How to know if today's date is in a date range?

ruby date range
Landitus picture Landitus · Dec 23, 2010 · Viewed 63.7k times · Source

I have an event with start_time and end_time and want to check if the event is "in progress". That would be to check if today's date is in the range between the two dates.

How would you do this in a function?

Answer

heathd picture heathd · Aug 24, 2011

In Ruby 1.9.2 === doesn't work, I get an error:

irb(main):019:0> (Time.now .. (Time.now+1)) === Time.now
TypeError: can't iterate from Time
    from (irb):19:in `each'
    from (irb):19:in `include?'
    from (irb):19:in `include?'
    from (irb):19:in `==='
    from (irb):19
    from /opt/ruby192/bin/irb:12:in `<main>'

Instead use #cover?:

irb(main):002:0> (Time.now..Time.now+4).cover?(Time.now)
=> true
irb(main):003:0> (Time.now..Time.now+4).cover?(Time.now+10)
=> false

Related questions

Querying last 30 days date range with Mongoid and Ruby?

How do I go about querying a date range (of say the last 30 days from now) with Mongoid and Ruby? I need to end up with an array or hash like the following: { 15 => 300, 14 => 23, 13 => 23 ... 30 => 20 # Goes over into …

Read More
Ruby/Rails: converting a Date to a UNIX timestamp

How would I get a UNIX timestamp (number of seconds since 1970 GMT) from a Date object in a Rails app? I know Time#to_i returns a timestamp, but doing Date#to_time and then getting the timestamp results in …

Read More
Rails formatting date

I am posting a date to an API and the required format is as follows: 2014-12-01T01:29:18 I can get the date from the model like so: Model.created_at.to_s That returns: 2014-12-01 01:29:18 -0500 How can …

Read More