Where()

template<typename QUERIER, template< typename, typename > typename DECORATOR = WhereDecorator>

template<PredicateType PREDICATE>

auto sqt::WhereCapability< QUERIER, DECORATOR >::Where ( PREDICATE && predicate ) const

constexpr

Creates a decorator that adds a WHERE clause to the current querier.

Template Parameters

PREDICATE

The predicate type that defines the condition for the WHERE clause. It must satisfy the sqt::PredicateType concept.

Parameters

predicate

The predicate instance that defines the condition for the WHERE clause.

Returns

A DECORATOR instance. It will be a sqt::WhereDecorator<> for non-selecters, or a sqt::WhereSelectDecorator<> for selecters.

See also

sqt::PredicateType

sqt::WhereDecorator<>

sqt::WhereSelectDecorator<>