44 lines
1.0 KiB
Plaintext
44 lines
1.0 KiB
Plaintext
=== Arborescences
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[source,python]
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----
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----
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[source,python]
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----
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# <app>/management/commands/rebuild.py
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"""This command manages Closure Tables implementation
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It adds new levels and cleans links between entities.
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This way, it's relatively easy to fetch an entire tree with just one tiny request.
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"""
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from django.core.management.base import BaseCommand
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from rps.structure.models import Entity, EntityTreePath
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class Command(BaseCommand):
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def handle(self, *args, **options):
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entities = Entity.objects.all()
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for entity in entities:
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breadcrumb = [node for node in entity.breadcrumb()]
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tree = set(EntityTreePath.objects.filter(descendant=entity))
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for idx, node in enumerate(breadcrumb):
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tree_path, _ = EntityTreePath.objects.get_or_create(
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ancestor=node, descendant=entity, weight=idx + 1
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)
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if tree_path in tree:
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tree.remove(tree_path)
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for tree_path in tree:
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tree_path.delete()
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----
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