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38 lines
1.3 KiB
Python
38 lines
1.3 KiB
Python
from django.core.management.base import BaseCommand
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class MergeCommand(BaseCommand):
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"""base class for merge commands"""
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def add_arguments(self, parser):
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"""add the arguments for this command"""
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parser.add_argument("--canonical", type=int, required=True)
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parser.add_argument("--other", type=int, required=True)
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parser.add_argument(
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"--dry_run",
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action="store_true",
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help="don't actually merge, only print what would happen",
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)
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# pylint: disable=no-self-use,unused-argument
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def handle(self, *args, **options):
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"""merge the two objects"""
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model = self.MODEL
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try:
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canonical = model.objects.get(id=options["canonical"])
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except model.DoesNotExist:
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print("canonical book doesn’t exist!")
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return
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try:
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other = model.objects.get(id=options["other"])
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except model.DoesNotExist:
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print("other book doesn’t exist!")
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return
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absorbed_fields = other.merge_into(canonical, dry_run=options["dry_run"])
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action = "would be" if options["dry_run"] else "has been"
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print(f"{other.remote_id} {action} merged into {canonical.remote_id}")
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print(f"absorbed fields: {absorbed_fields}")
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