before task parser

DB_LMS/DataBaseLMS/CMakeLists.txt

@@ -11,6 +11,7 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 find_package(Qt5 COMPONENTS Widgets REQUIRED)
 find_package(Qt5 COMPONENTS Sql REQUIRED)
+find_package(Qt5 COMPONENTS LinguistTools REQUIRED)
 
 add_library(DataBaseLMS SHARED
   DataBaseLMS_global.h

DB_LMS/DataBaseLMS/CMakeLists.txt.user

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.11.1, 2024-11-13T17:15:54. -->
+<!-- Written by QtCreator 4.11.1, 2024-11-25T15:15:00. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>

DB_LMS/DataBaseLMS/databaselms.cpp

@@ -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)
 {

DB_LMS/DataBaseLMS/databaselms.h

@@ -17,6 +17,7 @@ protected:
     //Подключение
     bool createConnection();
     void deleteConnection();
+    bool isConnected();
 
     //Транзакции
     bool transactionBegin();
@@ -30,10 +31,12 @@ protected:
     //Инструктор
     Instructor selectInstructor(int id_instructor);
     int selectInstructorID(QString login, QString password = QStringLiteral(""));
+    QString selectInstructorNameByLogin(QString login);
     bool selectInstructorIsAdmin(int id_instructor);
     bool selectInstructorLoggedIn(int id_instructor);
     bool selectInstructorArchived(int id_instructor);
     int updateInstructorLoggedIn(int id_instructor, bool loggedIn);
+    bool updateAllInstructorsLoggedIn(bool loggedIn);
     int updateInstructorArchived(int id_instructor, bool archived);
 
     int insertInstructor();
@@ -42,22 +45,26 @@ protected:
     int updateInstructor(Instructor instructor);
 
     //Группа
-    Group selectGroup(int id_group);//
-    int insertGroup();//
+    Group selectGroup(int id_group);
+    int insertGroup();
     int insertGroup(Group group);
     int deleteGroup(int group_id);
     int updateGroup(Group group);
 
     //Обучаемый
-    Trainee selectTrainee(int id_trainee);//
+    Trainee selectTrainee(int id_trainee);
     QList<Trainee> selectAllTraineesInGroup(int id_group);
-    int selectTraineeID(QString login, QString password = QStringLiteral(""));//
-    bool selectTraineeArchived(int id_trainee);//
-    bool selectTraineeLoggedIn(int id_trainee);//
-    int updateTraineeLoggedIn(int id_trainee, bool loggedIn);//
-    int updateTraineeArchived(int id_trainee, bool archived);//
+    int selectTraineeID(QString login, QString password = QStringLiteral(""));
+    QString selectTraineeNameByLogin(QString login);
+    QString selectTraineeNameOnComputer(QString computer_name);
+    Trainee selectTraineeOnComputer(QString computer_name);
+    bool selectTraineeArchived(int id_trainee);
+    bool selectTraineeLoggedIn(int id_trainee);
+    int updateTraineeLoggedIn(int id_trainee, bool loggedIn);
+    bool updateAllTraineesLoggedIn(bool loggedIn);
+    int updateTraineeArchived(int id_trainee, bool archived);
 
-    int insertTrainee(int id_group);//
+    int insertTrainee(int id_group);
     int insertTrainee(Trainee trainee);
     int deleteTrainee(int trainee_id);
     int updateTrainee(Trainee trainee);
@@ -66,13 +73,13 @@ protected:
 
 private:
     int queryExecInt(QString queryStr);
-    //bool queryExecBool(QString queryStr);
     void messageWarningErrorQuery(QString queryStr, QSqlQuery* query);
 
-private:
+protected:
     QSqlDatabase* db;
-    bool transactionBegined;
     const QString dbName = "DataBaseLMS";
+private:
+    bool transactionBegined;    
     const QString dbUserName = "postgres";
     const QString dbPassword = "12345678";
     const QString dbType = "QPSQL";

DB_LMS/DataBaseLMS/interfacedatabaselms.cpp

@@ -1,12 +1,47 @@
 #include <QMessageBox>
+#include <QCoreApplication>
+#include <QSqlError>
 #include "interfacedatabaselms.h"
 
