[editcontroller] backout (sort of) removal of entity.complete() in validate_form
entity is passed to js callbacks when there's one. In that case, we want as much
information as we can.
The removal was there to avoid complete to fail when all constraints (required
relations / attributes) aren't satisfied. This fix only does the complete() after the
commit is done, any ValidationError should have been raised at this point.
<table class="attributeForm" style="width:100%;"
tal:attributes="id tab_id | nothing;
class tab_class | nothing;">
<tr tal:iter="widget lines">
<th class="labelCol" tal:content="structure python:widget.render_label(entity)">attrname</th>
<td tal:define="error python:widget.render_error(entity)" style="width:100%;"
tal:attributes="class python:error and 'error' or nothing">
<div tal:replace="structure error">error message if any</div>
<div tal:replace="structure python:widget.edit_render(entity)" >widget (input, textarea, etc.)</div>
<div tal:replace="structure python:widget.render_help(entity)">format help if any</div>
</td>
</tr>
</table>