[jira] Updated: (COUCHDB-183) No pagination in Futon for reduce views

["Jason Davies (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/COUCHDB-183?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jason Davies updated COUCHDB-183:
---------------------------------

    Attachment: futon_reduce_pagination.diff

This patch enables pagination for reduce views in Futon.

Still to do:
 a) it currently always shows next/prev links even if they link to a page containing no rows
 b) if you continue to the next/prev page from a zero-row page it will show rows from the beginning/end of the keyspace respectively (giving the illusion of a circular ordering, perhaps not ideal!)

> No pagination in Futon for reduce views
> ---------------------------------------
>
>                 Key: COUCHDB-183
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-183
>             Project: CouchDB
>          Issue Type: Bug
>          Components: Administration Console
>    Affects Versions: 0.9
>            Reporter: Jason Davies
>         Attachments: futon_reduce_pagination.diff
>
>
> Futon doesn't support paginating of reduce views at the moment, which can be confusing for new users.  This is due to the difficulty of efficiently working out the total number of rows available from a reduce view.
> I propose displaying something like "Showing x-y rows of unknown" at the bottom, and showing a next/previous link if there are more results to be displayed.  An efficient way to calculate whether there are next/previous results would be to fetch 1 + rows_per_page + 1 (with appropriate offset parameter etc.)
> I did start working on a patch - will post it here when it is done.

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