finished relation completer

2025-07-07 15:50:09 +02:00
parent c974628bee
commit e85543719c
17 changed files with 396 additions and 142 deletions
@@ -0,0 +1,51 @@
+#ifndef JOIN_COLUMNS_COLLECTOR_HPP
+#define JOIN_COLUMNS_COLLECTOR_HPP
+
+#include "matador/utils/access.hpp"
+#include "matador/utils/field_attributes.hpp"
+
+#include <string>
+
+namespace matador::object {
+struct join_columns {
+  std::string join_column;
+  std::string inverse_join_column;
+};
+
+class join_columns_collector final {
+public:
+    template<class Type>
+    join_columns collect() {
+        join_columns_ = {};
+        Type obj;
+
+        access::process(*this, obj);
+
+        return join_columns_;
+    }
+    template < class V >
+    void on_primary_key(const char * /*id*/, V &, std::enable_if_t<std::is_integral_v<V> && !std::is_same_v<bool, V>>* = nullptr) {}
+    static void on_primary_key(const char * /*id*/, std::string &, size_t) {}
+    static void on_revision(const char * /*id*/, unsigned long long &/*rev*/) {}
+    template<typename Type>
+    static void on_attribute(const char * /*id*/, Type &, const utils::field_attributes &/*attr*/ = utils::null_attributes) {}
+    template<class Pointer>
+    static void on_belongs_to(const char * /*id*/, Pointer &obj, const utils::foreign_attributes &attr) {}
+    template<class Pointer>
+    static void on_has_one(const char * /*id*/, Pointer &obj, const utils::foreign_attributes &attr) {}
+    template<class ContainerType>
+    static void on_has_many(ContainerType &, const char *join_column, const utils::foreign_attributes &attr) {}
+    template<class ContainerType>
+    void on_has_many_to_many(const char * /*id*/, ContainerType &/*c*/, const char *join_column, const char *inverse_join_column, const utils::foreign_attributes &/*attr*/) {
+        join_columns_.join_column = join_column;
+        join_columns_.inverse_join_column = inverse_join_column;
+    }
+    template<class ContainerType>
+    static void on_has_many_to_many(const char * /*id*/, ContainerType &/*c*/, const utils::foreign_attributes &/*attr*/) {}
+
+private:
+    join_columns join_columns_;
+};
+}
+
+#endif //JOIN_COLUMNS_COLLECTOR_HPP