jbe/bsw@0: --[[--
jbe/bsw@0: param.exchange(
jbe/bsw@0:   id,
jbe/bsw@0:   params
jbe/bsw@0: )
jbe/bsw@0: 
jbe/bsw@0: This function exchanges the id and/or parameters which are returned by param.get_id(...), param.get(...), etc. It should not be called explicitly, but is used implicitly, if you pass an 'id' or 'params' option to execute.view{...} or execute.action{...}. The function param.restore() is used to revert the exchange.
jbe/bsw@0: 
jbe/bsw@0: --]]--
jbe/bsw@0: 
jbe/bsw@0: function param.exchange(id, params)
jbe/bsw@0:   table.insert(param._saved, param._exchanged)
jbe/bsw@0:   param._exchanged = { id = id, params = params }
jbe/bsw@0: end