Ruby on Rails函数用于模型属性

Question

I have one active record model called Task with following attributes:

• name (string)
• due (date)
• priority (int)

How do I create a function for priority so I can call it something like this

@task.priority.to_str would produce "Low", "High" based off the integer value

I don't want to override the attribute method to print out the string because I need to access the actual value.

Answer 1

You can add a new instance method:

class Task
  def str_priority
    priority < 5 ? 'Low' : 'High'
  end
end

@task.str_priority