Question

这只是出于好奇，这是运行rails g scaffold Thing生成的控制器：

class ThingsController < ApplicationController
  # GET /things
  # GET /things.json
  def index
    @things = Thing.all

    respond_to do |format|
      format.html # index.html.erb
      format.json { render json: @things }
    end
  end

  # GET /things/1
  # GET /things/1.json
  def show
    @thing = Thing.find(params[:id])

    respond_to do |format|
      format.html # show.html.erb
      format.json { render json: @thing }
    end
  end

  # GET /things/new
  # GET /things/new.json
  def new
    @thing = Thing.new

    respond_to do |format|
      format.html # new.html.erb
      format.json { render json: @thing }
    end
  end

  # GET /things/1/edit
  def edit
    @thing = Thing.find(params[:id])
  end

  # POST /things
  # POST /things.json
  def create
    @thing = Thing.new(params[:thing])

    respond_to do |format|
      if @thing.save
        format.html { redirect_to @thing, notice: 'Thing was successfully created.' }
        format.json { render json: @thing, status: :created, location: @thing }
      else
        format.html { render action: "new" }
        format.json { render json: @thing.errors, status: :unprocessable_entity }
      end
    end
  end

  # PUT /things/1
  # PUT /things/1.json
  def update
    @thing = Thing.find(params[:id])

    respond_to do |format|
      if @thing.update_attributes(params[:thing])
        format.html { redirect_to @thing, notice: 'Thing was successfully updated.' }
        format.json { head :no_content }
      else
        format.html { render action: "edit" }
        format.json { render json: @thing.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /things/1
  # DELETE /things/1.json
  def destroy
    @thing = Thing.find(params[:id])
    @thing.destroy

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

除了format之外，

Rails在每个操作中都包含edit块...为什么会这样？从理论上讲，为json服务器的另一个应用程序仍然希望显示正在编辑的内容，对吧？这很容易加入，但我很好奇为什么他们选择这样做。

Answer 1

如果您想知道要更新的内容，可以通过show操作进行更新。

为什么Rails脚手架不包含Json渲染控制器中的编辑？

1 个答案: