Caching AngularJS Templates

Question

Caching AngularJS Templates

My current challenge involves generating templatecache using gulp-angular-templatecache and merging it with an Angular script into a single JS file.

Here is the gulp task setup:

gulp.task('generatetemplatecache', function () {
    return gulp.src(['dev/app/**/*.tpl.html'])
    .pipe(minifyHTML({quotes: true}))
    .pipe(templateCache({ module:'templateCache', standalone:true }))
    .pipe(gulp.dest('public/app'));
});

This is a snippet of how the output appears:

var app = angular.module("app",['templateCache']);
angular.module("templateCache", []).run(["$templateCache", function($templateCache) {$templateCache.put("test.tpl.html","<!DOCTYPE html><html lang=\"en\"><head><meta charset=\"UTF-8\"><title>My Title</title></head><body></body></html>");
$templateCache.put("layout/popover.tpl.html","<h3 class=\"popover-title\">Click</h3><div class=\"popover-content\"><table style=\"width:600px\" class=\"table\"><tr ng-repeat=\"customer in customers\"><td>{{customer.name}}</td><td>{{customer.street}}</td></tr></table>ss</div>");

Despite the setup, I've encountered an issue where Angular does not load from the templatecache. Instead, it always retrieves the original template HTML file. This poses a problem when the HTML file is unavailable, causing display issues.

Why is this not working as expected? Could there be a mistake in my approach? Is the URL in the template cache relative to the index.html or the root domain?

javascript angularjs gulp

Answer 1

Answer №1

When creating your template file, one important aspect to verify is the correctness of the pathing.

For instance, in the setup of my application, the source code is structured in the following manner:

modules
   |---user
      |---user-controller.js
      |---user-service.js
      |---user.html

   |---navigation
      |---navigation-controller.js
      |---header.html
      |---footer.html

Therefore, in referencing my HTML files within the router or any directives using the templateUrl properties, I specify the path like this:

modules/user/user.html

Consequently, when I create my templateCache file in my Gulpfile, I set the root to 'modules' to ensure that each file is assigned a corresponding key in the templateCache with this path. For example:

gulp.task('templates', function () {
    gulp.src('./app/modules/**/*.html')
        .pipe(angularTemplatecache('templates.js', {
            standalone: true,
            root: "modules"
        }))
        .pipe(gulp.dest('./app/templates'));
});

If you are encountering issues with loading the templates, aside from other configuration settings being correct (such as correctly loading the templates.js file and including it as a module dependency in your app), the problem may lie in the pathing.

Answer 2

When creating your template file, one important aspect to verify is the correctness of the pathing.

For instance, in the setup of my application, the source code is structured in the following manner:

modules
   |---user
      |---user-controller.js
      |---user-service.js
      |---user.html

   |---navigation
      |---navigation-controller.js
      |---header.html
      |---footer.html

Therefore, in referencing my HTML files within the router or any directives using the templateUrl properties, I specify the path like this:

modules/user/user.html

Consequently, when I create my templateCache file in my Gulpfile, I set the root to 'modules' to ensure that each file is assigned a corresponding key in the templateCache with this path. For example:

gulp.task('templates', function () {
    gulp.src('./app/modules/**/*.html')
        .pipe(angularTemplatecache('templates.js', {
            standalone: true,
            root: "modules"
        }))
        .pipe(gulp.dest('./app/templates'));
});

If you are encountering issues with loading the templates, aside from other configuration settings being correct (such as correctly loading the templates.js file and including it as a module dependency in your app), the problem may lie in the pathing.

Answer 3

Answer №2

If you're looking to streamline your workflow, consider trying out a different gulp extension that can analyze your routes and directives, and automatically replace the templateUrl with the actual template content.

src
+-hello-world
  |-hello-world-directive.js
  +-hello-world-template.html

In the hello-world-directive.js file:

angular.module('test').directive('helloWorld', function () {
    return {
        restrict: 'E',
        // path to template file
        templateUrl: 'hello-world-template.html'
    };
});

hello-world-template.html contains:

<strong>
    Hello world!
</strong>

Make use of the gulpfile.js configuration:

var gulp = require('gulp');
var embedTemplates = require('gulp-angular-embed-templates');

gulp.task('js:build', function () {
    gulp.src('src/scripts/**/*.js')
        .pipe(embedTemplates())
        .pipe(gulp.dest('./dist'));
});

After running gulp-angular-embed-templates, the modified directive will look like this:

angular.module('test').directive('helloWorld', function () {
    return {
        restrict: 'E',
        template:'<strong>Hello world!</strong>'
    };
});

Answer 4

If you're looking to streamline your workflow, consider trying out a different gulp extension that can analyze your routes and directives, and automatically replace the templateUrl with the actual template content.

src
+-hello-world
  |-hello-world-directive.js
  +-hello-world-template.html

In the hello-world-directive.js file:

angular.module('test').directive('helloWorld', function () {
    return {
        restrict: 'E',
        // path to template file
        templateUrl: 'hello-world-template.html'
    };
});

hello-world-template.html contains:

<strong>
    Hello world!
</strong>

Make use of the gulpfile.js configuration:

var gulp = require('gulp');
var embedTemplates = require('gulp-angular-embed-templates');

gulp.task('js:build', function () {
    gulp.src('src/scripts/**/*.js')
        .pipe(embedTemplates())
        .pipe(gulp.dest('./dist'));
});

After running gulp-angular-embed-templates, the modified directive will look like this:

angular.module('test').directive('helloWorld', function () {
    return {
        restrict: 'E',
        template:'<strong>Hello world!</strong>'
    };
});

Caching AngularJS Templates

Answer №1

Answer №2

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