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69ae4931c3
This replaces django.db.backends.postgresql_psycopg2, which has been an alias to django.db.backends.postgresql since Django 1.9.
31 lines
1.0 KiB
Python
31 lines
1.0 KiB
Python
# Generated by Django 1.11.18 on 2019-02-25 12:42
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from django.db import migrations
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from django.db.backends.postgresql.schema import DatabaseSchemaEditor
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from django.db.migrations.state import StateApps
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def backfill_first_message_id(apps: StateApps, schema_editor: DatabaseSchemaEditor) -> None:
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Stream = apps.get_model('zerver', 'Stream')
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Message = apps.get_model('zerver', 'Message')
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for stream in Stream.objects.all():
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first_message = Message.objects.filter(
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recipient__type_id=stream.id,
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recipient__type=2).first()
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if first_message is None:
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# No need to change anything if the outcome is the default of None
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continue
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stream.first_message_id = first_message.id
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stream.save()
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class Migration(migrations.Migration):
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dependencies = [
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('zerver', '0209_stream_first_message_id'),
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]
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operations = [
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migrations.RunPython(backfill_first_message_id,
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reverse_code=migrations.RunPython.noop),
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]
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