Enable use of relative paths in kauri-layout

[sdm]

It would be useful if we could specify relative paths in the kauri-layout attribute of a collection-control instead of an absolute path.

For example, if you need to reuse a collection-control, you should be able to specify a relative path for kauri-layout:

<tr>
        <td>Maandag</td>
        <td kauri-idref="week1/monday">
                <t:include src="scheduleCollControl.xml" />
        </td>
       <td kauri-idref="week2/monday">
                 <t:include src="scheduleCollControl.xml" />
       </td>
</tr> 

scheduleCollControl.xml contains:

<table kauri-idref="schedule" kauri-type="collection">
  <tbody kauri-role="container">
    <tr kauri-layout="schedule/#">
      <td kauri-idref="id" kauri-type="integer">
        <select class="input" kauri-role="input" />
      </td>
      <td kauri-idref="start" kauri-type="time">
        <input class="input" kauri-role="input" />
      </td>
    </tr>
  </tbody>
</table> 

By using the relative path "schedule/#", the following kauri-layouts will be assumed:

/week1/monday/schedule/#

/week2/monday/schedule/#

[mpo]

To be clear: this means we would expect the 'relativity' to work versus the current kauri_index value (which is in turn the absolute variant of the kauri_idref)

or to be overly clear: we shouldn't build a separate kauri_layout_index

(at least that's the feeling I'm getting from reading this suggestion)

[freya]

But now, the kauri-layout elements are grouped per child of a collection (e.g. /weeks/#). By making the kauri-layout relative to the current kauri_index, they won't be grouped in case of nested collections. So the suggestion you made, won't work in case the weekdays would also be a collection.
Needs some investigation or rethinking.

[freya]

using relative paths is possible since r1541 for kauri-layout and kauri-cursor

Example:

        <table kauri-idref="countries" kauri-type="collection" >
          <tbody kauri-role="container" >

            <tr kauri-layout="#">
            
              <td >
                <input kauri-idref="name" kauri-type="string" kauri-role="control"/>
              </td>
              <td>
            </tr>
            
          </tbody>

        </table>

[sdm]

This seems to work for me now. Thanks for the fix!