Page size is 10, Total records = 17.code that is being called:

this.setCtlr.next();
//populateData iterates using getRecords()
populateData();

Debug Log is below:

18:51:36.359|USER_DEBUG|[4]|DEBUG|>>>>>>>>>>>>>>>> MyMarketController>>>>>>>>>>>setCtlr.TotalSize=17
18:51:36.359|METHOD_EXIT|[4]|System.debug(ANY)
18:51:36.359|METHOD_EXIT|[202]|ALMLogUtils.log(String, String)
18:51:36.359|METHOD_ENTRY|[203]|01pQ00000004ZfQ|ALMLogUtils.log(String, String)
18:51:36.359|METHOD_ENTRY|[203]|ApexPages.StandardSetController.getHasNext()
18:51:36.359|METHOD_EXIT|[203]|ApexPages.StandardSetController.getHasNext()
18:51:36.359|METHOD_ENTRY|[4]|System.debug(ANY)
18:51:36.359|USER_DEBUG|[4]|DEBUG|>>>>>>>>>>>>>>>> MyMarketController>>>>>>>>>>>setCtlr.HasNext=true
18:51:36.359|METHOD_EXIT|[4]|System.debug(ANY)
18:51:36.359|METHOD_EXIT|[203]|ALMLogUtils.log(String, String)
18:51:36.359|METHOD_ENTRY|[204]|ApexPages.StandardSetController.next()
18:51:36.359|EXCEPTION_THROWN|[EXTERNAL]|System.VisualforceException: Modified rows exist in the records collection!
18:51:36.360|METHOD_EXIT|[204]|ApexPages.StandardSetController.next()
18:51:36.360|CODE_UNIT_FINISHED|MyMarketController invoke(next)

It seems like this isn't working.  Back in April we had a thread going regarding exposing WebService classes via Sites to allow for public, non-authenticated webservices.

http://boards.developerforce.com/t5/Apex-Code-Development/SOAP-request-to-APEX-webservice-without-requiring-authentication/m-p/182108#M29174

In implementing this in one of our sandboxes, we keep getting the a soap fault message

sample request

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:sel="http://soap.sforce.com/schemas/class/SelfServiceAPI">
   <soapenv:Body>
      <sel:insertTicket>
         <sel:email>test@test.com</sel:email>
         <sel:name>test user</sel:name>
         <sel:product>widgets</sel:product>
         <sel:subject>testing api ticket submit</sel:subject>
         <sel:description>testticketdescription</sel:description>
      </sel:insertTicket>
   </soapenv:Body>
</soapenv:Envelope>

and the response:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:sf="http://soap.sforce.com/2006/08/apex">
   <soapenv:Body>
      <soapenv:Fault>
         <faultcode>sf:INVALID_SESSION_ID</faultcode>
         <faultstring>INVALID_SESSION_ID: Invalid Session ID found in SessionHeader: Illegal Session</faultstring>
      </soapenv:Fault>
   </soapenv:Body>
</soapenv:Envelope>

So here's the question (hopefully Bulent is reading :) ), can we get a working example (XML request and response) for using an Apex Web Service via Sites?  It would seem that the login() API call is a requirement no matter where the API call is targeted at, since that's the only way to get a session, so...how do you execute a login for a Sites guest user?

I've written a custom controller that exploits the StandardSetController class to return a page of records and allow pagination.

VF controller has three (relevant) methods:

getPage()  - returns List of records in current pageset (pagesize = 10)

previousPage() - executes the previous() method on the standard set controlller object

nextPage() - executes the next() method on the standard set controller object

The StandardSetController is constructed using a Database.getQueryLocator per the doc

setCtlr = new ApexPages.StandardSetController(

Database.getQueryLocator(

[Select id, name, Account__r.name from Foo__c where id in :fooIdSet]));

When I set up my APEX test method:

1.  Insert 11 rows into database  //works ok

2.  Assert that getPage() returns 10 rows  // assertion passes

3.  Execute nextPage() on the controller

4.  Assert that getPage() returns 1 row (the 11th)

Here's the problem: step #3 fails because VF comes back with:

System.VisualforceException: Modified rows exist in the records collection!

I checked the creation datetime and lastmodify datetime just prior to executing Step3 and all is OK, the records haven't mysteriously been changed underneath.

I get the same error (in a non-Sites test whilst logged in as admin and simply executing the VF page in the browser.

What would cause this error?