[ http://issues.apache.org/jira/browse/VALIDATOR-129?page=all ]
Niall Pemberton updated VALIDATOR-129:
--------------------------------------
Bugzilla Id: (was: 38133)
Summary: Enhance form to handle nested forms (beans) (was:
[validator] [patch] Enhance form to handle nested forms (beans))
Fix Version/s: Validator2
> Enhance form to handle nested forms (beans)
> -------------------------------------------
>
> Key: VALIDATOR-129
> URL: http://issues.apache.org/jira/browse/VALIDATOR-129
> Project: Commons Validator
> Issue Type: Improvement
> Components: Framework
> Affects Versions: 1.2.0 Release
> Environment: Operating System: other
> Platform: Other
> Reporter: Tomasz Bech
> Priority: Minor
> Fix For: Validator2
>
> Attachments: nested-patch-v1.txt
>
>
> It was initialy discussed in the bug
> http://issues.apache.org/bugzilla/show_bug.cgi?id=16394
> but I recognized that the author wanted a little bit different feature.
> Generally validator doesn't support validation of nested beans/forms. Current
> IndexedListProperty implementation allows it only for one nested bean, it is
> not
> sufficient for complex forms/beans (many nested levels), it is rather
> workaround
> than full implementation. It also doesn't correspond to Struts nested tag (and
> validator is mainly used by Struts).
> Patch is included, it is based on latest validator1.2.0 svn.
> Form tag can now include nested tag as (it is in dtd_1.2.1):
> <!--
> Defines the nested beans to be validated. Two way of nested beans are
> possible:
> simple - accessed by property and
> 'indexed'- accessed by indexed property.
> Nested validation supports any level of nested beans. The idea and
> usage
> is similar to nested tag in Struts taglib.
> The nested element accepts these attributes:
> property The property on the JavaBean corresponding to this
> nested element.
> indexedListProperty
> The "indexedListProperty" is the method name that will
> return an array or a Collection used to retrieve the
> list and then loop through the list performing the
> validations on the bean.
> type The type/name of the nested bean which will be validated.
> The validation rules are described as
> standard form tag with the same name
> as specified for type.
> One and exactly one of property and indexedListProperty can be specified
> exclusively.
> -->
> <!ELEMENT nested (msg|arg|var)*>
> <!ATTLIST nested property CDATA #IMPLIED>
> <!ATTLIST nested indexedListProperty CDATA #IMPLIED>
> <!ATTLIST nested type CDATA #REQUIRED>
> Example usage is:
> <form-validation>
> <global>
> <validator name="byte"
> classname="org.apache.commons.validator.TestValidator"
> method="validateByte"
>
> methodParams="java.lang.Object,org.apache.commons.validator.Field"
> msg=""/>
> </global>
> <formset>
> <form name="complexForm">
> <field property="value" depends="byte"/>
> <nested property="subForm" type="subForm1"/>
> <nested indexedListProperty="listSubForms"
> type="subForm2"/>
> <nested indexedListProperty="listComplexSubForms"
> type="subFormComplex"/>
> </form>
> <form name="subForm1">
> <field property="value" depends="byte"/>
> </form>
>
> <form name="subForm2" extends="subForm1">
> </form>
> <form name="subFormComplex">
> <field property="value" depends="byte"/>
> <nested property="subForm" type="subForm1"/>
> <nested indexedListProperty="listSubForms"
> type="subForm2"/>
> </form>
>
> </formset>
> </form-validation>
> There is test included (NestedTest.java), see there NestedTest-config.xml and
> how to use nested tag.
> Currently I tested it in our STRUTS project, it works correctly for 2 level
> nested beans.
> Please give me any feedback, reports, bugs, etc. I hope that there is a chance
> to have it merged in the source base.
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