ruby-on-rails - ruby on rails 在 Controller 中使用 "create"方法，因为 GET 不工作

Question

Friendships_controller.rb

class FriendshipsController < ApplicationController

  # POST /friendships
  # POST /friendships.json
  def create

    #@friendship = Friendship.new(params[:friendship])
    @friendship = current_user.friendships.build(:friend_id => params[:friend_id])

    respond_to do |format|
      if @friendship.save
        format.html { redirect_to user_profile(current_user.username), notice: 'Friendship was successfully created.' }
        format.json { render json: @friendship, status: :created, location: @friendship }
      else
        format.html { redirect_to user_profile(current_user.username), notice: 'Friendship was not created.' }
        format.json { render json: @friendship.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /friendships/1
  # DELETE /friendships/1.json
  def destroy
    @friendship = Friendship.find(params[:id])
    @friendship.destroy

    respond_to do |format|
      format.html { redirect_to friendships_url }
      format.json { head :no_content }
    end
  end
end

当我去 http://localhost:3000/friendships?friend_id=1我明白了

Unknown action

The action 'index' could not be found for FriendshipsController

我遵循了本教程: http://railscasts.com/episodes/163-self-referential-association

Answer 1

您可能将创建配置为 POST 而不是 GET。

  # POST /friendships
  # POST /friendships.json
  def create

如果您使用脚手架来创建 Controller 的骨架，情况也是如此。您可以在路由配置中更改此设置。但请注意，通过 GET 创建内容不再被视为完全符合 REST 范式。