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
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
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
That has no effect, the info is just available from model.
This can be used to display a canceled date in a different way, or
render a notice.
Relates: #8092
Add new record type partner.
This can be something like a media partner or something else.
Allow an event to have zero or more partner.
Add necessary files and models with relations.
Relates: #8092
Allow editor to reference TYPO3 page records from events.
E.g. used to provide further internal information links.
Also those pages are resolved via DataProcessing.
That allows integrators to be 100% flexible to resolve those page info.
By default a menu is generated and media is resolved.
Also validation is ignored, as this improves performance and allows to
use the new class as injected property without validation fails.
Models are not managed via frontend and therefore don't need validation.
Relates: #8092
Allows to remove all existing records regarding events.
It will search for all pages providing either organizer or events, and
will delete both types of records.
As DataHandler is used for deletion, there is already logging within
TYPO3, as well as recursive deletion for dates and sys_file_references.
To speedup for large data sets, truncate organizer and dates, as they
don't have recursive deletions, e.g. to sys_file_references. Also add
keys to database.
