topic Re: Displaying Constrainted Meta-data in the search results page in Alfresco Archive

Displaying Constrainted Meta-data in the search results page

astocks — Fri, 16 Feb 2007 16:40:04 GMT

Hi,I've been modifying the columns of my search results page. Works fine for most of my custom meta-data but not for any meta-data which has constraints on it (so they get chosen via a drop-down box).The error it gives is:javax.faces.FacesException: java.lang.Stringcaused byrg.apache.jasper.Jasper

Re: Displaying Constrainted Meta-data in the search results page

gavinc — Tue, 20 Feb 2007 07:51:51 GMT

When setting the value for a drop down box you need to pass a List of SelectItem objects, it may be that you are passing a String as the value for the drop down box.

Re: Displaying Constrainted Meta-data in the search results page

astocks — Tue, 20 Feb 2007 09:17:19 GMT

Thanks Gavin - I'll try that!

Re: Displaying Constrainted Meta-data in the search results page

astocks — Tue, 20 Feb 2007 12:55:05 GMT

Actually Gavin, I think you misunderstood me. I actually want to display only the actual chosen value, for example in the search results page.

It works for non constrainted meta-data, but not for any metadata with constraints.

Re: Displaying Constrainted Meta-data in the search results page

gavinc — Thu, 22 Feb 2007 09:59:03 GMT

Ahh OK, is the property defined as a multiple valued property?

If so, the object you get back from the repository is a List, which may also explain the ClassCastException.

Re: Displaying Constrainted Meta-data in the search results page

astocks — Tue, 06 Mar 2007 15:53:16 GMT

Thanks for the help Gavin, been a bit busy so haven't had much chance to work on this.

You say that the multiple valued property is returned as a list, so how are normal properties returned? And how does this affect how the declaration of a property in the results page is made?

Do I have to implement something like below in order for this to work?

<show-property name="mimetype" display-label-id="mimetype" converter="org.alfresco.faces.MimeTypeConverter" showInEditMode="false" />

Do you have any idea what would have to be changed to be able to display the value of a "drop-down" piece of metadata in the search results page? Any pointers would be appreciated.

Re: Displaying Constrainted Meta-data in the search results page

gavinc — Wed, 07 Mar 2007 11:30:00 GMT

Properties are returned using the appropriate type i.e. d:text will return a Java String object. If the property is marked as multi valued then a List of String objects is returned.

You will most likely need to create a converter to apply to the component you are using in the search results. It's difficult to tell without seeing what you've done, if you could post the changes you've made that may help i.e. the JSP and the custom model you are using.

Re: Displaying Constrainted Meta-data in the search results page

astocks — Wed, 07 Mar 2007 16:16:14 GMT

Thanks for the quick reply,

Here are my changes, hopefully it helps:

Custom Data Model:

   <constraints>
   <constraint name="dmervice_Line_List" type="LIST">
      <parameter name="allowedValues">
         <list>
            <value></value>
            <value>Strategy</value>
            <value>Operations</value>
            <value>Human Capital</value>
            <value>Enterprise Applications</value>
            <value>Technology Integration</value>
         </list>
      </parameter>
   </constraint>
</constraints>

…
and within the type definition:

<property name="dmervice_Line" >
        <type>d:text</type>
        <constraints>
                  <constraint ref="dmervice_Line_List"/>
        </constraints>
</property>

In the web-client-config-custom.xml:

<config evaluator="node-type" condition="content">
<property-sheet>
<show-property name="dmervice_Line" show-in-view-mode="true" display-label="Service Line"
ignore-if-missing="false"/>
</property-sheet>
</config>

Browse JSP:

<a:column id="col19" style="text-align:left" rendered="#{BrowseBean.browseViewMode == 'details' || BrowseBean.browseViewMode == 'icons'}}">
<f:facet name="header">
<a:sortLink id="col19-sort" label="Service Line" value="modified" styleClass="header"/>
</f:facet>
<hutputText id="col19-txt" value="#{r['dmervice_Line']}">
</hutputText>
</a:column>

I have made the same changes for parameters which do not have any constraints and they work. However for this (and other similar ones) I get a "String" type error.

Re: Displaying Constrainted Meta-data in the search results page

gavinc — Fri, 09 Mar 2007 11:11:32 GMT

I tried this out on my system and this has nothing whatsoever to do with the value inside the property, it's actually the value binding expression in the rendered property that is the problem.

rendered="#{BrowseBean.browseViewMode == 'details' || BrowseBean.browseViewMode == 'icons'}}"

has an extra } character at the end. This was therefore evaluting to "true}" or "false}" which would not convert to a Boolean object to check whether the column should be rendered or not.

Remove the extra } and it should work, it did for me!

Re: Displaying Constrainted Meta-data in the search results page

astocks — Fri, 09 Mar 2007 11:15:34 GMT

Gavin, thank you very much…

Haven't tried it yet but I copied an pasted that code so I guess it will work.

Sorry for wasting your time but I think I have been looking at it for so long I would never have spotted that!