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AngularJS make directive from ngMessages

I want to create a directive which allow me to generate validation message near input - based on ngMessages(as in example).I have this working HTML example:
<div class="field">
<div class="ui right icon input">
<input type="email" name="email" ng-model="vm.user.email" placeholder="E-mail" required>
<i class="at icon"></i>
</div>
<div ng-messages="vm.signUpForm.email.$error" ng-show="vm.signUpForm.$submitted">
<div ng-messages-include="shared/validation/formErrorMessages.html"> </div>
</div>
</div>
My current directive:
var app = angular.module('app.directives', []);
app.directive('formError', function() {
return {
restrict: 'AE',
replace: 'false',
scope: {
statement: '#',
error: '#'
},
template: '<div ng-messages="error" ng-show="true"><div ng-messages-include="shared/validation/formErrorMessages.html"></div></div>'
};
});
And how I tried to run it:
<div form-error error="{{ vm.signUpForm.email.$error }}" statement="{{ vm.signUpForm.$submitted }}"></div>
It's not working - message won't appear - without any error. On message show I will also want to add class 'error' to 'div.field', but it should be easy.
Any idea how to make this directive work or maybe how to handle this in another, more comfortable way?

You made a a mistake, you should pass attributes to directive with
scope: {
statement: '=',
error: '='
},
# biding is for passing string values, not objects and error is an object, so passing it that way will not work as expected. Of course you could use attr.$observe and JSON.parse, but that is not what you wanna do here.
https://plnkr.co/edit/iRRPqLpmqdQltNjw35Nb?p=preview

Problems with Angular button

I'm creating my first Angular app and ran into a couple things that I just can't figure out. Whenever I include this:
<button ng-hide="results.length === projects.length" ng-click="limit = limit +3; gotoBottom()">Show More</button>
Inside of my template the app refuses to load but if I paste it anywhere outside of the template it works fine. I'd like to keep the button inside the template if at all possible so what on earth am I doing wrong?
Also, I'd like that button to also scroll to the #footer div and the ng-click doesn't seem to run this bit code:
$scope.gotoBottom = function() {
$location.hash('footer');
$anchorScroll();
};
I've created a Plunker of my code that can be found here:
https://plnkr.co/edit/MP4Pp4WLcn5EFb3pTEXx

By "template" if you are talking about projects template. Here is what you need to do.
Explanation:
The projects template need to have only one root element, so I added a div to wrap your project listing and show more button.
<div>
<div class="cards" ng-init="limit = 3">
<div class="card" ng-repeat="project in projects | limitTo: limit as results">
<div class="card-image">
<img src="{{project.img}}" alt="{{project.name}}" />
</div>
<div class="card-copy">
<h2>{{project.name}}</h2>
<p>{{project.desc}}</p>
<p><i class="fa fa-location-arrow"></i></p>
</div>
</div>
</div>
<button ng-hide="results.length === projects.length" ng-click="limit = limit +3; gotoBottom()">Show More</button>
<div id="footer" name="footer"></div>
</div>
For auto scroll: inject $timeout service
Explanation:
You did not had any div named footer so I added one just below the show more button and added a 100ms timeout, so that after your 3 projects load, it will scroll to the footer div. $timeout is very necessary because need to first render your projects and then scroll.
$scope.gotoBottom = function() {
$timeout(function() {
$location.hash('footer');
$anchorScroll();
}, 100);
};
Working Plunker: https://plnkr.co/edit/U3DDH57nh0Mqlpp2Txi4?p=preview
Hope this helps!

change the below code in projects.js
angular.module('portfolioApp')
.directive('projects', function() {
return {
templateUrl: 'projects.html',
controller: 'mainCtrl',
replace: true // remove directive tags
};
});
to
replace: false
it should do the trick. Plunker Link here

Angular: find parent Objects inside directives

I'm having the following problem:
I want to use a directive at different places in an app and don't want to specify the parent object and directive object every time i use the directive.
Look at this plnkr:
http://plnkr.co/edit/yUoXXZVJmoesIQNhoDDR?p=preview
Its just a $scope.data object that stores a multilevel array.
$scope.data=
[
{"name": "LEVEL0_A", "subitems":
[
{"name":"Level1_A", "subitems":[{"name":"A"},{"name":"B"}]},
{"name":"Level1_B", "subitems":[{"name":"C"},{"name":"D"}]},
...
...
and so on
and there is a little sample custom directive, called deleteItem, that does exactly that.
.directive('deleteItem', function() {
return {
scope:{
item:'=',
parent:'='
},
template: '<ng-transclude></ng-transclude>Delete',
transclude:true,
controller: function($scope){
$scope.deleteItem=function(currentItem,currentParent){
currentParent.subitems.splice(currentParent.subitems.indexOf(currentItem),1);
};
}
};
});
here you see the html template
<body ng-app="myApp">
<div ng-controller="myController">
<div ng-repeat="level0 in data">
<h2>{{level0.name}}</h2>
<div ng-repeat="level1 in level0.subitems">
<div delete-item parent="level0" item="level1">
{{level1.name}}
</div>
--------------------
<div ng-repeat="level2 in level1.subitems">
<div delete-item parent="level1" item="level2">
Name: {{level2.name}}
</div>
</div>
<hr>
</div>
</div>
</div>
</body>
I mean it works, but actually i feel that there must be some way finding the item and parent without specifically linking them to the scope manually.
I'd be really glad if someone could point me in the right direction.
Thanks
Markus

