fixed backend test compilation

test/backends/StatementTest.cpp

@@ -1,9 +1,12 @@
 #include <catch2/catch_test_macros.hpp>
 
-#include "matador/sql/column_definition.hpp"
-#include "matador/sql/condition.hpp"
+#include "matador/object/attribute_definition.hpp"
+
 #include "matador/sql/connection.hpp"
-#include "matador/sql/query.hpp"
+#include "matador/sql/column_generator.hpp"
+
+#include "matador/query/condition.hpp"
+#include "matador/query/query.hpp"
 
 #include "matador/object/object_ptr.hpp"
 
@@ -12,6 +15,8 @@
 #include "models/airplane.hpp"
 
 using namespace matador::sql;
+using namespace matador::object;
+using namespace matador::query;
 using namespace matador::test;
 
 namespace matador::test::detail {
@@ -35,29 +40,29 @@ public:
   }
 
 protected:
-  std::vector<matador::object_ptr<airplane>> planes{
+  std::vector<object_ptr<airplane>> planes{
     matador::test::detail::make_object_ptr<airplane>(1, "Airbus", "A380"),
     matador::test::detail::make_object_ptr<airplane>(2, "Boeing", "707"),
     matador::test::detail::make_object_ptr<airplane>(3, "Boeing", "747")
   };
 };
 
-TEST_CASE_METHOD(StatementTestFixture, "Create prepared statement", "[statement]")
-{
+TEST_CASE_METHOD(StatementTestFixture, "Create prepared statement", "[statement]") {
   using namespace matador::utils;
-  schema.attach<airplane>("airplane");
+  REQUIRE(schema.attach<airplane>("airplane"));
   table ap{"airplane"};
   SECTION("Insert with prepared statement and placeholder") {
     auto stmt = query::insert()
     .into("airplane", column_generator::generate<airplane>(schema, true))
     .values<airplane>()
     .prepare(db);
+    REQUIRE(stmt.is_ok());
 
     for (const auto &plane: planes) {
-      auto res = stmt.bind(*plane).execute();
+      auto res = stmt->bind(*plane).execute();
       REQUIRE(res.is_ok());
       REQUIRE(*res == 1);
-      stmt.reset();
+      stmt->reset();
     }
 
     auto result = query::select(column_generator::generate<airplane>(schema, true))
@@ -87,8 +92,9 @@ TEST_CASE_METHOD(StatementTestFixture, "Create prepared statement", "[statement]
       .from(ap)
       .where("brand"_col == _)
       .prepare(db);
+    REQUIRE(stmt.is_ok());
 
-    auto result = stmt.bind(0, "Airbus")
+    auto result = stmt->bind(0, "Airbus")
       .fetch<airplane>();
 
     REQUIRE(result.is_ok());
@@ -98,9 +104,9 @@ TEST_CASE_METHOD(StatementTestFixture, "Create prepared statement", "[statement]
       REQUIRE(i.model == planes[0]->model);
     }
 
-    stmt.reset();
+    stmt->reset();
 
-    result = stmt.bind(0, "Boeing")
+    result = stmt->bind(0, "Boeing")
       .fetch<airplane>();
 
     size_t index{1};