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Vouchers: Allow to bulk-update (#6096)

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* Vouchers: Allow to bulk-delete larger numbers

* [DRAFT] voucher bulk update

* untested draft

* Minor fixes

* some tests and fixes

* More tests

* Bulk vouchers - refactor (#6353)

* Reuse parse_itemvar from VoucherForm

* Refactor: Method for _bulk update check

* remove unused parameter

* Refactor: Deduplicate get_affected_quotas code

* Remove unused delete button

* Prevent accidental update of *all* vouchers (cf PR #4960)

* Make sure we actually edit the selected items

* Use dataclass for bulk-edit data, deduplicate quota-blocking logic

* Move dataclass to models.py

* Fix linter errors

* Fix tests

* Fix tests

---------

Co-authored-by: luelista <weller@rami.io>
This commit is contained in:
Raphael Michel
2026-07-07 17:03:25 +02:00
committed by GitHub
co-authored by luelista
parent ea2c81e6dc
commit dc1b62fc56
8 changed files with 1040 additions and 131 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/pretix/control/forms/vouchers.py
+277 -53
View File
@@ -32,16 +32,20 @@
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under the License.
import copy
import csv
from collections import namedtuple
from collections import Counter, namedtuple
from io import StringIO
from django import forms
from django.core.exceptions import ObjectDoesNotExist, ValidationError
from django.core.validators import EmailValidator
from django.db.models import Count, F, Max
from django.db.models.functions import Upper
from django.forms.utils import ErrorDict
from django.urls import reverse
from django.utils.translation import gettext_lazy as _
from django.utils.timezone import now
from django.utils.translation import gettext_lazy as _, pgettext_lazy
from django_scopes.forms import SafeModelChoiceField
from pretix.base.email import get_available_placeholders
@@ -50,7 +54,10 @@ from pretix.base.forms import (
)
from pretix.base.forms.widgets import format_placeholders_help_text
from pretix.base.i18n import language
from pretix.base.models import Item, Voucher
from pretix.base.models import Item, ItemVariation, Quota, SubEvent, Voucher
from pretix.base.models.vouchers import VoucherBulkData
from pretix.base.services.locking import lock_objects
from pretix.base.services.quotas import QuotaAvailability
from pretix.control.forms import SplitDateTimeField, SplitDateTimePickerWidget
from pretix.control.forms.widgets import Select2, Select2ItemVarQuota
from pretix.control.signals import voucher_form_validation
@@ -105,20 +112,22 @@ class VoucherForm(I18nModelForm):
except Item.DoesNotExist:
pass
super().__init__(*args, **kwargs)
if not self.event and self.instance:
self.event = self.instance.event
self.fields['tag'].widget.attrs['data-typeahead-url'] = reverse('control:event.vouchers.tags.typeahead', kwargs={
'event': instance.event.slug,
'organizer': instance.event.organizer.slug,
'event': self.event.slug,
'organizer': self.event.organizer.slug,
})
if instance.event.has_subevents:
self.fields['subevent'].queryset = instance.event.subevents.all()
if self.event.has_subevents:
self.fields['subevent'].queryset = self.event.subevents.all()
self.fields['subevent'].widget = Select2(
attrs={
'data-model-select2': 'event',
'data-select2-url': reverse('control:event.subevents.select2', kwargs={
'event': instance.event.slug,
'organizer': instance.event.organizer.slug,
'event': self.event.slug,
'organizer': self.event.organizer.slug,
}),
}
)
@@ -128,18 +137,19 @@ class VoucherForm(I18nModelForm):
del self.fields['subevent']
choices = []
if 'itemvar' in initial or (self.data and 'itemvar' in self.data):
iv = self.data.get('itemvar') or initial.get('itemvar', '')
prefix = (self.prefix + '-') if self.prefix else ''
if 'itemvar' in initial or (self.data and prefix + 'itemvar' in self.data):
iv = self.data.get(prefix + 'itemvar', '') or initial.get('itemvar', '') or ''
if iv.startswith('q-'):
q = self.instance.event.quotas.get(pk=iv[2:])
q = self.event.quotas.get(pk=iv[2:])
