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Source code for galaxy.model.migrations.util

import logging

from alembic import op
from sqlalchemy import inspect

log = logging.getLogger(__name__)

[docs]def drop_column(table_name, column_name): with op.batch_alter_table(table_name) as batch_op: batch_op.drop_column(column_name)
[docs]def column_exists(table_name, column_name): bind = op.get_context().bind insp = inspect(bind) columns = insp.get_columns(table_name) return any(c["name"] == column_name for c in columns)