Module: StateMachines::Candidature

Included in:
Candidature
Defined in:
app/models/state_machines/candidature.rb

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'app/models/state_machines/candidature.rb', line 2

def self.included(base)
  base.extend ClassMethods
  
  base.class_eval do
    attr_accessor :current_user
    
    const_set 'STATES', [:new, :accepted, :denied]
    const_set 'EVENTS', [:accept, :deny, :quit]
    
    after_initialize :set_initial_state
    
    state_machine :state, initial: :new do
      event :accept do
        transition [:new, :denied] => :accepted
      end
      
      state :accepted do
        validate :candidatures_limit_not_reached
      end
      
      event :deny do
        transition [:new, :accepted] => :denied
      end
      
      event :quit do
        transition :accepted => :denied
      end
      
      after_transition do |object, transition|
        case transition.to
          when 'accepted'
            ProjectUser.find_or_create_by_project_id_and_vacancy_id_and_user_id!(
              project_id: object.vacancy.project_id, vacancy_id: object.vacancy_id, 
              user_id: object.resource_id
            )
            
            if object.vacancy.limit == object.vacancy.candidatures.accepted.count
              object.vacancy.close! unless object.vacancy.closed?
            end
          when 'denied'
            # if comming from :accepted then the vacancy offerer has to reopen the vacancy manually
        end
      end
    end
    
    private
    
    # state validations
    def candidatures_limit_not_reached
      if vacancy.limit == vacancy.candidatures.where(state: 'accepted').count
        errors[:state] << I18n.t('activerecord.errors.models.vacancy.attributes.limit.reached')
      end
    end
    
    def set_initial_state
      self.state ||= :new
    end
  end
end