has many fetch with join

test/backends/SessionTest.cpp

@@ -197,6 +197,9 @@ TEST_CASE_METHOD(SessionFixture, "Use session to find all objects with one-to-ma
 
   all_departments = find_result.release();
   for (auto it = all_departments.begin(); it != all_departments.end(); ++it) {
-      std::cout << "department: " << it->name << " (employees: " << it->employees.size() << ")\n";
+      std::cout << "department: " << it->name << " (id: " << it->id << ", employees: " << it->employees.size() << ")\n";
+      for (const auto& emp : it->employees) {
+          std::cout << "\temployee: " << emp->first_name << " " << emp->last_name << "( " << emp->id << ")\n";
+      }
   }
 }

test/models/department.hpp

@@ -38,7 +38,7 @@ struct employee {
         field::primary_key(op, "id", id);
         field::attribute(op, "first_name", first_name, 63);
         field::attribute(op, "last_name", last_name, 63);
-        field::belongs_to(op, "dep_id", dep, utils::fetch_type::EAGER);
+        field::belongs_to(op, "dep_id", dep, utils::fetch_type::LAZY);
     }
 };
 

test/models/flight.hpp

@@ -28,7 +28,7 @@ struct flight {
     namespace field = matador::access;
     using namespace matador::utils;
     field::primary_key(op, "id", id);
-    field::has_one(op, "airplane_id", plane, {utils::cascade_type::ALL, utils::fetch_type::EAGER});
+    field::has_one(op, "airplane_id", plane, {utils::cascade_type::ALL, fetch_type::EAGER});
     field::attribute(op, "pilot_name", pilot_name, 255);
   }
 };

test/orm/backend/test_result_reader.cpp

@@ -18,6 +18,8 @@ size_t test_result_reader::start_column_index() const {
   return 0;
 }
 
+void test_result_reader::unshift() {}
+
 void test_result_reader::read_value(const char *id, const size_t index, int8_t &value) {
   value = -8;
 }

test/orm/backend/test_result_reader.hpp

@@ -38,6 +38,7 @@ public:
   [[nodiscard]] const char *column(size_t index) const override;
   [[nodiscard]] utils::result<bool, utils::error> fetch() override;
   [[nodiscard]] size_t start_column_index() const override;
+  void unshift() override;
 
   void read_value(const char *id, size_t index, int8_t &value) override;
   void read_value(const char *id, size_t index, int16_t &value) override;

test/orm/sql/FieldTest.cpp

@@ -37,7 +37,7 @@ TEST_CASE("Test field", "[field]") {
   REQUIRE(bool_val.has_value());
   REQUIRE(bool_val.value());
 
-  f = sql::field("name", utils::blob{ 7,8,6,5,4,3 }, 0, 1);
+  f = sql::field("name", utils::blob{ 7,8,6,5,4,3 }, sql::field_type::Attribute, 0, 1);
   REQUIRE(f.index() == 1);
   REQUIRE(!f.is_null());
   REQUIRE(!f.is_integer());