Ruby on rails Rails 3所需的独特友谊帮助

我需要关于友谊独特性和添加朋友链接的帮助 my routes.rb：

devise_for :users

resources :users, only: [:index, :show] do
          resources :friendships, only: [:create, :destroy]
          end

我的用户模型：

class User < ActiveRecord::Base
  # Include default devise modules. Others available are:
  # :token_authenticatable, :confirmable,
  # :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  # Setup accessible (or protected) attributes for your model
  attr_accessible :email, :password, :password_confirmation, :remember_me, :username
  # attr_accessible :title, :body
  has_many :topics
  has_many :posts
  has_many :friendships
    has_many :friends, :through => :friendships
    has_many :inverse_friendships, :class_name => "Friendship", :foreign_key => "friend_id"
    has_many :inverse_friends, :through => :inverse_friendships, :source => :user
end

class用户：友谊
有很多：反向友谊，：类名称=>“友谊”；：外键=>“朋友id”
有很多：反向朋友，：通过=>：反向朋友，：来源=>：用户
结束

我的友谊模式：

class Friendship < ActiveRecord::Base
  attr_accessible :friend_id, :user_id
  belongs_to :user
    belongs_to :friend, :class_name => "User"
end

类友谊“用户”
结束

friendships_controller.rb：

class FriendshipsController < ApplicationController
    before_filter :authenticate_user!

    def create
        @friendship = current_user.friendships.build(:friend_id => params[:friend_id])
        if @friendship.save
            flash[:notice] = "Arkadaşlara eklendi."
            redirect_to root_url
        else
            flash[:error] = "Arkadaşlara Eklenemiyor."
            redirect_to root_url
        end
    end

    def destroy
        @friendship = current_user.friendships.find(params[:id])
        @friendship.destroy
        flash[:notice] = "Arkadaşlarımdan kaldırıldı."
        redirect_to current_user
    end
end

class UsersController < ApplicationController
    before_filter :authenticate_user!

  def index
        @users = User.all
  end
  def show
    @user = User.find(params[:id])
    @topics = @user.topics.paginate(page: params[:page])
    @friendship = @user.friendships.build(:friend_id => params[:friend_id])
    @friendships = @user.friendships.all

  end 
end

类友谊控制器params[：friend\u id]）
如果@friendy.save
闪光[：注意]=“Arkadaşlara eklendi。”
将\u重定向到根\u url
其他的
闪光[：错误]=“Arkadaşlara Eklenemiyor。”
将\u重定向到根\u url
结束
结束
def销毁
@Friendly=当前用户.friendships.find（参数[：id]）
@友谊。毁灭
闪光[注意]=“Arkadaşlarımdan kaldırıldı。”
将\u重定向到当前\u用户
结束
结束

用户\u controller.rb：

class FriendshipsController < ApplicationController
    before_filter :authenticate_user!

    def create
        @friendship = current_user.friendships.build(:friend_id => params[:friend_id])
        if @friendship.save
            flash[:notice] = "Arkadaşlara eklendi."
            redirect_to root_url
        else
            flash[:error] = "Arkadaşlara Eklenemiyor."
            redirect_to root_url
        end
    end

    def destroy
        @friendship = current_user.friendships.find(params[:id])
        @friendship.destroy
        flash[:notice] = "Arkadaşlarımdan kaldırıldı."
        redirect_to current_user
    end
end

class UsersController < ApplicationController
    before_filter :authenticate_user!

  def index
        @users = User.all
  end
  def show
    @user = User.find(params[:id])
    @topics = @user.topics.paginate(page: params[:page])
    @friendship = @user.friendships.build(:friend_id => params[:friend_id])
    @friendships = @user.friendships.all

  end 
end

class UsersControllerparams[：friend\u id]）
@friendships=@user.friendships.all
结束
结束

这是我的朋友添加链接：

 <h1>
        <%= @user.username %>
      </h1>

            <%= link_to "Arkadaşlarıma Ekle", friendships_path(:friend_id => @user), :method => :post,class: "btn btn-large btn-primary" %>

@用户），：方法=>:post，类：“btn btn大型btn主”%>

而且我找不到正确的路径来将用户显示为朋友

<%  for friendship in @friendships %> 
<%= link_to friendship.friend.username, '#' %>
(<%= link_to 'Sil', friendship, :method => :delete %>)
<% end %>

（：删除%>）

---

有人能帮我吗？

鉴于嵌套路由，它需要了解用户才能获得友谊。您可以使用很酷的辅助工具，从对象获取路径

有点像红宝石

<%  @friendships.each do |friendship} %> 
  <%= link_to friendship.friend.username, '#' %>
  (<%= link_to 'Sil', [@user, friendship], :method => :delete %>)
<% end %>

（：删除%>）

它将类似于“添加到朋友”链接。。。但我不清楚其中的逻辑——在这个阶段你有哪个@user？@user是登录用户还是“当前”用户

既然你用的是Deave。。。您可能真正想要的是：

<%  current_user.friendships.each do |friendship} %> 
  <%= link_to friendship.friend.username, '#' %>
  (<%= link_to 'Sil', [current_user, friendship], :method => :delete %>)
<% end %>

（：删除%>）

如果此代码段来自其他用户的页面。。。那就更像是

<h1><%= @user.username %></h1>

<%= link_to "Arkadaşlarıma Ekle", user_friendships_path(current_user, :friend_id => @user), :method => :post, class: "btn btn-large btn-primary" %>

@用户），：方法=>:post，类：“btn btn大型btn主”%>

在控制台中，您可以运行

rake routes

这将显示所有可用的路由及其名称。这完全取决于您想要使用多少javascript以及您追求的用户体验。我不需要嵌套属性，只需在friendships controller中调用现有的

create

操作即可。