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limit_query

LimitQuery

Modifies the select query with limit clause.

Source code in ormar/queryset/queries/limit_query.py
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class LimitQuery:
    """
    Modifies the select query with limit clause.
    """

    def __init__(self, limit_count: Optional[int]) -> None:
        self.limit_count = limit_count

    def apply(self, expr: sqlalchemy.sql.select) -> sqlalchemy.sql.select:
        """
        Applies the limit clause.

        :param expr: query to modify
        :type expr: sqlalchemy.sql.selectable.Select
        :return: modified query
        :rtype: sqlalchemy.sql.selectable.Select
        """
        if self.limit_count:
            expr = expr.limit(self.limit_count)
        return expr

apply(expr)

Applies the limit clause.

Parameters:

Name Type Description Default
expr sqlalchemy.sql.select

query to modify

required

Returns:

Type Description
sqlalchemy.sql.selectable.Select

modified query

Source code in ormar/queryset/queries/limit_query.py
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def apply(self, expr: sqlalchemy.sql.select) -> sqlalchemy.sql.select:
    """
    Applies the limit clause.

    :param expr: query to modify
    :type expr: sqlalchemy.sql.selectable.Select
    :return: modified query
    :rtype: sqlalchemy.sql.selectable.Select
    """
    if self.limit_count:
        expr = expr.limit(self.limit_count)
    return expr