I'm going to use PaymentTransaction as the example as I work through the conversion. This way I can note tips and tricks to save some future headache.

1. Change class PaymentTransaction to class PaymentTransaction extends Model
2. Remove any private class variables associated with db columns (e.g. $created).
3. For PaymentTransaction many of the class variables were named with underscores in the way they are in the databases.
   • If this is not the case, the getters and setters need to be updated to reference the appropirate column variables. (e.g. $this->poNumber would need to become $this->po_number when the db column is named po_number.
     • My suggestion would be to keep all of the getters and setters, at least at this point. This will maintain compatability with existing code. I also personally like the getters and setters.
   • The next thing I did was run the tests. This caught variables in the FactoryMuffin object that were mis-named. (e.g. PaymentTransaction factory used invoiceId and needed to be changed to invoice_id. This is more than just in the FactoryMuffin definition, because there was some custom construction of these factories in various test suites.) 4.