I have the task run in my controller. I want it to return JSON data. As it stands, I am getting my JSON data wrapped inside the template HTML. How do I tell Joomla to just return JSON data from the controller? This is the function I have:
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public function run ( ) { JFactory::getDocument()->setMimeEncoding( 'application/json' ); JResponse::setHeader('Content-Disposition','attachment;filename="progress-report-results.json"'); JRequest::setVar('tmpl','component'); $data = array( 'foo' => 'bar' ); echo json_encode( $data );}And this returns:
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-gb" lang="en-gb" dir="ltr"></head><body class="contentpane"><div id="system-message-container"></div> {"foo":"bar"}</body></html>I would like to get:
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{"foo":"bar"}Advertisement
Answer
You don’t need to build a special JSON view (view.json.php; or controller progressreports.json.php) to achieve that. The only thing you have to do is to echo the JSON string and close the application.
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public function run( ){ JFactory::getDocument()->setMimeEncoding( 'application/json' ); JResponse::setHeader('Content-Disposition','attachment;filename="progress-report-results.json"'); $data = array( 'foo' => 'bar' ); echo json_encode( $data ); JFactory::getApplication()->close(); // or jexit();}You only need a separate view (or controller), if you want to provide the same function with both HTML and JSON output (chosen by the caller).