app/models/dashboard/administrator_task.rb
class Dashboard::AdministratorTask < ApplicationRecord
belongs_to :source, polymorphic: true
belongs_to :user
validates :source, presence: true
default_scope { order(created_at: :asc) }
scope :done, -> { where.not(executed_at: nil) }
scope :pending, -> { excluding(done) }
def title
"#{source.proposal.title} #{source.action.title}"
end
end