API Special Interest Group/Current Design/Sorting

Analysis

Sorting is determined through the use of the 'sort_key' and 'sort_dir' query string parameters; the caller can specify these multiple times in order to generate a list of sory keys and directions.

The following sort directions values are supported:

Value	Description
asc	Ascending Order
desc	Descending Order

The sort keys and directions are applied in the order in which they are specified as query string parameters. For example, the following specifies 'key1' to be the first sort key (in ascending order) and 'key2' to be the second sort key (in descending order):

sort_key=key1&sort_dir=asc&sort_key=key2&sort_dir=desc

Current Design

Nova

Nova supports multiple sort keys and multiple sort directions.

Neutron

Neutron supports multiple sort keys and multiple sort directions.

Cinder

Cinder supports a single sort key and a single sort direction.

Note: This BP proposes support for multiple sort keys and multiple sort directions

Ironic

Ironic supports a single sort key and a single sort direction.

Glance

Glance supports a multiple sort keys and a single sort direction.