ActionController::ResponderResponders na sua aplicação Rails

Responders são responsavéis por

Expor os resources para diferentes MIME requestes

"MIME types" são usados para identificar otipo de informação que um arquivo contém

Controllers gigantesclass ProjectsController < ApplicationController

def index

@projects = Project.all

respond_to do |format|

format.html # index.html.erb

format.json { render json: @projects }

end

end

def show

@project = Project.find(params[:id])

respond_to do |format|

format.html # show.html.erb

format.json { render json: @project }

end

end

def new

@project = Project.new

respond_to do |format|

format.html # new.html.erb

format.json { render json: @project }

end

end

Letras pequenas, sinal de coisa ruim

Preciso enxugar meus controllersclass ProjectsController < ApplicationController before_filter :find_project, :only => [:show, :edit, :update, :destroy]] respond_to :html, :jsondef index @projects = Project.all respond_with @projectsenddef show respond_with @projectenddef new @project = Project.new respond_with @projectenddef editend

Condicionais

KEEP CALM and WRITE TESTS

Responders são personalizavéisapp/responders/application_responder.rbapp/responders/create_responder.rbapp/responders/update_responder.rb

gem 'responders' (github.com/plataformatec/responders)FlashResponder rails generate responders:install

Actions create e updatedef create

@project = Project.new(params[:project])

respond_to do |format|

if @project.save

format.html { redirect_to @project, notice: 'Project was successfully created.' }

format.json { render json: @project, status: :created, location: @project }

else

format.html { render action: "new" }

format.json { render json: @project.errors, status: :unprocessable_entity }

end

end

end

def update

@project = Project.find(params[:id])

respond_to do |format|

if @project.update_attributes(params[:project])

format.html { redirect_to @project, notice: 'Project was successfully updated.' }

format.json { head :no_content }

else

format.html { render action: "edit" }

format.json { render json: @project.errors, status: :unprocessable_entity }

end

end

end

Perimta que o responder cuide da lógica dos "MIME" e alguns condicionais

before_filter :find_project, :only => [:show, :edit. :update, :destroy]def create @project = Project.new(params[:project]) respond_with(@project, :location => @project)end def update @project.update_attributes(params[:projects]) respond_with(@project, :location => @projects) end

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