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--------- Blocked statement and count
SELECT count(current_statement_in_blocking_process), db.current_statement_in_blocking_process FROM (
SELECT DISTINCT blocked_locks.pid     AS blocked_pid,
         blocked_activity.usename  AS blocked_user,
         blocking_activity.query   AS current_statement_in_blocking_process
   FROM  pg_catalog.pg_locks         blocked_locks
    JOIN pg_catalog.pg_stat_activity blocked_activity  ON blocked_activity.pid = blocked_locks.pid
    JOIN pg_catalog.pg_locks         blocking_locks
        ON blocking_locks.locktype = blocked_locks.locktype
        AND blocking_locks.DATABASE IS NOT DISTINCT FROM blocked_locks.DATABASE

ludyna

class Some
end 

obj = Some.new

class << obj
  def hello 
    puts 'hello'
  end 
end 

ludyna

# 
# Example: Nested DCI Contexts
# Blog post: https://www.ludyna.com/oleh/dci-in-scale-free-fractal-way
#
# Note that Ruby language while supporting multiple programming paradigms does not 
# natively support DCI paradigm. I am using classes and modules to express Context, 
# Data and Roles concepts from DCI.

module GameWorldContext

ludyna

#
# Oleh's tmux config
#
# INSTALLATION NOTES 
# 1. Install Homebrew (https://github.com/mxcl/homebrew)
# 2. brew install zsh
# 3. Install OhMyZsh (https://github.com/robbyrussell/oh-my-zsh)
# 4. brew install reattach-to-user-namespace --wrap-pbcopy-pbpaste && brew link reattach-to-user-namespace
# 5. Install iTerm2
# 6. In iTerm2 preferences for your profile set:

ludyna

# DCI EXAMPLE IN RUBY (with some prototype elements)
# Blog post: https://www.ludyna.com/oleh/dci-example-in-ruby
# 
# More info: 
#
#   Creator of MVC & DCI, Trygve Reenskaug: DCI: Re-thinking the foundations of 
#   object orientation and of programming
#   http://vimeo.com/8235394
#
#   James Coplien: Why DCI is the Right Architecture for Right Now