-InterfaceDataBaseLMS::InterfaceDataBaseLMS():
+InterfaceDataBaseLMS::InterfaceDataBaseLMS(QWidget* parent):
+    QWidget(parent),
     DataBaseLMS()
 {
 
 }
 
+void InterfaceDataBaseLMS::slot_LanguageChanged(QString language)
+{
+    qtLanguageTranslator.load(QString(QStringLiteral("translations/DataBaseLMS_")) + language, QStringLiteral("."));
+    QCoreApplication::installTranslator(&qtLanguageTranslator);
+}
+
+bool InterfaceDataBaseLMS::ConnectionToDB()
+{
+    if(!createConnection())
+    {
+        QMessageBox::critical(this, dbName, tr("Connection error: ") + db->lastError().text());
+        return false;
+    }
+    else
+    {
+        QMessageBox::information(this, dbName, tr("Connection is successful!"));
+        return true;
+    }
+}
+
+bool InterfaceDataBaseLMS::DisConnectionFromDB()
+{
+    deleteConnection();
+    QMessageBox::information(this, dbName, tr("Disconnection is successful!"));
+    return true;
+}
+
+bool InterfaceDataBaseLMS::DBisConnected()
+{
+    return isConnected();
+}
+
 //Инструкторы
 
 bool InterfaceDataBaseLMS::AuthorizationInstructor(QString login, QString password)
@@ -39,6 +74,16 @@ bool InterfaceDataBaseLMS::deAuthorizationInstructor(QString login)
     return false;
 }
 
+bool InterfaceDataBaseLMS::deAuthorizationAllInstructors()
+{
+    return updateAllInstructorsLoggedIn(false);
+}
+
+QString InterfaceDataBaseLMS::getNameInstructorByLogin(QString login)
+{
+    return selectInstructorNameByLogin(login);
+}
+
 QList<Instructor> InterfaceDataBaseLMS::getListInstructors()
 {
     return selectAllInstructors();
@@ -67,35 +112,35 @@ int InterfaceDataBaseLMS::editInstructor(Instructor instructor)
     {
         if(instructor.getName() == QStringLiteral("<instructor>"))
         {//Имя не корректно!
-            QMessageBox::critical(nullptr, tr("Editing error!"),
+            QMessageBox::critical(this, tr("Editing error!"),
                                   tr("Unacceptable instructor name has been entered.\nThe changes will not be accepted."));
             return 0;
         }
 
         if(instructor.getLogin() == QStringLiteral("<login>"))
         {//Логин не корректен!
-            QMessageBox::critical(nullptr, tr("Editing error!"),
+            QMessageBox::critical(this, tr("Editing error!"),
                                   tr("Unacceptable instructor login has been entered.\nThe changes will not be accepted."));
             return 0;
         }
 
         if(instructor.getPassword() == QStringLiteral("<password>"))
         {//Пароль не корректный!
-            QMessageBox::critical(nullptr, tr("Editing error!"),
+            QMessageBox::critical(this, tr("Editing error!"),
                                   tr("Unacceptable instructor password has been entered.\nThe changes will not be accepted."));
             return 0;
         }
 
         if(instructor.getName() == exist_instructor.getName() && instructor.getID() != exist_instructor.getID())
         {//Имя уже существует
-            QMessageBox::critical(nullptr, tr("Editing error!"),
+            QMessageBox::critical(this, tr("Editing error!"),
                                   tr("An existing instructor name has been entered."));
             return 0;
         }
 
         if(instructor.getLogin() == exist_instructor.getLogin() && instructor.getID() != exist_instructor.getID())
         {//Логин уже существует!
-            QMessageBox::critical(nullptr, tr("Editing error!"),
+            QMessageBox::critical(this, tr("Editing error!"),
                                   tr("An existing instructor login has been entered.\nThe changes will not be accepted."));
             return 0;
         }
@@ -114,6 +159,11 @@ bool InterfaceDataBaseLMS::isArchivedInstructor(int id)
     return selectInstructorArchived(id);
 }
 
