Ajax call to WebFlow

Question

I am trying to make an Ajax call to my webflow and want to refresh only content part of my page for every view state.

 function proposedInsured(){

("#myForm").submit(function() { 
   $.ajax({
      type: "POST",
      data: $("#myForm").serialize(),
      url: $("#myForm").attr("action") + "&_eventId=nextpage&ajaxSource=print_message",
      success: function(response) {
         alert("success" + response);
         $('#content').html(response);
      },
      error: function(response) {
      alert("error" + response); 
      }  
  });
  return false;
});
}

flow.xml

<view-state id="firstPage" view="firstPage" >
   <transition on="nextpage" to="proposedInsured"/> 
</view-state> 
<view-state id="proposedInsured" model="policyBean" view="proposedInsured">
   <binder>
     <binding property="name" />
   </binder>  
   <on-entry>
     <evaluate expression="pocContent.getContent('proposedInsured',productId)" result="flowScope.content"/>
          <render fragments="content"/>
   </on-entry>
   <transition on="nextpage" to="address" />
 </view-state>
 <subflow-state id="address" subflow="address">
    <transition on="saveAddress" to="nextpage">
    <evaluate expression="policyBean.setAddressDetail(currentEvent.attributes.addressDetail)"/>         
    </transition>
</subflow-state>`

On click event of NextPage submit button on firstpage, am firing my ajax script which makes call to my webFlow.

firstPage (Using Thymeleaf2.0.12 for view part)

 <!DOCTYPE html>
 <html xmlns:th="http://www.thymeleaf.org" xmlns:tiles="http://www.thymeleaf.org">
 <body>
  <div id="content" tiles:fragment="content">
   <form id="myForm" method="post" th:action="${flowExecutionUrl}">
     <input id="print_message" type="button" value="NextPage" name="_eventId_nextPage" onclick="proposedInsured();"/>
   </form>
  </div>
 </body>
</html>

proposedInsured.html

 <html xmlns:th="http://www.thymeleaf.org" xmlns:tiles="http://www.thymeleaf.org">
  <body>
   <div id="content" tiles:fragment="content">
    <form id="myForm" name="myForm" method="POST">
      ...
    </form>
   </div>
  </body>
  </html>

template.html

<div id="page-container">
<div id="header" th:fragment="header">
...
</div>
<div id="content" th:fragment="content">
    ....
</div>
</div>

Issue: Getting whole page(header and content) both in response to my Ajax call. As per my understanding
<render fragment="content"> should extract the content fragment from whole page and pass it to client. Not really getting what it is meant for. How am I supposed to handle this?

Second thing I observed is it makes 2 calls to flow, one is Post which gets failed and the other one is Get which returns me the response. Can anyone please explain why is this happening?

score 1 · Accepted Answer · edited Jul 28 '18 at 20:20

1

try adding &fragment=content to the URL in your ajax call. might solve your first issue.

also could you post the code for your "address" flow?

[EDIT] try using Spring.remoting.submitForm for you ajax:

<input type="submit" value="NextPage" name="_eventId_nextPage" id="submitMyForm" onclick="Spring.remoting.submitForm('submitMyForm', 'myForm', {fragments:'content'}); return false;"/>

or AjaxEventDecoration:

<script type="text/javascript">
    Spring.addDecoration(new Spring.AjaxEventDecoration({
        elementId: "submitMyForm",
        event: "onclick",
        formId: "myForm",
        params: {fragments: "content"}
    }));
</script>

and see if that works

edited Jul 28 '18 at 20:20

Mahozad

18,032
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answered Oct 24 '12 at 16:16

rptmat57

3,643
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38

1

Added `&fragment=Content` but no luck. Also, tried passing parameter `&ajaxSource=true` as mentioned in [http://stackoverflow.com/questions/10603177/ajax-spring-webflow], Always getting the complete page as response. – ShinkyNar Oct 25 '12 at 16:22
Code for my address flow: ` ` – ShinkyNar Oct 25 '12 at 16:24
and I suppose you have a ` ` in your parent flow "address", right? – rptmat57 Oct 25 '12 at 16:35
and it's `&fragment=content` with a lowercase `c`. could you post the code for your parent flow "address" too? – rptmat57 Oct 25 '12 at 16:37
On click event of NextPage submit button on `firstpage`, am firing my ajax script which makes call to my `proposedInsured` which should be rendered partially. Haven't reached address flow yet. Yes, it's `&fragment=content` with lowercase `c`. – ShinkyNar Oct 25 '12 at 16:46
try to use the code in my edited post and tell me if it renders the fragment – rptmat57 Oct 25 '12 at 17:04
Nope..not working :(. Neither `popup=true` nor `render` tag within `transition`. – ShinkyNar Oct 25 '12 at 17:40
I think I am missing something really very important. – ShinkyNar Oct 25 '12 at 17:41
have you tried using `Spring.AjaxEventDecoration` or `Spring.submitForm` for you ajax call? – rptmat57 Oct 25 '12 at 17:57
Nope, have no idea how to use it...will find it out and check if this helps. – ShinkyNar Oct 25 '12 at 18:01
you can use it like this: `` – rptmat57 Oct 25 '12 at 18:06

ShinkyNar · Answer 2 · 2018-12-31T11:03:04.760

Used Thymeleaf with Tiles to get it working. It doesn't work with normal th:fragment.

To make the ajax call we can either use the jquery script(ajaxcall.js) defined in question or spring JS this way:

   Spring.addDecoration(new Spring.AjaxEventDecoration({
    elementId: "print_message",
    event: "onclick",
    formId:"myForm",
    }));

tiles-def.xml

<tiles-definitions>
<definition name="base.definition"
    template="template">
    <put-attribute name="header" value="header :: header" />
    <put-attribute name="content" value="" />
    <put-attribute name="footer" value="footer :: footer" />
</definition> 

<definition name="firstPage" extends="base.definition">
    <put-attribute name="content" value="firstPage :: content" />
</definition>

<definition name="proposedInsured" extends="base.definition">
    <put-attribute name="content" value="proposedInsured :: content" />
</definition>

</tiles-definitions>

template.html (using tiles)

<html xmlns:th="http://www.thymeleaf.org" xmlns:tiles="http://www.thymeleaf.org">
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></meta>
 <title>Insert title here</title>
 <script type="text/javascript" th:src="@{/resources/dojo/dojo.js}"></script>
 <script type="text/javascript" th:src="@{/resources/spring/Spring.js}"></script>
 <script type="text/javascript" th:src="@{/resources/spring/Spring-Dojo.js}"> </script>
 <script type="text/javascript" th:src="@{/scripts/jquery-1.8.2.js}"></script>
 <script type="text/javascript" th:src="@{/scripts/ajaxcall.js}"></script> 
 <!-- <script type="text/javascript">
  Spring.addDecoration(new Spring.AjaxEventDecoration({
  elementId: "print_message",
  event: "onclick",
  formId:"myForm",
  }));
  </script>-->
 </head>
 <body>
 <table border="1">
  <tr>
     <td height="30" colspan="2">
       <div tiles:substituteby="header"></div>
     </td>
  </tr>
  <tr>
     <td width="350">
       <div tiles:substituteby="content"></div>
     </td>
  </tr>
  <tr>
     <td height="30" colspan="2">       
      <div tiles:substituteby="footer"></div>
     </td>
   </tr>
   </table>
   </body>
   </html>

Ajax call to WebFlow

2 Answers2