[haiku-bugs] Re: [Haiku] #10071: No attributes of MIME "application/*" in Tracker's "Attributes" menu

  • From: "anevilyak" <trac@xxxxxxxxxxxx>
  • Date: Sun, 13 Apr 2014 18:31:39 -0000

#10071: No attributes of MIME "application/*" in Tracker's "Attributes" menu
   Reporter:  Giova84    |      Owner:  axeld
       Type:  bug        |     Status:  new
   Priority:  normal     |  Milestone:  R1
  Component:             |    Version:  R1/Development
  Applications/Tracker   |   Keywords:  People files lacks attributes view
 Resolution:             |  in Tracker
 Blocked By:             |   Blocking:
Has a Patch:  0          |   Platform:  x86

Comment (by anevilyak):

 After a bit more digging, the problem appears to be as follows, as best I
 can tell: For all the other top level mime types, we explicitly install an
 entry which defines attributes that all subtypes have in common (i.e.
 track and artist for audio). This in turn results in the supertype folder
 getting the full complement of attributes, including META:TYPE. However,
 we do no such thing for application/, as the types there don't really have
 anything in common. As such, that supertype folder is most likely simply
 created indirectly as a result of creating the first application/ subtype
 we come along. {{{ DatabaseLocation::_CreateType() }}}
 (storage/mime/DatabaseLocation.cpp) does this by simply creating the
 directory and nothing more, and as such, the application supertype never
 winds up being registered as installed.

 Assuming this analysis is correct, this presents two possible resolutions:
 1) Add a dummy application supertype entry during the system package build
 simply to house the meta attribute, or 2) when DatabaseLocation is forced
 to create the supertype folder on a subtype's behalf, it always at least
 writes the type attribute for the respective supertype folder. Thoughts?

Ticket URL: <https://dev.haiku-os.org/ticket/10071#comment:7>
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