mirror of
https://github.com/langbot-app/LangBot.git
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BiFangKNT
f42d3919cb
- Merge migrations 0039 through 0041 into a single 0039 migration - Preserve existing indexes and support partial historical schemas - Update migration tests for the consolidated revision
53 lines
2.1 KiB
Python
53 lines
2.1 KiB
Python
"""Conversation paging index is safe for existing and fresh databases."""
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import importlib
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import sqlalchemy as sa
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from alembic.migration import MigrationContext
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from alembic.operations import Operations
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from langbot.pkg.entity.persistence.monitoring import MonitoringMessage
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def test_conversation_index_migration_preserves_history_and_matches_metadata():
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migration = importlib.import_module('langbot.pkg.persistence.alembic.versions.0039_execution_lease_indexes')
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index_name = 'ix_monitoring_messages_conversation_page'
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engine = sa.create_engine('sqlite:///:memory:')
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metadata = sa.MetaData()
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table = sa.Table(
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'monitoring_messages',
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metadata,
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*[
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sa.Column(name, sa.String, primary_key=name == 'id')
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for name in (
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'id',
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'workspace_uuid',
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'bot_id',
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'session_id',
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'timestamp',
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'message_content',
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'status',
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'execution_lease_expires_at',
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)
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],
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)
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sa.Index('existing_index', table.c.workspace_uuid)
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try:
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with engine.begin() as connection:
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metadata.create_all(connection)
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connection.execute(table.insert().values(id='history', message_content='inline media'))
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with Operations.context(MigrationContext.configure(connection)):
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migration.upgrade()
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migration.upgrade()
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indexes = {
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index['name']: index['column_names'] for index in sa.inspect(connection).get_indexes(table.name)
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}
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expected = next(index for index in MonitoringMessage.__table__.indexes if index.name == index_name)
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assert indexes[index_name] == [column.name for column in expected.columns]
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migration.downgrade()
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assert {index['name'] for index in sa.inspect(connection).get_indexes(table.name)} == {'existing_index'}
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assert connection.scalar(sa.select(table.c.message_content)) == 'inline media'
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migration.upgrade()
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finally:
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engine.dispose()
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