I recently found a solution due to some help on this mailing list.
Here's what we came up with. It displays a table of people, and the
extent of people details are not known until runtime (i.e. should we
display the first name, last name, email, etc)
In the page file:
<component id="table" type="Contrib:Table">
<binding name="source" value="users"/>
<binding name="columns" value="tableColumns"/>
<binding name="columnsClass" value="literal:title"/>
<binding name="pageSize" value="10"/>
</component>
In your class for that page have this method:
public String getTableColumns()
{
//For reference
//Column id:Column Title:ognl expression
//value="literal:id, firstName:First name:name.firstName,
// lastName:name.lastName, telNo"/>
return
"data0:ID:getUserDetails('USERGUID'),data1:Email:getUserDetails('EMAIL'),data2:First
Name:getUserDetails('FIRSTNAME'),data3:Last
Name:getUserDetails('LASTNAME')";
}
As you can see, the string that defines the columns, along this their
display names and "ID"s for the loop, can be generated at runtime. I
thought that was really nifty.
As for the links, lets say you wanted the links to be on the user's email.
Add this to the page file:
<component id="data1ColumnValue" type="Block"/>
<component id="emailLink" type="DirectLink">
<binding name="listener" value="listener:onShowDetails"/>
<binding name="parameters"
value="components.table.tableRow.getUserDetails('EMAIL')"/>
</component>
<component id="emailLinkDisplay" type="Insert">
<binding name="value"
value="components.table.tableRow.getUserDetails('EMAIL')"/>
</component>
Note that getUserDetails() is my own function that a User object
posesses. It just provides a way to look up details stored in a Map
object. I'm using the db column names as the keys for the data.
Now my html looks like this:
<table border="1" jwcid="table">
<tr><th>id</th><th>email</th></tr>
<tr><td>1</td>
<td jwcid="data1ColumnValue">
<a href="" jwcid="emailLink">
<span jwcid="emailLinkDisplay">[EMAIL PROTECTED]</span>
</a>
</td>
</tr>
</table>
Back in the page Class, you'll need a listener and the page you want to return:
@InjectPage("ShowDetails")
public abstract ShowDetails getUserDetailsPage();
public ShowUserDetails onShowDetails(String email) {
System.out.println("Showing details for " + email);
getUserDetailsPage().setViewUserWithEmail(email);
return getUserDetailsPage();
}
Hope this helps.
Dan
On 10/31/06, ra <[EMAIL PROTECTED]> wrote:
I'd like display links in a table, but ... column names are unknown at the
development time
I'm new to tapestry and don't what is the best solution.
What I found is I can override method getValueRender in i.e.
SimpleTableRenderer and return somehow PageLink instance but it's abstract
class and have no idea how to do it
--
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http://www.nabble.com/links-in-a-table-tf2548557.html#a7103183
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