moved schema to query namespace

2025-12-17 15:15:04 +01:00
parent 9eec5b64fb
commit 6307850721
6 changed files with 20 additions and 19 deletions
@@ -0,0 +1,77 @@
+#ifndef MATADOR_SCHEMA_HPP
+#define MATADOR_SCHEMA_HPP
+
+#include "matador/object/repository.hpp"
+
+#include "matador/sql/query_context.hpp"
+
+#include "matador/query/table.hpp"
+
+namespace matador::sql {
+class connection_pool;
+}
+
+namespace matador::query {
+
+class schema;
+
+using schema_ref = std::reference_wrapper<schema>;
+
+class schema_repository final {
+public:
+    utils::result<void, utils::error> add(const std::string &name, const schema &schema);
+    utils::result<void, utils::error> remove(const std::string &name);
+
+    [[nodiscard]] utils::result<schema_ref, utils::error> get(const std::string &name);
+
+private:
+    std::unordered_map<std::string, schema> schema_map_;
+};
+
+class schema final {
+public:
+  explicit schema(sql::connection_pool &pool);
+  schema(sql::connection_pool &pool, const std::string &name);
+
+  template<typename Type>
+  [[nodiscard]] utils::result<void, utils::error> attach(const std::string &name, const std::string &parent = "") {
+    return repo_.attach<Type>(name, parent);
+  }
+
+  template<typename Type, typename SuperType>
+  [[nodiscard]] utils::result<void, utils::error> attach(const std::string &name) {
+    return repo_.attach<Type, SuperType>(name);
+  }
+
+  [[nodiscard]] utils::result<void, utils::error> create() const;
+  [[nodiscard]] utils::result<void, utils::error> drop() const;
+
+  template<typename Type>
+  [[nodiscard]] utils::result<void, utils::error> drop_table();
+  [[nodiscard]] utils::result<void, utils::error> drop_table(const std::string &table_name) const;
+
+  [[nodiscard]] utils::result<std::vector<object::attribute>, utils::error> describe_table(const std::string &table_name) const;
+  [[nodiscard]] utils::result<bool, utils::error> table_exists(const std::string &table_name) const;
+
+private:
+   [[nodiscard]] sql::query_context build_add_constraint_context( const object::repository_node& node, const object::restriction& cons ) const;
+   [[nodiscard]] sql::query_context build_drop_constraint_context( const object::repository_node& node, const object::restriction& cons ) const;
+
+private:
+  object::repository repo_;
+  std::unordered_map<std::type_index, table> table_map_;
+  sql::connection_pool &pool_;
+};
+
+template<typename Type>
+utils::result<void, utils::error> schema::drop_table() {
+  auto info = repo_.info<Type>();
+  if (info) {
+    return drop_table(info->get().name());
+  }
+
+  return utils::failure(info.err());
+}
+
+}
+#endif //MATADOR_SCHEMA_HPP