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53 lines
1.7 KiB
53 lines
1.7 KiB
# Generated by Django 3.2.14 on 2022-08-03 10:59
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import time
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from django.db import migrations
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def migrate_asset_protocols(apps, schema_editor):
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asset_model = apps.get_model('assets', 'Asset')
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protocol_model = apps.get_model('assets', 'Protocol')
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asset_protocol_through = asset_model.protocols.through
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count = 0
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bulk_size = 1000
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print("\nStart migrate asset protocols")
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protocol_map = {}
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while True:
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start = time.time()
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assets = asset_model.objects.all()[count:count+bulk_size]
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if not assets:
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break
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count += len(assets)
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assets_protocols = []
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for asset in assets:
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old_protocols = asset._protocols
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for name_port in old_protocols.split(','):
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name_port_list = name_port.split('/')
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if len(name_port_list) != 2:
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continue
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name, port = name_port_list
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protocol = protocol_map.get(name_port)
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if not protocol:
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protocol = protocol_model.objects.get_or_create(
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defaults={'name': name, 'port': port},
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name=name, port=port
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)[0]
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assets_protocols.append(asset_protocol_through(asset_id=asset.id, protocol_id=protocol.id))
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asset_model.protocols.through.objects.bulk_create(assets_protocols, ignore_conflicts=True)
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print("Create asset protocols: {}-{} using: {:.2f}s".format(
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count - len(assets), count, time.time()-start
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))
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class Migration(migrations.Migration):
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dependencies = [
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('assets', '0101_auto_20220803_1448'),
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]
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operations = [
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migrations.RunPython(migrate_asset_protocols)
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]
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