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944008d475
* Closes #12135: Prevent the deletion of interfaces with children * Change PROTECT to RESTRICT * Extend handle_protectederror() to also handle RestrictedError * Fix string translation * Update migrations * Support bulk removal of parent interfaces via UI if all children are included * Add support for the bulk deletion of restricted objects via REST API
35 lines
1.3 KiB
Python
35 lines
1.3 KiB
Python
from django.contrib import messages
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from django.db.models import ProtectedError, RestrictedError
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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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from django.utils.translation import gettext_lazy as _
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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 or RestrictedError exception.
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"""
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if type(e) is ProtectedError:
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protected_objects = list(e.protected_objects)
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elif type(e) is RestrictedError:
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protected_objects = list(e.restricted_objects)
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else:
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raise e
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# Formulate the error message
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err_message = _("Unable to delete <strong>{objects}</strong>. {count} dependent objects were found: ").format(
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objects=', '.join(str(obj) for obj in obj_list),
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count=len(protected_objects) if len(protected_objects) <= 50 else _('More than 50')
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)
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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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