opal/vienna

Client-side MVC framework for Opal

Adam Beynon

@adambeynon

but I get around that by doing Vienna = Fire

Can Edremitoglu

@cantonic

ah ok. then everything is fine :) i am really excited to get started and to show it to my team

Adam Beynon

@adambeynon

@cantonic give me a ping if you need any pointers etc

we also have the opal/opal room which is a bit more active too

Can Edremitoglu

@cantonic

thank you for the offer @adambeynon . I just got rid of backbone and got opal-rails v 0.6.3 working (yay)

yeah i just joined the other room

it's a pretty strange and awesome feeling to write jquery as ruby code and see it really working :)

Can Edremitoglu

@cantonic

@adambeynon do you have a preferred directory structure? I created the directories models, views and controllers in app/assets/javascripts/vienna/… and then stumbled over opal/opal-rails#16 which says that you can use the views directory of rails for your templates. which dir structure do you prefer when using vienna with rails?

Can Edremitoglu

@cantonic

i just noticed that there is no Controllers class in vienna. I wonder what the ‘C' in ‘MVC’ stands for.

Adam Beynon

@adambeynon

@cantonic usually I create controllers as PORO (plain old ruby objects)

they do any ajax stuff

and create the views

I usually put stuff into app/assets/javascripts/project_name/views

I dont namespace classes inside my opal code

so all views, models are top level

Can Edremitoglu

@cantonic

@adambeynon but doesn’t that lead to duplicated model names? My activerecord model is called Calendar as well as the vienna model. Do you have an example of a controller maybe? that would be helpful

Can Edremitoglu

@cantonic

btw: using opal-rails and vienna both from github doesn’t work. dependency issue with opal-jquery

Elia Schito

@elia

@cantonic opal-rails master uses opal master and it's probably better to use opal-jquery master too

Can Edremitoglu

@cantonic

thank you @elia . are there any concerns about using the master branch for production? sure, a stable version is always better, but there seem to be quite a few updates since the stable version

Elia Schito

@elia

@cantonic yeah, all things considered master has a huge load of fixes
Also the build is practically always green and you can be sure that it’s master that will get the most attention for bugs

Can Edremitoglu

@cantonic

@elia the latest build is failing :)

Can Edremitoglu

@cantonic

hey guys, I need your help please. first I wasn’t able to install vienna because i got this error when doing bundle install:

Could not find gem 'vienna (>= 0) ruby' in git://github.com/opal/vienna.git (at master). Source does not contain any versions of 'vienna (>= 0) ruby’

. Then I noticed, that the gem’s name has changed from vienna to opal-vienna. now I am getting Could not find gem 'opal (~> 0.5.0) ruby', which is required by gem 'opal-sprockets (>= 0) ruby', in any of the sources.. this is what I put into my Gemfile following #16 :

gem 'opal-rails',     github: 'opal/opal-rails'
gem 'opal',           github: 'opal/opal'
gem 'opal-sprockets', github: 'opal/opal-sprockets'
gem 'opal-jquery',    github: 'opal/opal-jquery'
gem 'opal-vienna',    github: 'opal/vienna'

Can Edremitoglu

@cantonic

alright, changed the Gemfile and could install everything:

gem 'opal-rails',     github: 'opal/opal-rails'
gem 'opal-jquery',    github: 'opal/opal-jquery'
gem 'opal-vienna',    github: 'opal/vienna'
gem 'opal-haml',      github: 'opal/opal-haml'

now I am receiving this error in the js console:

GET http://localhost:3000/assets/opal.map 500 (Internal Server Error)
GET http://localhost:3000/assets/opal-jquery.map 500 (Internal Server Error)

excerpt from development.log:

TypeError (no implicit conversion of nil into String):
  /Users/cantonic/.rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/json/common.rb:155:in `initialize'
  /Users/cantonic/.rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/json/common.rb:155:in `new'
  /Users/cantonic/.rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/json/common.rb:155:in `parse'
  opal (0.7.0.beta3) lib/opal/sprockets/server.rb:39:in `call'

Can Edremitoglu

@cantonic

ok, i realise this has nothing to do with opal

i guess it has to do with coffee-rails-source-maps gem

Can Edremitoglu

@cantonic

alright. got opal-rails working. I defined my first vienna model and getting Uncaught NameError: uninitialized constant Object::Vienna

adding //= require vienna to app/assets/javascripts/application.js solved it. maybe that should be mentioned in the README.

Can Edremitoglu

@cantonic

sorry, but I need help again :( I read that vienna is not supporting not-hash style routes. This is a bit of a problem since I need vienna to run on /calendars instead of /#/calendars because I am using rails. any ideas for a workaround?

Can Edremitoglu

@cantonic

@adambeynon can you help on this maybe when you are online?

Can Edremitoglu

@cantonic

i just found Vienna::HistoryRouter, but can’t get it working.

Can Edremitoglu

@cantonic

I fear that I have to drop that and continue using backbone :(

Can Edremitoglu

@cantonic

After fighting with BackboneJS for quite some time, the wish for a better “getting started” guide for opal-vienna rises. @adambeynon I will surely give opal-vienna another, but will probably need your help. We could take my try on opal-vienna as a chance to write some getting started documentation and note down problems I will encounter as an opal beginner. What do you think?

Jared White

@jaredcwhite

I have to say, as someone who tried out Vienna briefly, wrote part of an Opal-based framework that I never released, and then recently wrote another part of one from scratch for an actual client project, I'm increasingly becoming a fan of just building POROs (Plain Old Ruby Objects). You can create an MVC framework yourself out of thin air just by writing a few simple objects and connecting them using those patterns. I find the vast majority of client-side frameworks are way-ay-ay-ay too complicated. Backbone is nice in the sense that it's fairly simple to understand, but in many cases to me it feels like it's simply trying to abstract away Javascript ugliness (something that just isn't required when coding in clean, sensible Ruby!) Using opal-jquery plus opalerb files takes care of events and templating just fine. Anyway, I do look forward to seeing Fire come out but for now I'm content just using my own little home-brewed MVC codebase. :)

Adam Beynon

@adambeynon

@jaredcwhite agreed. fire/vienna end up being not a lot more than just conventions for models and views for me. Fire actually has less client side code than vienna atm

of course, ruby modules makes things like view bindings really easy

but also very optional

Can Edremitoglu

@cantonic

convinced. i will put my current work with backbone on hold and trz rebuilding it with opal.

Elia Schito

@elia

@jaredcwhite @adambeynon :+1:

Jared White

@jaredcwhite

This message was deleted

Jose Bencosme

@jlbenc

Hello, all. How's the RubyFire project coming along? Very excited about this idea.

Loïc Boutet

@loicboutet

any news one "ruby fire" ?

Elia Schito

@elia

@loicboutet I think you need to ask @AstonJ if he has any insights

AstonJ

@AstonJ

I don’t unfortunately - haven’t had a chance to speak to @adambeynon for a while - perhaps you can give us an update Adam? :P

Martin Becker

@Thermatix

@all I have a request, can I borrow the code for Route class for use in my router library?

If I'm allowed I'd like to know the author so I can give credit

Elia Schito

@elia

@Thermatix https://github.com/opal/vienna#license

the author is @adambeynon btw

Martin Becker

@Thermatix

is that a yes?

Elia Schito

@elia

yes, MIT license is yes :), but please read the license in order to grasp how it works exaclty

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