+bool InterfaceDataBaseLMS::isLoggedInInstructor(int id)
+{
+    return selectInstructorLoggedIn(id);
+}
+
 
 //Инструкторы
 
@@ -147,6 +197,11 @@ bool InterfaceDataBaseLMS::deAuthorizationTrainee(QString login)
     return false;
 }
 
+bool InterfaceDataBaseLMS::deAuthorizationAllTrainees()
+{
+    return updateAllTraineesLoggedIn(false);
+}
+
 QList<Task> InterfaceDataBaseLMS::getTasksTrainee(int id)
 {
     return selectTasksOfTrainee(id);
@@ -154,35 +209,17 @@ QList<Task> InterfaceDataBaseLMS::getTasksTrainee(int id)
 
 QString InterfaceDataBaseLMS::getNameTraineeOnComputer(QString computer_name)
 {
-    /*
-    for(Trainee trainee : listOfTrainees)
-    {
-        if(trainee.getComputer().getName() == computer_name)
-            return trainee.getName();
-    }*/
-    return QString(QStringLiteral(""));
+    return selectTraineeNameOnComputer(computer_name);
 }
 
 Trainee InterfaceDataBaseLMS::getTraineeOnComputer(QString computer_name)
 {
-    /*
-    for(Trainee trainee : listOfTrainees)
-    {
-        if(trainee.getComputer().getName() == computer_name)
-            return trainee;
-    }*/
-    return Trainee();
+    return selectTraineeOnComputer(computer_name);
 }
 
 QString InterfaceDataBaseLMS::getNameTraineeByLogin(QString login)
 {
-    /*
-    for(Trainee trainee : listOfTrainees)
-    {
-        if(trainee.getLogin() == login)
-            return trainee.getName();
-    }*/
-    return QString(QStringLiteral(""));
+    return selectTraineeNameByLogin(login);
 }
 
 QList<Trainee> InterfaceDataBaseLMS::getListTraineesInGroup(int id)
@@ -228,15 +265,15 @@ int InterfaceDataBaseLMS::editGroup(Group group)
     {
         if(group.getName() == QStringLiteral("<group>"))
         {//Имя не корректно!
-            QMessageBox::critical(nullptr, tr("Editing error!"),
+            QMessageBox::critical(this, tr("Editing error!"),
                                   tr("Unacceptable group name has been entered.\nThe changes will not be accepted."));
             return 0;
         }
 
         if(group.getName() == exist_group.getName() && group.getID() != exist_group.getID())
         {//Имя уже существует
-            QMessageBox::critical(nullptr, tr("Editing error!"),
-                                  tr("An existing group name has been entered."));
+            QMessageBox::critical(this, tr("Editing error!"),
+                                  tr("An existing group name has been entered.\nThe changes will not be accepted."));
             return 0;
         }
     }
@@ -262,35 +299,35 @@ int InterfaceDataBaseLMS::editTrainee(Trainee trainee)
     {
         if(trainee.getName() == QStringLiteral("<trainee>"))
         {//Имя не корректно!
-            QMessageBox::critical(nullptr, tr("Editing error!"),
+            QMessageBox::critical(this, tr("Editing error!"),
                                   tr("Unacceptable trainee name has been entered.\nThe changes will not be accepted."));
             return 0;
         }
 
         if(trainee.getLogin() == QStringLiteral("<login>"))
         {//Логин не корректен!
-            QMessageBox::critical(nullptr, tr("Editing error!"),
+            QMessageBox::critical(this, tr("Editing error!"),
                                   tr("Unacceptable trainee login has been entered.\nThe changes will not be accepted."));
             return 0;
         }
 
         if(trainee.getPassword() == QStringLiteral("<password>"))
         {//Пароль не корректный!
-            QMessageBox::critical(nullptr, tr("Editing error!"),
+            QMessageBox::critical(this, tr("Editing error!"),
                                   tr("Unacceptable trainee password has been entered.\nThe changes will not be accepted."));
             return 0;
         }
 
