ввел мьютекс на запросы SQL работает

DB_IaT/Debug64/.ninja_log

@@ -99,3 +99,41 @@
 958	3898	7544209781920716	CMakeFiles/InstructorsAndTrainees.dir/instructorsandtraineeswidget.cpp.obj	292dc993acccb16a
 3898	4288	7544209785868876	libInstructorsAndTrainees.dll	df6929ab83dae889
 3898	4288	7544209785868876	libInstructorsAndTrainees.dll.a	df6929ab83dae889
+8	397	0	CMakeFiles/InstructorsAndTrainees_autogen	325fc9931da2ad77
+8	397	0	InstructorsAndTrainees_autogen/mocs_compilation.cpp	325fc9931da2ad77
+8	397	0	InstructorsAndTrainees_autogen/include/ui_instructorsandtraineeswidget.h	325fc9931da2ad77
+8	397	0	InstructorsAndTrainees_autogen/include/trainees/ui_editortrainees.h	325fc9931da2ad77
+8	397	0	InstructorsAndTrainees_autogen/include/trainees/ui_dialogeditgroup.h	325fc9931da2ad77
+8	397	0	InstructorsAndTrainees_autogen/include/trainees/ui_dialogedittrainee.h	325fc9931da2ad77
+8	397	0	InstructorsAndTrainees_autogen/include/trainees/ui_viewertrainees.h	325fc9931da2ad77
+8	397	0	InstructorsAndTrainees_autogen/include/instructors/ui_viewerinstructors.h	325fc9931da2ad77
+8	397	0	InstructorsAndTrainees_autogen/include/instructors/ui_editorinstructors.h	325fc9931da2ad77
+8	397	0	InstructorsAndTrainees_autogen/include/instructors/ui_dialogeditinstructor.h	325fc9931da2ad77
+8	397	0	InstructorsAndTrainees_autogen/include/instructors/ui_dialogauthorizationinstructor.h	325fc9931da2ad77
+8	397	0	InstructorsAndTrainees_autogen/include/tasks/ui_taskswidget.h	325fc9931da2ad77
+8	397	0	InstructorsAndTrainees_autogen/include/docTasks/ui_doctaskswidget.h	325fc9931da2ad77
+8	397	0	D:/LMS/DB_IaT/Debug64/CMakeFiles/InstructorsAndTrainees_autogen	325fc9931da2ad77
+8	397	0	D:/LMS/DB_IaT/Debug64/InstructorsAndTrainees_autogen/mocs_compilation.cpp	325fc9931da2ad77
+8	397	0	D:/LMS/DB_IaT/Debug64/InstructorsAndTrainees_autogen/include/ui_instructorsandtraineeswidget.h	325fc9931da2ad77
+8	397	0	D:/LMS/DB_IaT/Debug64/InstructorsAndTrainees_autogen/include/trainees/ui_editortrainees.h	325fc9931da2ad77
+8	397	0	D:/LMS/DB_IaT/Debug64/InstructorsAndTrainees_autogen/include/trainees/ui_dialogeditgroup.h	325fc9931da2ad77
+8	397	0	D:/LMS/DB_IaT/Debug64/InstructorsAndTrainees_autogen/include/trainees/ui_dialogedittrainee.h	325fc9931da2ad77
+8	397	0	D:/LMS/DB_IaT/Debug64/InstructorsAndTrainees_autogen/include/trainees/ui_viewertrainees.h	325fc9931da2ad77
+8	397	0	D:/LMS/DB_IaT/Debug64/InstructorsAndTrainees_autogen/include/instructors/ui_viewerinstructors.h	325fc9931da2ad77
+8	397	0	D:/LMS/DB_IaT/Debug64/InstructorsAndTrainees_autogen/include/instructors/ui_editorinstructors.h	325fc9931da2ad77
+8	397	0	D:/LMS/DB_IaT/Debug64/InstructorsAndTrainees_autogen/include/instructors/ui_dialogeditinstructor.h	325fc9931da2ad77
+8	397	0	D:/LMS/DB_IaT/Debug64/InstructorsAndTrainees_autogen/include/instructors/ui_dialogauthorizationinstructor.h	325fc9931da2ad77
+8	397	0	D:/LMS/DB_IaT/Debug64/InstructorsAndTrainees_autogen/include/tasks/ui_taskswidget.h	325fc9931da2ad77
+8	397	0	D:/LMS/DB_IaT/Debug64/InstructorsAndTrainees_autogen/include/docTasks/ui_doctaskswidget.h	325fc9931da2ad77
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DB_IaT/Debug64/CMakeFiles/InstructorsAndTrainees_autogen.dir/ParseCache.txt

