Rails, how to determine if a user was created today?

Question

I would like a way to determine if a User record is new or not. Based on where I need to do this in my app, I would like to do this by know if the user was created today or now.

How can I do something like:

if current_user.created_at.today?

Any timezone issues? Maybe it would be better to do, created_at in the last 24 hours?

Thanks

Answer 1

我宁愿使用current_user.created_at.to_date == Date.current ，因为它更加自我解释。

Answer 2

To check if the user was created in the last 24 hours, do something like this:

if current_user.created_at > Time.now - 24.hours
  #...
end

Answer 3

you definitely have several approaches, this is also why I like rails && ruby. Anyway don't forget about Demeter Law , hence I will go with the following:

class User
  # ... methods and other active record stuff

  def created_today?
    self.created_at.to_date == Date.today
  end

end

and than you can see if a user is created today with the following api,

 if User.find(params[:id]).created_today?
   #do something...

Answer 4

Or...

 scope :today, lambda {
   where('authdate = ?', Date.today )
  }

Answer 5

If your application needs to support time zones:

• Ensure you have the correct time zone set in config/application.rb : config.time_zone = "Mountain Time (US & Canada)"
• Access the current time: Time.zone.now
• Access the name of the default time zone: ActiveSupport::TimeZone[Rails.configuration.time_zone]
• Retrieve the UTC offset for the default time zone: ActiveSupport::TimeZone[Rails.configuration.time_zone].utc_offset / 1.hour