[Zope-CMF] 'portal_metadata' tool in CVS

[marc lindahl]

> From: Tres Seaver <tseaver@novacoxmail.com>
> 
> I've patched it to accomplish a couple of goals:


OK, I applied the patches to full_metadata_edit_form.dtml, expanding to
include all the dublincore types that support vocabulary limitation.  I also
put checks in there so that if the portal_metadata tool isn't installed, or
the vocabulary is empty, that the old text inputs are there instead of the
(empty or nonexistent) list.  I also put an empty pick on lists where
appropriate, so you can 'reset' that choice to nothing.  I don't think it
could be done in the vocabulary list in the portal_metadata tool.

I note in one section, in the comments, that there is more that could be
done to expose the porta_metadata interface to the user, but it seems like
the methods needed are protected.  Specifically:

       portal.metadata.getElementSpec( 'Language' ).isRequired()
       portal.metadata.getElementSpec( 'Language' ).supplyDefault()
       portal.metadata.getElementSpec( 'Language' ).defaultValue()

If those were public, the form could use them.

Though, come to think of it, defaultValue and supplyDefault probably only
need to be done when a dublinCore object is created...

You can see that the code is so regular, it could probably be made into a
macro or a method.


Here is full_metadata_edit_form.dtml with changes:

<dtml-var standard_html_header>

<div class="Desktop">

<dtml-if message>
 <p>&dtml-message;</p>
 <hr>
</dtml-if>


<div class="Metadata">

<h2>Resource Metadata </h2>

<dtml-let effectiveString="effective_date and effective_date.ISO() or
'None'"
          expirationString="expiration_date and expiration_date.ISO() or
'None'"
>

