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Add pagination to database queries

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This commit is contained in:
jacqueline
2023-05-16 14:11:38 +10:00
parent 785349eb5b
commit d71f726c42
6 changed files with 325 additions and 150 deletions
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src/main/app_console.cpp
+15 -14
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@@ -176,15 +176,15 @@ int CmdDbSongs(int argc, char** argv) {
return 1;
}
database::Result<database::Song> res =
sInstance->database_->GetSongs(20).get();
std::unique_ptr<database::Result<database::Song>> res(
sInstance->database_->GetSongs(5).get());
while (true) {
std::unique_ptr<std::vector<database::Song>> r(res.values());
for (database::Song s : *r) {
for (database::Song s : res->values()) {
std::cout << s.tags().title.value_or("[BLANK]") << std::endl;
}
if (res.HasMore()) {
res = sInstance->database_->GetMoreSongs(10, res.continuation()).get();
if (res->next_page()) {
auto continuation = res->next_page().value();
res.reset(sInstance->database_->GetPage(&continuation).get());
} else {
break;
}
@@ -211,17 +211,18 @@ int CmdDbDump(int argc, char** argv) {
std::cout << "=== BEGIN DUMP ===" << std::endl;
database::Result<std::string> res = sInstance->database_->GetDump(20).get();
std::unique_ptr<database::Result<std::string>> res(
sInstance->database_->GetDump(5).get());
while (true) {
std::unique_ptr<std::vector<std::string>> r(res.values());
if (r == nullptr) {
break;
}
for (std::string s : *r) {
for (std::string s : res->values()) {
std::cout << s << std::endl;
}
if (res.HasMore()) {
res = sInstance->database_->GetMoreDump(20, res.continuation()).get();
if (res->next_page()) {
auto continuation = res->next_page().value();
res.reset(
sInstance->database_->GetPage<std::string>(&continuation).get());
} else {
break;
}
}