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50 lines
1.2 KiB
Python
50 lines
1.2 KiB
Python
from rest_framework import status
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from rest_framework.exceptions import APIException
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__all__ = (
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'AbortRequest',
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'AbortTransaction',
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'PermissionsViolation',
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'RQWorkerNotRunningException',
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)
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class AbortTransaction(Exception):
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"""
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A dummy exception used to trigger a database transaction rollback.
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"""
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pass
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class AbortRequest(Exception):
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"""
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Raised to cleanly abort a request (for example, by a pre_save signal receiver).
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"""
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def __init__(self, message):
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self.message = message
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class AbortScript(Exception):
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"""
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Raised to cleanly abort a script.
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"""
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pass
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class PermissionsViolation(Exception):
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"""
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Raised when an operation was prevented because it would violate the
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allowed permissions.
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"""
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message = "Operation failed due to object-level permissions violation"
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class RQWorkerNotRunningException(APIException):
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"""
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Indicates the temporary inability to enqueue a new task (e.g. custom script execution) because no RQ worker
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processes are currently running.
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"""
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status_code = status.HTTP_503_SERVICE_UNAVAILABLE
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default_detail = 'Unable to process request: RQ worker process not running.'
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default_code = 'rq_worker_not_running'
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