Module: ActiveRecord::ConnectionHandling

Defined in:
lib/active_record/connection_adapters/redshift_adapter.rb

Overview

:nodoc:

Constant Summary collapse

RS_VALID_CONN_PARAMS = 
[:host, :hostaddr, :port, :dbname, :user, :password, :connect_timeout,
:client_encoding, :options, :application_name, :fallback_application_name,
:keepalives, :keepalives_idle, :keepalives_interval, :keepalives_count,
:tty, :sslmode, :requiressl, :sslcompression, :sslcert, :sslkey,
:sslrootcert, :sslcrl, :requirepeer, :krbsrvname, :gsslib, :service]

Instance Method Summary collapse

Instance Method Details

#redshift_connection(config) ⇒ Object

Establishes a connection to the database that’s used by all Active Record objects



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# File 'lib/active_record/connection_adapters/redshift_adapter.rb', line 28

def redshift_connection(config)
  conn_params = config.symbolize_keys

  conn_params.delete_if { |_, v| v.nil? }

  # Map ActiveRecords param names to PGs.
  conn_params[:user] = conn_params.delete(:username) if conn_params[:username]
  conn_params[:dbname] = conn_params.delete(:database) if conn_params[:database]

  # Forward only valid config params to PG::Connection.connect.
  conn_params.keep_if { |k, _| RS_VALID_CONN_PARAMS.include?(k) }

  # The postgres drivers don't allow the creation of an unconnected PG::Connection object,
  # so just pass a nil connection object for the time being.
  ConnectionAdapters::RedshiftAdapter.new(nil, logger, conn_params, config)
end