zammad/db/migrate/20170714000001_object_manager_user_email_optional.rb

class ObjectManagerUserEmailOptional < ActiveRecord::Migration[4.2]
  def up

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

    ObjectManager::Attribute.add(
      force: true,
      object: 'User',
      name: 'email',
      display: 'Email',
      data_type: 'input',
      data_option: {
        type: 'email',
        maxlength: 150,
        null: true,
        item_class: 'formGroup--halfSize',
      },
      editable: false,
      active: true,
      screens: {
        signup: {
          '-all-' => {
            null: false,
          },
        },
        invite_agent: {
          '-all-' => {
            null: false,
          },
        },
        invite_customer: {
          '-all-' => {
            null: false,
          },
        },
        edit: {
          '-all-' => {
            null: true,
          },
        },
        view: {
          '-all-' => {
            shown: true,
          },
        },
      },
      to_create: false,
      to_migrate: false,
      to_delete: false,
      position: 400,
    )
  end
end