PSQL 30.10.2024

DB/DataBaseLMS/databaselms.h

@@ -0,0 +1,50 @@
+#ifndef DATABASELMS_H
+#define DATABASELMS_H
+
+#include <QSqlDatabase>
+
+#include "instructor.h"
+#include "trainee.h"
+#include "group.h"
+
+#include "DataBaseLMS_global.h"
+
+class DATABASELMS_EXPORT DataBaseLMS
+{
+public:
+    DataBaseLMS();
+    ~DataBaseLMS();
+
+public:
+    bool createConnection();
+    void deleteConnection();
+
+    QList<Instructor> selectAllInstructors();
+    QList<Trainee> selectAllTrainees();
+    QList<Group> selectAllGroups();
+
+    bool insertInstructor(Instructor instructor);
+    bool deleteInstructor(int instructor_id);
+    bool updateInstructor(Instructor instructor);
+
+    bool insertGroup(Group group);
+    bool deleteGroup(int group_id);
+    bool updateGroup(Group group);
+
+    bool insertTrainee(Trainee trainee);
+    bool deleteTrainee(int trainee_id);
+    bool updateTrainee(Trainee trainee);
+
+private:
+    bool queryExec(QString queryStr);
+    void messageWarningErrorQuery(QString queryStr);
+
+private:
+    QSqlDatabase* db;
+    const QString dbName = "DataBaseLMS";
+    const QString dbUserName = "postgres";
+    const QString dbPassword = "12345678";
+    const QString dbType = "QPSQL";
+};
+
+#endif // DATABASELMS_H