DMZ 1.7.1 (DataMapper OverZealous Edition)

[eluser]Spir[/eluser]
[quote author="j0nxiest" date="1275317111"]I didn't quite get from the documentation how to work with related items with the from_array method. I tried to do like this:

The form:

Code:

<?php
$usergroup = new Usergroup();
$usergroup->where('group_name','user')->get();
?>
<label for="username">Username: &lt;input type="text" name="username" id="username" class="text" value="&lt;?=set_value('username', $user-&gt;username); ?&gt;" /></label><br/>
&lt;input type="hidden" name="usergroup" value="&lt;?=set_value('usergroup', $usergroup-&gt;id)?&gt;" />

The handler:

Code:

$user = new User();
$user->from_array($_POST);
$user->save();

But it complaints that the usergroup relation is not set, what am i doing wrong? The usergroup var is POSTed correctly.[/quote]
I'm not sure since I never used this and I discover this functionnality with your post but I think your solution is in the second parameter of the from_array function → from_array($data, $fields, $save)

The field usergroup should be called usergroup_id?
Why adding this hidden value if you won't update it?
http://www.overzealous.com/dmz/pages/ext...array.html

Also you could have specified TRUE then no need to call save().