A new class is added which will add meta tags for dates and events.
The class has an interface which allows it to be replaced via DI to
alter behaviour.
Refactor import regarding data handler. We now also need to add a new
column "keywords". We use the new DataHandler approach.
But that approach only covered relations so far. We therefore refactor
that area to be more generic and use that one for new keywords column.
Relates: #10642
It was not possible to change the value of highlight for events due to
broken TCA.
This got fixed. The input is now streamlined to look the same as hidden
to not irritate users.
Relates: #10782
Destination Data One provides an source info explaining where the data
originally came from.
This is now added to event records and exposed in TYPO3 backend.
That allows editors to check the source and contact corresponding
sources in order to fix broken data.
Relates: #10630
They sometimes use a different separator.
The code is adjusted to always use same separator and precision.
That will prevent the same location from showing up multiple times due
to different latitude and longitude values.
It is now possible to create "Import" records in TYPO3 system.
Those records can then be imported via two new commands.
There is no need to configure everything within the command itself.
That allows:
* To allow editors to maintain import configuration.
* Have proper labels, description, csh and UI to create import.
It no longer is necessary to copy UIDs,
instead proper wizards from TCA are available to select pages.
Relates: #9649
The old identifier had a trailing comma.
Old installations would break if we do not keep the command under this
identifier.
Updating scheduler tasks is a bad thing, so we keep compatibility.
Extbase will properly use mm sorting.
But categories can't be sorted within the TCA tree component.
Therefore it makes more sense to use actual sys_category sorting.
In order to do so, we add our own model and pass the sorting.
That way PHP can do the sorting.
That's the easiest approach.
Also events shouldn't contain to many categories. A performance impact
should not be high.
Relates: #8459
