methods:
  post:           [input1, input2, input3, input4]

names:
  input1:
    required:     no
    group:        group1
  input2:
    required:     no
    group:        group1
    validators:   [nameValidator]

  input3:
    required:     no
    group:        group2
  input4:
    required:     no
    group:        group2

nameValidator:
  class:          sfStringValidator
  param:
    min:          10
    min_error:    nameValidator