How to find if range is contained in an array of ranges?

Question

Example

business_hours[\'monday\'] = [800..1200, 1300..1700]
business_hours[\'tuesday\'] = [900..1100, 1300..1700]

...

I then have

Answer 1

To answer your question's title, find if a range of arrays contains a range:

ary = [800..1200, 1300..1700]

test = 800..830
p ary.any? {|rng| rng.include?(test.first) and rng.include?(test.last)}
# => true

test = 1245..1330
p ary.any? {|rng| rng.include?(test.first) and rng.include?(test.last)}
# => false

which could be written as

class Range
  def include_range?(r)
    self.include?(r.first) and self.include?(r.last)
  end
end