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                # 瀏覽器中的schemas > 原文:[Mongoose in the browser](http://mongoosejs.com/docs/browser.html) ## 瀏覽器中的Mongoose 在3.9.3,Mongoose模式的聲明是同構的,那就是,你可以用mongoose的瀏覽器組件來驗證對象在瀏覽器中對你的mongoose模式。 包括mongoose在你的瀏覽器代碼,你可以使用`require('mongoose')`如果你使用的是[Browserify](https://www.npmjs.com/package/browserify)或可通過script標簽引入的mongoose。下面的例子使用mongoose的Amazon的[CloudFront](http://aws.amazon.com/cloudfront/) CDN。 ``` <script type="text/javascript" src="//d1l4stvdmqmdzl.cloudfront.net/4.0.2/mongoose.js"> </script> ``` #### 瀏覽器中聲明模式 When you include the mongoose.js file in a script tag, mongoose will attach a mongoose object to the global window. This object includes a Schema constructor that you can use to define schemas much like in NodeJS. 當你有一個腳本標簽的mongoose.js文件,mongoose會附上mongoose對象全局窗口。此對象包含模式的構造函數,您可以使用來定義模式就像在NodeJS。 注:Mongoose的瀏覽器組件需要一個ECMAScript 5標準的瀏覽器。特別是,它不會在Internet Explorer 8或Safari 5的工作。 #### 允許你使用mongoose類型 ``` var foodSchema = new mongoose.Schema({name: String}); var breakfastSchema = new mongoose.Schema({ foods: [foodSchema], date: {type: Date, default: Date.now} }); assert.ok(foodSchema.path('name') instanceof mongoose.Schema.Types.String); assert.ok(breakfastSchema.path('foods') instanceof mongoose.Schema.Types.DocumentArray); assert.ok(breakfastSchema.path('date') instanceof mongoose.Schema.Types.Date); ``` ### 在瀏覽器中驗證文檔 mongoose的瀏覽器組件的主要目的是驗證對一個給定的模式驗證文檔。因為mongoose瀏覽器組件目前不支持任何形式的查詢,你負責創建自己的文檔。 #### 允許您創建一個模式并使用它來驗證文檔 ``` var schema = new mongoose.Schema({ name: {type: String, required: true}, quest: {type: String, match: /Holy Grail/i, required: true}, favoriteColor: {type: String, enum: ['Red', 'Blue'], required: true} }); /* `mongoose.Document` is different in the browser than in NodeJS. * the constructor takes an initial state and a schema. You can * then modify the document and call `validate()` to make sure it * passes validation rules. */ var doc = new mongoose.Document({}, schema); doc.validate(function(error) { assert.ok(error); assert.equal('Path `name` is required.', error.errors['name'].message); assert.equal('Path `quest` is required.', error.errors['quest'].message); assert.equal('Path `favoriteColor` is required.', error.errors['favoriteColor'].message); doc.name = 'Sir Lancelot of Camelot'; doc.quest = 'To seek the holy grail'; doc.favoriteColor = 'Blue'; doc.validate(function(error) { assert.ifError(error); doc.name = 'Sir Galahad of Camelot'; doc.quest = 'I seek the grail'; // Invalid, must contain 'holy grail' doc.favoriteColor = 'Yellow'; // Invalid, not 'Red' or 'Blue' doc.validate(function(error) { assert.ok(error); assert.ok(!error.errors['name']); assert.equal('Path `quest` is invalid (I seek the grail).', error.errors['quest'].message); assert.equal('`Yellow` is not a valid enum value for path `favoriteColor`.', error.errors['favoriteColor'].message); done(); }); }); }); ```
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