钢轨放置vs柱子

Question

#Assume this is a put request
def update
    @model=Model.find(x)
    @model.field="new_field"
    @model.save
end

#Assume this is a post request
def update
    @model=Model.find(x)
    @model.field="new_field"
    @model.save
end

#What if I use the rails update method?
def update
    @model=Model.find(x)
    @model.update(model_params)
    @model.save
end

提前谢了。

Answer 1

根据rails公约，

PUT用于更新现有资源

POST用于创建新资源

在Rails4中，PUT被改为PATCH，以避免混淆。

默认情况下，Rails生成的路由如下所示

    posts GET    /posts(.:format)                            {:action=>"index", :controller=>"posts"}
          POST   /posts(.:format)                            {:action=>"create", :controller=>"posts"}
 new_post GET    /posts/new(.:format)                        {:action=>"new", :controller=>"posts"}
edit_post GET    /posts/:id/edit(.:format)                   {:action=>"edit", :controller=>"posts"}
     post GET    /posts/:id(.:format)                        {:action=>"show", :controller=>"posts"}
          PUT    /posts/:id(.:format)                        {:action=>"update", :controller=>"posts"}
          DELETE /posts/:id(.:format)                        {:action=>"destroy", :controller=>"posts"}

注意放置和张贴的动作