pgfqe6ch8/app/models/project_package.rb

class ProjectPackage < ActiveRecord::Base
  include AASM

  acts_as_attachable

  CATEGORY_VALUES = %w(front backend mobile database cloud_compute_and_big_data devops_and_test ai other)

  attr_accessible :title, :content, :category, :deadline_at, :contact_name, :contact_phone, :min_price, :max_price

  belongs_to :creator, class_name: 'User'

  has_many :project_package_applies, dependent: :destroy
  has_one :process_project_package_apply, conditions: { status: :pending }, class_name: 'ProjectPackageApply'

  has_many :bidding_users, dependent: :delete_all
  has_many :win_bidding_users, conditions: { status: :bidding_won }, class_name: 'BiddingUser'
  has_many :lose_bidding_users, conditions: { status: :bidding_lost }, class_name: 'BiddingUser'

  has_many :attachments, as: :container, dependent: :destroy

  validates :category, presence: true, inclusion: { in: CATEGORY_VALUES }
  validates :title, presence: true, length: { maximum: 60 }
  validates :content, presence: true
  validates :deadline_at, presence: true
  validates :contact_name, presence: true, length: { maximum: 20 }
  validates :contact_phone, presence: true, format: { with: /1\d{10}/ }
  validates :min_price, numericality: { greater_than: 0 }
  validates :max_price, numericality: { greater_than: ->(obj){ obj.min_price } }, allow_blank: true

  aasm(:status) do
    state :pending, initiali: true
    state :applying
    state :refused
    state :published
    state :bidding_ended
    state :bidding_finished

    event :apply do
      transitions from: [:pending, :refused], to: :applying
    end

    event :refuse do
      transitions from: :applying, to: :refused
    end

    event :publish do
      transitions from: :applying, to: :published
    end

    event :end_bidding do
      transitions from: :published, to: :bidding_ended
    end

    event :finish_bidding do
      transitions from: [:bidding_ended], to: :bidding_finished
    end
  end

  def visitable?
    !editable?
  end

  def editable?
    pending? || applying? || refused?
  end

  def deletable?
    pending? || refused?
  end

  def bidding_end?
    flag = deadline_at < Time.now
    end_bidding! if flag && can_end_bidding?
    flag
  end

  def can_bidding?(user)
    published? && !bidding_end? && !bidding_users.exists?(user_id: user.id)
  end

  def increment_visit_count!
    ProjectPackage.connection.execute("update project_packages set visit_count = COALESCE(visit_count, 0) + 1 where id = #{id}")
  end

  def category_text
    I18n.t("project_package.category.#{category}")
  end
end