[OASIS Issue Tracker] (CAMP-198) select_attr for collections

[OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>]

    [ https://issues.oasis-open.org/browse/CAMP-198?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=62760#comment-62760 ] 

Anish Karmarkar commented on CAMP-198:
--------------------------------------

This is about column filtering on the collection. select_attr applies to the resource not the attributes of items in a collection. We either need to overload select_attr to apply to collection attributes OR create a new query param to deal w/ this

> select_attr for collections
> ---------------------------
>
>                 Key: CAMP-198
>                 URL: https://issues.oasis-open.org/browse/CAMP-198
>             Project: OASIS Cloud Application Management for Platforms (CAMP) TC
>          Issue Type: New Feature
>          Components: Spec
>    Affects Versions: 1.2
>            Reporter: Anish Karmarkar
>            Assignee: Michael Norman
>            Priority: Minor
>             Fix For: 1.2
>
>
> [Mike Norman is having difficulty w/ Jira login, posting on his behalf --Anish]
> The spec says:
> -----
> 6.5 Request Parameters
> To retrieve a subset of the attributes in a resource, the Consumer MAY use the ‘select_attr’ query parameter in conjunction with the HTTP GET
> -----
> a) Can we add this (or a similar filter) the collection resources in such a way that it relates to the attributes of the entities within the collection, not to the collection itself.
> b) Given that if you leave off the uri, the attribute-filtered collections can contain duplicates we need to define the behaviour around duplication.  It would be helpful to have a version that shows only non-duplicated values so you can retrieve the set of possible values for an attribute (a kind of SELECT DISTINCT/Group By).  We need this functionality in the UI to build filters.
>  



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