mirror of
https://github.com/pretix/pretix.git
synced 2025-12-17 15:52:26 +00:00
102 lines
3.7 KiB
Python
102 lines
3.7 KiB
Python
#
|
|
# This file is part of pretix (Community Edition).
|
|
#
|
|
# Copyright (C) 2014-2020 Raphael Michel and contributors
|
|
# Copyright (C) 2020-2021 rami.io GmbH and contributors
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
|
|
# Public License as published by the Free Software Foundation in version 3 of the License.
|
|
#
|
|
# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
|
|
# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
|
|
# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
|
|
# this file, see <https://pretix.eu/about/en/license>.
|
|
#
|
|
# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
|
|
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
|
|
# details.
|
|
#
|
|
# You should have received a copy of the GNU Affero General Public License along with this program. If not, see
|
|
# <https://www.gnu.org/licenses/>.
|
|
#
|
|
import logging
|
|
from datetime import timedelta
|
|
|
|
from django.db import connection
|
|
from django.db.models import Func, IntegerField, Value
|
|
from django.db.models.functions import Cast
|
|
from django.utils.timezone import now
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class Equal(Func):
|
|
arg_joiner = ' = '
|
|
arity = 2
|
|
function = ''
|
|
|
|
|
|
class GreaterThan(Func):
|
|
arg_joiner = ' > '
|
|
arity = 2
|
|
function = ''
|
|
|
|
|
|
class GreaterEqualThan(Func):
|
|
arg_joiner = ' >= '
|
|
arity = 2
|
|
function = ''
|
|
|
|
|
|
class LowerEqualThan(Func):
|
|
arg_joiner = ' <= '
|
|
arity = 2
|
|
function = ''
|
|
|
|
|
|
class LowerThan(Func):
|
|
arg_joiner = ' < '
|
|
arity = 2
|
|
function = ''
|
|
|
|
|
|
class InList(Func):
|
|
arity = 2
|
|
|
|
def as_sql(self, compiler, connection, function=None, template=None, arg_joiner=None, **extra_context):
|
|
connection.ops.check_expression_support(self)
|
|
|
|
# This ignores the special case for databases which limit the number of
|
|
# elements which can appear in an 'IN' clause, which hopefully is only Oracle.
|
|
lhs, lhs_params = compiler.compile(self.source_expressions[0])
|
|
|
|
if not isinstance(self.source_expressions[1], Value) and not isinstance(self.source_expressions[1].value, (list, tuple)):
|
|
raise TypeError(f'Dynamic right-hand-site currently not implemented, found {type(self.source_expressions[1])}')
|
|
rhs, rhs_params = ['%s' for _ in self.source_expressions[1].value], [d for d in self.source_expressions[1].value]
|
|
|
|
return '%s IN (%s)' % (lhs, ', '.join(rhs)), lhs_params + rhs_params
|
|
|
|
|
|
def tolerance(b, tol=None, sign=1):
|
|
if tol:
|
|
return b + timedelta(minutes=sign * float(tol))
|
|
return b
|
|
|
|
|
|
class PostgresIntervalToEpoch(Func):
|
|
arity = 1
|
|
|
|
def as_sql(self, compiler, connection, function=None, template=None, arg_joiner=None, **extra_context):
|
|
lhs, lhs_params = compiler.compile(self.source_expressions[0])
|
|
return '(EXTRACT(epoch FROM (%s))::int)' % lhs, lhs_params
|
|
|
|
|
|
def MinutesSince(dt):
|
|
if '.postgresql' in connection.settings_dict['ENGINE']:
|
|
return PostgresIntervalToEpoch(Value(now()) - dt) / 60
|
|
else:
|
|
# date diffs on MySQL and SQLite are implemented in microseconds by django, so we just cast and convert
|
|
# see https://github.com/django/django/blob/d436554861b9b818994276d7bf110bf03aa565f5/django/db/backends/sqlite3/_functions.py#L291
|
|
# and https://github.com/django/django/blob/7119f40c9881666b6f9b5cf7df09ee1d21cc8344/django/db/backends/mysql/operations.py#L345
|
|
return Cast(Value(now()) - dt, IntegerField()) / 1_000_000 / 60
|