Neil Zhu熊响，簡(jiǎn)書ID Not_GOD，University AI 創(chuàng)始人 & Chief Scientist秸弛，致力于推進(jìn)世界人工智能化進(jìn)程剔难。制定并實(shí)施 UAI 中長(zhǎng)期增長(zhǎng)戰(zhàn)略和目標(biāo)，帶領(lǐng)團(tuán)隊(duì)快速成長(zhǎng)為人工智能領(lǐng)域最專業(yè)的力量偶宫。
作為行業(yè)領(lǐng)導(dǎo)者纯趋，他和UAI一起在2014年創(chuàng)建了TASA（中國(guó)最早的人工智能社團(tuán)）, DL Center（深度學(xué)習(xí)知識(shí)中心全球價(jià)值網(wǎng)絡(luò)）冷离，AI growth（行業(yè)智庫培訓(xùn)）等，為中國(guó)的人工智能人才建設(shè)輸送了大量的血液和養(yǎng)分西剥。此外，他還參與或者舉辦過各類國(guó)際性的人工智能峰會(huì)和活動(dòng)揪阿，產(chǎn)生了巨大的影響力咆畏，書寫了60萬字的人工智能精品技術(shù)內(nèi)容，生產(chǎn)翻譯了全球第一本深度學(xué)習(xí)入門書《神經(jīng)網(wǎng)絡(luò)與深度學(xué)習(xí)》溺健，生產(chǎn)的內(nèi)容被大量的專業(yè)垂直公眾號(hào)和媒體轉(zhuǎn)載與連載钮蛛。曾經(jīng)受邀為國(guó)內(nèi)頂尖大學(xué)制定人工智能學(xué)習(xí)規(guī)劃和教授人工智能前沿課程剖膳，均受學(xué)生和老師好評(píng)岭辣。
Active Model JSON Serializer
methods
- A
as_json - F
from_json
Included Modules
- ActiveModel::Serialization
Instance Public methods
as_json(options = nil)
返回表示這個(gè)模型的hash。部分配置可以通過options傳遞枕荞。
option include_root_in_json控制了as_json的頂層行為搞动。如果設(shè)置為true，as_json將忽略掉該對(duì)象類型的根節(jié)點(diǎn)鹦肿。include_root_in_json選項(xiàng)的默認(rèn)值是false。
user = User.find(1)
user.as_json
# => { "id" => 1, "name" => "Konata Izumi", "age" => 16,
# "created_at" => "2006/08/01", "awesome" => true}
ActiveRecord::Base.include_root_in_json = true
user.as_json
# => { "user" => { "id" => 1, "name" => "Konata Izumi", "age" => 16,
# "created_at" => "2006/08/01", "awesome" => true } }
這個(gè)效果同樣可以通過設(shè)置root選項(xiàng)為true達(dá)到：
user = User.find(1)
user.as_json(root: true)
# => { "user" => { "id" => 1, "name" => "Konata Izumi", "age" => 16,
# "created_at" => "2006/08/01", "awesome" => true } }
若是沒有任何的選項(xiàng)瞭吃，則返回的Hash將會(huì)包含這個(gè)模型的所有屬性：
user.as_json(only: [:id, :name])
# => { "id" => 1, "name" => "Konata Izumi" }
user.as_json(except: [:id, :created_at, :age])
# => { "name" => "Konata Izumi", "awesome" => true }
包含對(duì)模型的某些方法的調(diào)用的結(jié)果使用methods：
user.as_json(methods: :permalink)
# => { "id" => 1, "name" => "Konata Izumi", "age" => 16,
# "created_at" => "2006/08/01", "awesome" => true,
# "permalink" => "1-konata-izumi" }
包含關(guān)聯(lián)則可以使用include：
user.as_json(include: :posts)
# => { "id" => 1, "name" => "Konata Izumi", "age" => 16,
# "created_at" => "2006/08/01", "awesome" => true,
# "posts" => [ { "id" => 1, "author_id" => 1, "title" => "Welcome to the weblog" },
# { "id" => 2, "author_id" => 1, "title" => "So I was thinking" } ] }
第二層和更高層的關(guān)聯(lián)同樣可以使用：
user.as_json(include: { posts: {
include: { comments: {
only: :body } },
only: :title } })
# => { "id" => 1, "name" => "Konata Izumi", "age" => 16,
# "created_at" => "2006/08/01", "awesome" => true,
# "posts" => [ { "comments" => [ { "body" => "1st post!" }, { "body" => "Second!" } ],
# "title" => "Welcome to the weblog" },
# { "comments" => [ { "body" => "Don't think too hard" } ],
# "title" => "So I was thinking" } ] }
from_json(json, include_root=include_root_in_json)
使用一個(gè)JSON字符串來設(shè)置模型屬性。返回self霹陡。
class Person
include ActiveModel::Serializers::JSON
attr_accessor :name, :age, :awesome
def attributes=(hash)
hash.each do |key, value|
send("#{key}=", value)
end
end
def attributes
instance_values
end
end
json = { name: 'bob', age: 22, awesome:true }.to_json
person = Person.new
person.from_json(json) # => #<Person:0x007fec5e7a0088 @age=22, @awesome=true, @name="bob">
person.name # => "bob"
person.age # => 22
person.awesome # => true
include_root默認(rèn)值為false烹棉。如果給定的JSON串包含了單一的根節(jié)點(diǎn)，那你可以改設(shè)為false浆洗。
json = { person: { name: 'bob', age: 22, awesome: true } }.to_json
person = Person.new
person.from_json(json)
person.name
person.age
person.awesome
