Redirecting to and from the login page from within the controller

k.joseph · June 22, 2015, 8:24pm

The chartsearch module is almost making all it’s calls to the server using ajax and one issue i noticed is that the more idle it takes after the user has loaded the page, he/she is automatically signed out out openmrs, I therefore need a way of redirecting to the login page just in-case the user is logged, and back to the previous page after a successful login. I have tried to look around and so no controller where such a thing is done in the same way.

Here is for-example one of my controller method that i call into using ajax

public String getResultsFromTheServer(FragmentModel model, @RequestParam(value = "phrase", required = false) SearchPhrase search_phrase,
                                      @RequestParam("patientId") Patient patient,
                                      @RequestParam(value = "categories[]", required = false) String[] categories) {
	SearchAPI searchAPIInstance = SearchAPI.getInstance();
	searchAPIInstance.clearResults();
	
	ChartsearchPageController.searchAndReturnResults(search_phrase, patient, categories, searchAPIInstance, false);
	return GeneratingJson.generateJson(false);
}

k.joseph · June 22, 2015, 8:28pm

Basically i would need something like;

if(Context.getAuthenticatedUser() == null) {
		//redirect to login page here
	}

dkayiwa · June 23, 2015, 12:52pm

The vitals app is an example of a form that will popup a login dialog box if you try submitting after the session has expired. The code responsible for this is at:

github.com

openmrs/openmrs-module-htmlformentryui/blob/master/omod/src/main/webapp/resources/scripts/htmlForm.js

//Uses the namespace pattern from http://stackoverflow.com/a/5947280
// expects to extend htmlForm defined in the core HFE module
(function( htmlForm, jq, undefined) {

    // individual forms can define their own functions to execute before a form validation or submission by adding them to these lists
    // if any function returns false, no further functions are called and the validation or submission is cancelled
    var beforeValidation = new Array();     // a list of functions that will be executed before the validation of a form
    var beforeSubmit = new Array(); 		// a list of functions that will be executed before the submission of a form
    var propertyAccessorInfo = new Array();

    var whenObsHasValueThenDisplaySection = { };

    var tryingToSubmit = false;

    var returnUrl = '';

    var successFunction = function(result) {
        if (result.goToUrl) {
            emr.navigateTo({ applicationUrl: result.goToUrl });
        } else {

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In the above, you could look at:

htmlForm.submitHtmlForm = function(),
htmlForm.loginThenSubmitHtmlForm = function(), var
checkIfLoggedInAndErrorsCallback = function(isLoggedIn)

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