```ruby
class Ticket < ActiveRecord::Base
  # Remember to create a migration!
  belongs_to :coach, :class_name => "User"
  belongs_to :student, :class_name => "User"

  def self.today
    where("created_at >= ?", Time.zone.now.beginning_of_day)
  end

  def self.fresh
  	where(created_at: (Time.now.midnight - 1.day)..Time.now)
  end

end
```

Add Age Method to Tickets
user
```ruby
class Ticket < ActiveRecord::Base
  # Remember to create a migration!
  belongs_to :coach, :class_name => "User"
  belongs_to :student, :class_name => "User"

  def self.today
    where("created_at >= ?", Time.zone.now.beginning_of_day)
  end

  def self.fresh
  	where(created_at: (Time.now.midnight - 1.day)..Time.now)
  end

  def age 
  	minutes = ((Time.now - created_at)/60).to_i
  	minutes.divmod(60)

  end

end
```
assistant