Backbone model.save在状态码200上调用错误函数

Question

this.model.save(newModel, {error: function (e){
        alert("Error trying to save contact: " + e);
        console.log(e);
    }});

Above is the code that is running on the client side. the server code is

model.update_contact(contact, function(err){
        if(err){
            res.statusCode = 500;
            return res.json({"Database error" : err});
        }
        return res.end();
    });

inspecting the network traffic i see that the server responds with status code 200 but the web page shows the alert message "Error trying to save contact: [Object object]"

ps the db query is successful

Answer 1

Backbone expects to get the model's JSON back in response to PUT or POST requests IIRC.

Instead of returning res.end() try this:

return res.json(contact);

Answer 2

Dumb mistake, my server was not properly returning the object back. Once i added code to return the object everything ran fine.