View source for Developing an MVC Component/Adding a batch process

=== Handling the HTTP POST in the Controller ===

[[File:joomla-batch.jpg|right|Joomla Batch Processing]] 

<translate><!--T:15--> When the Process button is pressed the javascript code will submit the form and so initiate an HTTP POST request to the server with parameters which include</translate>
<translate><!--T:16-->
* the ids of the records which have been selected for batch processing
* the batch options which have been chosen
* the task variable set to <tt>task=helloworld.batch</tt></translate>

<translate><!--T:17--> Joomla will route this to a <tt>batch()</tt> method in admin/controllers/helloworld.php.</translate> 

<translate><!--T:18--> In our helloworld controller <tt>batch()</tt> method we do the following:</translate>
<translate><!--T:19-->
* set up the model to be the helloworld model
* set up the redirect to present the helloworlds view again, once the batch processing is complete
* call the parent batch method, passing the model as parameter</translate>
<translate><!--T:20--> The parent batch method (in JControllerForm) will obtain the POST params, perform some verification of them, and then call the <tt>batch()</tt> method within the passed model, passing the POST parameters.</translate> 

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