name:                   search
fields:
  -  keywords:
        name:
            en:         Look for
        type:           text
        min_length:     3
        max_length:     150
  -  type:
        name:
            en:         Search in
        type:           list
        display:        select
        options:        []
        default:        'all_notices'
  -  source:
        name:
            en:         Publication
        type:           list
        display:        select
        options:        ''
        default:        ''
  - date_limit:
        type:           list
        display:        select
        options:        date_limit
        default:        0