moved query macro generated class to namespace matador::query::meta

demo/main.cpp

@@ -3,6 +3,7 @@
 #include "matador/sql/query_macro.hpp"
 
 #include "matador/query/criteria.hpp"
+#include "matador/query/query.hpp"
 
 #include "matador/object/object_ptr.hpp"
 #include "matador/object/repository.hpp"
@@ -143,20 +144,21 @@ struct matador::utils::data_type_traits<job::job_mode, void> {
     }
 };
 
-QUERY_HELPER( authors, id, first_name, last_name, date_of_birth, year_of_birth, distinguished )
+QUERY_HELPER( authors, AUTHOR, id, first_name, last_name, date_of_birth, year_of_birth, distinguished )
 
-QUERY_HELPER( books, id, author_id, title, published_in )
+QUERY_HELPER( books, BOOK, id, author_id, title, published_in )
 
-QUERY_HELPER( job, id, payload, type, description, state, mode )
+QUERY_HELPER( job, JOB, id, payload, type, description, state, mode )
 
-QUERY_HELPER( payload, id )
+QUERY_HELPER( payload, PAYLOAD, id )
 
-QUERY_HELPER( temporary_table, id );
+QUERY_HELPER( temporary_table, TEMPORARY_TABLE, id );
 
 int main() {
     using namespace matador::sql;
     using namespace matador::object;
     using namespace matador::utils;
+    using namespace matador::query::meta;
 
     const std::string env_var{"MATADOR_BACKENDS_PATH"};
 
@@ -233,19 +235,20 @@ int main() {
     //  .values( {3, "Misery", mc.id, 1984} )
     //  .execute();
     //
-    // auto select_books_sql = c.query( s )
-    //                          .select( qh::books.columns, {qh::authors.last_name} )
-    //                          .from( qh::books )
-    //                          .join_left( qh::authors )
-    //                          .on( qh::books.author_id == qh::authors.id )
-    //                          .where( qh::books.published_in < 2008 && qh::authors.last_name == "King" )
-    //                          .group_by( qh::books.published_in )
-    //                          .order_by( qh::books.title ).asc()
-    //                          .limit( 5 )
-    //                          .offset( 2 )
-    //                          .fetch_all();
-    //
-    // for (const auto& r: select_books_sql) { std::cout << "R: " << r.at( qh::books.title ) << ", " << r.at( qh::authors.last_name ) << "\n"; }
+  auto select_books_sql = matador::query::query::select( BOOK, {AUTHOR.last_name} )
+    .from( BOOK )
+    .join_left( AUTHOR )
+    .on( BOOK.author_id == AUTHOR.id )
+    .where( BOOK.published_in < 2008 && AUTHOR.last_name == "King" )
+    .group_by( BOOK.published_in )
+    .order_by( BOOK.title ).asc()
+    .limit( 5 )
+    .offset( 2 )
+    .fetch_all(c);
+
+  for (const auto& r: *select_books_sql) {
+    std::cout << "R: " << r.at( BOOK.title ) << ", " << r.at( AUTHOR.last_name ) << "\n";
+  }
     // // SELECT book.title, book.id, book.author_id, book.published_in, author.name
     // // FROM book
     // // INNER JOIN author ON book.author_id = author.id

include/matador/query/table.hpp

@@ -30,6 +30,8 @@ public:
   [[nodiscard]] const std::string& name() const;
   [[nodiscard]] const std::string& alias() const;
   [[nodiscard]] const std::vector<column>& columns() const;
+
+  operator const std::vector<column>&() const;
 private:
   friend class column;
 

include/matador/sql/query_macro.hpp

@@ -9,16 +9,16 @@
 #include <string>
 #include <ostream>
 
-#define FIELD(x) const query::column x{*this, #x, ""};
+#define FIELD(x) const column x{*this, #x, ""};
 
-#define QUERY_HELPER(C, ...) \
-namespace matador::qh {     \
+#define QUERY_HELPER(C, V, ...) \
+namespace matador::query::meta {     \
 namespace internal {                      \
-struct C##_query : query::table {           \
+struct C##_query : table {           \
 C##_query() : table(#C) {}                            \
 MAP(FIELD, __VA_ARGS__) \
 }; }                     \
-static const internal:: C##_query C;  \
+static const internal:: C##_query V;  \
 }
 
 #endif //QUERY_QUERY_HELPER_HPP

source/orm/query/table.cpp

@@ -54,6 +54,10 @@ const std::vector<column>& table::columns() const {
   return columns_;
 }
 
+table::operator const std::vector<column>&() const {
+  return columns_;
+}
+
 table operator ""_tab(const char *name, size_t len) {
   return {{name, len}};
 }