@@ -1,35 +1,40 @@
 # Generated by CMake. Changes will be overwritten.
-D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/viewertrainees.cpp
+D:/LMS/DB_IaT/InstructorsAndTrainees/instructors/viewerinstructors.cpp
- uic:ui_viewertrainees.h
+ uic:ui_viewerinstructors.h
-D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/traineesview.cpp
+D:/LMS/DB_IaT/InstructorsAndTrainees/docTasks/doctaskswidget.cpp
-D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/editortrainees.cpp
+ uic:ui_doctaskswidget.h
- uic:ui_editortrainees.h
+D:/LMS/DB_IaT/InstructorsAndTrainees/instructors/instructorsview.cpp
-D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/dialogeditgroup.h
- mmc:Q_OBJECT
- uic:ui_dialogeditgroup.h
-D:/LMS/DB_IaT/InstructorsAndTrainees/instructorsandtraineeswidget.h
- mmc:Q_OBJECT
-D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/viewertrainees.h
- mmc:Q_OBJECT
-D:/LMS/DB_IaT/InstructorsAndTrainees/instructorsAndTrainees_global.h
-D:/LMS/DB_IaT/InstructorsAndTrainees/instructors/instructorsview.h
- mmc:Q_OBJECT
-D:/LMS/DB_IaT/InstructorsAndTrainees/instructors/viewerinstructors.h
- mmc:Q_OBJECT
-D:/LMS/DB_IaT/InstructorsAndTrainees/docTasks/doctaskswidget.h
- mmc:Q_OBJECT
-D:/LMS/DB_IaT/InstructorsAndTrainees/instructors/dialogeditinstructor.h
- mmc:Q_OBJECT
- uic:ui_dialogeditinstructor.h
 D:/LMS/DB_IaT/InstructorsAndTrainees/instructors/dialogauthorizationinstructor.h
  mmc:Q_OBJECT
  uic:ui_dialogauthorizationinstructor.h
+D:/LMS/DB_IaT/InstructorsAndTrainees/instructors/dialogeditinstructor.h
+ mmc:Q_OBJECT
+ uic:ui_dialogeditinstructor.h
+D:/LMS/DB_IaT/InstructorsAndTrainees/docTasks/doctaskswidget.h
+ mmc:Q_OBJECT
+D:/LMS/DB_IaT/InstructorsAndTrainees/instructors/viewerinstructors.h
+ mmc:Q_OBJECT
+D:/LMS/DB_IaT/InstructorsAndTrainees/instructors/instructorsview.h
+ mmc:Q_OBJECT
+D:/LMS/DB_IaT/InstructorsAndTrainees/instructorsAndTrainees_global.h
 D:/LMS/DB_IaT/InstructorsAndTrainees/instructors/editorinstructors.h
  mmc:Q_OBJECT
 D:/LMS/DB_IaT/InstructorsAndTrainees/instructors/dialogauthorizationinstructor.cpp
  uic:ui_dialogauthorizationinstructor.h
 D:/LMS/DB_IaT/InstructorsAndTrainees/instructorsandtraineeswidget.cpp
  uic:ui_instructorsandtraineeswidget.h
+D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/viewertrainees.h
+ mmc:Q_OBJECT
+D:/LMS/DB_IaT/InstructorsAndTrainees/instructorsandtraineeswidget.h
+ mmc:Q_OBJECT
+D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/dialogeditgroup.h
+ mmc:Q_OBJECT
+ uic:ui_dialogeditgroup.h
+D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/editortrainees.cpp
+ uic:ui_editortrainees.h
+D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/traineesview.cpp
+D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/viewertrainees.cpp
+ uic:ui_viewertrainees.h
 D:/LMS/DB_IaT/InstructorsAndTrainees/docTasks/module.h
 D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/computersLocations.h
 D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/editortrainees.h
@@ -40,6 +45,10 @@ D:/LMS/DB_IaT/InstructorsAndTrainees/tasks/taskswidget.h
  mmc:Q_OBJECT
 D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/traineesview.h
  mmc:Q_OBJECT
+D:/LMS/DB_IaT/InstructorsAndTrainees/instructors/editorinstructors.cpp
+ uic:ui_editorinstructors.h
+D:/LMS/DB_IaT/InstructorsAndTrainees/tasks/taskswidget.cpp
+ uic:ui_taskswidget.h
 D:/LMS/DB_IaT/InstructorsAndTrainees/commonview.cpp
 D:/LMS/DB_IaT/InstructorsAndTrainees/commonview.h
  mmc:Q_OBJECT
@@ -47,15 +56,6 @@ D:/LMS/DB_IaT/InstructorsAndTrainees/docTasks/module.cpp
 D:/LMS/DB_IaT/InstructorsAndTrainees/instructors/dialogeditinstructor.cpp
  uic:ui_dialogeditinstructor.h
 D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/computersLocations.cpp
+D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/dialogeditgroup.cpp
 D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/dialogedittrainee.cpp
  uic:ui_dialogedittrainee.h
-D:/LMS/DB_IaT/InstructorsAndTrainees/trainees/dialogeditgroup.cpp
-D:/LMS/DB_IaT/InstructorsAndTrainees/tasks/taskswidget.cpp
- uic:ui_taskswidget.h
-D:/LMS/DB_IaT/InstructorsAndTrainees/instructors/editorinstructors.cpp
- uic:ui_editorinstructors.h
-D:/LMS/DB_IaT/InstructorsAndTrainees/instructors/instructorsview.cpp
-D:/LMS/DB_IaT/InstructorsAndTrainees/docTasks/doctaskswidget.cpp
- uic:ui_doctaskswidget.h
-D:/LMS/DB_IaT/InstructorsAndTrainees/instructors/viewerinstructors.cpp
- uic:ui_viewerinstructors.h

