jbuilder的set!方法重构接口

川长思鸟来 2021-12-24 05:51 243阅读 0赞

https://github.com/rails/jbuilder 的set!方法重构接口，

因为grape没法使用 jBuilder 的缓存，所以直接用 Rails 写 API

（1）多个图片

images: {
      poster: {
        url: "http://r4.ykimg.com/0510000057CD17166714C04FDC0628CE",
        md5: "ee63b0a11cb1e39331d5ce11d38fceec"
    },
      right_top_corner: {
        url: "http://r1.ykimg.com/0510000057CEA19C6714C063660BEB44",
        md5: "e50d520de494538d4633086d46845a81"
      }
    },

原来的方法为

json.images do
        component.pictures.each do |p|
          if p.name == 'poster'
            json.poster do
              json.url "http://r#{rand(4) + 1}.xxx.com/#{p.url}"
              json.md5 p.md5
            end
          end
          if p.name == 'icon'
            json.icon do
              json.url "http://r#{rand(4) + 1}.xxx.com/#{p.url}"
              json.md5 p.md5
            end
          end
          if p.name == 'background'
            json.background do
              json.url "http://r#{rand(4) + 1}.xxx.com/#{p.url}"
              json.md5 p.md5
            end
          end
      end 
    end

精简后为

json.images do
        component.pictures.each do |p| 
          json.set! p.name do
            json.set! :url, "http://r#{rand(4) + 1}.ykimg.com/#{p.url}"
            json.set! :md5, p.md5
          end 
        end 
      end

(2)hints 是一个 hash，遍历 Hash 的文档[ http://ruby-doc.org/core-2.3.1/Hash.html\#method-i-each][http_ruby-doc.org_core-2.3.1_Hash.html_method-i-each]

hint: {
      left: "left",
      right: "111"
    },

精简前

json.hint do
        if component.hints.key?("left")
          json.left component.hints["left"]
        end 
        if component.hints.key?("center")
          json.center component.hints["center"]
        end 
        if component.hints.key?("right")
          json.right component.hints["right"]
        end 
      end

精简后

json.hint do
        component.hints.each do |key,value|
          json.set! key, value
        end
      end

转载于:https://www.cnblogs.com/iwangzheng/p/5864585.html

[http_ruby-doc.org_core-2.3.1_Hash.html_method-i-each]: https://wx2.qq.com/cgi-bin/mmwebwx-bin/webwxcheckurl?requrl=http%3A%2F%2Fruby-doc.org%2Fcore-2.3.1%2FHash.html%23method-i-each&skey=%40crypt_b2a9967a_6f91cdfdb360fe42e704a1f275300b1f&deviceid=e790039533516392&pass_ticket=undefined&opcode=2&scene=1&username=@43988ff2b761b40ccc24f0653819ec273ea16bb65e6c72da29aa661fc507d020