Revision: 824
http://stripes.svn.sourceforge.net/stripes/?rev=824&view=rev
Author: bengunter
Date: 2008-01-31 17:35:06 -0800 (Thu, 31 Jan 2008)
Log Message:
-----------
Fixed STS-172. Added a new EL function hasErrors(ActionBean bean, String field)
that can be used like
<c:if test="${s:hasErrors(actionBean, 'foo')}">...</c:if>
Modified Paths:
--------------
trunk/stripes/resources/stripes.tld
trunk/stripes/src/net/sourceforge/stripes/tag/ElFunctions.java
Modified: trunk/stripes/resources/stripes.tld
===================================================================
--- trunk/stripes/resources/stripes.tld 2008-02-01 00:46:36 UTC (rev 823)
+++ trunk/stripes/resources/stripes.tld 2008-02-01 01:35:06 UTC (rev 824)
@@ -2193,5 +2193,15 @@
<name>enumName</name>
<function-class>net.sourceforge.stripes.tag.ElFunctions</function-class>
<function-signature>java.lang.String
name(java.lang.Enum)</function-signature>
+ </function>
+
+ <function>
+ <description>
+ Indicates if validation errors exist for the given field of the
given ActionBean.
+ This allows for use of JSTL logic tags such as c:if and
c:choose.
+ </description>
+ <name>hasErrors</name>
+
<function-class>net.sourceforge.stripes.tag.ElFunctions</function-class>
+ <function-signature>boolean
hasErrors(net.sourceforge.stripes.action.ActionBean,
java.lang.String)</function-signature>
</function>
</taglib>
Modified: trunk/stripes/src/net/sourceforge/stripes/tag/ElFunctions.java
===================================================================
--- trunk/stripes/src/net/sourceforge/stripes/tag/ElFunctions.java
2008-02-01 00:46:36 UTC (rev 823)
+++ trunk/stripes/src/net/sourceforge/stripes/tag/ElFunctions.java
2008-02-01 01:35:06 UTC (rev 824)
@@ -14,6 +14,13 @@
*/
package net.sourceforge.stripes.tag;
+import java.util.List;
+
+import net.sourceforge.stripes.action.ActionBean;
+import net.sourceforge.stripes.action.ActionBeanContext;
+import net.sourceforge.stripes.validation.ValidationError;
+import net.sourceforge.stripes.validation.ValidationErrors;
+
/**
* A collection of static functions that are included in the Stripes tag
library. In most
* cases these are not functions that are specific to Stripes, but simply
functions that
@@ -28,4 +35,22 @@
public static String name(Enum<?> e) {
return e.name();
}
+
+ /** Indicates if validation errors exist for the given field of the given
[EMAIL PROTECTED] ActionBean}. */
+ public static boolean hasErrors(ActionBean actionBean, String field) {
+ if (actionBean == null || field == null)
+ return false;
+
+ ActionBeanContext context = actionBean.getContext();
+ if (context == null)
+ return false;
+
+ ValidationErrors errors = context.getValidationErrors();
+ if (errors == null || errors.isEmpty())
+ return false;
+
+ List<ValidationError> fieldErrors = errors.get(field);
+ return fieldErrors != null && fieldErrors.size() > 0;
+ }
+
}
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