NAME

       Jifty::Request::Mapper - Maps response values into arbitrary query parameters

DESCRIPTION

       "Jifty::Request::Mapper" is used to insert values into parameters that you can't know when
       you originally constructed the request.  The prime example of this is a Create action to a
       View page -- where you can't know what ID to supply to the View page until after the
       Create action has run.  This problem can be fixed by establishing a mapping between some
       part of the Jifty::Result of the Create action, and the ID query parameter.

METHODS

   query_parameters HASH
       Extended syntax for generating query parameters.  This is used by
       Jifty::Web::Form::Clickable for its "parameters" argument, as well as for "results" of
       continuations.

       Possible formats for each key => value pair in the "HASH" are:

       "KEY => STRING"
           The simplest form -- the "KEY" will have the literal value of the "STRING" supplied

       "KEY => { result => ACTION }"
           The "KEY" will take on the value of the content named "KEY" from the result of the
           "ACTION".  "ACTION" may either be a Jifty::Action object, or a moniker thereof.

       "KEY => { result => ACTION, name => STRING }"
           The "KEY" will take on the value of the content named "STRING" from the result of the
           "ACTION".  "ACTION" may either be a Jifty::Action object, or a moniker thereof.

       "KEY => { request_argument => STRING }"
           The "KEY" will take on the value of the argument named "STRING" from the request.

       "KEY => { argument => ACTION }"
           The "KEY" will take on the value of the argument named "KEY" from the "ACTION".
           "ACTION" may either be a Jifty::Action object, or a moniker thereof.

       "KEY => { argument => ACTION. name => STRING }"
           The "KEY" will take on the value of the argument named "STRING" from the "ACTION".
           "ACTION" may either be a Jifty::Action object, or a moniker thereof.

       "result_of" and "argument_to" are valid synonyms for "result" and "argument", above.

   map PARAMHASH
       Responsible for doing the actual mapping that "query_parameters" above sets up.  That is,
       takes magical query parameters and extracts the values they were meant to have.

       destination
           The "key" from a query parameter

       source
           The "value" of a query parameter

       request
           The Jifty::Request object to pull action arguments from.  Defaults to the current
           request.

       response
           The Jifty::Response object to pull results from.  Defaults to the current response.

       Returns a key => value pair.