Sophisticated layering of partials and templates

Question

Sophisticated layering of partials and templates

I am facing a challenge in handling intricate nesting of templates (also known as partials) within an AngularJS application.

To illustrate my predicament, I have created an image:

As depicted, this application has the potential to become quite complex with numerous nested models.

This is a single-page application that loads an index.html containing a div element in the DOM with the ng-view attribute.

Regarding circle 1, there is a Primary navigation that loads relevant templates into the ng-view. I achieve this by passing $routeParams to the main app module. Here is a snippet from my app:

angular.module('myApp', []).
    config(['$routeProvider', function($routeProvider) {
        $routeProvider.                     
            when("/job/:jobId/zones/:zoneId", { controller: JobDetailController, templateUrl: 'assets/job_list_app/templates/zone_edit.html' }).
            when("/job/:jobId/initial_inspection", { controller: JobDetailController, templateUrl: 'assets/job_list_app/templates/initial_inspection.html' }).
            when("/job/:jobId/zones/:zoneId/rooms/:roomId", { controller: JobDetailController, templateUrl: 'assets/job_list_app/templates/room_edit.html' })       

    }]);

In circle 2, the template loaded into the ng-view contains an additional sub-navigation. This sub-nav must then load templates below it - but given the usage of ng-view, I am unsure of the approach to take.

While I can include additional templates within the initial one, these templates are expected to be quite intricate. I prefer to keep all templates separate to facilitate easier updates and prevent dependencies on parent templates for accessing their children.

In circle 3, complexity increases further. It is possible that sub-navigation templates may have a 2nd sub-navigation requiring its own templates to be loaded into the area indicated in circle 4

How should one structure an AngularJS app to manage such complex nesting of templates while ensuring they remain independent?

javascript angularjs

Answer 1

Answer №1

UPDATE: Be sure to check out AngularUI's latest project aimed at solving this issue

If you want to handle subsections easily, you can utilize strings in ng-include like so:

<ul id="subNav">
  <li><a ng-click="subPage='section1/subpage1.htm'">Sub Page 1</a></li>
  <li><a ng-click="subPage='section1/subpage2.htm'">Sub Page 2</a></li>
  <li><a ng-click="subPage='section1/subpage3.htm'">Sub Page 3</a></li>
</ul>
<ng-include src="subPage"></ng-include>

Alternatively, you can create an object if you have links to sub pages scattered across your content:

$scope.pages = { page1: 'section1/subpage1.htm', ... };

<ul id="subNav">
  <li><a ng-click="subPage='page1'">Sub Page 1</a></li>
  <li><a ng-click="subPage='page2'">Sub Page 2</a></li>
  <li><a ng-click="subPage='page3'">Sub Page 3</a></li>
</ul>
<ng-include src="pages[subPage]"></ng-include>

You also have the option to utilize $routeParams

$routeProvider.when('/home', ...);
$routeProvider.when('/home/:tab', ...);
$scope.params = $routeParams;

<ul id="subNav">
  <li><a href="#/home/tab1">Sub Page 1</a></li>
  <li><a href="#/home/tab2">Sub Page 2</a></li>
  <li><a href="#/home/tab3">Sub Page 3</a></li>
</ul>
<ng-include src=" '/home/' + tab + '.html' "></ng-include>

You can also include an ng-controller at the top level of each partial

Answer 2

UPDATE: Be sure to check out AngularUI's latest project aimed at solving this issue

If you want to handle subsections easily, you can utilize strings in ng-include like so:

<ul id="subNav">
  <li><a ng-click="subPage='section1/subpage1.htm'">Sub Page 1</a></li>
  <li><a ng-click="subPage='section1/subpage2.htm'">Sub Page 2</a></li>
  <li><a ng-click="subPage='section1/subpage3.htm'">Sub Page 3</a></li>
</ul>
<ng-include src="subPage"></ng-include>

Alternatively, you can create an object if you have links to sub pages scattered across your content:

$scope.pages = { page1: 'section1/subpage1.htm', ... };

<ul id="subNav">
  <li><a ng-click="subPage='page1'">Sub Page 1</a></li>
  <li><a ng-click="subPage='page2'">Sub Page 2</a></li>
  <li><a ng-click="subPage='page3'">Sub Page 3</a></li>
</ul>
<ng-include src="pages[subPage]"></ng-include>

You also have the option to utilize $routeParams

$routeProvider.when('/home', ...);
$routeProvider.when('/home/:tab', ...);
$scope.params = $routeParams;

<ul id="subNav">
  <li><a href="#/home/tab1">Sub Page 1</a></li>
  <li><a href="#/home/tab2">Sub Page 2</a></li>
  <li><a href="#/home/tab3">Sub Page 3</a></li>
</ul>
<ng-include src=" '/home/' + tab + '.html' "></ng-include>

You can also include an ng-controller at the top level of each partial

Answer 3

Answer №2

Currently, only one ngView directive is allowed. To work around this limitation, I make use of nested directive controls. This enables setting up templating and inheriting (or isolating) scopes among them. Additionally, I utilize ng-switch or ng-show to determine which controls to display based on the input from $routeParams.

