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30 lines
968 B
Python
30 lines
968 B
Python
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from django.contrib import messages
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def handle_protectederror(obj, request, e):
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"""
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Generate a user-friendly error message in response to a ProtectedError exception.
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"""
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dependent_objects = e[1]
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try:
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dep_class = dependent_objects[0]._meta.verbose_name_plural
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except IndexError:
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raise e
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# Handle multiple triggering objects
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if type(obj) in (list, tuple):
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messages.error(request, "Unable to delete the requested {}. The following dependent {} were found: {}".format(
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obj[0]._meta.verbose_name_plural,
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dep_class,
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', '.join([str(o) for o in dependent_objects])
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))
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# Handle a single triggering object
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else:
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messages.error(request, "Unable to delete {} {}. The following dependent {} were found: {}".format(
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obj._meta.verbose_name,
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obj,
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dep_class,
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', '.join([str(o) for o in dependent_objects])
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))
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