#include #include #include #include #include #include #include namespace test_range_select_from { struct Person { sqlgen::PrimaryKey id; std::string first_name; std::string last_name; int age; }; TEST(sqlite, test_range_select_from) { const auto people1 = std::vector( {Person{ .id = 0, .first_name = "Homer", .last_name = "Simpson", .age = 45}, Person{.id = 1, .first_name = "Bart", .last_name = "Simpson", .age = 10}, Person{.id = 2, .first_name = "Lisa", .last_name = "Simpson", .age = 8}, Person{ .id = 3, .first_name = "Maggie", .last_name = "Simpson", .age = 0}}); using namespace sqlgen; const auto people2 = sqlgen::sqlite::connect() .and_then(sqlgen::write(std::ref(people1))) .and_then(select_from("first_name"_c) | order_by("id"_c)) .value(); using namespace std::ranges::views; const auto first_names = internal::collect::vector(people2 | transform([](const auto& _r) { return rfl::get<"first_name">(_r.value()); })); EXPECT_EQ(first_names.at(0), "Homer"); EXPECT_EQ(first_names.at(1), "Bart"); EXPECT_EQ(first_names.at(2), "Lisa"); EXPECT_EQ(first_names.at(3), "Maggie"); } } // namespace test_range_select_from