I want to create a site using assemble, yeoman, and angularJS.
The plan is that assemble will handle content and AngularJS will handle dynamic content via a REST API. Are the two compatible, is this a good choice of architecture? My concern is with the templating engine Assemble uses (HandleBars) and whether it is compatible with AngularJS as they both seem to use {{}}. I have only started investigating but am struggling to find examples of people using a similar architecture. How do i scaffold with Yeoman?
I'm doing something similar and to handle the issue with the template delimiters I use the angular interpolateProvider to change the delimiters for angular.
var app = angular.module('app', []).config(function ($interpolateProvider) {
$interpolateProvider.startSymbol('{%');
$interpolateProvider.endSymbol('%}');
});
I'm not sure if you can configure Yeoman to automatically use the new delimiters when running some of the scaffolds, but I hope this helps separate your templates from the assemble templates.
I've done similar for a client for a retail site, to create a basis, custom CMS.
Originally I had the idea that all the items for sale (the data i.e model) would be represented via the data files - a mix of .json and yaml. (At least the client could edit the yaml file with some ease as it is sort of human readable).
A later improvement was to allow the client to edit the stock via a webpage - rather than editing the data files directly - Angular was ideal for this to have a webapp that basically allowed editing the data / upload and transform images, etc via a much nicer interface.
Assemble uses Handlebars (among others) to render templates, so you can use its syntax to escape Angular templates in a .hbs file, this way:
\{{ qty * cost | currency }}
Related
I am new to AngularJS.I have two questions.
Is it possible to use JSP pages instead of HTML in AngularJS.
Is it possible to create a web application using AngularJS without webservices (for fetching data from DB) and use HTTP servlet for that purpose
Is it possible to use JSP pages instead of HTML in AngularJS.
Even if you use JSP the final output will be HTML so you can use JSP in AngularJS but JSP files are mainly used to render the frontend with data that you can do using HTML only in AngularJS.
Is it possible to create a web application using AngularJS without web services (for fetching data from DB) and use HTTP servlet for that purpose
Whether you use plain Servlet or any framework that creates REST APIs, it will be HTTP calls only.
(This is a newbie question which applies equally to all front-end MVVM frameworks. I'll answer it for the general good.)
AngularJS is a front-end framework which runs in the browser. It relies on a server delivering the content (HTML templates, CSS and JS sources) to the browser.
What you use as a server, is entirely up to you. It depends on whether you need server-side dynamic content.
If none is required in that area, you can use a static HTTP server like LightHTTP, or plain old apache, or nginx, or anything else to deliver the AngularJS site to the browser.
But in most you will have some server interaction (i.e. storing / querying stuff in a database, or communication / synchronization with other users, etc). The common approach for that is to deliver HTML/CSS/JS statically and add a bunch of REST interfaces. Flask and Tornado are popular server choices for that, or stuff like spray.IO / akka.http for higher traffic volumes.
In specific cases, you may want to work with pre-rendered HTML templates (usually because you want to dynamically exclude parts of pages for security/user role reasons). Then you need a server-side framework with template rendering. Django, JSP, ASP, pick your favourite.
It seems like you are asking how to use AngularJs in a JavaEE application. And yes it is possible. Only your index.jsp will be in jsp, and all you other views will be in html.
You can then use http requests to fetch data through your servlets.
it can be useful. here are scenarios:
you want to save ram, cpu for mobile phones or machines that doesn't have lots of power. you can partially render page in jsp and keep only minimal in angular.
your team is traditionally jsp heavy and you want to use them and gradually transfer to angular. eg... for i18n rendering jsp seems far better. note that i18n may not add lots of values in angular and you may not want to throw up existing code in jsp.
I have been noticing strong views in stackoverflow and they seem to dismiss everything that doesn't fit in their utopian all new cutting edge. all the angular projects I worked had heavy dose of legacy pages using jsp and it doesn't make sense to rewrite everything from scratch or lay off whole team and start hiring from scratch. and thus, yes, jsp makes sense with angular.
