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django/tests/custom_migration_operations/operations.py

95 lines
2.1 KiB
Python

from django.db.migrations.operations.base import Operation
class TestOperation(Operation):
def __init__(self):
pass
def deconstruct(self):
return (
self.__class__.__name__,
[],
{}
)
@property
def reversible(self):
return True
def state_forwards(self, app_label, state):
pass
def database_forwards(self, app_label, schema_editor, from_state, to_state):
pass
def state_backwards(self, app_label, state):
pass
def database_backwards(self, app_label, schema_editor, from_state, to_state):
pass
class CreateModel(TestOperation):
pass
class ArgsOperation(TestOperation):
def __init__(self, arg1, arg2):
self.arg1, self.arg2 = arg1, arg2
def deconstruct(self):
return (
self.__class__.__name__,
[self.arg1, self.arg2],
{}
)
class KwargsOperation(TestOperation):
def __init__(self, kwarg1=None, kwarg2=None):
self.kwarg1, self.kwarg2 = kwarg1, kwarg2
def deconstruct(self):
kwargs = {}
if self.kwarg1 is not None:
kwargs['kwarg1'] = self.kwarg1
if self.kwarg2 is not None:
kwargs['kwarg2'] = self.kwarg2
return (
self.__class__.__name__,
[],
kwargs
)
class ArgsKwargsOperation(TestOperation):
def __init__(self, arg1, arg2, kwarg1=None, kwarg2=None):
self.arg1, self.arg2 = arg1, arg2
self.kwarg1, self.kwarg2 = kwarg1, kwarg2
def deconstruct(self):
kwargs = {}
if self.kwarg1 is not None:
kwargs['kwarg1'] = self.kwarg1
if self.kwarg2 is not None:
kwargs['kwarg2'] = self.kwarg2
return (
self.__class__.__name__,
[self.arg1, self.arg2],
kwargs,
)
class ExpandArgsOperation(TestOperation):
serialization_expand_args = ['arg']
def __init__(self, arg):
self.arg = arg
def deconstruct(self):
return (
self.__class__.__name__,
[self.arg],
{}
)