Files
pretix_original/src/pretix/api/serializers/event.py
2019-05-28 12:38:10 +02:00

310 lines
12 KiB
Python

from django.conf import settings
from django.core.exceptions import ValidationError
from django.db import transaction
from django.utils.functional import cached_property
from django.utils.translation import ugettext as _
from django_countries.serializers import CountryFieldMixin
from rest_framework.fields import Field
from rest_framework.relations import SlugRelatedField
from pretix.api.serializers.i18n import I18nAwareModelSerializer
from pretix.base.models import Event, TaxRule
from pretix.base.models.event import SubEvent
from pretix.base.models.items import SubEventItem, SubEventItemVariation
class MetaDataField(Field):
def to_representation(self, value):
return {
v.property.name: v.value for v in value.meta_values.all()
}
def to_internal_value(self, data):
return {
'meta_data': data
}
class PluginsField(Field):
def to_representation(self, obj):
from pretix.base.plugins import get_all_plugins
return sorted([
p.module for p in get_all_plugins()
if not p.name.startswith('.') and getattr(p, 'visible', True) and p.module in obj.get_plugins()
])
def to_internal_value(self, data):
return {
'plugins': data
}
class EventSerializer(I18nAwareModelSerializer):
meta_data = MetaDataField(required=False, source='*')
plugins = PluginsField(required=False, source='*')
class Meta:
model = Event
fields = ('name', 'slug', 'live', 'testmode', 'currency', 'date_from',
'date_to', 'date_admission', 'is_public', 'presale_start',
'presale_end', 'location', 'has_subevents', 'meta_data', 'plugins')
def validate(self, data):
data = super().validate(data)
full_data = self.to_internal_value(self.to_representation(self.instance)) if self.instance else {}
full_data.update(data)
Event.clean_dates(data.get('date_from'), data.get('date_to'))
Event.clean_presale(data.get('presale_start'), data.get('presale_end'))
return data
def validate_has_subevents(self, value):
Event.clean_has_subevents(self.instance, value)
return value
def validate_slug(self, value):
Event.clean_slug(self.context['request'].organizer, self.instance, value)
return value
def validate_live(self, value):
if value:
if self.instance is None:
raise ValidationError(_('Events cannot be created as \'live\'. Quotas and payment must be added to the '
'event before sales can go live.'))
else:
self.instance.clean_live()
return value
@cached_property
def meta_properties(self):
return {
p.name: p for p in self.context['request'].organizer.meta_properties.all()
}
def validate_meta_data(self, value):
for key in value['meta_data'].keys():
if key not in self.meta_properties:
raise ValidationError(_('Meta data property \'{name}\' does not exist.').format(name=key))
return value
def validate_plugins(self, value):
from pretix.base.plugins import get_all_plugins
plugins_available = {
p.module for p in get_all_plugins(self.instance)
if not p.name.startswith('.') and getattr(p, 'visible', True)
}
for plugin in value.get('plugins'):
if plugin not in plugins_available:
raise ValidationError(_('Unknown plugin: \'{name}\'.').format(name=plugin))
return value
@transaction.atomic
def create(self, validated_data):
meta_data = validated_data.pop('meta_data', None)
plugins = validated_data.pop('plugins', settings.PRETIX_PLUGINS_DEFAULT.split(','))
event = super().create(validated_data)
# Meta data
if meta_data is not None:
for key, value in meta_data.items():
event.meta_values.create(
property=self.meta_properties.get(key),
value=value
)
# Plugins
if plugins is not None:
event.set_active_plugins(plugins)
event.save(update_fields=['plugins'])
return event
@transaction.atomic
def update(self, instance, validated_data):
meta_data = validated_data.pop('meta_data', None)
plugins = validated_data.pop('plugins', None)
event = super().update(instance, validated_data)
# Meta data
if meta_data is not None:
current = {mv.property: mv for mv in event.meta_values.select_related('property')}
for key, value in meta_data.items():
prop = self.meta_properties.get(key)
if prop in current:
current[prop].value = value
current[prop].save()
else:
event.meta_values.create(
property=self.meta_properties.get(key),
value=value
)
for prop, current_object in current.items():
if prop.name not in meta_data:
current_object.delete()
# Plugins
if plugins is not None:
event.set_active_plugins(plugins)
event.save()
return event
class CloneEventSerializer(EventSerializer):
@transaction.atomic
def create(self, validated_data):
plugins = validated_data.pop('plugins', None)
is_public = validated_data.pop('is_public', None)
testmode = validated_data.pop('testmode', None)
new_event = super().create(validated_data)
event = Event.objects.filter(slug=self.context['event'], organizer=self.context['organizer'].pk).first()
new_event.copy_data_from(event)
if plugins is not None:
new_event.set_active_plugins(plugins)
if is_public is not None:
