class Perm < ActiveRecord::Base
  ##
  # Associations
  has_and_belongs_to_many :users, :join_table => :users_perms

  ##
  # Possibly needed for active_admin
  #   -relies on protected_attributes gem as syntax depricated in rails 4.2
  #attr_accessible :name, :as => [:default, :admin]

  validates :name, presence: true, uniqueness: true

  ##
  # Constant perms
  #ADD_ORGS            = Perm.where(name: 'add_organisations').first.freeze
  #CHANGE_AFFILIATION  = Perm.where(name: 'change_org_affiliation').first.freeze
  #GRANT_PERMISSIONS   = Perm.where(name: 'grant_permissions').first.freeze
  #MODIFY_TEMPLATES    = Perm.where(name: 'modify_templates').first.freeze
  #MODIFY_GUIDANCE     = Perm.where(name: 'modify_guidance').first.freeze
  #USE_API             = Perm.where(name: 'use_api').first.freeze
  #CHANGE_ORG_DETAILS  = Perm.where(name: 'change_org_details').first.freeze
  #GRANT_API           = Perm.where(name: 'grant_api_to_orgs').first.freeze
  
  scope :add_orgs, -> {Perm.find_by(name: 'add_organisations')}
  scope :change_affiliation, -> {Perm.find_by(name: 'change_org_affiliation')}
  scope :grant_permissions, -> {Perm.find_by(name: 'grant_permissions')}
  scope :modify_templates, -> {Perm.find_by(name: 'modify_templates')}
  scope :modify_guidance, -> {Perm.find_by(name: 'modify_guidance')}
  scope :use_api, -> {Perm.find_by(name: 'use_api')}
  scope :change_org_details, -> {Perm.find_by(name: 'change_org_details')}
  scope :grant_api, -> {Perm.find_by(name: 'grant_api_to_orgs')}
end