DB_LMS/DataBaseLMS/databaselms.cpp

@@ -18,23 +18,29 @@ DataBaseLMS::~DataBaseLMS()
 
 bool DataBaseLMS::createConnection()
 {
+    mtxAccess.lock();
+
     db = new QSqlDatabase(QSqlDatabase::addDatabase(dbType));
     db->setDatabaseName(dbName);
     db->setUserName(dbUserName);
     db->setPassword(dbPassword);
     if(!db->open())
     {
+        mtxAccess.unlock();
         deleteConnection();
         return false;
     }
     else
     {
+        mtxAccess.unlock();
         return true;
     }
 }
 
 void DataBaseLMS::deleteConnection()
 {
+    mtxAccess.lock();
+
     if(transactionBegined)
         QSqlDatabase::database().rollback();
 
@@ -46,17 +52,29 @@ void DataBaseLMS::deleteConnection()
         delete  db;
         db = nullptr;
     }
+
+    mtxAccess.unlock();
 }
 
 bool DataBaseLMS::isConnected()
 {
+    mtxAccess.lock();
+
     if(db == nullptr)
+    {
+        mtxAccess.unlock();
         return false;
+    }
     else
     {
         if(db->isOpen())
+        {
+            mtxAccess.unlock();
             return true;
         }
+    }
+
+    mtxAccess.unlock();
     return false;
 }
 
@@ -97,11 +115,7 @@ QList<Instructor> DataBaseLMS::selectAllInstructors()
 
     QSqlQuery query = QSqlQuery(*db);
 
-    if(!query.exec(queryStr))
+    if(queryExec(queryStr, &query))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
     {
         while (query.next())
         {//Инструктор
@@ -136,11 +150,7 @@ QList<Trainee> DataBaseLMS::selectAllTrainees()
 
     QSqlQuery query = QSqlQuery(*db);
 
-    if(!query.exec(queryStr))
+    if(queryExec(queryStr, &query))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
     {
         while (query.next())
         {//Обучаемый
@@ -179,11 +189,7 @@ QList<Group> DataBaseLMS::selectAllGroups()
 
     QSqlQuery query = QSqlQuery(*db);
 
-    if(!query.exec(queryStr))
+    if(queryExec(queryStr, &query))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
     {
         while (query.next())
         {//Группа
@@ -209,11 +215,7 @@ Instructor DataBaseLMS::selectInstructor(int id_instructor)
 
     QSqlQuery query = QSqlQuery(*db);
 
-    if(!query.exec(queryStr))
+    if(queryExec(queryStr, &query))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
     {
         if (query.first())
         {//Инструктор
@@ -260,18 +262,7 @@ QString DataBaseLMS::selectInstructorNameByLogin(QString login)
                                                   "WHERE instructors.login = '%1' ").arg(
                                                          login );
 
