cpphibernate/include/cpphibernate/driver/mariadb/context/create_update_context.h

#pragma once

#include "data_context.h"
#include "../impl/filter.h"

namespace cpphibernate {
namespace mariadb {

    /**
     * @brief Context that is used for create or update operations.
     */
    struct create_update_context
        : public data_context
    {
        const filter_t *    filter;         //!< Filter that is used for update operation.
                                            //!< Also indicated if this is an update or create operation.
        const table_t *     derived_table;  //!< Derived table if the current context is executed in a base table.
        const field_t *     owner_field;    //!< Field the current dataset is owned by (for foreign fields)
        std::string         owner_key;      //!< Key of the dataset the current dataset is owned by.
        ssize_t             index;          //!< Index of the current dataset in the container.

        /**
         * @brief Constructor. Creates a create context (no filters are passed).
         *
         * @param[in] p_schema      Mariadb driver schema to use for the operation.
         * @param[in] p_connection  Mariadb connection to execute queries with.
         * @param[in] p_dataset     Dataset to store in the context.
         */
        template<typename T_dataset>
        inline create_update_context(
            const schema_t&             p_schema,
            ::cppmariadb::connection&   p_connection,
            T_dataset&                  p_dataset);

        /**
         * @brief Constructor. Create an update context.
         *
         * @param[in] p_schema      Mariadb driver schema to use for the operation.
         * @param[in] p_connection  Mariadb connection to execute queries with.
         * @param[in] p_dataset     Dataset to store in the context.
         * @param[in] p_filter      Filters to use for the update operation.
         */
        template<typename T_dataset>
        inline create_update_context(
            const schema_t&             p_schema,
            ::cppmariadb::connection&   p_connection,
            T_dataset&                  p_dataset,
            const filter_t&             p_filter);

        /**
         * @brief Create a create context from the current context.
         */
        inline decltype(auto) make_create_context() const;

        /**
         * @brief Create an update context from the current context.
         */
        inline decltype(auto) make_update_context(const filter_t& p_filter) const;

        /**
         * @brief Returns true if this is an create context, false otherwise.
         */
        inline bool is_create() const;

        /**
         * @brief Returns true if this is an update context, false otherwise.
         */
        inline bool is_update() const;
    };

} }