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24 lines
919 B
Python
24 lines
919 B
Python
from django.contrib import messages
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from django.utils.html import escape
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from django.utils.safestring import mark_safe
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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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protected_objects = list(e.protected_objects)
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err_message = f"Unable to delete {obj._meta.verbose_name} <strong>{obj}</strong>. " \
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f"{len(protected_objects)} dependent objects were found: "
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# Append dependent objects to error message
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dependent_objects = []
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for dependent in protected_objects:
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if hasattr(obj, 'get_absolute_url'):
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dependent_objects.append(f'<a href="{dependent.get_absolute_url()}">{escape(dependent)}</a>')
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else:
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dependent_objects.append(str(dependent))
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err_message += ', '.join(dependent_objects)
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messages.error(request, mark_safe(err_message))
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