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Improve one_to_many example

This commit is contained in:
vabenil 2022-11-05 14:17:47 +02:00
parent f070c08ff8
commit d252b39a6e
1 changed files with 12 additions and 7 deletions
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19
database_generation.d
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@ -833,19 +833,24 @@ string toFieldName(T)(string s, bool isPlural = false)
} }
/++ /++
generates get functions for a one-to-many relationship generates get functions for a one-to-many relationship with the form
`T2 get_<t2>(T1 row, Database db)` and
`TabResultSet!T1 get_<t1>(T2 row, Database db)`
Example:
```d ```d
Struct Role { int id; } Struct Role { int id; }
struct User { struct User {
@ForeignKey!(Role.id, "") int role_id; @ForeignKey!(Role.id, "") int role_id;
} }
mixin(one_to_many!(User.role_id), "role", "users"); mixin(one_to_many!(User.role_id, "role", "users"));
/* void main()
this will generate the following functions {
Role get_role(User role, Database db) {...} Database db = ...
TabResultSet!User get_users(Role row, Database db) {...} User user = db.find!User(1);
*/ Role role = user.get_role(db);
auto users = role.get_users(db);
}
``` ```
if t2 or t1 are set as null they will be infered from either if t2 or t1 are set as null they will be infered from either
the `DBName` attribute or from the name of the the Table the `DBName` attribute or from the name of the the Table