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 syntaxes 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 => { 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 ment 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. Defauts to the current request.

response

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

Returns a key => value pair.