sqt::ColumnUpdater< CONFLICT_ACTION, ASSIGNMENTS > Class Template Reference

#include <sqt/orm/querier/updater/column_updater.h>

Inheritance diagram for sqt::ColumnUpdater< CONFLICT_ACTION, ASSIGNMENTS >:

Description

template<ConflictAction CONFLICT_ACTION, AssignmentType... ASSIGNMENTS>
class sqt::ColumnUpdater< CONFLICT_ACTION, ASSIGNMENTS >

A primary updater that updates values of specific columns in the table.

Template Parameters

CONFLICT_ACTION	The conflict action to be used when a unique constraint violation occurs.
ASSIGNMENTS	The assignment types that the updater uses for updating. Each assignment type must satisfy the sqt::AssignmentType concept.

This primary updater updates values of specific columns in the table without any condition. The columns to be updated are specified by the ASSIGNMENTS types.

To create instances of this updater, use the sqt::DataContext::MakeUpdater(ASSIGNMENTS&&... assignments) method.

This class template satisfies the sqt::QuerierType concept.

See also

sqt::AssignmentType

sqt::ConflictAction

sqt::DataContext<>::MakeUpdater(ASSIGNMENTS&&... assignments)

sqt::QuerierType

Static Public Member Functions
static std::string_view	BuildSQL ()
static constexpr auto	BuildPlaceholderBinders () noexcept

Public Member Functions
constexpr	ColumnUpdater (ASSIGNMENTS... assignments) noexcept
void	BindInlineParameters (Statement &statement) const
Public Member Functions inherited from sqt::WhereCapability< ColumnUpdater< CONFLICT_ACTION, ASSIGNMENTS... > >
constexpr auto	Where (PREDICATE &&predicate) const

Static Public Attributes
static constexpr std::size_t	ParameterIndex = 1
static constexpr std::size_t	ParameterCount = (ASSIGNMENTS::ParameterCount + ... + 0)