[Trac-tickets] [The Trac Project] #2053: next/previous changeset links to take in account svn_authz permissions

[The Trac Project]

#2053: next/previous changeset links to take in account svn_authz permissions
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 Reporter:  dragisha at m3w.org  |       Owner:  jonas
     Type:  enhancement       |      Status:  new  
 Priority:  low               |   Milestone:       
Component:  changeset view    |     Version:  0.9b1
 Severity:  minor             |   Keywords:                    |  
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 Would be nice to expand on [2239] and former svn_authz work so changeset
 browsing would be more usable. As "Next Changeset" and "Previous
 Changeset" links can point to changeset where current user will get
 Permission Denied when clicked, it would be good do do one of few possible
 things.

  * To calculate, while rendering changeset nr. XYZ, what is next and
 previous changeset current user can see, and create links accordingly.
 This can be expensive, and done in vain especially if it's true that most
 users won't surf changesets that way;
  * To create these two link as "relative" to current changeset. Maybe only
 ".../changeset/(next|previous" pair, if referer field is relable, or
 "../changeset/XYZ/(next/previous)" if it's not reliable. That way, next
 and prev would be calculated only when (and if) needed. Time spent
 calculating access would be same, just spent better, as if user clicks
 through next (or prev) until he gets to visible changeset. All other
 resource spending involved in that "chain" clicking" would not be needed.

   Other possibility is to make some other ordering scheme for changesets,
 but (IMO) with isolation of projects inside bigger svn repos, simple
 next/prev is all ordering we need. With this enhancement done, we can make
 many smaller projects running of big svn repos, and still have no
 interferences at all.

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Ticket URL: <http://projects.edgewall.com/trac/ticket/2053>
The Trac Project <http://trac.edgewall.com/>