Const qualifiers for entities, there needed

sea_transport/entities/IEntity.h

@@ -8,7 +8,7 @@ typedef unsigned long long entity_id;
 
 class IEntity : public ISerializable {
 public:
-   virtual entity_id id() = 0;
+   virtual entity_id id() const = 0;
 };
 
 #endif // IENTITY_H

sea_transport/entities/cargo_entity.cpp

@@ -8,15 +8,15 @@ cargo_entity::cargo_entity(const QString &title, unsigned int volume) : _title(t
     }
 }
 
-entity_id cargo_entity::id() {
+entity_id cargo_entity::id() const {
     return this->_id;
 }
 
-QString cargo_entity::title() {
+QString cargo_entity::title() const {
     return this->_title;
 }
 
-unsigned int cargo_entity::volume() {
+unsigned int cargo_entity::volume() const {
     return this->_volume;
 }
 

sea_transport/entities/cargo_entity.h

@@ -17,9 +17,9 @@ public:
     cargo_entity() = default;
     cargo_entity(const QString &title, unsigned int volume);
 
-    entity_id id();
-    QString title();
-    unsigned int volume();
+    entity_id id() const;
+    QString title() const;
+    unsigned int volume() const;
 
     void serialize(QDataStream &output);
     void deserialize(QDataStream &input);

sea_transport/entities/dpoint_entity.cpp

@@ -8,11 +8,11 @@ dpoint_entity::dpoint_entity(const QString &title) : _title(title) {
     }
 }
 
-entity_id dpoint_entity::id() {
+entity_id dpoint_entity::id() const {
     return this->_id;
 }
 
-QString dpoint_entity::title() {
+QString dpoint_entity::title() const {
     return this->_title;
 }
 

sea_transport/entities/dpoint_entity.h

@@ -19,8 +19,8 @@ public:
     dpoint_entity() = default;
     dpoint_entity(const QString &title);
 
-    entity_id id();
-    QString title();
+    entity_id id() const;
+    QString title() const;
     const QVector<storage_entity> storages();
 
     void serialize(QDataStream &output);

sea_transport/entities/storage_entity.cpp

@@ -8,11 +8,11 @@ storage_entity::storage_entity(unsigned int capacity) : _capacity(capacity) {
 }
 
 
-entity_id storage_entity::id() {
+entity_id storage_entity::id() const {
     return this->_id;
 }
 
-unsigned int storage_entity::capacity() {
+unsigned int storage_entity::capacity() const {
     return this->_capacity;
 }
 

sea_transport/entities/storage_entity.h

@@ -20,8 +20,8 @@ public:
     storage_entity() = default;
     storage_entity(unsigned int capacity);
 
-    entity_id id();
-    unsigned int capacity();
+    entity_id id() const;
+    unsigned int capacity() const;
     const QVector<cargo_entity> cargo();
 
     void add_cargo(cargo_entity object, bool &success);

sea_transport/entities/user_entity.cpp

@@ -4,15 +4,15 @@ user_entity::user_entity(const QString &login, const QString &password, UserRole
     this->_pwd_hash = QCryptographicHash::hash(password.toLocal8Bit(), QCryptographicHash::Sha3_256);
 }
 
-entity_id user_entity::id() {
+entity_id user_entity::id() const {
     return this->_id;
 }
 
-const QString user_entity::login() {
+const QString user_entity::login() const {
     return this->_login;
 }
 
-UserRole user_entity::role() {
+UserRole user_entity::role() const {
     return this->_role;
 }
 

sea_transport/entities/user_entity.h

@@ -23,9 +23,9 @@ public:
     user_entity() = default;
     user_entity(const QString &login, const QString &password, UserRole role);
 
-    entity_id id();
-    const QString login();
-    UserRole role();
+    entity_id id() const;
+    const QString login() const;
+    UserRole role() const;
     bool verify_password(const QString &password) const;
 
     void serialize(QDataStream &output);

sea_transport/entities/vessel_entity.cpp

@@ -7,15 +7,15 @@ vessel_entity::vessel_entity(const dpoint_entity &harbor, unsigned int capacity)
     this->_id = ++vessel_entity::__global_id;
 }
 
-entity_id vessel_entity::id() {
+entity_id vessel_entity::id() const {
     return this->_id;
 }
 
-const dpoint_entity vessel_entity::harbor() {
+const dpoint_entity vessel_entity::harbor() const {
     return this->_harbor;
 }
 
-unsigned int vessel_entity::capacity() {
+unsigned int vessel_entity::capacity() const {
     return this->_capacity;
 }
 

sea_transport/entities/vessel_entity.h

@@ -19,9 +19,9 @@ public:
     vessel_entity() = default;
     vessel_entity(const dpoint_entity &harbor, unsigned int capacity);
 
-    entity_id id();
-    const dpoint_entity harbor();
-    unsigned int capacity();
+    entity_id id() const;
+    const dpoint_entity harbor() const;
+    unsigned int capacity() const;
     const QVector<cargo_entity> cargo();
 
     void serialize(QDataStream &output);