MaxMorais

# This widget requires jQuery-iMask to run
#https://github.com/cwolves/jQuery-iMask
from gluon.dal import Field
import re

def factory(mask='', auto_start=True, empty_chr="_", error_message="Did not match!"):
    assert len(mask)>1, 'empty mask not is allowed'
    assert len(empty_chr)==1, 'empty_chr requires one character'
    from gluon.sqlhtml import StringWidget
    from gluon.validators import IS_MATCH, IS_NOT_EMPTY

MaxMorais

// add a trigger on field "custom_field1"
cur_frm.cscript.custom_field1 = function(doc, cdt, cdn) {
  // update a new field "custom_field3"
  doc.custom_field3 = flt(doc.custom_field1)*flt(doc.custom_field2)/1000; 

  // refresh in form
  refresh_field('custom_field3');
}