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POReuse Deferred more than once
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  1. POReuse Deferred more than once
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    copied!<p>I'm using deferred as I need to execute several processes asynchronously.</p> <p>To be clearer, here is the signification of my treatments :</p> <ul> <li>Treatment1 : call of an ajax service providing user rights</li> <li>Treatment2 : call of an ajax service providing links and labels.</li> </ul> <p>I need to call these 2 services at the same time and then get the unified response of both services in order to display links depending on rights (my real problem is with a 3rd ajax service but let's talk about with only 2 to simplify).</p> <p>First, I declare the deferred as global var :</p> <pre><code>var treatment1 = $.Deferred(); var treatment2 = $.Deferred(); </code></pre> <p>Then, when I need to do the job, I call the resolve method with needed data for using it in the global unique treatment:</p> <ul> <li>when my 1st ajax service responds : <code>treatment1.resolve(responseData1)</code></li> <li>when my 2nd ajax service responds : <code>treatment2.resolve(responseData2)</code></li> </ul> <p>When the treatment1 &amp; 2 are finished, the done event is fired :</p> <pre><code>$.when(treatment1, treatment2).done(function(responseData1,responseData2) { DoGlobalTreatmentWithAllResponseData(responseData1,responseData2) } </code></pre> <p>My problem is that deferred works only once. </p> <p>As my website is realized in ajax mainly, I need to fire the event multiple times.</p> <p>The user can click a button to search for users. Then a list of users is displayed and the ajax services are all called asynchronously. This operation can be repeated infinitely.</p> <p>I just need a way to reuse the principle of deferred but multiple times. I know that this problem has already been discussed and everyone says deferred can't work this way.</p> <p>But, is it really not possible to reset the deferred state or reset the promises (even by implementing a custom solution, using AOP or something else)?</p> <p>If it's impossible, what solution could I use? I don't want to fire treatments one after another but I really want to do a global treatment after all the treatments are finished (that is to say, after the last treatment in activity is finished) and I want to use the <code>responseData</code> of each services.</p> <p>Here is my sample code that I would like to customize : <a href="http://jsfiddle.net/PLce6/14/" rel="nofollow">http://jsfiddle.net/PLce6/14/</a></p> <p>I hope to be clear as English is not my native language.</p> <p>Thank you in advance for your help.</p>
 

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