I am new to Ember, but I have extensive Angular experience.
I am trying to create a single page web application with ember.
My app will be pretty extensive and large, so I would like to separate the page into multiple views.
Every Ember demo and tutorial creates an application only using the index.html page.
In Angular, we have a view attribute (ng-view) and use includes with partials. (ng-include)
Does ember have an equivalent? If so, can you direct me to any documentation or demo that uses it?
PS - I know I can dynamically build an HTML file with GRUNT by taking smaller HTML files and concat/uglifying them together, but is that the best practice or does ember have a view and include system equivalent.
I need to add new features to an already existing application. The application is built using Lithium and jQuery. The features that needs to be included have a complex view which allow users to analyze data and perform CRUD functionality. I won't go into details about the features here, but after working on a few simple Angular tutorials and side projects, I know that using AngularJS to create this view will make my life a lot more easier than creating the view using jQuery.
Over the course of the next few months we may convert the entire app to AngularJS.
I am uncertain about where I should place the Angular files and how to setup routing. How can I integrate AngularJS to Lithium so that part of the Lithium routing works and part of it is handled by AngularJS.
I also found this answer on stackoverflow but it doesn't mention folder structures or how to integrate Angular with Lithium. I think this link mentioned in the answers is supposed to have what I am looking for but it doesn't seem to exist anymore.
The link is down, but you can clone the source repository and run it yourself here: https://github.com/nateabele/li3-angular-presentation
Regarding organization, the simplest way would be to place the directory structure for your Angular components inside of /webroot. The more advanced (and in my opinion better) way would be to make them two separate applications: an AngularJS UI app, and a backend API in Li3 that it talks to.
I am starting to develop a business spa application (mobile/desktop web app) with Play Framework 2 and AngularJS. Right now I am tending to go with following solution:
Play behaves as a RESTful application
Play also pre-processes partials
AngularJS handles the rest
My arguments for pre-processing partials are:
Play can remove parts of a partial for a more compact mobile view
Different user roles see more/less content of the partial
Correct language will be loaded into the partial
Are there any disadvantages with this approach? Do you think this would be the best solution for the project's requirements?
Server-side templating is usually what you want to get rid of when building an SPA. In general this should work, but there are a couple of disadvantages:
You are mixing two template languages, Play and AngularJS, so you must be careful not create an unmaintainable mess
Your display logic will also be distributed or duplicated between Angular and Play; in a pure RESTful approach Play would mostly be concerned about access control and JSON (input, output, validation)
You must create a route for every partial instead of just using the assets route
Server side templating slows down compilation speed
Returning different content depending on roles and desktop/mobile might mess with Angular's $template cache
Different user roles see more/less content of the partial
This should be handled by Angular IMHO, Play would just make sure to only serve the appropriate JSON to the right users.
Correct language will be loaded into the partial
How would you reuse Play's Lang in Angular? Build an inline variable? Again, just load it via JSON when the app bootstraps.
I am currently using the Backbone philosophy which involves dust.js for template style. Recently I came across AngularJS, which extends the HTML syntax with custom elements and attributes.
Cons of Backbone+dust.js environment:
Upgrading components is time consuming.
Module specification and identification is not easy.
If I move my functionality to AngularJS will it be helpful or does it feel the same?
Can anyone explain to me what the major differences among these two libs are, as they seem similar to some extent?
dust.js is purely a templating module. So, it allows the combination of json with a template to deliver html output.
Angular.js is client side framework that allows binding of logic to variables defined in a template (your page).
So, with dust.js you are responsible for deciding when to run the json through the template. Typically you feed in the json on the server (or client) and ask it to render the results.
With angular.js when the model (the json) changes the framework re-renders as appropriate. Triggers for that change could be user actions (such as filling a form in) or it could be due to loading some fresh json from a service.
Typically you would use angular.js if you want a single page JS app (think gmail). dust.js is perhaps more akin to a traditional approach with multi pages with content driven by passing in json.
You could even use the both of them in tandem - server side rendering using dust.js with dynamic client side logic in angular.js.