[wp-trac] [WordPress Trac] #23650: make get_space_allowed() filterable

[WordPress Trac]

#23650: make get_space_allowed() filterable
-----------------------------+-------------------------
 Reporter:  jkudish          |       Type:  enhancement
   Status:  new              |   Priority:  normal
Milestone:  Awaiting Review  |  Component:  Upload
  Version:  3.4              |   Severity:  normal
 Keywords:  has-patch        |
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 When the `blog_upload_space` option is set to `0`, instead of returning
 `0`,  `get_space_allowed()` returns the default value which is currently
 hardcoded to `50` in core.

 As discussed in #18119 and committed in [19314], the function should
 return `0` if the option is set to `0`. However this was reverted in
 [19654] (see #19538). So I am not sure which is the desired behaviour.

 The attached patch adds filters for the default value and for the returned
 value. This is useful for scenarios where you don't want it to fallback to
 `50` if the option is accidentally set to `0`, and you want to set your
 own default.

 I can adjust the patch if the consensus is that an option of `0` should in
 fact return `0`.

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Ticket URL: <http://core.trac.wordpress.org/ticket/23650>
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