choices.append(('q-%d' % q.pk, _('Any product in quota "{quota}"').format(quota=q)))
elif '-' in iv:
itemid, varid = iv.split('-')
i = self.instance.event.items.get(pk=itemid)
i = self.event.items.get(pk=itemid)
v = i.variations.get(pk=varid)
choices.append(('%d-%d' % (i.pk, v.pk), '%s – %s' % (str(i), v.value)))
elif iv:
i = self.instance.event.items.get(pk=iv)
i = self.event.items.get(pk=iv)
if i.variations.exists():
choices.append((str(i.pk), _('{product} – Any variation').format(product=i)))
else:
@@ -150,8 +160,8 @@ class VoucherForm(I18nModelForm):
attrs={
'data-model-select2': 'generic',
'data-select2-url': reverse('control:event.vouchers.itemselect2', kwargs={
'event': instance.event.slug,
'organizer': instance.event.organizer.slug,
'event': self.event.slug,
'organizer': self.event.organizer.slug,
}),
'data-placeholder': _('All products')
}
@@ -159,7 +169,7 @@ class VoucherForm(I18nModelForm):
self.fields['itemvar'].required = False
self.fields['itemvar'].widget.choices = self.fields['itemvar'].choices
if self.instance.event.seating_plan or self.instance.event.subevents.filter(seating_plan__isnull=False).exists():
if self.event.seating_plan or self.event.subevents.filter(seating_plan__isnull=False).exists():
self.fields['seat'] = forms.CharField(
label=_("Specific seat ID"),
max_length=255,
@@ -169,40 +179,45 @@ class VoucherForm(I18nModelForm):
help_text=str(self.instance.seat) if self.instance.seat else '',
)
def parse_itemvar(self, data):
try:
itemid = quotaid = None
iv = data.get('itemvar', '')
if iv.startswith('q-'):
quotaid = iv[2:]
elif '-' in iv:
itemid, varid = iv.split('-')
elif iv:
itemid, varid = iv, None
else:
itemid, varid = None, None
if itemid:
item = self.event.items.get(pk=itemid)
if varid:
variation = item.variations.get(pk=varid)
else:
variation = None
quota = None
elif quotaid:
quota = self.event.quotas.get(pk=quotaid)
item = None
variation = None
else:
quota = None
item = None
variation = None
return (item, variation, quota)
except ObjectDoesNotExist:
raise ValidationError(_("Invalid product selected."))
def clean(self):
data = super().clean()
if not self._errors:
try:
itemid = quotaid = None
iv = self.data.get('itemvar', '')
if iv.startswith('q-'):
quotaid = iv[2:]
elif '-' in iv:
itemid, varid = iv.split('-')
elif iv:
itemid, varid = iv, None
else:
itemid, varid = None, None
if itemid:
self.instance.item = self.instance.event.items.get(pk=itemid)
if varid:
self.instance.variation = self.instance.item.variations.get(pk=varid)
else:
self.instance.variation = None
self.instance.quota = None
elif quotaid:
self.instance.quota = self.instance.event.quotas.get(pk=quotaid)
self.instance.item = None
self.instance.variation = None
else:
self.instance.quota = None
self.instance.item = None
self.instance.variation = None
except ObjectDoesNotExist:
raise ValidationError(_("Invalid product selected."))
self.instance.item, self.instance.variation, self.instance.quota = self.parse_itemvar(self.data)
if 'codes' in data:
data['codes'] = [a.strip() for a in data.get('codes', '').strip().split("\n") if a]
@@ -214,7 +229,7 @@ class VoucherForm(I18nModelForm):
try:
Voucher.clean_item_properties(
data, self.instance.event,
data, self.event,
self.instance.quota, self.instance.item, self.instance.variation,
seats_given=data.get('seat') or data.get('seats'),
block_quota=data.get('block_quota')
@@ -234,7 +249,7 @@ class VoucherForm(I18nModelForm):
try:
Voucher.clean_subevent(
data, self.instance.event
data, self.event
)
except ValidationError as e:
raise ValidationError({"subevent": e.message})
@@ -250,19 +265,19 @@ class VoucherForm(I18nModelForm):
if check_quota:
Voucher.clean_quota_check(
data, cnt, self.initial_instance_data,
self.instance.event, self.instance.quota, self.instance.item, self.instance.variation
self.event, self.instance.quota, self.instance.item, self.instance.variation
)
Voucher.clean_voucher_code(data, self.instance.event, self.instance.pk)
Voucher.clean_voucher_code(data, self.event, self.instance.pk)
if 'seat' in self.fields:
if data.get('seat'):
self.instance.seat = Voucher.clean_seat_id(
data, self.instance.item, self.instance.quota, self.instance.event, self.instance.pk
