Class: Pluto::Connecter

Inherits:
Object
  • Object
show all
Includes:
LogUtils::Logging
Defined in:
lib/pluto/connecter.rb

Overview

DB Connecter / Connection Manager

lets you establish connection

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Connecter

Returns a new instance of Connecter.



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# File 'lib/pluto/connecter.rb', line 15

def initialize
  # do nothing for now
end

Instance Method Details

#connect(config = {}) ⇒ Object 



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# File 'lib/pluto/connecter.rb', line 23

def connect( config={} )

  if config.empty?   # use/try DATABASE_URL from environment

    logger.debug "ENV['DATBASE_URL'] - >#{ENV['DATABASE_URL']}<"

    db = URI.parse( ENV['DATABASE_URL'] || 'sqlite3:///pluto.db' )

    if db.scheme == 'postgres'
      config = {
        adapter:  'postgresql',
        host:     db.host,
        port:     db.port,
        username: db.user,
        password: db.password,
        database: db.path[1..-1],
        encoding: 'utf8'
      }
    else   # assume sqlite3
      config = {
        adapter:  db.scheme,       # sqlite3
        database: db.path[1..-1]   # pluto.db (NB: cut off leading /, thus 1..-1)
      }
    end
  end  # if config.nil?

  logger.info 'db settings:'
  logger.info config.pretty_inspect

  ### for dbbrowser and other tools add to ActiveRecord

  if ActiveRecord::Base.configurations.nil?   # todo/check: can this ever happen? remove?
     logger.debug "ActiveRecord configurations nil - set to empty hash"
     ActiveRecord::Base.configurations = {}  # make it an empty hash
  end

  ## todo/fix: remove debug? option - why? why not?
  ##    (just) use logger level eg. logger.debug
  if debug?
    logger.debug 'ar configurations (before):'
    logger.debug ActiveRecord::Base.configurations.pretty_inspect
  end

  # note: for now always use pluto key for config storage
  configs = ActiveRecord::Base.configurations.to_h.reject { |db_config| db_config.env_name == 'pluto' }
  configs['pluto'] = config

  ActiveRecord::Base.configurations = configs

  if debug?
    logger.debug 'ar configurations (after):'
    logger.debug ActiveRecord::Base.configurations.pretty_inspect
  end


  # for debugging - disable for production use
  if debug?
    ActiveRecord::Base.logger = Logger.new( STDOUT )
  end

  ActiveRecord::Base.establish_connection( config )
end

#debug? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pluto/connecter.rb', line 19

def debug?()  Pluto.config.debug?;  end