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<p style="margin: 10px 0 0 0">Hi Tom,</p>
<p style="margin: 10px 0 0 0">Thanks for the reply.</p>
<p style="margin: 10px 0 0 0">I've been looking at ways to solve this. I've explored the settings available on the AttributePredicate, but that is applied only to the attribute ID, not diving to the attribute values.</p>
<p style="margin: 10px 0 0 0">I have for now fixed this for myself in intercept/attribute-release.vm directly by filtering the attributes in the loop:</p>
<div class="preformatted panel" style="border-width: 1px;; border: 1px solid #ccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #ccc; -moz-border-radius: 3px 3px 3px 3px; border-radius: 3px 3px 3px 3px; margin: 9px 0">
<div class="preformattedContent panelContent" style="padding: 9px 12px">
<pre style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal; white-space: pre; word-break: normal; word-wrap: break-word; word-break: break-word; white-space: pre-wrap">root@tkrvirdev01:/opt/shibboleth-idp/views/intercept#diff -U 10 ../../dist/views/intercept/attribute-release.vm.dist attribute-release.vm
--- ../../dist/views/intercept/attribute-release.vm.dist 2016-07-27 10:31:34.685411297 +1200
+++ attribute-release.vm 2016-08-26 15:30:49.216768403 +1200
@@ -65,37 +65,45 @@
<table>
<thead>
<tr>
<th colspan="3">
#springMessageText("idp.attribute-release.attributesHeader", "Information to be Provided to Service")
</th>
</tr>
</thead>
<tbody>
#foreach ($attribute in $attributeReleaseContext.getConsentableAttributes().values())
+ #set ($hasValue = false)
+ #foreach ($value in $attribute.values)
+ #if ($value.class.name != "net.shibboleth.idp.attribute.EmptyAttributeValue")
+ #set ($hasValue = true)
+ #end
+ #end
+ #if ($hasValue == true)
<tr>
<td>$encoder.encodeForHTML($attributeDisplayNameFunction.apply($attribute))</td>
<td>
#foreach ($value in $attribute.values)
<strong>$encoder.encodeForHTML($value.getDisplayValue())</strong>
<br>
#end
</td>
<td style="vertical-align: top">
#if ($attributeReleaseFlowDescriptor.perAttributeConsentEnabled)
#set ($inputType = "checkbox")
#else
#set ($inputType = "hidden")
#end
<input id="$attribute.id" type="$inputType" name="_shib_idp_consentIds" value="$encoder.encodeForHTML($attribute.id)" checked>
</td>
</tr>
+ #end
#end
</tbody>
</table>
</div>
#if ($privacyStatementURL)
<p style="margin-top: 10px;">
<a href="$privacyStatementURL">#springMessageText("idp.attribute-release.privacyStatementURLLabel", "Data privacy information of the service")</a>
</p>
#end
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<ul class="alternate" type="square">
<li>
so considering an attribute to "have a value" only if it contains at least one AttributeValue object who's type is not EmptyAttributeValue. Works for me.
</li>
</ul>
<p style="margin: 10px 0 0 0">Wondering whether the proper fix would be to introduce yet another bean that would be applying a predicate to the attribute values - with a predicate filtering out EmptyAttributeValue objects included either as a sample or in the default configuration .... ?</p>
<p style="margin: 10px 0 0 0">Cheers,<br /> Vlad</p>
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