Created

Embed URL

HTTPS clone URL

SSH clone URL

You can clone with HTTPS or SSH.

Download Gist

Context & Roles

View context_and_roles.rb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
class TransferringMoney
include Context
 
def self.transfer source_account_id, destination_account_id, amount
source = Account.find(source_account_id)
destination = Account.find(destination_account_id)
TransferringMoney.new(source, destination).transfer amount
end
 
attr_reader :source_account, :destination_account
def initialize source_account, destination_account
@source_account = source_account.extend SourceAccount
@destination_account = destination_account.extend DestinationAccount
end
 
def transfer amount
in_context do
source_account.transfer_out amount
end
end
 
module SourceAccount
include ContextAccssor
 
def transfer_out amount
raise "Insufficient funds" if balance < amount
decrease_balance amount
context.destination_account.transfer_in amount
update_log "Transferred out", amount
end
end
 
module DestinationAccount
include ContextAccssor
 
def transfer_in amount
increase_balance amount
update_log "Transferred in", amount
end
end
end
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Something went wrong with that request. Please try again.