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63 lines
1.5 KiB
63 lines
1.5 KiB
class Library < ApplicationRecord
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include AASM
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belongs_to :user
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belongs_to :cover, class_name: 'Attachment', foreign_key: :cover_id, optional: true
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belongs_to :laboratory, optional: true
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has_many :library_applies, dependent: :delete_all
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has_many :library_library_tags, dependent: :delete_all
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has_many :library_tags, through: :library_library_tags
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has_many :attachments, as: :container
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has_one :praise_tread_cache, foreign_key: :object_id
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has_many :praise_treads, as: :praise_tread_object, dependent: :destroy
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validates :uuid, presence: true, uniqueness: true
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aasm(:status) do
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state :pending, initial: true
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state :processing
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state :refused
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state :published
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event :submit do
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transitions from: [:pending, :refused], to: :processing
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end
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event :refuse do
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transitions from: :processing, to: :refused
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end
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event :publish do
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transitions from: :processing, to: :published
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end
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end
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before_save :set_laboratory
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private def set_laboratory
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return unless new_record?
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self.laboratory = Laboratory.current if laboratory_id.blank?
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end
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def increment_visited_count!(num = 1)
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increment_column!(:visited_count, num)
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end
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def generate_uuid
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uuid = Util::UUID.time_uuid
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while Library.exists?(uuid: uuid)
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uuid = Util::UUID.time_uuid
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end
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self.uuid = uuid
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end
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private
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def increment_column!(column, num = 1)
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self.class.connection.execute("update #{self.class.table_name} set #{column} = COALESCE(#{column}, 0) + #{num} where id = #{id}")
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end
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end |