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47bf111de8
This will make django automatically remove them when we run squashmigrations. There are still some RunSQL statements which we will have to take care of manually.
32 lines
1.1 KiB
Python
32 lines
1.1 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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elidable=True),
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]
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