Added check_field_is_empty decorator to cleaning.py. This makes sure the cleaning checks are skipped when a field is empty. Note that Djanog will raise it's own ValidationError when a required field is empty before attempting to clean it. Patch by: Lennard de Rijk Reviewed by: to-be-reviewed.

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"""

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Code used in a couple of places to work with the current thread's environment.

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Current users include i18n and request prefix handling.

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"""

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try:

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    import threading

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    currentThread = threading.currentThread

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except ImportError:

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    def currentThread():

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        return "no threading"

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