-    QSqlQuery query = QSqlQuery(*db);
+    return queryExecString(queryStr);
-
-    if(!query.exec(queryStr))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
-    {
-        if(query.first())
-            return query.value(0).toString();
-    }
-    return QStringLiteral("");
 }
 
 bool DataBaseLMS::selectInstructorIsAdmin(int id_instructor)
@@ -281,18 +272,7 @@ bool DataBaseLMS::selectInstructorIsAdmin(int id_instructor)
                                                   "WHERE instructor_id = %1 ").arg(
                                                          id_instructor );
 
-    QSqlQuery query = QSqlQuery(*db);
+    return queryExecBool(queryStr);
-
-    if(!query.exec(queryStr))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
-    {
-        if(query.first())
-            return query.value(0).toBool();
-    }
-    return false;
 }
 
 bool DataBaseLMS::selectInstructorLoggedIn(int id_instructor)
@@ -302,18 +282,7 @@ bool DataBaseLMS::selectInstructorLoggedIn(int id_instructor)
                                                   "WHERE instructor_id = %1 ").arg(
                                                          id_instructor );
 
-    QSqlQuery query = QSqlQuery(*db);
+    return queryExecBool(queryStr);
-
-    if(!query.exec(queryStr))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
-    {
-        if(query.first())
-            return query.value(0).toBool();
-    }
-    return false;
 }
 
 bool DataBaseLMS::selectInstructorArchived(int id_instructor)
@@ -323,18 +292,7 @@ bool DataBaseLMS::selectInstructorArchived(int id_instructor)
                                                   "WHERE instructor_id = %1 ").arg(
                                                          id_instructor );
 
-    QSqlQuery query = QSqlQuery(*db);
+    return queryExecBool(queryStr);
-
-    if(!query.exec(queryStr))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
-    {
-        if(query.first())
-            return query.value(0).toBool();
-    }
-    return false;
 }
 
 int DataBaseLMS::updateInstructorLoggedIn(int id_instructor, bool loggedIn)
@@ -357,15 +315,7 @@ bool DataBaseLMS::updateAllInstructorsLoggedIn(bool loggedIn)
 
     QSqlQuery query = QSqlQuery(*db);
 
-    if(!query.exec(queryStr))
+    return queryExec(queryStr, &query);
-    {
-        messageWarningErrorQuery(queryStr, &query);
-        return false;
-    }
-    else
-    {
-        return true;
-    }
 }
 
 int DataBaseLMS::updateInstructorArchived(int id_instructor, bool archived)
@@ -442,11 +392,7 @@ Group DataBaseLMS::selectGroup(int id_group)
 
     QSqlQuery query = QSqlQuery(*db);
 
-    if(!query.exec(queryStr))
+    if(queryExec(queryStr, &query))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
     {
         if (query.first())
         {//Инструктор
@@ -515,11 +461,7 @@ Trainee DataBaseLMS::selectTrainee(int id_trainee)
 
     QSqlQuery query = QSqlQuery(*db);
 
-    if(!query.exec(queryStr))
+    if(queryExec(queryStr, &query))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
     {
         if (query.first())
         {//Инструктор
@@ -561,11 +503,7 @@ QList<Trainee> DataBaseLMS::selectAllTraineesInGroup(int id_group)
 
     QSqlQuery query = QSqlQuery(*db);
 
-    if(!query.exec(queryStr))
+    if(queryExec(queryStr, &query))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
     {
         while (query.next())
         {//Обучаемый
@@ -624,18 +562,7 @@ QString DataBaseLMS::selectTraineeNameByLogin(QString login)
                                                   "WHERE trainees.login = '%1' ").arg(
                                                          login );
 
-    QSqlQuery query = QSqlQuery(*db);
+    return queryExecString(queryStr);
-
-    if(!query.exec(queryStr))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
-    {
-        if(query.first())
-            return query.value(0).toString();
-    }
-    return QStringLiteral("");
 }
 
 QString DataBaseLMS::selectTraineeNameOnComputer(QString computer_name)
@@ -645,18 +572,7 @@ QString DataBaseLMS::selectTraineeNameOnComputer(QString computer_name)
                                                  "WHERE computers.name = '%1' ").arg(
                                                         computer_name);
 
-    QSqlQuery query = QSqlQuery(*db);
+    return queryExecString(queryStr);
-
-    if(!query.exec(queryStr))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
-    {
-        if(query.first())
-            return query.value(0).toString();
-    }
-    return QStringLiteral("");
 }
 
 Trainee DataBaseLMS::selectTraineeOnComputer(QString computer_name)
@@ -675,11 +591,7 @@ Trainee DataBaseLMS::selectTraineeOnComputer(QString computer_name)
 
     QSqlQuery query = QSqlQuery(*db);
 