<form action="metadata_edit" method="post">
<table class="FormLayout">
 <tr valign="top">
  <th align="right"> Identifier
  </th>
  <td colspan="3"> <dtml-var Identifier>
  </td>
 </tr>
 <tr valign="top">
  <th align="right"> Title
  </th>
  <td colspan="3">
   <input type="text"
          name="title"
          value="&dtml-Title;"
          size="65">
  </td>
 </tr>
 <tr valign="top">
  <th align="right"> Description
  </th>
  <td colspan="3">
   <textarea name="description:text" rows="5"
             cols="65">&dtml-Description;</textarea>
  </td>
 </tr>
 <tr valign="top">
  <th align="right"> Subject
  </th>
  <dtml-comment> Support portal_metadata limiting of subjects
  </dtml-comment>
  <td>
  <dtml-if "portal_metadata and
            portal_metadata.listAllowedSubjects( this() )">
    <dtml-let allowed="portal_metadata.listAllowedSubjects( this() )"
              raw_size="_.len( allowed )"
              min_size="raw_size < 5 and 5 or raw_size+1"
              max_size="min_size > 10 and 10 or min_size"
              size=max_size
              subject=Subject
     >
      <select name="subject:list" multiple size="&dtml-size;">
        <dtml-in allowed>
          <dtml-let item=sequence-item
                    sel="subject and item in subject and 'selected' or ''"
          >
            <option value=&dtml-sequence-item; &dtml-sel;>
                &dtml-item;
            </option>
          </dtml-let>
    </dtml-in>
    <option value=""></option>
      </select>
    </dtml-let>
  <dtml-else>
       <textarea name="subject:lines" rows="5"
                 cols="30"><dtml-in Subject><dtml-var sequence-item>
       </dtml-in></textarea>
  </dtml-if portal_metadata>
  </td>
  <th align="right"> Contributors
  </th>
  <td>
   <textarea name="contributors:lines" rows="5"
             cols="30"><dtml-in Contributors><dtml-var sequence-item>
</dtml-in></textarea>
  </td>
 </tr>
 <tr valign="top">
  <th align="right"> Creation Date
  </th>
  <td> <dtml-var CreationDate>
  </td>
  <th align="right"> Last Modified Date
  </th>
  <td> <dtml-var ModificationDate>
  </td>
 </tr>
 <tr valign="top">
  <th align="right"> Effective Date
  </th>
  <td> <input type="text" name="effective_date"
                          value="&dtml-effectiveString;">
  </td>
  <th align="right"> Expiration Date
  </th>
  <td> <input type="text" name="expiration_date"
                          value="&dtml-expirationString;">
  </td>
 </tr>
 <tr valign="top">
  <th align="right"> Format
  </th>
  <dtml-comment> Support portal_metadata limiting of Format
  </dtml-comment>
  <td>
  <dtml-if "portal_metadata and
            portal_metadata.listAllowedFormats( this() )">
    <dtml-let allowed="portal_metadata.listAllowedFormats( this() )"
              raw_size="_.len( allowed )"
              min_size="raw_size < 1 and 1 or raw_size+1"
              max_size="min_size > 10 and 10 or min_size"
              size=max_size
              thing=Format
     >
      <select name="format:list" size="&dtml-size;">
        <dtml-in allowed>
          <dtml-let item=sequence-item
                    sel="thing and item in thing and 'selected' or ''"
          >
            <option value=&dtml-sequence-item; &dtml-sel;>
                &dtml-item;
            </option>
          </dtml-let item>
    </dtml-in allowed>
    <option value=""></option>
      </select>
    </dtml-let allowed>
  <dtml-else>
       <input type="text" name="format" value="&dtml-Format;">
  </dtml-if portal_metadata>
  </td>
 </tr>
 <tr valign="top">
  <th align="right"> Language
  </th>
  <dtml-comment> Support portal_metadata limiting of Language
  </dtml-comment>
  <td>
  <dtml-if "portal_metadata and
            portal_metadata.listAllowedLanguages( this() )">
    <dtml-let allowed="portal_metadata.listAllowedLanguages( this() )"
              raw_size="_.len( allowed )"
              min_size="raw_size < 5 and 5 or raw_size+1"
              max_size="min_size > 10 and 10 or min_size"
              size=max_size
              thing=Subject
     >
      <select name="language:list" size="&dtml-size;">
        <dtml-in allowed>
          <dtml-let item=sequence-item
                    sel="thing and item in thing and 'selected' or ''"
          >
            <option value=&dtml-sequence-item; &dtml-sel;>
                &dtml-item;
            </option>
          </dtml-let item>
    </dtml-in allowed>
    <option value=""></option>
      </select>
    </dtml-let allowed>
    <dtml-comment> For this to work security has to be changed in
    MetadataTool.py
    <dtml-if "not portal.metadata.getElementSpec( 'Language'
    ).enforceVocabulary()">
       <input type="text" name="language" value="&dtml-Language;">
    </dtml-if>
    </dtml-comment>
    <dtml-comment> other stuff that could work with some security change:
       portal.metadata.getElementSpec( 'Language' ).isRequired()
       portal.metadata.getElementSpec( 'Language' ).supplyDefault()
       portal.metadata.getElementSpec( 'Language' ).defaultValue()
    </dtml-comment>
  <dtml-else>
       <input type="text" name="language" value="&dtml-Language;">
  </dtml-if portal_metadata>
  </td>
 </tr>
 <tr valign="top">
  <th align="right"> Rights
  </th>


  <dtml-comment> Support portal_metadata limiting of Rights
  </dtml-comment>
  <td>
  <dtml-if "portal_metadata and
            portal_metadata.listAllowedRights( this() )">
    <dtml-let allowed="portal_metadata.listAllowedRights( this() )"
              raw_size="_.len( allowed )"
              min_size="raw_size < 1 and 1 or raw_size+1"
              max_size="min_size > 10 and 10 or min_size"
              size=max_size
              thing=Rights
     >
      <select name="format:list" size="&dtml-size;">
        <dtml-in allowed>
          <dtml-let item=sequence-item
                    sel="thing and item in thing and 'selected' or ''"
          >
            <option value=&dtml-sequence-item; &dtml-sel;>
                &dtml-item;
            </option>
          </dtml-let item>
    </dtml-in allowed>
    <option value=""></option>
      </select>
    </dtml-let allowed>
  <dtml-else>
       <input type="text" name="rights" value="&dtml-Rights;">
  </dtml-if portal_metadata>
  </td>
 </tr>
 <tr valign="top">
  <td> <br> </td>
  <td>
   <input type="submit" value=" Change ">
  </td>
 </tr>
</table>
</form>

</dtml-let>

</div>

</div>

<dtml-var standard_html_footer>