column, placeholder and column_value generator progress

2025-11-12 15:53:03 +01:00
parent 9e76203bc9
commit 1c5b2b21b0
16 changed files with 93 additions and 236 deletions
@@ -1,126 +0,0 @@
-#ifndef QUERY_COLUMN_GENERATOR_HPP
-#define QUERY_COLUMN_GENERATOR_HPP
-
-#include "matador/utils/access.hpp"
-#include "matador/utils/field_attributes.hpp"
-#include "matador/utils/foreign_attributes.hpp"
-#include "matador/utils/primary_key_attribute.hpp"
-
-#include "matador/sql/column.hpp"
-
-#include "matador/object/repository.hpp"
-
-#include <string>
-#include <vector>
-#include <stack>
-
-namespace matador::sql {
-
-class column_generator
-{
-private:
-  column_generator(std::vector<column> &column_infos,
-                   const object::repository &ts,
-                   const std::string &table_name,
-                   bool force_lazy);
-
-public:
-  template < class Type >
-  static std::vector<column> generate(const object::repository &scm, const bool force_lazy = false) {
-    const auto info = scm.info<Type>();
-    if (!info) {
-      return {};
-    }
-    std::vector<column> columns;
-    column_generator gen(columns, scm, info.value().get().name(), force_lazy);
-    Type obj;
-    access::process(gen, obj);
-    return columns;
-  }
-
-  static std::vector<column> generate(const object::repository &scm, const std::string &name, bool force_lazy = false);
-
-  template < class V >
-  void on_primary_key(const char *id, V &, const utils::primary_key_attribute& /*attr*/ = utils::default_pk_attributes) {
-      push(id);
-  }
-  void on_revision(const char *id, uint64_t &/*rev*/);
-
-  template<typename Type>
-  void on_attribute(const char *id, Type &, const utils::field_attributes &/*attr*/ = utils::null_attributes) {
-      push(id);
-  }
-
-  template<class Pointer>
-  void on_belongs_to(const char *id, Pointer &x, const utils::foreign_attributes &attr) {
-    on_foreign_key(id, x, attr);
-  }
-  template<class Pointer>
-  void on_has_one(const char *id, Pointer &x, const utils::foreign_attributes &attr) {
-    on_foreign_key(id, x, attr);
-  }
-
-  template<class ContainerType>
-  void on_has_many(const char * /*id*/, ContainerType &, const char *, const utils::foreign_attributes &attr) {
-    if (attr.fetch() == utils::fetch_type::LAZY || force_lazy_) {
-      return;
-    }
-    const auto info = table_schema_.info<typename ContainerType::value_type::value_type>();
-    if (!info) {
-      return;
-    }
-
-    if (seen_tables.count(info->get().name()) == 0) {
-      auto it = seen_tables.insert(info->get().name()).first;
-      table_name_stack_.push(info.value().get().name());
-      typename ContainerType::value_type::value_type obj;
-      access::process(*this, obj);
-      table_name_stack_.pop();
-      seen_tables.erase(it);
-    }
-  }
-
-  template<class ContainerType>
-  void on_has_many_to_many(const char * /*id*/, ContainerType & /*cont*/, const char *join_column, const char *inverse_join_column, const utils::foreign_attributes &/*attr*/) {
-    push(join_column);
-    push(inverse_join_column);
-  }
-
-  template<class ContainerType>
-  static void on_has_many_to_many(const char * /*id*/, ContainerType & /*cont*/, const utils::foreign_attributes &/*attr*/) {}
-
-private:
-  template<class Pointer>
-  void on_foreign_key(const char *id, Pointer &, const utils::foreign_attributes &attr) {
-    if (attr.fetch() == utils::fetch_type::LAZY || force_lazy_) {
-      push(id);
-    } else {
-      const auto info = table_schema_.info<typename Pointer::value_type>();
-      if (!info) {
-        return;
-      }
-      if (seen_tables.count(info->get().name()) == 0) {
-        auto it = seen_tables.insert(info->get().name()).first;
-        table_name_stack_.push(info.value().get().name());
-        typename Pointer::value_type obj;
-        access::process(*this, obj);
-        table_name_stack_.pop();
-        seen_tables.erase(it);
-      }
-    }
-  }
-
-  void push(const std::string &column_name);
-
-private:
-  std::stack<std::string> table_name_stack_;
-  std::vector<column> &column_infos_;
-  std::unordered_set<std::string> seen_tables;
-  const object::repository &table_schema_;
-  int column_index{0};
-  bool force_lazy_{false};
-};
-
-}
-
-#endif //QUERY_COLUMN_GENERATOR_HPP