new_event.is_public = is_public
if testmode is not None:
new_event.testmode = testmode
new_event.save()
return new_event
class SubEventItemSerializer(I18nAwareModelSerializer):
class Meta:
model = SubEventItem
fields = ('item', 'price')
class SubEventItemVariationSerializer(I18nAwareModelSerializer):
class Meta:
model = SubEventItemVariation
fields = ('variation', 'price')
class SubEventSerializer(I18nAwareModelSerializer):
item_price_overrides = SubEventItemSerializer(source='subeventitem_set', many=True, required=False)
variation_price_overrides = SubEventItemVariationSerializer(source='subeventitemvariation_set', many=True, required=False)
event = SlugRelatedField(slug_field='slug', read_only=True)
meta_data = MetaDataField(source='*')
class Meta:
model = SubEvent
fields = ('id', 'name', 'date_from', 'date_to', 'active', 'date_admission',
'presale_start', 'presale_end', 'location', 'event', 'is_public',
'item_price_overrides', 'variation_price_overrides', 'meta_data')
def validate(self, data):
data = super().validate(data)
event = self.context['request'].event
full_data = self.to_internal_value(self.to_representation(self.instance)) if self.instance else {}
full_data.update(data)
Event.clean_dates(data.get('date_from'), data.get('date_to'))
Event.clean_presale(data.get('presale_start'), data.get('presale_end'))
SubEvent.clean_items(event, [item['item'] for item in full_data.get('subeventitem_set', [])])
SubEvent.clean_variations(event, [item['variation'] for item in full_data.get('subeventitemvariation_set', [])])
return data
def validate_item_price_overrides(self, data):
return list(filter(lambda i: 'item' in i, data))
def validate_variation_price_overrides(self, data):
return list(filter(lambda i: 'variation' in i, data))
@cached_property
def meta_properties(self):
return {
p.name: p for p in self.context['request'].organizer.meta_properties.all()
}
def validate_meta_data(self, value):
for key in value['meta_data'].keys():
if key not in self.meta_properties:
raise ValidationError(_('Meta data property \'{name}\' does not exist.').format(name=key))
return value
@transaction.atomic
def create(self, validated_data):
item_price_overrides_data = validated_data.pop('subeventitem_set') if 'subeventitem_set' in validated_data else {}
variation_price_overrides_data = validated_data.pop('subeventitemvariation_set') if 'subeventitemvariation_set' in validated_data else {}
meta_data = validated_data.pop('meta_data', None)
subevent = super().create(validated_data)
for item_price_override_data in item_price_overrides_data:
SubEventItem.objects.create(subevent=subevent, **item_price_override_data)
for variation_price_override_data in variation_price_overrides_data:
SubEventItemVariation.objects.create(subevent=subevent, **variation_price_override_data)
# Meta data
if meta_data is not None:
for key, value in meta_data.items():
subevent.meta_values.create(
property=self.meta_properties.get(key),
value=value
)
return subevent
@transaction.atomic
def update(self, instance, validated_data):
item_price_overrides_data = validated_data.pop('subeventitem_set') if 'subeventitem_set' in validated_data else {}
variation_price_overrides_data = validated_data.pop('subeventitemvariation_set') if 'subeventitemvariation_set' in validated_data else {}
meta_data = validated_data.pop('meta_data', None)
subevent = super().update(instance, validated_data)
existing_item_overrides = {item.item: item.id for item in SubEventItem.objects.filter(subevent=subevent)}
for item_price_override_data in item_price_overrides_data:
id = existing_item_overrides.pop(item_price_override_data['item'], None)
SubEventItem(id=id, subevent=subevent, **item_price_override_data).save()
SubEventItem.objects.filter(id__in=existing_item_overrides.values()).delete()
existing_variation_overrides = {item.variation: item.id for item in SubEventItemVariation.objects.filter(subevent=subevent)}
for variation_price_override_data in variation_price_overrides_data:
id = existing_variation_overrides.pop(variation_price_override_data['variation'], None)
SubEventItemVariation(id=id, subevent=subevent, **variation_price_override_data).save()
SubEventItemVariation.objects.filter(id__in=existing_variation_overrides.values()).delete()
# Meta data
if meta_data is not None:
current = {mv.property: mv for mv in subevent.meta_values.select_related('property')}
for key, value in meta_data.items():
prop = self.meta_properties.get(key)
if prop in current:
current[prop].value = value
current[prop].save()
else:
subevent.meta_values.create(
property=self.meta_properties.get(key),
value=value
)
for prop, current_object in current.items():
if prop.name not in meta_data:
current_object.delete()
return subevent
class TaxRuleSerializer(CountryFieldMixin, I18nAwareModelSerializer):
class Meta:
model = TaxRule
fields = ('id', 'name', 'rate', 'price_includes_tax', 'eu_reverse_charge', 'home_country')