autocompletion not working well on NetBeans for Ruby - ruby-on-rails

I'm using Netbeans 8 for Ruby development, I installed the plugins for Ruby development, from the community.
I'm working on a project, not on standalone files.
The problem that I'm facing, is: the autocomplete doesn't work all the time. Some methods don't appear in the list of autocomplete.
For instance if I type inside a class definition the beginning of a method like:
The only way to get the autocomplete working is to precede the method by it's class or object, like this:
I have also to say, that this problem occurs especially when I'm inside a class definition.
Do you have an idea, this autocompletion feature for Ruby isn't working well and how to fix it?

Related

undefined method `stylesheet_pack_tag'

I'm relatively new to using Ruby on Rails and I've been trying to use ActiveAdmin for my project. However, despite even starting my Rails project from scratch again and trying to update anything related to the problem nothing I've been doing seems to work.
I don't know why, but my project simply refuses to accept stylesheet_pack_tag as a method.

Add a basic UI layer to existing ruby app

First, I am fairly new to Ruby/RoR and so you'll have to forgive me for any wrong terminology, but hopefully I'll get my point across.
I built an ruby app that I am needing to add an extremely simple UI layer using rails. Read up on a previous post of mine that explains the project thoroughly to give you good an idea of what it does. Specifically take a look at the tree outline that I pasted in so you see the existing file structure for the project.
What I need to know, is how to convert this existing project into a rails app? My experience in building something with rails has always started out with rails new app_name, but never anything like this. Any tips would be appreciated.

I saw your parser script, and it is not a daemon (a program that keeps running indefinitely in the background), right?
If I'm right, then you have several options:
The easiest option
Just build a rails application using rails new app_name, and inside some controller action, make a system call to run your script
class SomeController
def some_action
succeeded = system(:ruby, '/path/to/main.rb', '/path/to/some.txt')
# Do some rendering stuff here based on the result of the system call
end
end
This approach is somehow nasty for me, and it's not performant because each system call reads your ruby script and compiles or interprets it then runs it.
The harder option
Refactor your script so that it's features can be wrapped into a gem.
Then you install that gem, require it in your rails app, and use it.
I saw your original ruby script is almost there, it shouldn't be that hard to make it become a gem.

Rails is just "something" on top of Ruby. Especially, you can use any plain ruby objects inside of Rails, anywhere, and this is nothing unusual (google "PORO").
In your case, I would make a simple Rails app in the way you have mentioned yourself with rails new. Then trivially refactor your existing code until you have a simple, standalone class that does what you need to be done but takes its input/output from simple ruby data structures (i.e., method arguments, return values, no global state, no file operations). Then you can use that class from inside your Rails controller (taking input from a HTML form, rendering output to HTML), and also from inside your script (reading input from a file or STDIN, rendering output to STDOUT).
Where you put that class is up to you. In the MVC paradigm, it is not "C" or "V", and one could argue about whether it's "M". So put it into app/models/ or lib/, whatever you like more.

These were great answers and I'm sure they would have worked perfectly. However, they were a little bit more complex than what I was looking for.
What I ultimately ended up doing was just cd into the directory above where the ruby app was located and then just simply ran rails new app_name. Rails will ask if you'd like to overwrite any files that exist already. From there I just integrated my script into the controller actions and created the views.

Cloud 9 IDE Ruby on Rails Already Implemented Coffee

Okay, so I am new to Ruby, let alone Ruby on Rails. I am using this online IDE called Cloud9 and or other wise known as C9. Anyways once you generate all your files you are given a Coffeescript file. I used this code, however it is not working. I have already installed the package through the node manager. However, when I used the console.log method for testing it did work.

Any TextMate trick/bundle to lookup Rails documentation?

I know this is common in 'full featured' IDE's and not text editors but TextMate walks a unique line with its many bundles... I'm wondering if there is an easy way to, say, click on a Ruby or Rails class or method and have TextMate (or shell) take me to the definition or some documentation?

There's one built into the rails bundle (^h) which uses api dock.
Another pretty nice way of doing it is using the rails os x dictionary, but it has a few downsides and I'm not sure what version of rails it's using (I'm pretty sure it's not rails 3, but I haven't checked).

Ctrl-H is an excellent option to learn about Ruby or Rails API.
But this doesn't work for any other methods or class that may be defined or included in your project. For those I've written a TextMate Bundle command (you can easily assign it to Ctrl+] for example) that lookup for the definition of the class or method under the caret and displays it in a tooltip, along with the file name and the line where it was find.
Check it out: Add a shortcut to TextMate to lookup a class or method definition in a tooltip
Hope you'll find it useful ;)

Rails 2.3.9, adding ActiveScaffold, getting in `alias_method': undefined method `number_of_pages' for class `Paginator'

I have AS (as a plugin) working in another app just fine (I dont remember this
issue...) - its also using Rails 2.3.9, on same dev box.
Now trying to add it to a new app and getting this error when running
the webrick, script/server:
/Users/kimptoc/.rvm/gems/ruby-1.8.7-p302/gems/activesupport-2.3.9/lib/
active_support/core_ext/module/aliasing.rb:33:in `alias_method':
undefined method `number_of_pages' for class `Paginator' (NameError)
from /Users/kimptoc/.rvm/gems/ruby-1.8.7-p302/gems/
activesupport-2.3.9/lib/active_support/core_ext/module/aliasing.rb:
33:in `alias_method_chain'
from /Users/kimptoc/Documents/ruby/borisbikestats/vendor/plugins/
active_scaffold/lib/extensions/paginator_extensions.rb:9
I couldn't find any previous references to this error.
Embarassingly I dont know which version of AS I am using successfully... it says 1.2RC1 in the CHANGELOG file, but I seem to remember trying a few of the forks...(is there somewhere I can see which fork is in use...). I have tried using the the 'main' activescaffold in the new project, but it fails as above, but so does using the same plugin that is in the working project :(
Thanks in advance for any pointers as to what I am doing wrong.
Thanks,
Chris
PS Just realised that new Rails was using Rails 3 and old/working one was 2.3.9. It seems you need to use an alternate branch of AS for Rails 3, like this : https://github.com/vhochstein/active_scaffold/wiki

This is just a guess, but built in pagination was removed in Rails 2 as I recall, and you needed to install the classic_pagination plugin to get that functionality back.
I only used ActiveScaffold once, but the error there says paginator_extensions.rb ... it's probably monkey patching the old Rails paginator? Therefore the class exists but the number_of_pages method doesn't.

Resources