This is a bug that combines Hierarchy, Versioned and LeftAndMain admins and CMSSiteTreeFilters.
This bug can be reproduced by having a large site tree with enough deleted pages in it so it doesn't
pre load all the children pages when initially opening an admin. Filter by either 'All pages including deleted'
or 'Deleted pages'. For CMS users it will look like deleted pages are gone.
The solution involves a couple of smaller fixes in both CMS and framework modules.
1) Ensure that 'numHistoricalChildren' are used instead of 'numChildren' when dealing with deleted pages
2) LeftAndMain::currentPage() deletes all the 'marking' cache previously built up by Hierarchy::markPartialTree()
3) Use Versioned::get_included_deleted() instead of raw DB queries against the DataObject tables when calculating parents in CMSSiteTreeFilter
Rendering potentially 1000s of nodes can exceed the CPU and memory constraints
of a normal PHP process, as well as the rendering capabilities of browsers.
Set a hard maximum for the renderable nodes, deferring to a "show as list" action
in the main CMS tree. For TreeDropdownField, we don't have the list fallback option,
so ask the user to search for the node title instead.
Also makes both the "node_threshold_total" and "node_threshold_leaf" values configurable
- Renamed $minNodeCount to more accurate $nodeCountThreshold
- The $minNodeCount attribute wasn't properly respected
during actual querying, so SilverStripe would always traverse
the entire tree (and load all objects into memory),
before then marking nodes as "unexpanded", which prevents
them from actually being rendered.
- Fixes nodes on search results to be expanded by default
- Fixes nodes on search results to correctly ajax-expand
MINOR Fixed HierarchyTest assertions around including grand children counts (from r98403)
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@102651 467b73ca-7a2a-4603-9d3b-597d59a354a9
API CHANGE: Added numChildrenMethod arg to getChildrenAsUL, markPartialTree, markChildren, markingFinished
BUGFIX: Clear the bypassStaticCache cookie when you return to the live site. (from r91165) (from r96739)
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@102365 467b73ca-7a2a-4603-9d3b-597d59a354a9
