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before task parser

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This commit is contained in:
krivoshein
2024-11-25 15:25:55 +03:00
parent 2ed1eac956
commit 7637922872
401 changed files with 39759 additions and 1630 deletions
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197
DB_LMS/DataBaseLMS/databaselms.cpp
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@@ -8,7 +8,7 @@ DataBaseLMS::DataBaseLMS():
db(nullptr),
transactionBegined(false)
{
createConnection();
}
DataBaseLMS::~DataBaseLMS()
@@ -24,12 +24,11 @@ bool DataBaseLMS::createConnection()
db->setPassword(dbPassword);
if(!db->open())
{
QMessageBox::critical(nullptr, dbName, "Connection error: " + db->lastError().text());
deleteConnection();
return false;
}
else
{
QMessageBox::information(nullptr, dbName, "Connection is successful!");
return true;
}
}
@@ -49,18 +48,34 @@ void DataBaseLMS::deleteConnection()
}
}
bool DataBaseLMS::isConnected()
{
if(db == nullptr)
return false;
else
{
if(db->isOpen())
return true;
}
return false;
}
bool DataBaseLMS::transactionBegin()
{
/*
if(transactionBegined)
QSqlDatabase::database().rollback();
transactionBegined = true;
return QSqlDatabase::database().transaction();
*/
return true;
}
bool DataBaseLMS::transactionEnd()
{
/*
if(transactionBegined)
{
transactionBegined = false;
@@ -68,6 +83,8 @@ bool DataBaseLMS::transactionEnd()
return QSqlDatabase::database().commit();
}
return false;
*/
return true;
}
QList<Instructor> DataBaseLMS::selectAllInstructors()
@@ -236,6 +253,27 @@ int DataBaseLMS::selectInstructorID(QString login, QString password)
return queryExecInt(queryStr);
}
QString DataBaseLMS::selectInstructorNameByLogin(QString login)
{
QString queryStr = QString("SELECT instructors.name "
"FROM public.instructors "
"WHERE instructors.login = '%1' ").arg(
login );
QSqlQuery query = QSqlQuery(*db);
if(!query.exec(queryStr))
{
messageWarningErrorQuery(queryStr, &query);
}
else
{
if(query.first())
return query.value(0).toString();
}
return QStringLiteral("");
}
bool DataBaseLMS::selectInstructorIsAdmin(int id_instructor)
{
QString queryStr = QString("SELECT instructors.is_admin "
@@ -251,7 +289,7 @@ bool DataBaseLMS::selectInstructorIsAdmin(int id_instructor)
}
else
{
if(query.next())
if(query.first())
return query.value(0).toBool();
}
return false;
@@ -272,7 +310,7 @@ bool DataBaseLMS::selectInstructorLoggedIn(int id_instructor)
}
else
{
if(query.next())
if(query.first())
return query.value(0).toBool();
}
return false;
@@ -293,7 +331,7 @@ bool DataBaseLMS::selectInstructorArchived(int id_instructor)
}
else
{
if(query.next())
if(query.first())
return query.value(0).toBool();
}
return false;
@@ -311,6 +349,25 @@ int DataBaseLMS::updateInstructorLoggedIn(int id_instructor, bool loggedIn)
return queryExecInt(queryStr);
}
bool DataBaseLMS::updateAllInstructorsLoggedIn(bool loggedIn)
{
QString queryStr = QString("UPDATE public.instructors "
"SET logged_in = %1 ").arg(
loggedIn ? "true" : "false");
QSqlQuery query = QSqlQuery(*db);
if(!query.exec(queryStr))
{
messageWarningErrorQuery(queryStr, &query);
return false;
}
else
{
return true;
}
}
int DataBaseLMS::updateInstructorArchived(int id_instructor, bool archived)
{
QString queryStr = QString("UPDATE public.instructors "
@@ -560,6 +617,93 @@ int DataBaseLMS::selectTraineeID(QString login, QString password)
return queryExecInt(queryStr);
}
QString DataBaseLMS::selectTraineeNameByLogin(QString login)
{
QString queryStr = QString("SELECT trainees.name "
"FROM public.trainees "
"WHERE trainees.login = '%1' ").arg(
login );
QSqlQuery query = QSqlQuery(*db);
