add AccountTransaction class for easier access to Transaction data from an Account's list of transactions

lib/gnucash.rb

@@ -1,4 +1,5 @@
 require "gnucash/account"
+require "gnucash/account_transaction"
 require "gnucash/book"
 require "gnucash/transaction"
 require "gnucash/value"

lib/gnucash/account.rb

@@ -28,23 +28,17 @@ module Gnucash
       prefix + name
     end
 
-    def add_transaction(txn, value, description)
+    def add_transaction(act_txn)
-      @transactions << {
+      @transactions << act_txn
-        txn: txn,
-        value: value,
-        description: description,
-      }
     end
 
     def finalize
-      @transactions.sort! do |a, b|
+      @transactions.sort! { |a, b| a.date <=> b.date }
-        a[:txn].date <=> b[:txn].date
-      end
       balance = Value.new(0)
-      @balances = @transactions.map do |txn_hash|
+      @balances = @transactions.map do |act_txn|
-        balance += txn_hash[:value]
+        balance += act_txn.value
         {
-          date: txn_hash[:txn].date,
+          date: act_txn.date,
           value: balance,
         }
       end

lib/gnucash/account_transaction.rb

@@ -0,0 +1,14 @@
+module Gnucash
+  class AccountTransaction
+    attr_accessor :value
+
+    def initialize(real_txn, value)
+      @real_txn = real_txn
+      @value = value
+    end
+
+    def method_missing(*args)
+      @real_txn.send(*args)
+    end
+  end
+end

lib/gnucash/transaction.rb

@@ -18,7 +18,7 @@ module Gnucash
         unless account
           raise "Could not find account with ID #{account_id} for transaction #{@id}"
         end
-        account.add_transaction(self, value, description)
+        account.add_transaction(AccountTransaction.new(self, value))
         {
           account_id: account_id,
           value: value,