[wp-trac] [WordPress Trac] #19863: Add filters to export_wp() process for granular export control

[WordPress Trac]

#19863: Add filters to export_wp() process for granular export control
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 Reporter:  scottconnerly  |      Owner:
     Type:  enhancement    |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  Export         |    Version:  3.3.1
 Severity:  normal         |   Keywords:  needs-patch
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 The only hook that allows for export customization right now is
 do_action('export_wp'). There should be a filter on the $args in the same
 area as well as actions in the export form so additional export filters
 can be defined on any post type (especially the custom post types)

 Use case example would be the shopping experience I'm building as a
 plugin. Administrators need to be able to export order CSVs for
 fulfillment systems, inventory systems, accounting systems, etc. I need to
 be able to filter by date range as well as some custom taxonomies I have
 defined to manage the order's present status.

 Then I need to be able to generate CSVs rather than XMLs in the output.
 For that I can currently hijack the process at do_action('export_wp'), but
 it'd be better if there were hooks all through the export process that
 allowed me to output different headers, adjust the query, and manipulate
 the retrieved data.

 Essentially, we're currently allowed to import any custom post content via
 CSV in a bespoke manner, but there's no way to get it back out in a
 similar format.

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Ticket URL: <http://core.trac.wordpress.org/ticket/19863>
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