![]() That the join statement is set up correctly and it will not cause any issues with the pagination results. We need to be attentive and use RelationSubqueryExistsStrategy or modify sql query with group by or other methods to ensure ![]() We will get duplicate records of user 1 with different roles, which may affect the pagination results. For example, if user with id 1 has 2 roles, * from users left join user_roles on users. To use LimitOffsetFilter, you pass it a query instance and a tuple containing the limit and offset values. This is useful for paginating results when displaying them to the user,Īs it allows you to retrieve a specific page of results rather than retrieving all results at once. It is used to limit the number of results returned by the query and to specify a starting point (offset) in the results. LimitOffsetFilter applies limit and offset pagination to a query. Order by name nulls last, price desc, id Select * from product order by price desc, id logic_expr - logical operator, such as and_ or or_, that is used to produce a conjunction of the border expressions.Ĭlass ProductFilterSchema ( BaseModel ): ordering : list | None ordering_field1 = "field1" ordering_field2 = "-field2" ordering_field3 = "field3" filter_params = ProductFilterSchema ( ordering = ).left_lookup_expr/right_lookup_expr - lookup expressions, such as operators from the operator module ( op.ge, op.gt, op.le, op.lt).field - a field in a database model that the RangeFilter will be applied to.The RangeFilter class is used to filter records in a database by a specific field within a specified range from start to end values. Sqlalchemy-filterset.operators RangeFilter ¶ Here are some examples of sql conditions to be generated by various lookup expressions: operatorĪll available operators can be found in the following modules: Select * from product where name like 'some name' Select * from product where id in (123, 345, 678) Class ProductFilterSchema ( BaseModel ): field1 : int | None field2 : str | None value1 = 123 value2 = "some string" filter_params = ProductFilterSchema ( field1 = value1, field2 = value2 ).
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