fix code for mtg

Create a table that shows how each field in the domain classes corresponds to a field in the underlying table. You should have a column for the domain class field name, its type, the table field name, its SQL type, and then one more column with notes explaining if there are problems. If a field exists in the domain class but not the table, note that. Ask the domain class designers where the data comes from, and put that in your note column. If a field exists in a table but not the domain class, ask the domain class designers why it was omitted and put that in the notes. Also write down any conflicts in type. Post the table to Piazza, BEFORE next Monday, and then if there are no objections, fix any problems.