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@Jacyking 看看这个问题 |
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请提供完整demo |
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#include <ormpp/mysql.hpp>
#include <ormpp/dbng.hpp>
#include <string>
#include <optional>
struct user {
std::optional<int> id;
std::optional<std::string> user_name;
std::optional<std::string> nick_name;
std::optional<std::string> password;
std::optional<std::string> phone;
std::optional<int> gender;
std::optional<int> status;
std::optional<std::string> birthday;
std::optional<std::string> avatar_url;
std::optional<std::string> description;
std::optional<std::string> create_time;
};
REGISTER_AUTO_KEY(user, id)
REFLECTION(user, id, user_name, nick_name, password, phone, gender, status, birthday, avatar_url, description, create_time)
int main() {
ormpp::dbng<ormpp::mysql> mysql;
// 然后是连接数据库的代码，mysql.connect(...);
user u;
u.user_name = "2";
u.status = 2;// 从enum class改成了int
u.gender = 2;// 从enum class改成了int
u.birthday = DateTimeUtil::now("%Y-%m-%d");
cout << mysql.insert(u);// 结果为INT_MIN，即插入失败
return 0;
} |
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status和gender字段虽然不为null，但有默认值，不给定也会插入失败，这是为啥？（user的所有数据成员都是
std::optional）Beta Was this translation helpful? Give feedback.
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