FORM: Declarative Documents

Intro

  #document { name = Name, sections = [
      #sec { name=[<<"Input the password "
                     "you have received by SMS"/utf8>>,
             nitro:to_list(Phone#phone.number)] } ],

    buttons  = [ #but { name='decline',
                        title=<<"Cancel"/utf8>>,
                        class=cancel,
                        postback={'CloseOpenedForm',Name} },

                 #but { name='proceed',
                        title = <<"Proceed"/utf8>>,
                        class = [button,sgreen],
                        sources = [otp],
                        postback = {'Spinner',{'OpenForm',Name}}}],

    fields = [ #field { name='otp',
                        type=otp,
                        title= <<"Password:"/utf8>>,
                        labelClass=label,
                        fieldClass=column3}]}.

Spec

Documents or Forms consist of set of fields grouped in sections and a row of control buttons. It mey also contain fields of customizable types.

  -record(document, { ?ITERATOR(feed),
                      name,
                      base,
                      sections,
                      fields,
                      buttons,
                      access }).

 -record(field,     { id, sec=1, name, pos, title,
                      layout, visible=true,
                      disabled=false, format="~w",
                      curr=[], postfun=[], desc,
                      wide=normal, type=binary,
                      etc, labelClass=label,
                      fieldClass=field,
                      boxClass=box,
                      access, tooltips=[],
                      options=[], min=0, max=1000000,
                      length=10, postback }).

 -record(sec,       { id,
                      name,
                      desc="" }).

 -record(but,       { id,
                      postback,
                      name,
                      title,
                      sources=[],
                      class }).

  -record(sel,      { id,
                      postback,
                      name,
                      title }).

 -record(opt,       { id,
                      postback,
                      name,
                      title,
                      checked=false,
                      disabled=false,
                      noRadioButton=false }).

 -record(validation, { name, type, msg,
                       extract = fun(X) -> X end,
                       options=[], function,
                       field={record,pos} }).

KVX Data Model

The Metainformation is used to generate KVS Data Model. The KVS layer provides persistence.

NITRO Applications

JavaScript Web Application is generated using Metainformation and Data Model. N2O is used as a domain specific language to generate forms. JavaScript/OTP is used to generate form. Average rendering speed is 25 forms per second. Erlang and JavaScript/OTP are used to define validation rules applied to documents during workflow.

BPE Processes

Workflows are complimentary to business rules and could be specified separately. BPE defenitions provide front API to end-user applications.

Credits

• Maxim Sokhatsky

OM A HUM