Loading templates (partials) in Angular.js on the fly

Question

Loading templates (partials) in Angular.js on the fly

Is there a way to dynamically load templates into an Angular app based on a parameter within a ng-foreach loop?

<body ng-app="MyApp" ng-controller="ExampleController as example">
   <div  ng-repeat="item in example.items" class="someClass" ng-switch="item.type">
      <!-- Load different templates depending on the value of item.type -->
   </div>
</body>

Check out this Fiddle for reference: https://jsfiddle.net/rsvmar2n/1/

Any suggestions on how to achieve this? I tried using ng-switch: https://jsfiddle.net/rsvmar2n/6/

I'm looking for a more efficient, "angular" approach to implementing this feature.

Edit: Ideally, I would like to avoid making an http request for every partial template that is loaded (as in the case of ngInclude).

Edit2: Ultimately decided to use ng-include along with cached templates. Check out the updated Fiddle here: https://jsfiddle.net/rsvmar2n/24/

javascript angularjs

Answer 1

Answer №1

If you want to optimize performance by using cached templates in ng-include, you can create a function that returns the id of the template. An illustrative example demonstrates how this can be implemented.

The controller function handling the template could resemble:

$scope.getTemplate = function(item) {
    switch(item.type)
  {
    case "type1":
        return 'testtype1.html';
    default:
        return 'testtype2.html';
  }
}

Here is an example of the html structure:

<script type="text/ng-template" id="testtype1.html">
  <p>This is the template 1</p>
</script>

<script type="text/ng-template" id="testtype2.html">
  <p>This is the template 2</p>
</script>

<body ng-app="MyApp" ng-controller="ExampleController">
  <div ng-repeat="item in items" class="someClass">
    <!-- Load different templates based on item.type -->
    <div ng-include="getTemplate(item)"></div>
  </div>
</body>

Answer 2

If you want to optimize performance by using cached templates in ng-include, you can create a function that returns the id of the template. An illustrative example demonstrates how this can be implemented.

The controller function handling the template could resemble:

$scope.getTemplate = function(item) {
    switch(item.type)
  {
    case "type1":
        return 'testtype1.html';
    default:
        return 'testtype2.html';
  }
}

Here is an example of the html structure:

<script type="text/ng-template" id="testtype1.html">
  <p>This is the template 1</p>
</script>

<script type="text/ng-template" id="testtype2.html">
  <p>This is the template 2</p>
</script>

<body ng-app="MyApp" ng-controller="ExampleController">
  <div ng-repeat="item in items" class="someClass">
    <!-- Load different templates based on item.type -->
    <div ng-include="getTemplate(item)"></div>
  </div>
</body>

Answer 3

Answer №2

To implement this functionality, you can define a custom directive like so:

app.directive('myCustomDirective', function(){
  return {
    restrict: 'E',
    scope: {item: '=item'},
    templateUrl: function(element, attrs){
      if (!attrs.type) return 'default.html';
      return attrs.type + '.html';
    }
  } 
});

This will allow you to create different templates such as type1.html, type2.html, etc.

In your controller, simply use the directive like this:

<my-custom-directive ng-repeat="item in items" item="item", type="item.type">

Answer 4

To implement this functionality, you can define a custom directive like so:

app.directive('myCustomDirective', function(){
  return {
    restrict: 'E',
    scope: {item: '=item'},
    templateUrl: function(element, attrs){
      if (!attrs.type) return 'default.html';
      return attrs.type + '.html';
    }
  } 
});

This will allow you to create different templates such as type1.html, type2.html, etc.

In your controller, simply use the directive like this:

<my-custom-directive ng-repeat="item in items" item="item", type="item.type">

Answer 5

Answer №3

By utilizing ng-include, you can conveniently allocate the source dynamically - for instance, in your main template:

<div ng-include src="templateName"></div>

Here, templateName corresponds to a variable name in your controller.

$scope.templateName = 'path/to/your/template.html';

Any modifications to this value during a digest cycle will automatically update the displayed content.

Answer 6

By utilizing ng-include, you can conveniently allocate the source dynamically - for instance, in your main template:

<div ng-include src="templateName"></div>

Here, templateName corresponds to a variable name in your controller.

$scope.templateName = 'path/to/your/template.html';

Any modifications to this value during a digest cycle will automatically update the displayed content.

Answer 7

Answer №4

By using different conditions, you have the option to load either single or multiple templates.

Utilize ng-switch

ng-if="item.type=='type2'||item.type=='type3'"

LoadMultipleTemplate for loading multiple templates based on your selections.

LoadSingleTemplate to load a single template.

Edit

Using ng-include, dynamic views can be loaded.

In the provided example, there are no specific conditions set. However, it is possible to add another ng-repeat within ng-repeat and perform actions based on the inner loop. Make sure to structure the JSON object accordingly for the inner ng-repeat.

loadViews

<div  ng-repeat="item in example.items" class="someClass" >

         <ng-include src="item.type + '.html'">{{item.type}}</ng-include>

</div>

Answer 8

By using different conditions, you have the option to load either single or multiple templates.

Utilize ng-switch

ng-if="item.type=='type2'||item.type=='type3'"

LoadMultipleTemplate for loading multiple templates based on your selections.

LoadSingleTemplate to load a single template.

Edit

Using ng-include, dynamic views can be loaded.

In the provided example, there are no specific conditions set. However, it is possible to add another ng-repeat within ng-repeat and perform actions based on the inner loop. Make sure to structure the JSON object accordingly for the inner ng-repeat.

loadViews

<div  ng-repeat="item in example.items" class="someClass" >

         <ng-include src="item.type + '.html'">{{item.type}}</ng-include>

</div>

Loading templates (partials) in Angular.js on the fly

Answer №1

Answer №2

Answer №3

Answer №4

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