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from migrate.changeset import SQLA_10
"""
Safe quoting method
"""
def safe_quote(obj):
# this is the SQLA 0.9 approach
if hasattr(obj, 'name') and hasattr(obj.name, 'quote'):
return obj.name.quote
else:
return obj.quote
def fk_column_names(constraint):
if SQLA_10:
return [
constraint.columns[key].name for key in constraint.column_keys]
else:
return [
element.parent.name for element in constraint.elements]
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