Null Date in a Contrib:Table

[Manuel Thurn]

Hi!

 

For a project I want to display a list of objects in an html table. I'm
using the Table component of the contrib library of Tapestry. One column
should show a formatted Date (or Calendar) object. It works fine as long as
the Date is not null. But if the database contains objects with null values
I get the following Exception:

 

Unable to read OGNL expression.:  source is null for getProperty(null,
"tableRow")

 

Here is a snippet of the .page file. creationDate is a Calendar object. To
format it I get the Date with getTime() and use the format parameter of the
Insert component.

 

<component id="campaignTable" type="Contrib:Table">

<binding name="source" value="dataItems"/>

<binding name="columns" value="literal:name, description, creationDate"/>

</component>

 

<component id="creationDateFormat" type="Insert">

<binding name="value" value="components.table.tableRow.creationDate.time"/>

<binding name="format" value="dateFormat"/>

</component>

 

I would be happy if you could help me find a way to handle this exception.

 

Thanks,

 

Manuel