mongoose v4.5.1 发布，让node.js更优雅的操作MongoDB

   <p style="text-align: center;"><img alt="" src="https://simg.open-open.com/show/8b6dbbafd94e5f9bf087b7a0b31ef2d4.jpg" /></p>    <p>Mongoose是MongoDB的一个对象模型工具，既类似ORM，让node.js操作MongoDB更加方便。</p>    <p><strong>官方例子：</strong></p>    <pre>  <code class="language-javascript">// 引入 mongoose 这个模块  var mongoose = require('mongoose');  // 连接对应的数据库：mongodb://localhost/test  mongoose.connect('mongodb://localhost/test');  // 创建了一个名为 Cat 的 model，mongoose 会将名词变为复数，在这里，collection 的名字会是 `cats`。  // model定义: 有一个 String 类型的 name  var Cat = mongoose.model('Cat', {name: String});  var kitty = new Cat({ name: 'Zildjian'});  // 调用 .save 方法后，mongoose 会去你的 mongodb 中的 test 数据库里，存入一条记录。  kitty.save(function (err) {    if (err) {      console.log(err);    } else {      console.log('meow');    }  });</code></pre>    <h2>更新日志</h2>    <ul>     <li>fix(model): ensure wrapped insertMany() returns a promise #4237</li>     <li>fix(populate): dont overwrite populateVirtuals when populating multiple paths #4234</li>     <li>docs(model): clarify relationship between create() and save() #4233</li>     <li>fix(types): handle option param in subdoc remove() #4231 <a href="/misc/goto?guid=4958991591051984987">tdebarochez</a></li>     <li>fix(document): dedupe modified paths #4226 #4223 <a href="/misc/goto?guid=4958991591148389096">adambuczynski</a></li>     <li>fix(model): don't modify user-provided options object #4221</li>     <li>fix(document): handle setting nested path to empty object #4218 #4182</li>     <li>fix(document): clean subpaths when removing single nested #4216</li>     <li>fix(document): don't force transform on subdocs with inspect #4213</li>     <li>fix(error): allow setting .messages object #4207</li>    </ul>    <h2>下载</h2>    <ul>     <li><a href="/misc/goto?guid=4958991591256417804" rel="nofollow"><strong>Source code</strong> (zip)</a></li>     <li><a href="/misc/goto?guid=4958991591340650537" rel="nofollow"><strong>Source code</strong> (tar.gz)</a></li>    </ul>