4.8 Наследование сущностей в Doctrine

Типы наследований:

• MappedSuperclass
• SingleTable
• JoinedTable

Class A { prop 1; prop 2; }

Class B extends A { prop 3; prop 4; }

Class C extends A { prop 5; prop 6; }

• MappedSuperclass

Table B (1 | 2 | 3 | 4 )

Table C (1 | 2 | 5 | 6 )

• SingleTable

Table A (1 | 2 | 3 | 4 | 5 | 6 | Type [B/C] )

• JoinedTable

Table A (id | 1 | 2 | Type [B/C] )

Table B (id | 3 | 4 )

Table C (id | 5 | 6 )