javascript - JSF components not parsed inside a <script> block -

-

i had change <script> ... </script> in jsf page , tried evaluate jsf component inside of script. el evaluated tag untouched.

what reason behaviour?

example:

<script type="text/javascript">     //<![cdata[         function dosomething() {             $('.usernode').droppable({                 activeclass : 'ui-state-active',                 hoverclass : 'ui-state-highlight',                 tolerance : 'intersect',                 drop : function(event, ui) {                    <h:panelgroup rendered="#{mybean.usethis}">                      alert("code a");                    </h:panelgroup>                    <h:panelgroup rendered="#{!mybean.usethis}">                      alert("code b");                    </h:panelgroup>         }             });         };     //]]>   </script>

the el #{!mybean.usethis} evaluated true/false <h:panelgroup> in result of rendering.

why?

it's because placed inside cdata block. inside cdata block considered character data, not xml data.

better don't @ all. poor practice. put js function in own .js file. use jsf/el prepare javascript variables js functions ask (as method argument) or access (in window scope), not fill parts of js functions.

e.g.

<h:outputscript>var usethis = #{mybean.usethis};</h:outputscript> <h:outputscript name="script.js" /> 
function dosomething() {     $('.usernode').droppable({         activeclass : 'ui-state-active',         hoverclass : 'ui-state-highlight',         tolerance : 'intersect',         drop : function(event, ui) {            if (usethis) {                alert("code a");            }            else {                alert("code b");            }         }     }); }

to prevent pollution of global scope, consider creating namespace.

<h:outputscript>var = my||{}; my.usethis = #{mybean.usethis};</h:outputscript> 
           if (my.usethis) {                alert("code a");            }            else {                alert("code b");            }

see also:


Comments

Post a Comment

Popular posts from this blog

yii2 - Yii 2 Running a Cron in the basic template -

-
i have seen instructions on running cron in advanced template, cant figure out how on basic template. have following controller in basic controllers folder. <?php namespace app\controllers; use yii\console\controller; /** * cron controller */ class croncontroller extends controller { public function actionindex() { echo "cron service runnning"; } public function actionmail($to) { echo "sending mail " . $to; } } i have navigated root of application , tried these comands yii cron php yii cron im getting unknown comand "cron" i know old question failed find actual answer this. if @ code yii exec file you'll notice requires /common/config/aliases.php file console/config/main.php. can naturally change these or copy on these advanced template. hope solves problem wanting same thing.
Read more

asp.net - 'System.Web.HttpContext' does not contain a definition for 'GetOwinContext' Mystery -

-
i realize question might seem trivial some, it's these types of things find myself fighting quite bit , want make sense of despite seeming losing battle in .net (for me anyway). so, if following: using system.web; ... applicationuser user = system.web.httpcontext.getowincontext().getusermanager<applicationusermanager>().findbyid(system.web.httpcontext.user.identity.getuserid()); that produces error in title , red getowincontext() , error cannot resolve symbol 'getowincontext()' however, if following (remove system.web in front of httpcontext ), works expected (or @ least no errors): using system.web; ... applicationuser user = httpcontext.getowincontext().getusermanager<applicationusermanager>().findbyid(system.web.httpcontext.user.identity.getuserid()); however, if (same line that's working using system.web commented out): //using system.web; ... applicationuser user = httpcontext.getowincontext().getusermana...
Read more

mercurial graft feature, can it copy? -

-
there new feature in mercurial 3, called 'graft' (graft local). job of moving change-set different branch. is there way "copy" change-set branch? i interested in in moving stuff qa branch production branch, still need code reside in qa. want copy. found , have tried few things, maybe it'll become clear more tinkering , reading... does have better way of 'cherry picking' change-sets move cross branch (or trunk)??? graft copies changesets, doesn't move them. hg graft (emphasis mine): this command uses mercurial's merge logic copy individual changes other branches without merging branches in history graph. known 'backporting' or 'cherry-picking' . default, graft copy user, date, , description source changesets.
Read more