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 11

def initialize
  # do nothing for now
end

Instance Method Details

#connect!(config = nil) ⇒ Object 



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# File 'lib/pluto/connecter.rb', line 25

def connect!( config = nil )

  if config.nil?   # 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?

  puts 'db settings:'
  pp config

  ### for dbbrowser and other tools add to ActiveRecord
  
  if ActiveRecord::Base.configurations.nil?   # todo/check: can this ever happen? remove?
     puts "ActiveRecord configurations nil - set to empty hash"
     ActiveRecord::Base.configurations = {}  # make it an empty hash
  end

  if debug?
    puts 'ar configurations (before):'
    pp ActiveRecord::Base.configurations
  end
  
  # note: for now always use pluto key for config storage
  ActiveRecord::Base.configurations['pluto'] = config

  if debug?
    puts 'ar configurations (after):'
    pp ActiveRecord::Base.configurations
  end


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


  ActiveRecord::Base.establish_connection( config )

  # first time? - auto-run db migratation, that is, create db tables
  unless ActivityDb::Models::Activity.table_exists?
    ActivityDb::CreateDb.new.up
  end

  unless Models::Feed.table_exists?
    CreateDb.new.up  
  end
end

#debug=(value) ⇒ Object 



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# File 'lib/pluto/connecter.rb', line 16

def debug=(value)
  @debug = value
end

#debug? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pluto/connecter.rb', line 20

def debug?
  @debug || false
end