If you do something like this.
$scope.deleteItem=function(currentItem,currentParent){
currentParent.subitems.splice(currentParent.subitems.indexOf(currentItem),1);
};
Then your directive becomes dependent upon the structure of data outside it's scope. That means that the directive can only delete items if it follows exactly that pattern. What if you want to use the delete button on data that isn't from an array?
The better approach is to use the API feature & to execute an expression on the outer scope.
app.directive('deleteItem', function () {
return {
scope: {
remove: '&deleteItem'
},
template: '<ng-transclude></ng-transclude><a ng-click="remove()">Delete</a>',
transclude: true
};
});
When the user clicks "Delete" the remove() API is called and the template handles how that item is removed.
<div ng-repeat="level0 in data">
<h2>{{level0.name}}</h2>
<div ng-repeat="level1 in level0.subitems">
<div delete-item="level0.splice($index,1)">
{{level1.name}}
</div>
--------------------
<div ng-repeat="level2 in level1.subitems">
<div delete-item="level1.splice($index,1)">
Name: {{level2.name}}
</div>
</div>
<hr>
</div>
</div>

How to create a dialog in AngularJS, but load only the dialog content from the server

I know it might be a simple question, but I'm frustrated here, and I can't make it work. I'm new to AngularJS, and I'm trying to implement a modal dialog (or find one) with these conditions:
Dialog content might come from anywhere—a string template, a script template, or a template from a URL
Dialog title and actions will come from the caller, not the callee. In other words, the parent scope decides the title and which action buttons should exist in the modal dialog (many dialogs I found encapsulate the title and action buttons in the template itself, for example this one)
Content of the template should be totally independent from parent scope (caller). In fact, it might not even be written in AngularJS. It might use jQuery.
In case the loaded template is in AngularJS, it should encapsulate its controller. For example, ng-include doesn't like <script> tags.
There is a workaround for it (here, here and here) but the idea of decorating a script tag with text/javascript-lazy is very smelly and dirty, let alone that I want the content HTML to be self-contained and executable in case it's not loaded as the content of an AngularJS modal dialog.
Communication between the parent scope and the content should be done via a common contract (JavaScript events come to my mind)
I've tried ngDialog, but the problem is that the container should pass the controller to the loaded template. That's not what I want.
In Bootstrap dialog also it seems that you have to pass the controller from the parent scope to the dialog content. This breaks the very notion of encapsulation. It's not desirable. Also, it's dependent on dialog result, which is not desirable either.

I recommend use Angular-UI library. You can easy create any dialog a-la "Twitter Bootstrap":
Include js in your page head.
<script src="/desktop/libs/angular-bootstrap/ui-bootstrap.js"></script>
<script src="/desktop/libs/angular-bootstrap/ui-bootstrap-tpls.js}"></script>
Include modules at app initialization.
var Application = A.module('MyApp', [ 'ui.bootstrap', 'ui.bootstrap.modal' ]);
Inject in jour controller $modal:
(function (A){
"use strict";
A.module("MyApp").controller("OpenDlg", [ "$scope", "$modal", function($scope, $modal){
$scope.openDlg = function(){
$modal.open({
controller : 'CategoryAddController',
templateUrl : '/admindesktop/templates/category/add/'
}).result.then(function(modalResult){
console.log(modalResult);
});
};
} ]);
}(this.angular));
For example, simple template for dialog:
<div class="modal-content">
<div class="modal-header">
<h4 class="modal-title text-center">Создание новой категории</h4>
</div>
<form class="modal-body form-horizontal" name="categoryForm">
<div class="form-group">
<label for="name" class="control-label col-xs-3">Название</label>
<div class="col-xs-9">
<input name='name' type="text" class="form-control" ng-model="category.name" maxlength=50 required ng-required="true"/>
</div>
<div class="row has-error" ng-show="errors.name">
<p ng-repeat="error in errors.name">{{ error }}</p>
</div>
</div>
<div class="container-fluid" ng-show="errors.length > 0">
<div class="row">
<p class="text-center text-danger" ng-repeat="error in errors">{{ error }}</p>
</div>
</div>
</form>
<div class="modal-footer">
<button class="btn btn-primary" ng-click="save()" ng-disabled="categoryForm.$invalid">Сохранить</button>
<button class="btn btn-default" ng-click="cancel()">Отмена</button>
</div>
</div>
Main: controller for modal window:
(function(A) {
"use strict";
var app = A.module('MyApp');
app.controller('CategoryAddController', [ '$scope', '$modalInstance', 'Category', 'growl', function($scope, $modalInstance, Category, growl) {
$scope.save = function() {
var category = new Category($scope.category);
category.$save(function() {
growl.success('Категория успешно создана');
$modalInstance.close(true);
}, function(response) {
$scope.errors = response.data;
});
};
$scope.cancel = function() {
$modalInstance.close(false);
};
} ]);
}(this.angular));
I use Service for data changing between modal controller and parent scope:
(function(A){
"use strict";
A.module("MyApp").service('Storage', function(){
return {
storedData: undefined
};
});
}(this.angular));
In parent scope:
Storage.storedData = ...; //For example, selected row of table
In modal controller:
$scope.item = Storage.storedData; //Selected row of table
Also angular have special module type, value.

