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Contents
module Spotlight
##
# Exhibit authorization roles
class Role < ActiveRecord::Base
ROLES = %w(admin curator)
belongs_to :exhibit
belongs_to :user, class_name: '::User', autosave: true
validates :role, inclusion: { in: ROLES }
validates :user_key, presence: true
validate :user_must_exist, if: -> { user_key.present? }
validate :user_must_be_unique, if: :user
def user_key
if user
@user_key = user.user_key
else
@user_key
end
end
# setting user key causes the user to get set
def user_key=(key)
@user_key = key
self.user ||= ::User.find_by_user_key(key)
user.user_key = key if user
end
protected
def user_must_exist
errors.add(:user_key, 'User must sign up first.') unless user.present?
end
# This is just like
# validates :user, uniqueness: { scope: :exhibit}
# but it puts the error message on the user_key instead of user so that the form will render correctly
def user_must_be_unique
errors.add(:user_key, 'already a member of this exhibit') if Spotlight::Role.where(exhibit_id: exhibit_id, user_id: user.id).where.not(id: id).any?
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems