Дія 'Видалення'

Special handler instance_canDelete allows to disable or hide 'delete' buttons on forms (table and user dictionary attributes). It's enables to control ability to delete entry from the script module.

instance_canDelete function can return either boolean value (enable or disable 'delete' button) or object with params

• canDelete (boolean) - enable or disable 'delete button'
• hideButton (boolean) - hide delete button from toolbar
• reason (string) - tooltip for disabled button with reason to not delete this entry

Basic usage:

module.exports = {
  instance_canDelete(event) {
    // do not delete entry if attribute value exceeds the threshold
    if (event.documentItem.getAttribute('someNumberAttr') > 200) {
      return {canDelete: false, hideButton: false, reason: 'Value too much to delete!'}
    }

    // do not delete entry if text attribute value includes some keyword
    // and use this value as reason to not delete entry
    if (event.documentItem.getAttribute('someTextAttr') && event.documentItem.getAttribute('someTextAttr').indexOf('do not delete') > -1) {
      return {canDelete: false, hideButton: false, reason: event.documentItem.getAttribute('someTextAttr')}
    }

    return true
  }
}