There is a way to pass parameters from a custom submission handler off to the Thankyou Page. They appear in the sling request object when the thankyou page is invoked from the custom submission handler. However, I had some issues with this method a while ago where only some parameters would exist even though I explicitly put them in the sling request object during the custom submission handler. They would get stripped out and we didnt have the Adobe source to fix the bug.
I came up with a different method which is a bit hacky - I passed the errors back to the thankyou page via the formData XML object that is passed back from the LC process into the submission handler after the call. I then looked for the saved formData in the thankyou page, and parsed that to grab the information (ID, errors, etc) that I wanted to show to the user.
It went something like this:
- I created a custom submission handler. The first half is from "lcprocess" guidesubmitype and the second half is from the Forms Portal guidesubmittype. There should be examples in the /libs/af area of the JCR
- I made a call to the lcprocess and grabbed the return object called the thankyou page using a GuideSubmitServlet.setForwardPath call instead of a GuideSubmitServlet.setRedirectParameters call (not much documentation on these). Note that this will submit data to forms portal (which is what i wanted) so I could extract the data in the thankyou page.
- The LC process injects any data it likes into the formData XML object (errors, success messages, etc)
- Then in the thankyou page, I parsed the formData XML object and extracted the data I wanted from that and displayed it to the user.
This example if from AEM Forms 6.1, so there may be a better way to do this now.
Example lcprocess guidesubmittype JSP
String processName = properties.get("processName", "");
GuideLCServiceConnector guideLCServiceConnector = sling.getService(GuideLCServiceConnector.class);
if (guideLCServiceConnector == null) {
log.error("There is no Forms and Document Workflow associated with this Adaptive Form.");
throw new GuideException("There is no Forms and Document Workflow associated with this Adaptive Form.");
}
if (processName != null && processName.length() > 0) {
String dataXmlParamterName = guideLCServiceConnector.getXmlParameterName();
String fileListParameterName = guideLCServiceConnector.getFileListParameterName();
Map <String,Object> inputParams = new HashMap <String,Object> ();
Document dataXml = null;
if (slingRequest.getParameter("jcr:data") != null) {
dataXml = new Document(slingRequest.getRequestParameter("jcr:data").get());
}
inputParams.put(dataXmlParamterName, dataXml);
List < Document > fileAttachments = new ArrayList < Document > ();
RequestParameterMap requestParameterMap = slingRequest.getRequestParameterMap();
for (Map.Entry < String, RequestParameter[] > param: requestParameterMap.entrySet()) {
RequestParameter rpm = param.getValue()[0];
if (!rpm.isFormField()) {
fileAttachments.add(new Document(rpm.get()));
}
}
inputParams.put(fileListParameterName, fileAttachments);
//Get the runmodes for some stuff
String runModes = sling.getService(SlingSettingsService.class).getRunModes().toString();
inputParams.put("runModes", runModes);
Map outputParams = guideLCServiceConnector.invokeProcess(processName, inputParams);
if (outputParams != null) {
Map < String,
String > redirectParameters = GuideSubmitServlet.getRedirectParameters(slingRequest);
if (redirectParameters == null) {
redirectParameters = new HashMap < String,
String > ();
}
String newDataXml = null;
Iterator entries = outputParams.entrySet().iterator();
while (entries.hasNext()) {
Map.Entry current = (Map.Entry)entries.next();
Object value = current.getValue();
//This always fails - there are no return types in LC that this passes with
//if(value.getClass().isPrimitive())
//LC Process should return a new version of 'formData' (Serialized XML) property
slingRequest.setAttribute((String)current.getKey(), String.valueOf(value));
//log.info("Got "+(String)current.getKey() + " value: " + String.valueOf(value));
}
//GuideSubmitServlet.setRedirectParameters(slingRequest,redirectParameters);
//Taken from Forms Portal Submit Action
String guidePath = resource.getPath();
String path = guidePath + ".json";
String draftID = request.getParameter("draftID");
String profile = request.getParameter("profile");
if (draftID != null)
slingRequest.setAttribute("draftID", draftID);
slingRequest.setAttribute("func", "saveSubmittedGuide");
slingRequest.setAttribute("profile", profile);
slingRequest.setAttribute("formPath", guidePath);
slingRequest.setAttribute("formType", "af");
slingRequest.setAttribute("fpAllowedMetadata", "profile, formPath, formType");
GuideSubmitServlet.setForwardPath(slingRequest, path, "fp.draft", null);
}
} else {
log.error("There is no Forms and Document Workflow associated with this Adaptive Form.");
throw new GuideException("There is no Forms and Document Workflow associated with this Adaptive Form.");
}
This is an excerpt from the thankyoupage component (I wanted to display the value of auditNumber that was generated in the LC process)
String adaptiveFormPath = slingRequest.getParameter("path");
if(adaptiveFormPath != null) {
adaptiveFormPath = adaptiveFormPath.replace(".html", "");
}
log.info(adaptiveFormPath);
Resource res= resourceResolver.getResource(adaptiveFormPath);
if(res != null) {
Node node = res.adaptTo(Node.class);
String dataXMLPath = node.getProperty("userdataID").getValue().getString();
res = resourceResolver.getResource(dataXMLPath);
node = res.adaptTo(Node.class);
String dataXML = node.getProperty("jcr:data").getValue().getString();
javax.xml.parsers.DocumentBuilderFactory dbf = javax.xml.parsers.DocumentBuilderFactory.newInstance();
javax.xml.parsers.DocumentBuilder db = dbf.newDocumentBuilder();
org.w3c.dom.Document dataDoc = db.parse(new ByteArrayInputStream(dataXML.getBytes("UTF-8")));
dataDoc.getDocumentElement().normalize();
log.info("Root element: " + dataDoc.getDocumentElement().getNodeName());
auditNumber = dataDoc.getElementsByTagName("AuditNumber").item(0).getTextContent();
}
<% <p>Please note down your Audit Number for future reference: <strong><%=auditNumber%></strong></p> %>
