[wp-trac] [WordPress Trac] #45423: Use custom capabilities for the block editor's reusable blocks.

[WordPress Trac]

#45423: Use custom capabilities for the block editor's reusable blocks.
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 Reporter:  peterwilsoncc                 |       Owner:  pento
     Type:  defect (bug)                  |      Status:  assigned
 Priority:  normal                        |   Milestone:  5.2
Component:  Role/Capability               |     Version:  5.0
 Severity:  normal                        |  Resolution:
 Keywords:  needs-patch needs-unit-tests  |     Focuses:
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Comment (by johnbillion):

 I concur with Felix. Introducing new primitive capabilities is impossible
 due to the use of custom roles that also potentially need to receive the
 new caps. Beyond the default roles in WordPress, a custom role could be
 given the `edit_posts` capability but would never receive the
 `edit_blocks` capability with this upgrade routine.

 These caps should be granted dynamically via the `map_meta_cap` or
 `user_has_cap` filter.

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Ticket URL: <https://core.trac.wordpress.org/ticket/45423#comment:11>
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