[studs-user] Re: studs-user digest, Vol 1 #30 - 1 msg

[Timur V. <ti...@e-...>]

Hello, studs-user-request.

Sunday, July 3, 2005, 7:37:50 AM, you wrote:

surlsn> Today's Topics:

surlsn>    1. How to implement validation? (Adriano Bonat)

surlsn> Hello!

surlsn> I'm doing some tests in Golflog sample application, and could not
surlsn> implement a validation at the present moment.

I use a following method:

Abstract class BaseActionForm

<?php

        import('studs.action.ActionForm');
        import('studs.action.ActionMessages');
        import('studs.action.ActionMessage');
   =20
        class BaseActionForm extends ActionForm
        {
                var $id;
               =20
                function setId($value)
                {
                        $this->id =3D $value;
                }
               =20
                function getId()
                {
                        return $this->id;
                }
               =20
                function validate(&$mapping, &$request)
                {
                        if ($this->isSubmited($mapping->name))
                        {
                                $errors =3D $this->isValid($mappingm, $requ=
est);
                               =20
                                if ($errors)
                                {
                                        BeanUtils::populate($form, $_REQUES=
T);
                                       =20
                                        return $errors;
                                }
                                else
                                        return null;
                        }
                        {
                                $this->firsFormCall($mapping, $request);
                               =20
                                return null;
                        }
                }
               =20
                function isSubmited($frm_name =3D null, $method =3D 'POST')
                {
                        return isset($_REQUEST[$frm_name]) && (is_null($met=
hod) || $_REQUEST[$frm_name] =3D=3D $method);                   =20
                }

                function &isValid(&$mapping, &$request)
                {
                        $errors =3D& new ActionMessages();
                       =20
                        return $errors;
                }
               =20
                function firsFormCall(&$mapping, &$request)
                {
                }
               =20
                function isItemExists($obj)
                {
                        if (is_null($obj))
                                return false;
                               =20
                        return $obj->getId() !=3D $this->getId();
                }              =20
        }

?>

And at the end class NewsForm (for example) I overload isValid method

class NewsForm extends BaseActionForm
{
...

                function &isValid(&$mapping, &$request)
                {
                        $errors =3D& parent::isValid($mapping, $request);
       =20
                        if (!$this->getAnno())
                                $errors->add(c('ActionMessages::GLOBAL_MESS=
AGE'), new ActionMessage('news.errors.anno'));
                               =20
                        if (!$this->getText())
                                $errors->add(c('ActionMessages::GLOBAL_MESS=
AGE'), new ActionMessage('news.errors.text'));
                       =20
                        return $errors;
                }
...
}

struts-config.xml changes:

                <action
                    path                =3D "/admin/news"
                    type                =3D "app.admin.NewsAction"
                    name                =3D "adminNewsForm"
                    scope               =3D "request"
                    validate             =3D "true"
                    input               =3D "edit"
                >
                    <forward name=3D"browse" path=3D"/WEB-INF/content/page/=
admin/news.browse.psp" />
                    <forward name=3D"edit" path=3D"/WEB-INF/content/page/ad=
min/news.edit.psp" />
                    <forward name=3D"next" path=3D"/admin/news.html" redire=
ct=3D"true" />
                </action>

                ....

                <message-resources parameter=3D"application" />


application.properties:

news.errors.date=3DDate error
news.errors.anno=3DAnno error
news.errors.text=3DText error

And at the psp page errors output:

<html:messages id=3D"message" scope=3D"request">
<div class=3D"error-block"><c:out value=3D"${message}" /></div>
</html:messages>




--
 Send plain text only to timurv at e-kazan dot ru
 PGP key: http://wwwkeys.us.pgp.net:11371/pks/lookup?op=3Dget&search=3D0x42=
5B9F0F
--
 Timur Vafin