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: accessors furnace.actions furnace.alloy
furnace.redirection html.forms http.server
http.server.dispatchers kernel math namespaces urls validators
webapps.utils ;
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" clone "x" value "y" value + "z" set-query-param
<redirect>
] >>submit ;
: <calculator> ( -- responder )
calculator new-dispatcher
<calculator-action> >>default ;
! Deployment example
: calculator-db ( -- db ) "calculator.db" <temp-sqlite-db> ;
: <calculator-app> ( -- dispatcher )
<calculator> calculator-db <alloy> ;
! Calculator runs at port 8081 and 8431
: run-calculator ( -- )
<calculator-app> main-responder set-global
run-test-httpd ;
MAIN: run-calculator