How to modify waveset.roles

Question

Hi
I'm trying to modify waveset.roles by removing the role that already exists, and replacing it with the name of another role.
I checkout a User view, and then modify it like this:
<removeAll>
<ref>userView.waveset.roles</ref>
<s>old_role_name</s>
</removeAll>
<append>
<ref>userView.waveset.roles</ref>
<s>new_role_name</s>
</append>
I have tried variations on the syntax, such as using <get><ref>userView.waveset</ref><s>roles</s> too, but after I check the view back in, my change hasn't been applied.
Can anyone tell me what I am doing wrong? Is waveset.roles readonly? Should I be using a different type of view (rather than User)?
Many thanks
Richard

Answer 1

Hi sec_tk, thanks for the reply, I did what you said and it works a treat now. Really appreciate your help.
In case it helps anyone else, here is the relevant part of my workflow:
<!-- check out the user (don't use Empty Form because otherwise the global attributes dont seem to be available) -->
                <Action application='com.waveset.session.WorkflowServices'>
                    <Argument name='op' value='checkoutView'/>
                    <Argument name='type' value='User'/>
                    <Argument name='id' value='$(userName)'/>
                    <Argument name='authorized' value='true'/>
                    <Variable name='view'/>
                    <Return from='view' to='checkedOutView'/>                   
                </Action>
               <Action name="ModifyContractorRoleIfNecessary">
                    <block>
                        <cond>
                            <isTrue><ref>roleNeedsModifying</ref></isTrue>
                            <block>
                                <append name='checkedOutView.waveset.roles'>
                                    <s>new_role_name</s>
                                </append>
                                <remove name='checkedOutView.waveset.roles'>
                                    <s>old_role_name</s>
                                </remove>
                                <!-- Update an unrelated global property (just something else that needs doing) -->
                                <set name='checkedOutView.global.memberClass'>
                                    <String>new_role_name</String>
                                </set>                                                            
                            </block>
                        </cond>
                    </block>
                </Action>
                <!-- Checkin the user view -->
                <Action application='com.waveset.session.WorkflowServices'>
                  <Argument name='op' value='checkinView'/>
                  <Argument name='view' value='$(checkedOutView)'/>
                </Action>