data, self.instance.item, self.instance.quota, self.event, self.instance.pk
)
self.instance.item = self.instance.seat.product
else:
self.instance.seat = None
voucher_form_validation.send(sender=self.instance.event, form=self, data=data)
voucher_form_validation.send(sender=self.event, form=self, data=data)
return data
@@ -270,6 +285,215 @@ class VoucherForm(I18nModelForm):
return super().save(commit)
class VoucherBulkEditForm(VoucherForm):
def __init__(self, *args, **kwargs):
self.mixed_values = kwargs.pop('mixed_values')
self.queryset = kwargs.pop('queryset')
super().__init__(**kwargs)
del self.fields["code"]
self.fields.pop("seat", None)
def is_bulk_checked(self, fieldname):
return self.prefix + fieldname in self.data.getlist('_bulk')
def clean(self):
# We skip the parent class because it's not suited for bulk editing and implement custom validation here.
# This does not validate *everything* we validate in VoucherForm. For example, we skip validation that one does
# not create a voucher for an add-on product or that the seat matches the product to save on complexity.
# This is a UX validation only anyway, since one could first create the voucher and then make the product an
# add-on product. However, we need to validate everything that we don't want violated in the database.
data = super(VoucherForm, self).clean()
if self.is_bulk_checked("itemvar"):
data["item"], data["variation"], data["quota"] = self.parse_itemvar(data)
if self.is_bulk_checked("max_usages") and "max_usages" in data:
max_redeemed = self.queryset.aggregate(m=Max("redeemed"))["m"]
if data["max_usages"] < max_redeemed:
raise ValidationError(_(
"You cannot reduce the maximum number of redemptions to %(max_usages)s, because at least one "
"of the selected vouchers has already been redeemed %(max_redeemed)s times."
) % {"max_usages": data["max_usages"], "max_redeemed": max_redeemed})
# Check diff on product and quota usage based on old groups of vouchers
if any(self.is_bulk_checked(k) for k in ("max_usages", "itemvar", "block_quota", "valid_until", "subevent")):
quota_diff = Counter()
current_vouchers = self.queryset.order_by().values(
"item", "variation", "quota", "block_quota", "valid_until", "subevent", "redeemed", "max_usages",
"allow_ignore_quota",
).annotate(c=Count("*"))
item_cache = {i.pk: i for i in Item.objects.filter(pk__in=[c["item"] for c in current_vouchers])}
var_cache = {v.pk: v for v in ItemVariation.objects.filter(pk__in=[c["variation"] for c in current_vouchers])}
quota_cache = {q.pk: q for q in Quota.objects.filter(pk__in=[c["quota"] for c in current_vouchers])}
subevent_cache = {s.pk: s for s in SubEvent.objects.filter(pk__in=[c["subevent"] for c in current_vouchers])}
for current in current_vouchers:
bulk_count = current.pop('c')
current = VoucherBulkData(**current)
# Get quotas that are currently used
if current.item:
current.item = item_cache[current.item]
if current.variation:
current.variation = var_cache[current.variation]
if current.quota:
current.quota = quota_cache[current.quota]
if current.subevent:
current.subevent = subevent_cache[current.subevent]
old_quotas = Voucher.clean_quota_get_ignored(current)
old_amount = max(current.max_usages - current.redeemed, 0) * bulk_count
# Predict state after change
after_change = copy.copy(current)
if self.is_bulk_checked("itemvar") and "itemvar" in data:
after_change.item = data["item"]
after_change.variation = data["variation"]
after_change.quota = data["quota"]
if self.is_bulk_checked("subevent") and "subevent" in data:
after_change.subevent = data["subevent"]
if self.is_bulk_checked("max_usages") and "max_usages" in data:
after_change.max_usages = data["max_usages"]
if self.is_bulk_checked("block_quota") and "block_quota" in data:
after_change.block_quota = data["block_quota"]
if self.is_bulk_checked("valid_until") and "valid_until" in data:
after_change.valid_until = data["valid_until"]
if self.is_bulk_checked("allow_ignore_quota") and "allow_ignore_quota" in data:
after_change.allow_ignore_quota = data["allow_ignore_quota"]
