added date_type_t, time_type_t and timestamp, ensure allocated postgres resources are released, split repository into basic_repository and repository.

include/matador/object/object_info.hpp

@@ -9,35 +9,20 @@
 namespace matador::object {
 class repository_node;
 
-// template<typename Type>
-// class observer_ptr {
-// public:
-//   explicit observer_ptr(std::unique_ptr<observer<Type>> &&o)
-//   : observer_(std::move(o)) {}
-//
-//   operator bool() const { return observer_ != nullptr; }
-//
-//   observer<Type> *get() const { return observer_.get(); }
-//   observer<Type> &operator*() const { return *observer_; }
-//   observer<Type> *operator->() const { return observer_.get(); }
-//
-// private:
-//   std::unique_ptr<observer<Type>> observer_;
-// };
 template<typename Type>
 class object_info final : public basic_object_info {
 public:
   using create_func = std::function<std::unique_ptr<Type>()>;
 
-  object_info(const std::shared_ptr<repository_node>& node,
-              std::shared_ptr<class object> &&obj,
+  object_info(const repository_node& node,
+              const std::shared_ptr<class object> &obj,
               std::vector<std::unique_ptr<observer<Type>>>&& observers,
               create_func&& creator)
-  : basic_object_info(node, std::move(obj))
+  : basic_object_info(node, obj)
   , creator_(std::move(creator))
   , observers_(std::move(observers)){}
 
-  explicit object_info(const std::shared_ptr<repository_node>& node)
+  explicit object_info(const repository_node& node)
   : basic_object_info(node, {}) {
   }
 
@@ -46,13 +31,13 @@ public:
 
   void on_attach() const override {
     for (auto &observer : observers_) {
-      observer->on_attach(*node_, prototype_);
+      observer->on_attach(node_, prototype_);
     }
   }
 
   void on_detach() const override {
     for (auto &observer : observers_) {
-      observer->on_detach(*node_, prototype_);
+      observer->on_detach(node_, prototype_);
     }
   }