link_to創建並銷燬來自其他資源的資源

下面的代碼正在工作，但我想知道是否有更好的方法來完成此操作。這是正確的RESTful方式嗎？任何的意見都將會有幫助。其基本要求是，我需要一種方法來創建和銷燬從地方會員/ show.html.erblink_to創建並銷燬來自其他資源的資源

class Place < ActiveRecord::Base 
    has_many :memberships 
    has_many :members, :through => :memberships, :source => :user 

    def membership_for_user(user) 
    self.memberships.select{|m| m.user_id == user.id} 
    end 
end 

class User < ActiveRecord::Base 
    has_many :memberships 
end 

class Membership < ActiveRecord::Base 
    belongs_to :user 
    belongs_to :place 
end 

class MembershipsController < ApplicationController 
    def create 
    @membership = Membership.new({:user_id => current_user.id, :place_id => params[:place_id]}) 
    unless @membership.save 
     flash[:notice] = "Unable to become member." 
    end 
    redirect_to place_path(params[:place_id]) 
    end 

    def destroy 
    @membership = Membership.find(params[:id]) 
    place_id = @membership.place_id 
    @membership.destroy 
    redirect_to place_path(place_id) 
    end 
end

地方/ show.html.erb

<%= link_to 'Join', memberships_path(:place_id => @place.id), :method => :post %> 
<%= link_to 'Cancel', @place.membership_for_user(current_user), :method => :delete %>

來源

2009-09-30 ejunker