class ActiveRecord::UnknownPrimaryKey
Raised when a primary key is needed, but not specified in the schema or model.
def initialize(model = nil, description = nil)
def initialize(model = nil, description = nil) if model message = "Unknown primary key for table #{model.table_name} in model #{model}." message += "\n#{description}" if description @model = model super(message) else super("Unknown primary key.") end end