storage_t::pragma_t::user_version

int user_version();

void user_version(int value);

Gets and sets user_version PRAGMA value from sqlite database.

Return value

First overload returns PRAGMA user_version.

Second overload returns nothing. It just calls PRAGMA user_version = %value%.

Example

struct Entry {
    int id;
    std::string uniqueColumn;
    std::shared_ptr<std::string> nullableColumn;
};
auto storage = make_storage("unique.sqlite",
                            make_table("unique_test",
                                       make_column("id",
                                                   &Entry::id,
                                                   primary_key(),
                                                   autoincrement()),
                                       make_column("unique_text",
                                                   &Entry::uniqueColumn,
                                                   unique()),
                                       make_column("nullable_text",
                                                   &Entry::nullableColumn)));

std::cout << "user version = " << storage.pragma.user_version() << std::endl;
storage.pragma.user_version(storage.pragma.user_version() + 1);
std::cout << "new user version = " << storage.pragma.user_version() << std::endl;