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Rafał Lisowski rlisowski

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  • Warsaw, Poland
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@ProGM
ProGM / arel_cheatsheet_on_steroids.md
Last active April 19, 2024 04:06
Arel cheatsheet on Steroids

Arel Cheatsheet on Steroids

A (more) complete cheatsheet for Arel, including NamedFunction functions, raw SQL and window functions.

Tables

posts = Arel::Table.new(:posts)
posts = Post.arel_table # ActiveRecord

Table alias




  


  




    


          
    

      

        
        

          

              @joshteng
          

          

            
                joshteng
                / Using_Vagrant.markdown
            
            

              Last active
              July 28, 2016 06:15
            

          

        

      

        

  

      

    
Download and Install Vagrant http://www.vagrantup.com/ and VirtualBox https://www.virtualbox.org/ or VMware before beginning


#Set up Vagrant
*this guide assumes the use of Mac OS X Mountain Lion on local machine and Ubuntu 12.04 LTS x64 on Vagrant box. It is compatible with many other distros but hasn't been tested.


##Step 1: Make and run box


vagrant init
vagrant box add <path to box directory or name according to https://vagrantcloud.com/>
vagrant up



  


  




    


          
    

      

        
        

          

              @denji
          

          

            
                denji
                / nginx-tuning.md
            
            

              Last active
              May 3, 2024 03:57
            

              
                NGINX tuning for best performance
              
          

        

      

        

  

      

    
Moved to git repository: https://github.com/denji/nginx-tuning


NGINX Tuning For Best Performance


For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.


Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.


You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.



  


  




    


          
    

      

        
        

          

              @glucero
          

          

            
                glucero
                / ruby_archive.rb
            
            

              Last active
              December 20, 2015 17:09
            

              
                self extracting ruby archiver
              
          

        

      

        

  

    
    


        



  


  

        

          
          #!/usr/bin/env ruby
        

        

          
          

        

        

          
          class RubyArchive
        

        

          
          

        

        

          
            require 'rubygems/package'
        

        

          
            require 'zlib'
        

        

          
          

        

        

          
            attr_reader :path
        

        

          
          

        

        

          
            class Archive
        

  





    


  




    


          
    

      

        
        

          

              @DeadlyBrad42
          

          

            
                DeadlyBrad42
                / Neat Emoticons
            
            

              Last active
              October 22, 2021 15:41
            

              
                Not that we needed all that for the trip, but once you get locked into a serious emoticon collection, the tendency is to push it as far as you can.
              
          

        

      

        

  

    
    


        



  


  

        

          
          Neat Emoticons & Unicode Characters!
        

        

          
          

        

        

          
          (•_• )
        

        

          
          ( •_•)
        

        

          
          ( •_•)>⌐■-■
        

        

          
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              @jrochkind
          

          

            
                jrochkind
                / gist:2161449
            
            

              Created
              March 22, 2012 18:40
            

              
                A Capistrano Rails Guide
              
          

        

      

        

  

      

    
A Capistrano Rails Guide


by Jonathan Rochkind, http://bibwild.wordpress.com


why cap?


Capistrano automates pushing out a new version of your application to a deployment location.


I've been writing and deploying Rails apps for a while, but I avoided using Capistrano until recently. I've got a pretty simple one-host deployment, and even though everyone said Capistrano was great, every time I tried to get started I just got snowed under not being able to figure out exactly what I wanted to do, and figured I wasn't having that much trouble doing it "manually".