I was wondering what the proper solution should be and didn't find any :\
You can always add id attribute your self - this should work
<s:hidden id="'hidden-'+%{#user.id}" name="userIds" value="%{#user.id}" />
<s:select id="'groups'++%{#user.id}" list="groupList" name="groupIds"
value="%{groupValues[#user.id]}" />
but it means we shouldn't autogenerate IDs which can break few things :/
2014-09-21 14:15 GMT+02:00 Heikki Hyyrö <heikki.hy...@uta.fi>:
> Lukasz Lenart <lukaszlen...@apache.org> kirjoitti 21.9.2014 kello 11.48:
>> Can you prepare some exact example app?
>
>
> Would the example snippet at the bottom be enough? It shows a slightly
> cleaned version of one form we use. The form basically consists of a table
> that lists the users of the system. Each user can be assigned to a user
> group. This form sends two arrays to the action updateGroups: one is
> ”userIds”, which contains the user ids, and the other one is ”groupIds”,
> which contains the group ids (which may be changed via the select-list in the
> last column).
>
> Struts generates identical id for each input field that gives values to these
> two lists. For example if there are 500 users, the html-code output by Struts
> will contain 500 snippets that look like:
>
> <input type="hidden" name="userIds" value="4267"
> id="updateUserGroups_userIds"/><select name="groupIds"
> id="updateUserGroups_groupIds">
>
> Each of these snippets will differ only in what is the value of the first
> hidden field. WWW validator will then output hundreds of errors of form
> "Duplicate ID updateUserGroups_groupIds” and "Duplicate ID
> updateUserGroups_userIds”.
>
> In this particular case the problem might(?) go away if the form used
> explicit index notation with the array names ”userIds" and "groupIds", but as
> far as I know (e.g. based on the book Struts 2 in Action), the practice of
> populating arrays without explicit indexing is quite normal.
>
> -Heikki
>
>
> <s:form action="updateGroups">
> <table class="tablesorter" id=”userTable">
> <thead>
> <tr>
> <th>Name</th>
> <th>Login</th>
> <th>Email</th>
> <th>Group</th>
> </tr>
> </thead>
> <tbody>
> <s:iterator var=”user" value=”users">
> <tr>
> <td>
> <s:url action="viewUser" var="viewUserUrl">
> <s:param name="userId" value="%{#user.id}" />
> </s:url>
> <s:a href="%{viewUserUrl}">
> ${user.lastName}, ${user.firstName}
> </s:a>
> </td>
> <td>${user.login}</td>
> <td><a href="mailto:${user.email}";>${user.email}</a></td>
> <td>
> <s:hidden name="userIds" value="%{#user.id}" />
> <s:select list="groupList" name="groupIds"
> value="%{groupValues[#user.id]}" />
> </td>
> </tr>
> </s:iterator>
> </tbody>
> </table>
> <p>
> <input type="submit" value=”Save changes" />
> </p>
> </s:form>
>
>
>
>
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