Classe « Query »

Méthode sqlalchemy.orm.Query.correlate

Signature de la méthode correlate

def correlate(self, *fromclauses) 

Description

correlate.__doc__

Return a :class:`.Query` construct which will correlate the given
        FROM clauses to that of an enclosing :class:`.Query` or
        :func:`~.expression.select`.

        The method here accepts mapped classes, :func:`.aliased` constructs,
        and :func:`.mapper` constructs as arguments, which are resolved into
        expression constructs, in addition to appropriate expression
        constructs.

        The correlation arguments are ultimately passed to
        :meth:`_expression.Select.correlate`
        after coercion to expression constructs.

        The correlation arguments take effect in such cases
        as when :meth:`_query.Query.from_self` is used, or when
        a subquery as returned by :meth:`_query.Query.subquery` is
        embedded in another :func:`_expression.select` construct.