{
  "title": "Select2 Input",
  "type": "select2",
  "attribute": {
    "requiredOne": {
      "dataenum": "value1;value2",
      "datatable": "table_name,column_name"
    },
    "optional": {
      "style": "string inline stylesheet",
      "help": "string help-block",
      "relationship_table": "table relation for many to many. datatable attr is required",
      "datatable_where": "string where condition",
      "datatable_format": "sql concat alike. e.g : id,' - ',title",
      "datatable_exception": "string value exception",
      "datatable_orig": "original datatable|original column[|original key]",
      "datatable_ajax": "true or false"
    }
  }
}