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25 lines
1.0 KiB
Python
25 lines
1.0 KiB
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_list, 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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protected_count = len(protected_objects) if len(protected_objects) <= 50 else 'More than 50'
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err_message = f"Unable to delete <strong>{', '.join(str(obj) for obj in obj_list)}</strong>. " \
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f"{protected_count} 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[:50]:
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if hasattr(dependent, '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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