AngularJS ng-repeat applied multiple times in $compiled directive

I've written a directive that dynamically creates a popover for an element:
app.directive('popover', function($compile, $timeout){
return {
link: function(scope, element, attrs) {
$timeout(function() {
// grab template
var tpl = $(element).find('.popover-template')
// grab popover parts of template
var template = {
//$compile( $(element).siblings(".pop-content").contents() )(scope)
title: tpl.find('.template-title').contents(),
content: tpl.find('.template-content').contents()
};
// render template with angular
var content = $compile(template.content)(scope);
var title = $compile(template.title)(scope);
$(element).popover({
html: true,
placement: "right",
content: content,
title: title
});
scope.$digest()
});
}
};
});
In application it looks like this:
<span popover>Click me</span>
<div ng-hide="true" class="popover-template">
<div class="template-title">
<strong>{{ x.name }} and {{ y.name }}</strong>
</div>
<div class="template-content">
<div>
<pre>f in [1,2,3]</pre>
<div ng-repeat="f in [1,2,3]">
item {{ f }}, index {{ $index }}
</div>
</div>
</div>
</div>
The popover is created and displayed. The title works correctly as well. However, ng-repeat is applied multiple times in any iteration:
As you can see, the iteration that should only include 3 elements in fact includes 3*3 elements. The directive creates popovers for exactly 3 elements, so I guess that's where my mistake lies. How can I make sure that within each popover, ng-repeat is only called once?

The problem
Since the popover-template element is already in the document when you bootstrapped the angular application (at page load), it has already been compiled once. The ng-repeat element is replaced with 3 new elements:
<!-- original -->
<div ng-repeat="f in [1,2,3]">item {{ f }}, index {{ $index }}</div>
<!-- replaced -->
<div ng-repeat="f in [1,2,3]">item 1, index 0</div>
<div ng-repeat="f in [1,2,3]">item 2, index 1</div>
<div ng-repeat="f in [1,2,3]">item 3, index 2</div>
When you compile it again in the link function, each of the 3 ng-repeats is triggered, making 3 identical copies, 9 total.
The solution
Keep your popover-template in a separate file so it is not compiled on page load. You can then load it with the $templateCache service.
In general, just make sure you don't compile your HTML multiple times.

Instead using the compiled html for the popover template, load the template using $http or templateCache.
The HTML:
<span popover>Click me</span>
<script type="text/ng-template" id="popover.html">
<div class="popover-template">
<div class="template-title">
<strong>{{ x.name }} and {{ y.name }}</strong>
</div>
<div class="template-content">
<div>
<pre>f in [1,2,3] track by $index</pre>
<div ng-repeat="f in [1,2,3]">
item {{ f }}, index {{ $index }}
</div>
</div>
</div>
</div>
</script>
The Javascript:
angular.module('app',[]).directive('popover', function($compile, $timeout, $templateCache){
return {
link: function(scope, element, attrs) {
$timeout(function() {
// grab the template (this is the catch)
// you can pass the template name as a binding if you want to be loaded dynamically
var tpl = angular.element($templateCache.get('popover.html'));
// grab popover parts of template
var template = {
title: tpl.find('.template-title').contents(),
content: tpl.find('.template-content').contents()
};
// render template with angular
var content = $compile(template.content)(scope);
var title = $compile(template.title)(scope);
$(element).popover({
html: true,
placement: "right",
content: content,
title: title
});
scope.$digest()
});
}
};
});
Also, I have made this plunker with an working example: http://embed.plnkr.co/IoIG1Y1DT8RO4tQydXnX/