UPDATE Here is some pseudo-code example illustrating what I mean with a nested sub navigation.

This is the main app page:

<!-- primary nav -->
<a href="#/page/1">Page 1</a>
<a href="#/page/2">Page 2</a>
<a href="#/page/3">Page 3</a>

<!-- display the view -->
<div ng-view>
</div>

Directive for the sub navigation:

app.directive('mySubNav', function(){
    return {
        restrict: 'E',
        scope: {
           current: '=current'
        },
        templateUrl: 'mySubNav.html',
        controller: function($scope) {
        }
    };
});

Template for the sub navigation:

<a href="#/page/1/sub/1">Sub Item 1</a>
<a href="#/page/1/sub/2">Sub Item 2</a>
<a href="#/page/1/sub/3">Sub Item 3</a>

Template for a main page (from primary nav):

<my-sub-nav current="sub"></my-sub-nav>

<ng-switch on="sub">
  <div ng-switch-when="1">
      <my-sub-area1></my-sub-area>
  </div>
  <div ng-switch-when="2">
      <my-sub-area2></my-sub-area>
  </div>
  <div ng-switch-when="3">
      <my-sub-area3></my-sub-area>
  </div>
</ng-switch>

Controller for a main page (from the primary nav):

app.controller('page1Ctrl', function($scope, $routeParams) {
     $scope.sub = $routeParams.sub;
});

Directive for a Sub Area:

app.directive('mySubArea1', function(){
    return {
        restrict: 'E',
        templateUrl: 'mySubArea1.html',
        controller: function($scope) {
            //controller for your sub area
        }
    };
});

Answer 4

Currently, only one ngView directive is allowed. To work around this limitation, I make use of nested directive controls. This enables setting up templating and inheriting (or isolating) scopes among them. Additionally, I utilize ng-switch or ng-show to determine which controls to display based on the input from $routeParams.

UPDATE Here is some pseudo-code example illustrating what I mean with a nested sub navigation.

This is the main app page:

<!-- primary nav -->
<a href="#/page/1">Page 1</a>
<a href="#/page/2">Page 2</a>
<a href="#/page/3">Page 3</a>

<!-- display the view -->
<div ng-view>
</div>

Directive for the sub navigation:

app.directive('mySubNav', function(){
    return {
        restrict: 'E',
        scope: {
           current: '=current'
        },
        templateUrl: 'mySubNav.html',
        controller: function($scope) {
        }
    };
});

Template for the sub navigation:

<a href="#/page/1/sub/1">Sub Item 1</a>
<a href="#/page/1/sub/2">Sub Item 2</a>
<a href="#/page/1/sub/3">Sub Item 3</a>

Template for a main page (from primary nav):

<my-sub-nav current="sub"></my-sub-nav>

<ng-switch on="sub">
  <div ng-switch-when="1">
      <my-sub-area1></my-sub-area>
  </div>
  <div ng-switch-when="2">
      <my-sub-area2></my-sub-area>
  </div>
  <div ng-switch-when="3">
      <my-sub-area3></my-sub-area>
  </div>
</ng-switch>

Controller for a main page (from the primary nav):

app.controller('page1Ctrl', function($scope, $routeParams) {
     $scope.sub = $routeParams.sub;
});

Directive for a Sub Area:

app.directive('mySubArea1', function(){
    return {
        restrict: 'E',
        templateUrl: 'mySubArea1.html',
        controller: function($scope) {
            //controller for your sub area
        }
    };
});

Answer 5

Answer №3

For a potential solution to your problem, consider utilizing this library:

This library seems like it aligns with your requirements and offers a more straightforward approach compared to ui-router. Take a look at the demo site for reference:

JavaScript Code Snippet:

$routeSegmentProvider.

when('/section1',          's1.home').
when('/section1/:id',      's1.itemInfo.overview').
when('/section2',          's2').

segment('s1', {
    templateUrl: 'templates/section1.html',
    controller: MainCtrl}).
within().
    segment('home', {
        templateUrl: 'templates/section1/home.html'}).
    segment('itemInfo', {
        templateUrl: 'templates/section1/item.html',
        controller: Section1ItemCtrl,
        dependencies: ['id']}).
    within().
        segment('overview', {
            templateUrl: 'templates/section1/item/overview.html'}).

Main HTML Structure:

<ul>
    <li ng-class="{active: $routeSegment.startsWith('s1')}">
        <a href="/section1">Section 1</a>
    </li>
    <li ng-class="{active: $routeSegment.startsWith('s2')}">
        <a href="/section2">Section 2</a>
    </li>
</ul>
<div id="contents" app-view-segment="0"></div>

Nested HTML Structure:

<h4>Section 1</h4>
Contents of Section 1.
<div app-view-segment="1"></div>

Answer 6

For a potential solution to your problem, consider utilizing this library:

This library seems like it aligns with your requirements and offers a more straightforward approach compared to ui-router. Take a look at the demo site for reference:

JavaScript Code Snippet:

$routeSegmentProvider.

when('/section1',          's1.home').
when('/section1/:id',      's1.itemInfo.overview').
when('/section2',          's2').

segment('s1', {
    templateUrl: 'templates/section1.html',
    controller: MainCtrl}).
within().
    segment('home', {
        templateUrl: 'templates/section1/home.html'}).
    segment('itemInfo', {
        templateUrl: 'templates/section1/item.html',
        controller: Section1ItemCtrl,
        dependencies: ['id']}).
    within().
        segment('overview', {
            templateUrl: 'templates/section1/item/overview.html'}).