         if(trainee.getName() == exist_trainee.getName() && trainee.getID() != exist_trainee.getID())
         {//Имя уже существует
-            QMessageBox::critical(nullptr, tr("Editing error!"),
+            QMessageBox::critical(this, tr("Editing error!"),
                                   tr("An existing trainee name has been entered."));
             return 0;
         }
 
         if(trainee.getLogin() == exist_trainee.getLogin() && trainee.getID() != exist_trainee.getID())
         {//Логин уже существует!
-            QMessageBox::critical(nullptr, tr("Editing error!"),
+            QMessageBox::critical(this, tr("Editing error!"),
                                   tr("An existing trainee login has been entered.\nThe changes will not be accepted."));
             return 0;
         }
@@ -303,3 +340,8 @@ bool InterfaceDataBaseLMS::isArchivedTrainee(int id)
 {
     return selectTraineeArchived(id);
 }
+
+bool InterfaceDataBaseLMS::isLoggedInTrainee(int id)
+{
+    return selectTraineeLoggedIn(id);
+}

DB_LMS/DataBaseLMS/interfacedatabaselms.h

@@ -2,23 +2,35 @@
 #define INTERFACEDATABASELMS_H
 
 #include <QObject>
+#include <QWidget>
+#include <QTranslator>
 
 #include "DataBaseLMS_global.h"
 #include "databaselms.h"
 
-class DATABASELMS_EXPORT InterfaceDataBaseLMS : public QObject,  DataBaseLMS
+class DATABASELMS_EXPORT InterfaceDataBaseLMS : public /*QObject*/QWidget,  DataBaseLMS
 {
     Q_OBJECT
 
 public:
-    InterfaceDataBaseLMS();
+    InterfaceDataBaseLMS(QWidget* parent = nullptr);
+
+public Q_SLOTS:
+    void slot_LanguageChanged(QString language);
 
 public:
+    //Соединение
+    bool ConnectionToDB();
+    bool DisConnectionFromDB();
+    bool DBisConnected();
 
     //Инструкторы
 
     bool AuthorizationInstructor(QString login, QString password);
     bool deAuthorizationInstructor(QString login);
+    bool deAuthorizationAllInstructors();
+
+    QString getNameInstructorByLogin(QString login);
 
     QList<Instructor> getListInstructors();
     Instructor getInstructor(int id);
@@ -29,12 +41,14 @@ public:
 
     bool isAdminInstructor(int id);
     bool isArchivedInstructor(int id);
+    bool isLoggedInInstructor(int id);
 
 
     //Обучаемые
 
     bool AuthorizationTrainee(QString login, QString password, QString classroom_name, QString computer_name);
     bool deAuthorizationTrainee(QString login);
+    bool deAuthorizationAllTrainees();
 
     //void setTasks(QString login, QStringList tasks);
     QList<Task> getTasksTrainee(int id);
@@ -60,8 +74,10 @@ public:
     int editTrainee(Trainee trainee);
 
     bool isArchivedTrainee(int id);
+    bool isLoggedInTrainee(int id);
 
-
+private:
+    QTranslator qtLanguageTranslator;
 };
 
