[wp-trac] [WordPress Trac] #37923: Introduce shared wp_blogmeta database table for multisite installation

[WordPress Trac]

#37923: Introduce shared wp_blogmeta database table for multisite installation
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 Reporter:  johnjamesjacoby                      |       Owner:  flixos90
     Type:  feature request                      |      Status:  reviewing
 Priority:  normal                               |   Milestone:  5.0
Component:  Networks and Sites                   |     Version:
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch has-unit-tests needs-      |     Focuses:  multisite
  testing ms-roadmap                             |
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Comment (by flixos90):

 [attachment:37923.17.diff] is what I hope to be the final patch before
 commit. Please review thoroughly.

 Changes over the last patches:
 * Make regular test for `is_site_meta_supported()` fail if it doesn't
 return true, i.e. when the database table is not present, but don't
 pollute other test results based on that assumption - those are skipped in
 such a case.
 * Change the notice text for when site meta is not supported to `The
 wp_blogmeta table is not installed. Please run the network database
 upgrade.`.
 * Refine some existing tests and add further tests for site meta cache
 clearing.
 * Remove unnecessary TODO annotations added earlier.
 * Adjust docblocks to follow standards more closely, and remove
 information that only applied to older patches from there.

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Ticket URL: <https://core.trac.wordpress.org/ticket/37923#comment:84>
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