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Editing: validation.py
class BaseDatabaseValidation: """Encapsulate backend-specific validation.""" def __init__(self, connection): self.connection = connection def check(self, **kwargs): return [] def check_field(self, field, **kwargs): errors = [] # Backends may implement a check_field_type() method. if (hasattr(self, 'check_field_type') and # Ignore any related fields. not getattr(field, 'remote_field', None)): # Ignore fields with unsupported features. db_supports_all_required_features = all( getattr(self.connection.features, feature, False) for feature in field.model._meta.required_db_features ) if db_supports_all_required_features: field_type = field.db_type(self.connection) # Ignore non-concrete fields. if field_type is not None: errors.extend(self.check_field_type(field, field_type)) return errors
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