name
end

<div class="col-xs-3">
  <%= link_to root_path, :class => active_class?("btn btn-outline-primary", root_path) do %>
    <i class="fa fa-list-alt fa-fw"></i>
  <% end %>
</div>

class_name <div class="<%= current_page?(root_path) %>">

1 2 resources

user762579 14 年前

GN. 13 年前

def class_if_current_page(current_page = {}, *my_class)
    if current_page?(current_page)
      my_class.each do |klass|
        "#{klass} "
      end
    end
  end

li = link_to company_path 
    class: %w{ class_if_current_page( { status: "pending" }, "active" ), "company" } do  
      Current Company

Lwin Htoo Ko 10 年前

application.html.erb

<div class="navbar">
    <div class="<%= @menu1_current %> first-item"><a href="/menu1"> MENU1 </a></div>
    <div class="<%= @menu2_current %>"><a href="/menu2"> MENU2 </a></div>
    <div class="<%= @menu3_current %>"><a href="/menu3"> MENU3 </a></div>
    <div class="<%= @menu4_current %> last-item"><a href="/menu4"> MENU4 </a></div>
</div>

main_controller.erb

class MainController < ApplicationController
    def menu1
        @menu1_current = "current"
    end

    def menu2
        @menu2_current = "current"
    end

    def menu3
        @menu3_current = "current"
    end

    def menu4
        @menu4_current = "current"
    end
end

Ken Hibino 10 年前

def nav_link_to(text, url, options = {})
  options[:class] ||= ""
  options[:class] += " active"
  options[:class].strip!
  link_to text, url, options
end

<%= nav_link_to "About", about_path, class: "my-css-class" %>

Lalit Kumar Maurya 9 年前

ApplicationHelper

def active controllers, action_names = nil
  class_name = controllers.split(",").any? { |c| controller.controller_name == c.strip } ? "active" : ""
  if class_name.present? && action_names.present?
    return action_names.split(",").any? { |an| controller.action_name == an.strip } ? "active" : ""
  end
  class_name
end

<li class="<%= active('controller_name')%>">
....
</li>

<li class="<%= active('controller_name1,controller_name2')%>">
....
</li>

<li class="<%= active('controller_name', 'action_name')%>">
....
</li>

<li class="<%= active('controller_name1,controller_name2', 'action_name')%>">
....
</li>

<li class="<%= active('controller_name', 'index, show')%>">
....
</li>

<li class="<%= active('controller_name1,controller_name2', 'index, show')%>">
....
</li>