[wp-trac] [WordPress Trac] #16786: Setting permalinks programatically breaks custom post type URL's

[WordPress Trac]

#16786: Setting permalinks programatically breaks custom post type URL's
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 Reporter:  gilbitron      |      Owner:
     Type:  defect (bug)   |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  Rewrite Rules  |    Version:  3.1
 Severity:  minor          |   Keywords:  2nd-opinion
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 Using a function to programatically set permalinks (see attached) breaks
 custom post type URL's. A 404 page is displayed instead.

 Visiting the Permalinks settings page fixes the issue (you don't even need
 to save the permalinks settings).

 It turns out that you need to call $wp_rewrite->flush_rules() on the
 following page load for it to work, even though this is called at the end
 of the modify_permalinks() function.

 Possibly related to #16736

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Ticket URL: <http://core.trac.wordpress.org/ticket/16786>
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