yyandrew

SECTION1 - Rails
        1.Enumerable inject用法:User.limit(2).inject({}) {|h, u| h[u.id]=u.email;h} #return {1=>"test1@test.com", 2=>"test2@test.com"};
        2.查看所有precompile的assets文件 y Rails.application.config.assets.paths
        3..gitignore没有作用的解决方法
          git rm . -r --cached
          git add .
          git commit -m "fixed untracked files"
        4.install fish shell on ubuntu
          #install fish shell
          sudo apt-add-repository ppa:fish-shell/release-2

yyandrew

// get chart object in javascript
var chart = $("#chart_container_id").highcharts();
// fire click event of first point
chart.series[0].data[0].firePointEvent('click');

yyandrew

1.cap staging deploy -s branch=1626d55d3da9
2.cap staging deploy:rollback #rollback to the previous version
3.添加新的任务-显示服务器当前的代码版本号。在config/deploy.rb文件添加如下代码
  namespace :deploy do
    desc 'Show deployed version'
    task :revision do
      on roles(:app) do
        execute "echo current version is------------------"
        execute "cat #{current_path}/REVISION"
        execute "echo end----------------"

yyandrew

def run_in_browser(js, html)
  jsfile = Tempfile.new(['js', '.js'])
  jsfile.write(js)
  jsfile.close

  htmlfile = Tempfile.new(['test', '.html'])
  htmlfile.write(html)
  htmlfile.close

  Phantomjs.run(jsfile.path, htmlfile.path)

yyandrew

TODO List
2014-10-12 13:04:37 ----------------------------------------
[_] 50% About vimoutliner
	[X] Learn vimoutliner
	[_] Content code issue of vimoutliner when use otl2html.py
NEXT ACTIONS
	[_] 16%Lenrn rails
		[X] Try swaggerui gem
		[_] Learn docker-http://blog.gemnasium.com/post/65599561888/rails-meets-docker
		[_] Learn chef http://learn.getchef.com/

yyandrew

# return boolean but not MatchData
!!website.match(Regexp.new(sites))

yyandrew

      params.require(:article).permit(:title, :content, :description, :images_attributes => [:title, :image])

yyandrew

Image.where("image is not ?", nil).each do |image| image.image.recreate_versions! if image.image? end

yyandrew

#create capistrano task to run rake task of rails
# add below code to deploy.rb
desc "recreate version of all images."
task :recreate_version_of_images do
  on roles(:app) do
    within "#{current_path}" do
      with rails_env: :production do
        execute :rake, "images:recreate_version"
      end
    end

yyandrew

a.sort # sort by asc
a.sort { |x,y| y <=> x } # sort by desc