Crylia/EinsatzplanQT
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Update DBPlan.cpp

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This commit is contained in:
Chris-bot374
2024-07-06 10:09:05 +02:00
committed by GitHub
parent 85d1601889
commit 8837e0d61d
1 changed files with 70 additions and 13 deletions
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83
DBHandler/DBPlan.cpp
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@@ -1,12 +1,3 @@
/* TO DO
deleteVeranstalter() und deleteVeranstaltung() Foreignkey Constraint fixen
Funktion getEinsatzplan() erstellen : psql prompt: SELECT tag, u.anfangszeit, u.endzeit, o.ort, o.name, v.name FROM Veranstalter_Veranstaltung_Uhrzeit LEFT JOIN Veranstalter v ON Veranstalter_Veranstaltung_Uhrzeit.veranstalter_ID = v.ID
LEFT JOIN Uhrzeit u ON Veranstalter_Veranstaltung_Uhrzeit.uhrzeit_ID = u.ID
LEFT JOIN Veranstaltung o ON Veranstalter_Veranstaltung_Uhrzeit.veranstaltung_ID = o.ID
ORDER BY tag, uhrzeit_ID;
*/
#include "DBPlan.hpp"
DBPlan::DBPlan(std::string connStr) : DBHandler(connStr) {
@@ -119,8 +110,24 @@ void DBPlan::meldeGesund(std::string id) {
void DBPlan::deleteVeranstalterForeign(std::string id) {
try {
pqxx::work worker(connectionObject);
std::string query =
"UPDATE Veranstalter_Veranstaltung_Uhrzeit SET Veranstalter_ID = NULL WHERE Veranstalter_ID = $1;";
pqxx::result response = worker.exec_params(query, id);
worker.commit();
}
catch (const std::exception& e) {
std::cerr << "Error: " << e.what() << std::endl;
}
}
void DBPlan::deleteVeranstalter(std::string id) {
deleteVeranstalterForeign(id);
try {
pqxx::work worker(connectionObject);
std::string query =
@@ -135,17 +142,30 @@ void DBPlan::deleteVeranstalter(std::string id) {
}
void DBPlan::deleteVeranstaltung(std::string id) {
void DBPlan::deleteVeranstaltungForeign(std::string id) {
try {
pqxx::work worker(connectionObject);
std::string query =
"DELETE FROM Veranstaltung WHERE ID = $1;";
"UPDATE Veranstalter_Veranstaltung_Uhrzeit SET Veranstaltung_ID = NULL WHERE Veranstalter_ID = $1;";
pqxx::result response = worker.exec_params(query, id);
worker.commit();
}
catch (const std::exception& e) {
std::cerr << "Error: " << e.what() << std::endl;
}
}
void DBPlan::deleteVeranstaltung(std::string id) {
deleteVeranstaltungForeign(id);
try {
pqxx::work worker(connectionObject);
std::string query =
"DELETE FROM Veranstaltung WHERE ID = $1";
pqxx::result response = worker.exec_params(query, id);
worker.commit();
}
catch (const std::exception& e) {
std::cerr << "Error: " << e.what() << std::endl;
@@ -418,3 +438,40 @@ void DBPlan::createPlan() {
std::vector<std::string> DBPlan::getPlan() {
try {
std::vector<std::string> plan;
pqxx::work worker(connectionObject);
std::string query =
"SELECT tag, u.anfangszeit, u.endzeit, o.ort, o.name, v.name, v.ID FROM Veranstalter_Veranstaltung_Uhrzeit LEFT JOIN Veranstalter v ON Veranstalter_Veranstaltung_Uhrzeit.veranstalter_ID = v.ID "
"LEFT JOIN Uhrzeit u ON Veranstalter_Veranstaltung_Uhrzeit.uhrzeit_ID = u.ID "
"LEFT JOIN Veranstaltung o ON Veranstalter_Veranstaltung_Uhrzeit.veranstaltung_ID = o.ID "
"ORDER BY tag, uhrzeit_ID;";
pqxx::result response = worker.exec(query);
worker.commit();
for (const auto& row : response) {
std::string rowstring;
for (const auto& col : row) {
rowstring.append(col.c_str());
rowstring.append(" , ");
}
plan.push_back(rowstring);
}
return plan;
}
catch (const std::exception& e) {
std::cerr << "Error: " << e.what() << std::endl;
}
}