forked from CGM_Public/pretix_original
60 lines
1.5 KiB
Python
60 lines
1.5 KiB
Python
import logging
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from datetime import timedelta
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from django.db.models import Func, Value
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logger = logging.getLogger(__name__)
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class Equal(Func):
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arg_joiner = ' = '
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arity = 2
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function = ''
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class GreaterThan(Func):
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arg_joiner = ' > '
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arity = 2
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function = ''
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class GreaterEqualThan(Func):
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arg_joiner = ' >= '
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arity = 2
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function = ''
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class LowerEqualThan(Func):
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arg_joiner = ' < '
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arity = 2
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function = ''
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class LowerThan(Func):
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arg_joiner = ' < '
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arity = 2
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function = ''
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class InList(Func):
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arity = 2
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def as_sql(self, compiler, connection, function=None, template=None, arg_joiner=None, **extra_context):
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connection.ops.check_expression_support(self)
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# This ignores the special case for databases which limit the number of
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# elements which can appear in an 'IN' clause, which hopefully is only Oracle.
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lhs, lhs_params = compiler.compile(self.source_expressions[0])
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if not isinstance(self.source_expressions[1], Value) and not isinstance(self.source_expressions[1].value, (list, tuple)):
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raise TypeError(f'Dynamic right-hand-site currently not implemented, found {type(self.source_expressions[1])}')
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rhs, rhs_params = ['%s' for _ in self.source_expressions[1].value], [d for d in self.source_expressions[1].value]
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return '%s IN (%s)' % (lhs, ', '.join(rhs)), lhs_params + rhs_params
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def tolerance(b, tol=None, sign=1):
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if tol:
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return b + timedelta(minutes=sign * float(tol))
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return b
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