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Angular appending html with directives from within a directive

I'm trying to write a small directive that will append the validation tags and ngMessages dynamically to the input. But I'm having trouble appending the ng-message attribute to the div.
The idea is to have this,
<div validator validations="{json_data containing error messages}">
<input name='fieldName'>
</div>
Turned in to the following according to the provided JSON.
<div validator>
<input required="required"></input>
<div ng-message="fieldName" ng-if="fieldName.$dirty>
<p ng-message="required"> scope.message </p>
</div>
</div>
I've currently managed to get the ng-required appeneded using the answer to this answer. But I can't seem to append the ng-message tag using the same technique. What should be done differently to solve this issue?
The final directive should be able to generate something like this Fiddle
The current version can be found in the Fiddle here the example works as expected until 'scope' is added. But as soon as 'scope' is added, the example stops working.
Update
I've realized that this only occurse when you add a local scope. This error doesn't occure when using the global scope and accessing the variable using scope.$eval(attrs.message)

AngularJS Ng-repeat, create dynamic dom with expressions

Here is The problem i am trying solve. I would like to create a JS script that uses angular to dynamically create div elements while adding an additional expression eg {{levelone}}.
Here is an an example of what i am expecting the output to be if i know i have 5 iterations of Dom elements.
<div ng-switch-when="0">{{levelZero}}</div>
<div ng-switch-when="1">{{levelOneA}}{{levelOneB}}</div>
<div ng-switch-when="2">{{levelTwoA}}{{levelTwoB}}{{levelTwoC}}</div>
etc.....
So as you can see i am adding an expression on each time. I just dont know how i can keep adding them on via a repeat loop and then get them to compile correctly with AngularJS. I am trying to make my DOM as Dynamic as possible.
EDIT
Every time i loop 1 more i am adding an expression ->{{expression}} to the div with JS or angular. I am not hard coding the expression into each div as each div is also dynamically created. But with a twist i am adding that extra expression ie 3 expressions from the previous div and adding one more expression making four. see example below.
<div ng-switch-when="3"{{levelTwoA}}{{levelTwoB}}{{levelTwoC}}</div>
This one below is dynamically generated
<div ng-switch-when="4"{{levelTwoA}}{{levelTwoB}}{{levelTwoC}}{{THIS EXPRESSION IS GENERATED IN js AND ADDED & COMPILED}}</div>

The DOM will be dynamic as long as your data bindings are. I need more info (data model, expectations) to be more accurate but if you set up your data and bind it correctly, it should work. for example if your data looked like this
var data = {
"levelOne" : {},
"levelTwo" : {
"elements" : ["<span id="firstEl"></span>, ...]
},
"levelThree" : {
"elements" : ["<span id="firstEl"></span>, <span id="secondEl"></span>, ...]
}
Then in your template do what #paulgoblin suggested.
}

You could ng-repeat within each switch case. Eg.
<div ng-switch-when="0">
<span>{{levelZero}}</span>
</div>
<div ng-switch-when="1">
<span ng-repeat="expression in levelOne">{{expression}}</span>
</div>
<div ng-switch-when="2">
<span ng-repeat="expression in levelTwo">{{expression}}</span>
</div>

You might want do this with scope function.
<div ng-switch="assignment.id">
<div ng-switch-when="1">{{ getExpressions(assignment.id) }}</div>
<div ng-switch-when="2">{{ getExpressions(assignment.id) }}</div>
</div>

Cant get a message text to render an emoji rather than the HTML text

I am using a cool little AngularJS filter for emoji characters located at: http://dev.venntro.com/angular-emoji-filter/ and this is my code I have so far.
<p class="chatmessage plain ng-binding" ng-repeat="message in messages track by $index" ng-model="message" ng-bind-html-unsafe="message | emoji">
<b>{{message.Author}}:</b>{{message.Message|emoji}}
</p>
It gives me the following output:
User123: <i class='emoji emoji_smiley'>smiley</i>
obviously, I'd rather have the emoji icon, but that is what gets output to the page. This is almost a win for me even at this stage as I had to figure out how to add all of the appropriate references to get the message filter to work and get this far. Now I am trying to come up with a way to make the "message.Message" render the HTML rather than just giving me the HTML code itself.
I am wondering if there is a function that I can wrap around that to force it to render this emoji rather than the HTML?
Thank you for any help
Sincerely,
New kid to AngularJS

I think you need to try with below ng-repeat code :
<p class="chatmessage plain" ng-repeat="message in messages track by $index">
<b>{{message.Author}}:</b><p ng-bind-html-unsafe="message.Message | emoji"></p>
</p>

knockout - set visible only one item in a list generated by json

hi it's a cordova app that use devexpress framework based on knockout i need to set visible only one item in a list
the item should correspond to the param.id or this
id_agenzia:ko.observable(params.id),
i've tryed with jquery (setting the id "#"+$data.id_agenzia visible if == id_agenzia ) but if i integrate it doesn't work
the goal is to do something like this
if i put this line it ignores
how is the right way to set visible only the div that corresponds to $data.id_agenzia is valid for $data.id_agenzia==id_agenzia ?
thank you for help
this is the js code with jsfiddle code added
self.selected_id_agenzia = ko.observable('two');
self.jsonLista = ko.observableArray([
{id_agenzia:ko.observable('one'), nome:'N1'},
{id_agenzia:ko.observable('two'), nome:'N2'}
noDataLabel: noDataLabel,
this is the html code with jsfiddle code added
<div class="list-indentation" data-bind="foreach:jsonLista" style="padding-bottom:60px;">
<div id="$data.id_agenzia" data-bind="visible: id_agenzia()==selected_id_agenzia()">
<div class="agency-description-box" >
<span data-bind="text: $data.id_agenzia" class="agency-name"></span>
<span data-bind="text: $data.nome" class="agency-name"></span>
</div>
</div>
</div>

I think I misunderstood what you were doing with the variables. I have made a simplified fiddle to do what I think you want. To make it work:
I assumed a dxList was more or less like a foreach
I changed the name of the outer id_agenzia to selected_id_agenzia, as I was not able to get the comparison to work using $data and $root to distinguish them
I made both items ko.observables, and used the function call on each in the comparison
</div>
The code is all at the fiddle:
http://jsfiddle.net/3ktq4b9s/

ng-bind-html does not work

please look at this fiddle
please type 4 in the text area,
it should write an error message, that is in this line:
$names.push('<div ng-bind-html-unsafe="snippet"></div>');
actually it does not. It prints the html code itself without handling,
and the underlying html is:
<li ng-repeat="user in list|splitList:appUsers" class="ng-scope ng-binding">
<div ng-bind-html="snippet"></div>
</li>
I tried to follow solutions from this topic
but nothing seem to help,
any help in fixing it will be regarded,

I got help from the chat room of angularjs,
the thing is that I should use:
<div ng-bind-html-unsafe="user">...</div>
instead of {{user}}

To get it to work you will need the following:
Declare it in html
div ng-bind-html="{expression}"></div>
Or
div class="ng-bind-html: {expression};"></div>
AND
reference angular-sanitize.min.js and then add
angular.module('YOUR_APP_NAME', ['ngSanitize']);
The last two are in the angularjs documentation for some reason...