zammad/db/migrate/20180320000001_setting_table_group_by_show_count.rb

class SettingTableGroupByShowCount < ActiveRecord::Migration[5.1]
  def up

    # return if it's a new setup
    return if !Setting.find_by(name: 'system_init_done')

    Setting.create_if_not_exists(
      title: 'Open ticket indicator',
      name: 'ui_table_group_by_show_count',
      area: 'UI::Base',
      description: 'Total display of the number of objects in a grouping.',
      options: {
        form: [
          {
            display: '',
            null: true,
            name: 'ui_table_group_by_show_count',
            tag: 'boolean',
            translate: true,
            options: {
              true  => 'yes',
              false => 'no',
            },
          },
        ],
      },
      state: false,
      preferences: {
        permission: ['admin.ui'],
      },
      frontend: true
    )
  end
end