angularJS directive with isolated scope, attribute binding doesn't work

Question

Please see this jsfiddle: http://jsfiddle.net/viro/DK5pC/3/

What I did looks right compared to the tutorials and replies I've found, so I'm sure I'm overlooking something trivial.

I'm trying to do a directive on a html element, that will create a sibling div to display a message associated with the original element.

for example, for this html :

<input ng-model="inp" tst-msg="message" />

I would create as a sibling element:

<div class="msg">Msg:<span ng-bind="tstMsg"></span></div>

I was hoping that tstMsg in the div's scope would be bound to message in the input's scope.

Here's what the directive looks like :

angular.module('tst', []) .directive('tstMsg', function(){ var template = "<div class='msg' >Msg:<span ng-bind='tstMsg'></span></div>"; var link = function(scope,element,attrs) { element.parent().append(template); console.log("link called"); }; return { restrict: 'A', scope: { tstMsg: '=' }, link: link }; });

Well that doesn't work and I can't figure out why.

KayakDave · Accepted Answer · 2013-12-12 16:38:17Z

2

You need to $compile the template you're adding to the DOM. Angular hasn't had a chance to add it's handlers, for instance the ng-bind directive to that part of the dom.

So instead of just adding the element like this:

element.parent().append(template);

These steps will let Angular process your template and then add it.

newe = angular.element(template); $compile(newe)(scope); element.parent().append(newe);

Updated fiddle

answered Dec 12, 2013 at 16:38

KayakDave

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3 Comments

David V. Over a year ago

question: why did you have to modify the scope object to { tstMsg: '=tstMsg' } ? I thought with just '=' it'd work.

KayakDave Over a year ago

Good catch - short answer is yes just the equal sign alone is good { tstMsg: '=' }. Background is the fiddle in your link had tstBubble: '=' which I switched to tstBubble: '=tstMsg'. Then I saw your post used tstMsg instead of tstBubble so I switched the names in the code to match your post, but using a global search and replace.

David V. Over a year ago

Ah, didn't notice that. I thought I had renamed it to tstMsg before posting the link.

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