https://github.com/iltempo/sublime-text-2-hash-syntax (CMD+CTRL+H)
- turns :blah => true to blah: true
- for much rejoicing of time saved twiddling

Yeah, well that’s not very helpful if you’re trying to count the characters in a text area and Rails is putting in a newline when you don’t want one.

2.1.2 :003 > helper.text_area_tag('test','test')
=> "<textarea name=\"test\" id=\"test\">\ntest</textarea>"

HAML doesn’t do this

%textarea string    #=> "<textarea>string</textarea>"
%textarea= 'string' #=> "<textarea>string</textarea>"

I, [2015-01-22T07:15:59.225481 #30041]  INFO -- :   Rendered api/characters/_character.json.jbuilder (0.0ms)
I, [2015-01-22T07:15:59.225700 #30041]  INFO -- :   Rendered api/characters/_character.json.jbuilder (0.0ms)
I, [2015-01-22T07:15:59.225951 #30041]  INFO -- :   Rendered api/characters/_character.json.jbuilder (0.1ms)
I, [2015-01-22T07:16:00.561068 #30041]  INFO -- :   Rendered api/characters/_character.json.jbuilder (1307.7ms)
I, [2015-01-22T07:16:00.561527 #30041]  INFO -- :   Rendered api/characters/_character.json.jbuilder (0.1ms)
I, [2015-01-22T07:16:00.561772 #30041]  INFO -- :   Rendered api/characters/_character.json.jbuilder (0.1ms)
I, [2015-01-22T07:16:00.561993 #30041]  INFO -- :   Rendered api/characters/_character.json.jbuilder (0.1ms)
I, [2015-01-22T07:16:00.562210 #30041]  INFO -- :   Rendered api/characters/_character.json.jbuilder (0.0ms)
I, [2015-01-22T07:16:00.562425 #30041]  INFO -- :   Rendered api/characters/_character.json.jbuilder (0.1ms)

Completed 200 OK in 4100900.7ms (Views: 3288.4ms | ActiveRecord: 4097424.5ms)

Uglifier’s mangling messes with AngularJS. To turn it off you should do something like…

# config.assets.js_compressor = :uglifier
config.assets.js_compressor = Uglifier.new(mangle: false) if defined? Uglifier

I totally managed to mess up my Gemfile.lock file setting the versions of many gems to far higher versions than I’d intended. bundle update is bad, even if you set the version in your Gemfile the dependencies of thos gems are not versioned so precisely. I did this in a branch so fortunately the Gemfile.lock in my master branch is accurate.

git checkout master -- Gemfile.lock

That did the job. Then a bundle install puts the changes I’d made to my Gemfile into Gemfile.lock with the correct dependencies as per master. Phew.

If you upgrade to MacOSX Yosemite and get this

Robs-iMac:~ rl$ brew install

/usr/local/bin/brew: /usr/local/Library/brew.rb: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby: bad interpreter: No such file or directory

/usr/local/bin/brew: line 26: /usr/local/Library/brew.rb: Undefined error: 0

you need to do this

cd /usr/local/Library

git pull origin master

Then you’re good again.

Hmmmzzz..

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    /Users/rl/.rvm/rubies/ruby-2.1.2/bin/ruby extconf.rb 
creating Makefile

make "DESTDIR=" clean


Agreeing to the Xcode/iOS license requires admin privileges, please re-run as root via sudo.



make "DESTDIR="


Agreeing to the Xcode/iOS license requires admin privileges, please re-run as root via sudo.



make failed, exit code 69

Gem files will remain installed in /Users/rl/.rvm/gems/ruby-2.1.2@upgrade-ruby/gems/byebug-3.5.1 for inspection.
Results logged to /Users/rl/.rvm/gems/ruby-2.1.2@upgrade-ruby/extensions/x86_64-darwin-13/2.1.0-static/byebug-3.5.1/gem_make.out
An error occurred while installing byebug (3.5.1), and Bundler cannot continue.
Make sure that `gem install byebug -v '3.5.1'` succeeds before bundling.

You need to do sudo xcrun cc

..blah blah blah...

By typing 'agree' you are agreeing to the terms of the software license agreements. Type 'print' to print them or anything else to cancel, [agree, print, cancel] agree

If you’re used to rendering your JSON response via call to_json on a collection on an object then it really is as simple as adding the callback option to render. You must ensure the callback parameter on the client end is the correct parameter than you feed to the callback option in your controller. This allows your JSON to be server without or without wrapping the response with a callback function depending on whether you include the callback parameter.

class Api
  
  def index
    respond_to do |format|
        format.json do
          render :json => Thing.all.to_json, :callback => params[:callback]
        end
    end
  end

end

However, if you use JBuilder or any other JSON template engine then you’ll need to do things slightly differently. Here There is no need to change your controller method at but instead you can wrap the json repsonse in an after_filter which is a little cleaner.

class Api < ApplicationController

  after_filter :wrap_response_with_callback

  def index
    respond_to do |format|
        format.json
    end
  end

  private

  def wrap_response_with_callback
    if request.get? && params[:callback] && params[:format].to_s == 'json'
      response['Content-Type'] = 'application/javascript'
      response.body = "%s(%s)" % [params[:callback], response.body]
    end
  end

end