```ruby
class TransactionSplit < ActiveRecord::Base
  belongs_to :transaction_record
end
```

Add TxSplit has_many PiePieces association
user
```ruby
class TransactionSplit < ActiveRecord::Base
  belongs_to :transaction_record
  has_many :pie_piece_transaction_splits
  has_many :pie_pieces, through: :pie_piece_transaction_splits
end
```
assistant