boost/pfr
2
0
Fork 0
mirror of https://github.com/boostorg/pfr.git synced 2026-01-19 04:22:13 +00:00
Code Issues Projects Releases Wiki Activity

more polishings for the docs

Browse Source
This commit is contained in:
Antony Polukhin
2020-10-05 20:14:26 +03:00
parent c32fb3271f
commit dd0d53eded
1 changed files with 10 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
doc/pfr.qbk
View File

@@ -26,7 +26,7 @@ using auth_info_tuple = std::tuple<
std::time_t
>;
struct auth_info_aggreagte {
struct auth_info_aggregate {
std::int64_t id;
std::int64_t session_id;
std::int64_t source_id;
@@ -34,7 +34,7 @@ struct auth_info_aggreagte {
};
```
Definition via structure is much more clear. Same story with usages: `return std::get<1>(value);` vs. `return value.session_id;`.
Definition via [@https://en.cppreference.com/w/cpp/language/aggregate_initialization aggregate initializable] structure is much more clear. Same story with usages: `return std::get<1>(value);` vs. `return value.session_id;`.
Another advantage of aggregates is a more efficient copy, move construction and assignments.
@@ -77,17 +77,18 @@ Depending on the usage of PFR in your DB wrapper users code will look differentl
[[
```
user_info retrieve_friend(std::string_view name) {
auto tuple_info = db::one_row_as<std::int64_t, std::string, std::int64_t>(
std::tuple<<std::int64_t, std::string, std::int64_t>> info
= db::one_row_as<std::int64_t, std::string, std::int64_t>(
"SELECT id, name, github_stars, email FROM user_infos WHERE name=$0",
name
);
auto friend_info = ask_user_for_friend(
user_info{
std::move(std::get<0>(tuple_info)),
std::move(std::get<1>(tuple_info)),
std::move(std::get<2>(tuple_info)),
std::move(std::get<3>(tuple_info)),
std::move(std::get<0>(info)),
std::move(std::get<1>(info)),
std::move(std::get<2>(info)),
std::move(std::get<3>(info)),
}
);
@@ -106,12 +107,12 @@ user_info retrieve_friend(std::string_view name) {
][
```
user_info retrieve_friend(std::string_view name) {
const auto info = db::one_row_as<user_info>(
user_info info = db::one_row_as<user_info>(
"SELECT id, name, github_stars, email FROM user_infos WHERE name=$0",
name
);
auto friend_info = ask_user_for_friend(info);
auto friend_info = ask_user_for_friend(std::move(info));
db::insert(
"INSERT INTO user_infos(id, name, github_stars, email) VALUES ($0, $1, $2, $3)",