[ZDP] BackTalk to Document The Zope Book (2.5 Edition)/Creating Basic Zope Applications

[webmaster@zope.org]

A comment to the paragraph below was recently added via http://www.zope.org/Documentation/Books/ZopeBook/current/SimpleExamples.stx#3-55

---------------

      Most Zope objects have a *bobobase_modification_time* method that
      returns the time the object was last modified. We can use this
      method in the file library's *index_html* method::

        <dtml-var standard_html_header>

        <h1>File Library</h1>

        <table>
          <tr>
            <th>File</th>
            <th>Last Modified</th>
           </tr>

        <dtml-in expr="objectValues('File')">
          <tr>
             <td><a href="&dtml-absolute_url;"><dtml-var title_or_id></a></td>
             <td><dtml-var bobobase_modification_time fmt="aCommon"></td>
          </tr>
        </dtml-in>

        </table>

        <dtml-var standard_html_footer>  

        % Anonymous User - Aug. 6, 2002 9:38 am:
         Is there such a thing as 'bobobase_creation_time' ?  How would I get the time an object was created?

         The doc says 'Most Zope objects' have bobobase_modification_time - which ones?

         Where are these bobobase_* properties documented?

        % pdreuw - Nov. 12, 2002 12:48 pm:
         a 'bobobase_creation_time' could be easily simulated by using
            <dtml-call "manage_addProperty('creation_time',DateTime(),'string')">
         when you create the object.

         You can work with this even in your DTML-IN tags for sorting
         eg. 

         <dtml-in expr=objectValues("Folder") sort="creation_time">
         ...
         </dtml-in>

         There is no problem, if your object doesn´t have this property.