factor/extra/webapps/calculator/calculator.factor

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Factor

! Copyright (C) 2008, 2009 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: furnace furnace.actions furnace.redirection
http.server.dispatchers html.forms validators urls accessors
math ;
IN: webapps.calculator
TUPLE: calculator < dispatcher ;
: <calculator-action> ( -- action )
<page-action>
[
{ { "z" [ [ v-number ] v-optional ] } } validate-params
] >>init
{ calculator "calculator" } >>template
[
{
{ "x" [ v-number ] }
{ "y" [ v-number ] }
} validate-params
URL" $calculator" "x" value "y" value + "z" set-query-param
<redirect>
] >>submit ;
: <calculator> ( -- responder )
calculator new-dispatcher
<calculator-action> >>default ;
! Deployment example
USING: db.sqlite furnace.alloy namespaces http.server ;
: calculator-db ( -- db ) "calculator.db" <sqlite-db> ;
: run-calculator ( -- )
<calculator>
calculator-db <alloy>
main-responder set-global
8080 httpd ;
MAIN: run-calculator