session progress

include/matador/orm/session_query_builder.hpp

@@ -142,9 +142,8 @@ public:
     if (pk_.is_null()) {
       entity_query_data_.pk_column_name = id;
     } else if (pk_.is_integer()) {
-      const auto t = std::make_shared<sql::table>(table_info_stack_.top().info.get().name());
       auto v = *pk_.as<V>();
-        auto c = sql::column{t, id, ""};
+      auto c = sql::column{table_info_stack_.top().table, id, ""};
       auto co = std::make_unique<query::condition<sql::column, V>>(c, query::basic_condition::operand_type::EQUAL, v);
       entity_query_data_.where_clause = std::move(co);
       entity_query_data_.pk_column_name = id;
@@ -281,7 +280,6 @@ public:
     append_join(
       sql::column{relation->second, join_columns.join_column},
       sql::column{next->second, pk->name()}
-      // sql::column{std::make_shared<sql::table>(info->get().name()), pk->name()}
     );
   }
 

include/matador/sql/internal/query_result_impl.hpp

@@ -12,6 +12,8 @@
 
 #include <memory>
 #include <string>
+#include <typeindex>
+#include <unordered_set>
 
 namespace matador::utils {
 class value;
@@ -82,14 +84,14 @@ public:
   void on_attribute(const char *id, utils::value &val, const utils::field_attributes &attr = utils::null_attributes);
 
   template < class Pointer >
-  void on_belongs_to(const char * /*id*/, Pointer &x, const utils::foreign_attributes &attr)
-  {
+  void on_belongs_to(const char * /*id*/, Pointer &x, const utils::foreign_attributes &attr) {
     if (x.empty()) {
       x = new typename Pointer::value_type;
     }
     if (attr.fetch() == utils::fetch_type::LAZY) {
       pk_reader_.read(*x, column_index_++);
-    } else {
+    } else if (const auto ti = std::type_index(typeid(*x)); processed_types_.count(ti) == 0) {
+      processed_types_.insert(ti);
       access::process(*this, *x);
     }
   }
@@ -101,8 +103,8 @@ public:
     }
     if (attr.fetch() == utils::fetch_type::LAZY) {
       pk_reader_.read(*x, column_index_++);
-    } else {
-      access::process(*this, *x);
+    } else if (const auto ti = std::type_index(typeid(*x)); processed_types_.count(ti) == 0) {
+        processed_types_.insert(ti);
     }
   }
 
@@ -114,7 +116,8 @@ public:
   void on_has_many(const char * /*id*/, ContainerType &cont, const char * /*join_column*/, const utils::foreign_attributes &attr) {
       if ( attr.fetch() == utils::fetch_type::LAZY ) {
           // pk_reader_.read(*id, column_index_++);
-      } else {
+      } else if (const auto ti = std::type_index(typeid(typename ContainerType::value_type::value_type)); processed_types_.count(ti) == 0) {
+          processed_types_.insert(ti);
           auto obj = std::make_unique<typename ContainerType::value_type::value_type>();
           // typename ContainerType::value_type x(new typename ContainerType::value_type::value_type);
           access::process(*this, *obj);
@@ -145,6 +148,7 @@ public:
     if (!*fetched) {
       return false;
     }
+    processed_types_.insert(typeid(Type));
     access::process(*this, obj);
     return true;
   }
@@ -156,6 +160,7 @@ protected:
   std::vector<object::attribute_definition> prototype_;
   std::unique_ptr<query_result_reader> reader_;
   detail::pk_reader pk_reader_;
+  std::unordered_set<std::type_index> processed_types_;
 };
 
 namespace detail {

test/backends/SessionFixture.cpp

@@ -1,5 +1,7 @@
 #include "SessionFixture.hpp"
 
+#include "catch2/catch_test_macros.hpp"
+
 namespace matador::test {
 
 SessionFixture::SessionFixture()
@@ -14,7 +16,7 @@ SessionFixture::~SessionFixture() {
 
 void SessionFixture::drop_table_if_exists(const std::string &table_name) const {
   if (ses.table_exists(table_name)) {
-    ses.drop_table(table_name);
+    REQUIRE(ses.drop_table(table_name));
   }
 }
 

test/models/department.hpp

@@ -14,6 +14,7 @@ struct department {
     unsigned int id{};
     std::string name;
     std::vector<object::object_ptr<employee>> employees;
+    object::object_ptr<employee> manager;
 
     template<typename Operator>
     void process(Operator &op) {
@@ -21,6 +22,7 @@ struct department {
         field::primary_key(op, "id", id);
         field::attribute(op, "name", name, 63);
         field::has_many(op, "employees", employees, "dep_id", utils::fetch_type::EAGER);
+        field::belongs_to(op, "manager_id", manager, utils::fetch_type::EAGER);
     }
 };