* Let plugins allow/prevent the download of individual tickets in an order (#3836)
(extends the functionality of the allow_ticket_download signal)
(cherry picked from commit e20edab98f)
* fix bug where in some cases, only the first ticket could be downloaded
* start impl of unavailability modes ui
* add db migration
* use new widget for more fields
* improve contrast
* use new widget for hide_without_voucher field
* improved wording
* rebase migration
* undo changes to require_membership_hidden
* code formatting
* move unavail_reason logic around
* enforce consistent state of hide_without_voucher / require_voucher
* annotate unavailability info in get_grouped_items
* remove MSIE6 compat
* add unavailability reasons to widget
* remove test output
* Apply suggestions from code review
text improvements
Co-authored-by: Richard Schreiber <schreiber@rami.io>
* add css fix for jumping items due to tooltip
* dynamically retrieve unavailability reason message
* widget: simplify logic conditions
* add available_{from,until}_mode to api and api docs
* rebase migration
* rebase migration
* add unavailable_*_mode to ItemVariation
* add available_*_mode to API docs for items
* fix wrong reference
* fix test cases
* add available_*_mode to item variation form
* apply unavailability modes to subevents and variations (presale)
* /o\
* apply unavailability modes to subevents and variations (widget)
* display unavailability mode in subevent product settings
* fix widget test
* fix api item tests
* copy available_*_mode when copying an item
* Apply suggestions from code review
Co-authored-by: Raphael Michel <michel@rami.io>
* Add unavail mode indicator to bulk create and edit forms
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Co-authored-by: Richard Schreiber <schreiber@rami.io>
Co-authored-by: Raphael Michel <michel@rami.io>
* remove duplicate context generation
* allow text templates in frontpage_text
* refactor: move placeholder functionality to separate file
* fix wrong class name, code style
* update year in license header
* undo license header update
* use new function name
* render only the placeholders that are actually used in the message
* refactoring
* add str(...) call
* Update doc/development/api/placeholder.rst
Co-authored-by: Raphael Michel <michel@rami.io>
* rename register_mail_placeholders to register_template_placeholders
(deprecate old name)
* isort
* add signals to docs
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Co-authored-by: Raphael Michel <michel@rami.io>
* Cart: More useful error message if some selected products are sold
* Update src/pretix/base/services/cart.py
Co-authored-by: Mira <weller@rami.io>
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Co-authored-by: Mira <weller@rami.io>
