gitlab-org--gitlab-foss/app/models/lfs_objects_project.rb

class LfsObjectsProject < ActiveRecord::Base
  belongs_to :project
  belongs_to :lfs_object

  validates :lfs_object_id, presence: true
  validates :lfs_object_id, uniqueness: { scope: [:project_id], message: "already exists in project" }
  validates :project_id, presence: true

  after_commit :update_project_statistics, on: [:create, :destroy]

  private

  def update_project_statistics
    ProjectCacheWorker.perform_async(project_id, [], [:lfs_objects_size])
  end
end