if(!query.exec(queryStr))
{
messageWarningErrorQuery(queryStr, &query);
}
else
{
if(query.first())
return query.value(0).toString();
}
return QStringLiteral("");
}
QString DataBaseLMS::selectTraineeNameOnComputer(QString computer_name)
{
QString queryStr = QString("SELECT trainees.name "
"FROM public.trainees JOIN public.computers ON computers.computer_id = trainees.computer_trainee "
"WHERE computers.name = '%1' ").arg(
computer_name);
QSqlQuery query = QSqlQuery(*db);
if(!query.exec(queryStr))
{
messageWarningErrorQuery(queryStr, &query);
}
else
{
if(query.first())
return query.value(0).toString();
}
return QStringLiteral("");
}
Trainee DataBaseLMS::selectTraineeOnComputer(QString computer_name)
{
Trainee trainee;
QString queryStr = QString("SELECT trainees.trainee_id, trainees.name, trainees.login, trainees.password, trainees.archived, trainees.logged_in, "
"groups.group_id, groups.name, "
"computers.computer_id, computers.name, computers.ip_address, "
"classrooms.classroom_id, classrooms.name "
"FROM public.trainees JOIN public.groups ON groups.group_id = trainees.group_trainee "
"LEFT OUTER JOIN public.computers ON computers.computer_id = trainees.computer_trainee "
"LEFT OUTER JOIN public.classrooms ON classrooms.classroom_id = computers.classroom_computer "
"WHERE computers.name = '%1' ").arg(
computer_name);
QSqlQuery query = QSqlQuery(*db);
if(!query.exec(queryStr))
{
messageWarningErrorQuery(queryStr, &query);
}
else
{
if (query.first())
{//Инструктор
trainee.setID(query.value(0).toInt());
trainee.setName(query.value(1).toString());
trainee.setLogin(query.value(2).toString());
trainee.setPassword(query.value(3).toString());
trainee.setArchived(query.value(4).toBool());
trainee.setLoggedIn(query.value(5).toBool());
Group group = Group(query.value(6).toInt(), query.value(7).toString());
trainee.setGroup(group);
Classroom classroom = Classroom(query.value(11).toInt(), query.value(12).toString());
Computer computer = Computer(query.value(8).toInt(), query.value(9).toString(), query.value(10).toString(), classroom);
trainee.setComputer(computer);
trainee.setTasks(selectTasksOfTrainee(trainee.getID()));
}
}
return trainee;
}
bool DataBaseLMS::selectTraineeArchived(int id_trainee)
{
QString queryStr = QString("SELECT trainees.archived "
@@ -575,7 +719,7 @@ bool DataBaseLMS::selectTraineeArchived(int id_trainee)
}
else
{
if(query.next())
if(query.first())
return query.value(0).toBool();
}
return false;
@@ -596,7 +740,7 @@ bool DataBaseLMS::selectTraineeLoggedIn(int id_trainee)
}
else
{
if(query.next())
if(query.first())
return query.value(0).toBool();
}
return false;
@@ -614,6 +758,25 @@ int DataBaseLMS::updateTraineeLoggedIn(int id_trainee, bool loggedIn)
return queryExecInt(queryStr);
}
bool DataBaseLMS::updateAllTraineesLoggedIn(bool loggedIn)
{
QString queryStr = QString("UPDATE public.trainees "
"SET logged_in = %1 ").arg(
loggedIn ? "true" : "false");
QSqlQuery query = QSqlQuery(*db);
if(!query.exec(queryStr))
{
messageWarningErrorQuery(queryStr, &query);
return false;
}
else
{
return true;
}
}
int DataBaseLMS::updateTraineeArchived(int id_trainee, bool archived)
{
QString queryStr = QString("UPDATE public.trainees "
@@ -732,24 +895,6 @@ int DataBaseLMS::queryExecInt(QString queryStr)
return 0;
}
}
/*
bool DataBaseLMS::queryExecBool(QString queryStr)
{
QSqlQuery query = QSqlQuery(*db);
if(!query.exec(queryStr))
{
messageWarningErrorQuery(queryStr, &query);
return 0;
}
else
{
if(query.first())
return query.value(0).toBool();
else
return 0;
}
}*/
void DataBaseLMS::messageWarningErrorQuery(QString queryStr, QSqlQuery* query)
{