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    <p>There are two ways to solve this:</p> <ul> <li>Inheriting Backbone Model</li> </ul> <p>You could create your own custom model which inherits from Backbone Model. In it you could override the save method. <a href="http://documentcloud.github.com/backbone/#Model-extend" rel="nofollow">Read Backbone docs on how to extend their model</a></p> <p>In your custom save method, you will call the save method of super, check the responseText, if it's success then you'll call the success callback. (please do read backbone docs on how to call a method of your parent model in Javascript)</p> <ul> <li>Override Backbone.Sync</li> </ul> <p>Backbone has a Sync module which basically by default makes all ajax requests, parses the response and then calls the success/error callbacks you specified when calling save on your model. It's pretty simple. <a href="http://backbonejs.org/#Sync" rel="nofollow">Take a look at this doc</a> . Again you could override this, do exactly what Backbone is doing by default but only call the success/error callbacks based on responseText you received.</p> <p>UPDATE: Sample Code (warning code not tested)</p> <pre><code>//Over ride Backbone async defaultSync = Backbone.Sync // Save the original Sync method. We'll be needing that. Backbone.Sync = function(method, model, options) { success = options.success error = options.error options.success = function(model, data, options) { if (/% all your custom checks are true */) { success (model, data, options); } else { error(model,data,options); } } return defaultSync(method, model, options); } </code></pre> <p>Please make sure with this strategy the Sync method will be overriden for ALL your Backbone sync. If you don't want that then use Model#save override.</p> <p>Take a look at <a href="https://github.com/neebz/backbone-parse/blob/master/backbone-parse.js" rel="nofollow">this code</a> where I am overriding Backbone.Sync to make it work with Parse.com API.</p>
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    1. POEdit Backbone Ajax Success Method to Add in Custom Error Handling
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    1. COThanks for the advice. I'd prefer to take the Backbone.sync approach but I can't seem to figure it out. In fact, once I run the code below in my app.js file my ajax calls actually stop from executing. Can you be a little bit more verbose in your explanation on how to accomplish this as I really just don't seem to understand it. I know that backbone.sync sets the stage for each ajax call, but I have no clue how to edit the success method and pass in the data. Backbone.sync = function(method, model, options){console.log(options.success);};
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      1. USJason Biondo
    2. COadded some code, see if that gives you an idea.
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      1. USneebz
    3. COI made some edits in the code but it still doesn't work. Can you check out my comments and code above?
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