Add cargo entity

entities/cargo_entity.cpp

@@ -0,0 +1,21 @@
+#include "cargo_entity.h"
+
+cargo_entity::cargo_entity(const QString &title, int volume) : _title(title), _volume(volume) {
+    this->_id = volume;
+    auto hash = QCryptographicHash::hash(title.toLocal8Bit(), QCryptographicHash::Md5);
+    for (auto bit : hash) {
+        this->_id |= bit;
+    }
+}
+
+unsigned long long cargo_entity::id() {
+    return this->_id;
+}
+
+QString cargo_entity::title() {
+    return this->_title;
+}
+
+unsigned int cargo_entity::volume() {
+    return this->_volume;
+}

entities/cargo_entity.h

@@ -0,0 +1,24 @@
+#ifndef CARGO_ENTITY_H
+#define CARGO_ENTITY_H
+
+#include <QString>
+#include <QCryptographicHash>
+
+
+class cargo_entity
+{
+private:
+    unsigned long long _id;
+    QString _title;
+    unsigned int _volume;
+
+public:
+    cargo_entity() = default;
+    cargo_entity(const QString &title, int volume);
+
+    unsigned long long id();
+    QString title();
+    unsigned int volume();
+};
+
+#endif // CARGO_ENTITY_H