mysql setting a uniqe constraint on std::string type about ngrest-db

[loentar]

ngrest-db converts standard C++ types to best match to SQL types. By default std::string is mapped to varchar(256) for mysql.

You can change mapped SQL type by defining "type" metacomment:

https://github.com/loentar/ngrest-db/blob/master/examples/example1/src/datatypes.h#L21

So, adding this line before that field should solve the problem:

// *type: VARCHAR(255)

[oldmammuth]

Thank you!
This is a much better solution than to recompile the code. However I thought of writing that big stuff because it's a bit awkward that standard strings can't be make unique out-of-the-box without defining the type limitation... I was just proposing a way to have it all work out-of-the-box.
Anyway, this solution actually fits better my way of coding, because I hadn't notice on can set the type conversion... This is actually very useful,because I have some geospatial data in another project that I can pass to a postgres db with postgis extensions.
Thank you very much for your explanation and prompt anwer!

[loentar]

Agree regarding unique constraint must work out of the box. Fix committed.