If applying custom Upload_Validator rules, uploads will fail POST with
a 403 to UploadField/upload as the upload was rejected, but UploadField
still shows that the upload was successful.
jqXHRorError returns either an error string, e.g. "Forbidden" or an
object. If it's a string, ensure that the upload summary shows an
error message. If it's an object and has a status of 200, show the
success message.
If an upload fails, the error is not shown correctly, it gets hidden
off the table because of absolute positioning. This currently worked
because it relied upon known errors not showing a "size" element next
to it.
"ui-state-warning-text" and "ui-state-success-text" don't need this
CSS, so it's probably not necessary anyway as it shows the error text
correctly without it.
When the email sender makes the links absolute, it can't handle empty `href` or `src` attributes as there's no expectation that the string length could be 0
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
This allows subclasses and extensions time to modify the list of options and their configuration without having to override the entire Field method.
A more flexible way to implement silverstripe#3311
1. Add missing _super calls.
2. Make UI widget destroys more consistent to avoid exceptions.
Selectable would throw an exception in the GridField.js if destroy
called from onunmatch - at that stage jQuery UI would have had called
the destroy already. Add a guard, and change to onremove, which triggers
before the element is removed from DOM.
3. DOM traversal fails after the element is removed from DOM.
Onunmatch triggers after the removal of the element from the DOM, which
makes DOM traversal fail. Use onremove instead, which triggers while the
element is still in DOM.
Specific case: LeftAndMain::$session_keepalive_ping = true cannot be
set to false in config.yml for some cases because the value is ignored
when merge_array_low_into_high() is processing the config arrays.