if after_change.quota and self.event.has_subevents and not after_change.subevent:
raise ValidationError(_("You cannot create a voucher that allows selection of a quota but has no date selected."))
if after_change.quota and after_change.subevent and after_change.quota.subevent_id != after_change.subevent.pk:
raise ValidationError(_("The selected quota does not match the selected subevent."))
if after_change.block_quota and self.event.has_subevents and not after_change.subevent:
raise ValidationError(
_('If you want this voucher to block quota, you need to select a specific date.'))
if after_change.block_quota and not after_change.item and not after_change.quota:
raise ValidationError(
_('You need to select a specific product or quota if this voucher should reserve '
'tickets.')
)
if after_change.allow_ignore_quota:
# todo: is this the most useful way to do this?
continue
new_quotas = Voucher.clean_quota_get_ignored(after_change)
new_amount = max(after_change.max_usages - after_change.redeemed, 0) * bulk_count
if new_quotas != old_quotas or new_amount != old_amount:
for q in old_quotas:
quota_diff[q] -= old_amount
for q in new_quotas:
quota_diff[q] += new_amount
if any(v > 0 for q, v in quota_diff.items()):
lock_objects([q for q, v in quota_diff.items() if q.size is not None and v > 0], shared_lock_objects=[self.event])
qa = QuotaAvailability(count_waitinglist=False)
qa.queue(*(q for q, v in quota_diff.items() if v > 0))
qa.compute()
if any(qa.results[q][0] != Quota.AVAILABILITY_OK or (qa.results[q][1] is not None and qa.results[q][1] < required)
for q, required in quota_diff.items() if required > 0):
raise ValidationError(_(
'There is no sufficient quota available to perform this change.'
))
has_seat = self.queryset.filter(seat__isnull=False).exists()
if has_seat:
if self.is_bulk_checked("max_usages"):
raise ValidationError(_(
'Changing the maximum number of usages in bulk is not supported if any of the selected vouchers '
'is assigned a seat.'
))
if self.is_bulk_checked("subevent"):
raise ValidationError(pgettext_lazy(
'subevent',
'Changing the date in bulk is not supported if any of the selected vouchers '
'is assigned a seat.'
))
if self.is_bulk_checked("itemvar") and data["quota"]:
raise ValidationError(_(
'Changing the product to a quota is not supported if any of the selected vouchers '
'is assigned a seat.'
))
if self.is_bulk_checked("valid_until"):
if data["valid_until"] is None or data["valid_until"] >= now():
currently_not_blocked_seats = self.queryset.filter(
seat__isnull=False,
max_usages__gt=F("redeemed"),
valid_until__lt=now(),
)
if self.event.has_subevents:
subevents = self.event.subevents.filter(pk__in=currently_not_blocked_seats.values_list("subevent"))
for se in subevents:
conflicts = currently_not_blocked_seats.filter(
subevent=se
).exclude(
seat_id__in=se.free_seats().values("pk")
)
if conflicts:
raise ValidationError(_(
'This change cannot be completed because not all assigned seats of the vouchers are '
'still available'
))
else:
conflicts = currently_not_blocked_seats.exclude(
seat_id__in=self.event.free_seats().values("pk")
)
if conflicts:
raise ValidationError(_(
'This change cannot be completed because not all assigned seats of the vouchers are '
'still available'
))
return data
def save(self, commit=True):
objs = list(self.queryset)
fields = set()
check_map = {
'price_mode': '__price',
'value': '__price',
}
for k in self.fields:
if not self.is_bulk_checked(check_map.get(k, k)):
continue
if k == 'itemvar':
fields.add("item")
fields.add("variation")
fields.add("quota")
else:
fields.add(k)
for obj in objs:
if k == 'itemvar':
obj.item = self.cleaned_data["item"]
obj.variation = self.cleaned_data["variation"]
obj.quota = self.cleaned_data["quota"]
else:
setattr(obj, k, self.cleaned_data[k])
fields = [f for f in fields if f != 'itemvars']
if fields:
Voucher.objects.bulk_update(objs, fields, 200)
def full_clean(self):
if len(self.data) == 0:
# form wasn't submitted
self._errors = ErrorDict()
return
super().full_clean()
def _post_clean(self):
pass # skip model-level clean
class VoucherBulkForm(VoucherForm):
codes = forms.CharField(
widget=forms.Textarea,