Main HTML Structure:

<ul>
    <li ng-class="{active: $routeSegment.startsWith('s1')}">
        <a href="/section1">Section 1</a>
    </li>
    <li ng-class="{active: $routeSegment.startsWith('s2')}">
        <a href="/section2">Section 2</a>
    </li>
</ul>
<div id="contents" app-view-segment="0"></div>

Nested HTML Structure:

<h4>Section 1</h4>
Contents of Section 1.
<div app-view-segment="1"></div>

Answer 7

Answer №4

Dealing with nested views in Angular was a challenge for me as well.

After discovering ui-router, I realized that I would never go back to using the default routing functionality in Angular.

Here is a sample application showcasing multiple levels of view nesting:

app.config(function ($stateProvider, $urlRouterProvider,$httpProvider) {
// set default route to view1
$urlRouterProvider.otherwise("/view1");

$stateProvider
    .state('view1', {
        url: '/view1',
        templateUrl: 'partials/view1.html',
        controller: 'view1.MainController'
    })
    .state('view1.nestedViews', {
        url: '/view1',
        views: {
            'childView1': { templateUrl: 'partials/view1.childView1.html' , controller: 'childView1Ctrl'},
            'childView2': { templateUrl: 'partials/view1.childView2.html', controller: 'childView2Ctrl' },
            'childView3': { templateUrl: 'partials/view1.childView3.html', controller: 'childView3Ctrl' }
        }
    })

    .state('view2', {
        url: '/view2',
    })

    .state('view3', {
        url: '/view3',
    })

    .state('view4', {
        url: '/view4',
    });
});

This example demonstrates 4 main views (view1, view2, view3, view4), with view1 containing 3 child views.

Answer 8

Dealing with nested views in Angular was a challenge for me as well.

After discovering ui-router, I realized that I would never go back to using the default routing functionality in Angular.

Here is a sample application showcasing multiple levels of view nesting:

app.config(function ($stateProvider, $urlRouterProvider,$httpProvider) {
// set default route to view1
$urlRouterProvider.otherwise("/view1");

$stateProvider
    .state('view1', {
        url: '/view1',
        templateUrl: 'partials/view1.html',
        controller: 'view1.MainController'
    })
    .state('view1.nestedViews', {
        url: '/view1',
        views: {
            'childView1': { templateUrl: 'partials/view1.childView1.html' , controller: 'childView1Ctrl'},
            'childView2': { templateUrl: 'partials/view1.childView2.html', controller: 'childView2Ctrl' },
            'childView3': { templateUrl: 'partials/view1.childView3.html', controller: 'childView3Ctrl' }
        }
    })

    .state('view2', {
        url: '/view2',
    })

    .state('view3', {
        url: '/view3',
    })

    .state('view4', {
        url: '/view4',
    });
});

This example demonstrates 4 main views (view1, view2, view3, view4), with view1 containing 3 child views.

Answer 9

Answer №5

Instead of using nested ng-views, consider utilizing ng-include.

http://docs.angularjs.org/api/ng/directive/ngInclude
http://plnkr.co/edit/ngdoc:example-example39@snapshot?p=preview

In my index page, I utilize ng-view. However, for sub pages requiring nested frames, I opt for ng-include. I modified the demo dropdown to a link with ng-click functionality. Within the function, I set $scope.template = $scope.templates[0]; or $scope.template = $scope.templates[1];

$scope.clickToSomePage= function(){
  $scope.template = $scope.templates[0];
};

Answer 10

Instead of using nested ng-views, consider utilizing ng-include.

http://docs.angularjs.org/api/ng/directive/ngInclude
http://plnkr.co/edit/ngdoc:example-example39@snapshot?p=preview

In my index page, I utilize ng-view. However, for sub pages requiring nested frames, I opt for ng-include. I modified the demo dropdown to a link with ng-click functionality. Within the function, I set $scope.template = $scope.templates[0]; or $scope.template = $scope.templates[1];

$scope.clickToSomePage= function(){
  $scope.template = $scope.templates[0];
};

Answer 11

Answer №6

It's exciting to learn that Angular's ui-router allows for nested views. I haven't had the opportunity to explore it yet, but from what I've seen, it seems very promising.

Discover more about Angular's ui-router here!

Answer 12

It's exciting to learn that Angular's ui-router allows for nested views. I haven't had the opportunity to explore it yet, but from what I've seen, it seems very promising.

Discover more about Angular's ui-router here!

Sophisticated layering of partials and templates

Answer №1

UPDATE: Be sure to check out AngularUI's latest project aimed at solving this issue

Answer №2

Answer №3

Answer №4

Answer №5

Answer №6

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