Backbone.emulateHTTP

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2023-12-01

描述 (Description)

如果您使用的是不支持Backbone默认REST/HTTP方法的旧Web服务器，则可以选择打开Backbone.emulateHTTP。将此选项设置为true将使用HTTP POST伪造PUT，PATCH和DELETE请求，并使用true方法设置X-HTTP-Method-Override标头。如果同时启用了emulateJSON，则true方法将作为附加的_method参数传递。

语法 (Syntax)

Backbone.emulateHTTP = true

例子 (Example)

<!DOCTYPE html>
   <head>
      <title>Sync Example</title>
      <script src = "https://code.jquery.com/jquery-2.1.3.min.js" 
         type = "text/javascript"></script>
      <script src = "https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.2/underscore-min.js" 
         type = "text/javascript"></script>
      <script src = "https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.1.2/backbone-min.js" 
         type = "text/javascript"></script>
   </head>
   <body>
      <script type = "text/javascript">
         //If web server that doesn't support Backbone's REST/HTTP approach, 
         //then turn on 'Backbone.emulateHTTP'
         Backbone.emulateHTTP = true;
         //If web server can't handle requests encoded as application/json, 
         //then set the 'Backbone.emulateJSON' to true
         Backbone.emulateJSON = true;
         //The sync() method reads and fetch the model data
         Backbone.sync = function(method, model) {
            document.write(method + ": " + JSON.stringify(model));
            model.set('id', 1);   //Set the model with id as '1'
         };
         //'Player' is a model name and contains the values to be displayed 
         //when you save the model
         var Player = new Backbone.Model({
            fname:"Sachin",
            lname:"Tendulkar"
         });
         //The 'save()' method saves data of the model by delegating to sync() method
         Player.save();
         //Update the model with a value
         Player.save({country: "india"});
      </script>
   </body>
</html>