 #endif // INTERFACEDATABASELMS_H

DB_LMS/DataBaseLMS/translations/DataBaseLMS_ru_RU.ts

@@ -0,0 +1,118 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1" language="ru_RU">
+<context>
+    <name>InterfaceDataBaseLMS</name>
+    <message>
+        <location filename="../interfacedatabaselms.cpp" line="23"/>
+        <source>Connection error: </source>
+        <translation>Ошибка соединения: </translation>
+    </message>
+    <message>
+        <location filename="../interfacedatabaselms.cpp" line="28"/>
+        <source>Connection is successful!</source>
+        <translation>Соединение успешно!</translation>
+    </message>
+    <message>
+        <location filename="../interfacedatabaselms.cpp" line="36"/>
+        <source>Disconnection is successful!</source>
+        <translation>Отключение успешно!</translation>
+    </message>
+    <message>
+        <location filename="../interfacedatabaselms.cpp" line="109"/>
+        <location filename="../interfacedatabaselms.cpp" line="116"/>
+        <location filename="../interfacedatabaselms.cpp" line="123"/>
+        <location filename="../interfacedatabaselms.cpp" line="130"/>
+        <location filename="../interfacedatabaselms.cpp" line="137"/>
+        <location filename="../interfacedatabaselms.cpp" line="252"/>
+        <location filename="../interfacedatabaselms.cpp" line="259"/>
+        <location filename="../interfacedatabaselms.cpp" line="286"/>
+        <location filename="../interfacedatabaselms.cpp" line="293"/>
+        <location filename="../interfacedatabaselms.cpp" line="300"/>
+        <location filename="../interfacedatabaselms.cpp" line="307"/>
+        <location filename="../interfacedatabaselms.cpp" line="314"/>
+        <source>Editing error!</source>
+        <translation>Ошибка редактирования!</translation>
+    </message>
+    <message>
+        <location filename="../interfacedatabaselms.cpp" line="110"/>
+        <source>Unacceptable instructor name has been entered.
+The changes will not be accepted.</source>
+        <translation>Введено недопустимое имя инструктора.
+Изменения не будут приняты.</translation>
+    </message>
+    <message>
+        <location filename="../interfacedatabaselms.cpp" line="117"/>
+        <source>Unacceptable instructor login has been entered.
+The changes will not be accepted.</source>
+        <translation>Введен недопустимый логин инструктора.
+Изменения не будут приняты.</translation>
+    </message>
+    <message>
+        <location filename="../interfacedatabaselms.cpp" line="124"/>
+        <source>Unacceptable instructor password has been entered.
+The changes will not be accepted.</source>
+        <translation>Введен недопустимый пароль инструктора.
+Изменения не будут приняты.</translation>
+    </message>
+    <message>
+        <location filename="../interfacedatabaselms.cpp" line="131"/>
+        <source>An existing instructor name has been entered.</source>
+        <translation>Введено существующее имя инструктора.</translation>
+    </message>
+    <message>
+        <location filename="../interfacedatabaselms.cpp" line="138"/>
+        <source>An existing instructor login has been entered.
+The changes will not be accepted.</source>
+        <translation>Введен существующий логин инструктора.
+Изменения не будут приняты.</translation>
+    </message>
+    <message>
+        <location filename="../interfacedatabaselms.cpp" line="253"/>
+        <source>Unacceptable group name has been entered.
+The changes will not be accepted.</source>
+        <translation>Введено недопустимое имя группы.
+Изменения не будут приняты.</translation>
+    </message>
+    <message>
+        <location filename="../interfacedatabaselms.cpp" line="260"/>
+        <source>An existing group name has been entered.
+The changes will not be accepted.</source>
+        <translation>Введено существующее имя группы.
+Изменения не будут приняты.</translation>
+    </message>
+    <message>
+        <location filename="../interfacedatabaselms.cpp" line="287"/>
+        <source>Unacceptable trainee name has been entered.
+The changes will not be accepted.</source>
+        <translation>Введено недопустимое имя обучаемого.
+Изменения не будут приняты.</translation>
+    </message>
+    <message>
+        <location filename="../interfacedatabaselms.cpp" line="294"/>
+        <source>Unacceptable trainee login has been entered.
+The changes will not be accepted.</source>
+        <translation>Введен недопустимый логин обучаемого.
+Изменения не будут приняты.</translation>
+    </message>
+    <message>
+        <location filename="../interfacedatabaselms.cpp" line="301"/>
+        <source>Unacceptable trainee password has been entered.
+The changes will not be accepted.</source>
+        <translation>Введен недопустимый пароль обучаемого.
+Изменения не будут приняты.</translation>
+    </message>
+    <message>
+        <location filename="../interfacedatabaselms.cpp" line="308"/>
+        <source>An existing trainee name has been entered.</source>
+        <translation>Введено существующее имя обучаемого.</translation>
+    </message>
+    <message>
+        <location filename="../interfacedatabaselms.cpp" line="315"/>
+        <source>An existing trainee login has been entered.
+The changes will not be accepted.</source>
+        <translation>Введен существующий логин обучаемого.
+Изменения не будут приняты.</translation>
+    </message>
+</context>
+</TS>