-    if(!query.exec(queryStr))
+    if(queryExec(queryStr, &query))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
     {
         if (query.first())
         {//Инструктор
@@ -711,18 +623,7 @@ bool DataBaseLMS::selectTraineeArchived(int id_trainee)
                                                   "WHERE trainee_id = %1 ").arg(
                                                          id_trainee );
 
-    QSqlQuery query = QSqlQuery(*db);
+    return queryExecBool(queryStr);
-
-    if(!query.exec(queryStr))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
-    {
-        if(query.first())
-            return query.value(0).toBool();
-    }
-    return false;
 }
 
 bool DataBaseLMS::selectTraineeLoggedIn(int id_trainee)
@@ -732,18 +633,7 @@ bool DataBaseLMS::selectTraineeLoggedIn(int id_trainee)
                                                   "WHERE trainee_id = %1 ").arg(
                                                          id_trainee );
 
-    QSqlQuery query = QSqlQuery(*db);
+    return queryExecBool(queryStr);
-
-    if(!query.exec(queryStr))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
-    {
-        if(query.first())
-            return query.value(0).toBool();
-    }
-    return false;
 }
 
 int DataBaseLMS::updateTraineeLoggedIn(int id_trainee, bool loggedIn)
@@ -766,15 +656,7 @@ bool DataBaseLMS::updateAllTraineesLoggedIn(bool loggedIn)
 
     QSqlQuery query = QSqlQuery(*db);
 
-    if(!query.exec(queryStr))
+    return queryExec(queryStr, &query);
-    {
-        messageWarningErrorQuery(queryStr, &query);
-        return false;
-    }
-    else
-    {
-        return true;
-    }
 }
 
 int DataBaseLMS::updateTraineeArchived(int id_trainee, bool archived)
@@ -860,11 +742,7 @@ QList<Task> DataBaseLMS::selectTasksOfTrainee(int trainee_id)
 
     QSqlQuery query = QSqlQuery(*db);
 
-    if(!query.exec(queryStr))
+    if(queryExec(queryStr, &query))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-    }
-    else
     {
         while (query.next())
         {//Задача
@@ -882,18 +760,49 @@ int DataBaseLMS::queryExecInt(QString queryStr)
 {
     QSqlQuery query = QSqlQuery(*db);
 
-    if(!query.exec(queryStr))
+    if(queryExec(queryStr, &query))
-    {
-        messageWarningErrorQuery(queryStr, &query);
-        return 0;
-    }
-    else
     {
         if(query.first())
             return query.value(0).toInt();
-        else
+    }
+
     return 0;
 }
+
+QString DataBaseLMS::queryExecString(QString queryStr)
+{
+    QSqlQuery query = QSqlQuery(*db);
+
+    if(queryExec(queryStr, &query))
+    {
+        if(query.first())
+            return query.value(0).toString();
+    }
+
+    return QStringLiteral("");
+}
+
+bool DataBaseLMS::queryExecBool(QString queryStr)
+{
+    QSqlQuery query = QSqlQuery(*db);
+
+    if(queryExec(queryStr, &query))
+    {
+        if(query.first())
+            return query.value(0).toBool();
+    }
+
+    return false;
+}
+
+bool DataBaseLMS::queryExec(QString queryStr, QSqlQuery *query)
+{
+    bool res  = false;
+    mtxAccess.lock();
+    if(! (res = query->exec(queryStr)) )
+            messageWarningErrorQuery(queryStr, query);
+    mtxAccess.unlock();
+    return res;
 }
 
 void DataBaseLMS::messageWarningErrorQuery(QString queryStr, QSqlQuery* query)

DB_LMS/DataBaseLMS/databaselms.h

@@ -2,6 +2,7 @@
 #define DATABASELMS_H
 
 #include <QSqlDatabase>
+#include <QMutex>
 
 #include "instructor.h"
 #include "trainee.h"
@@ -73,6 +74,9 @@ protected:
 
 private:
     int queryExecInt(QString queryStr);
+    QString queryExecString(QString queryStr);
+    bool queryExecBool(QString queryStr);
+    bool queryExec(QString queryStr, QSqlQuery* query);
     void messageWarningErrorQuery(QString queryStr, QSqlQuery* query);
 
 protected:
@@ -83,6 +87,8 @@ private:
     const QString dbUserName = "postgres";
     const QString dbPassword = "12345678";
     const QString dbType = "QPSQL";
+
+    QMutex mtxAccess;
 };
 
 #endif // DATABASELMS_H

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