renamed basic_types enumerations

source/orm/sql/connection.cpp

@@ -156,7 +156,7 @@ utils::result<size_t, utils::error> connection::execute(const std::string &sql)
 
 bool has_unknown_columns(const std::vector<object::attribute> &columns) {
   return std::any_of(std::begin(columns), std::end(columns), [](const auto &col) {
-    return col.type() == utils::basic_type::type_null;
+    return col.type() == utils::basic_type::Null;
   });
 }
 
@@ -228,7 +228,7 @@ utils::result<std::unique_ptr<statement_impl>, utils::error> connection::perform
           std::end(*result),
           [&col](const auto &value) { return value.name() == col.name(); }
         );
-        if (col.type() == utils::basic_type::type_null && rit != result->end()) {
+        if (col.type() == utils::basic_type::Null && rit != result->end()) {
           const_cast<object::attribute&>(col).change_type(rit->type());
         }
       }