While trying to debug some HTTP code, I wanted to be able to see what the actual HTTP request looked before it was sent. So, I added a #to_s method:
require 'stringio'
class Net::HTTPGenericRequest
def to_s
io = StringIO.new
exec(io, '1.1', path)
io.string
end
end
All the built in requests extend HTTPGenericRequest, so now I can call #to_s on any request:
request = request = Net::HTTP::Get.new('/some/path')
request.set_content_type 'text/html'
request.basic_auth 'username', 'password'
puts request.to_s
Which gives me:
GET /some/path HTTP/1.1
Accept: */*
Content-Type: text/html
Authorization: Basic dXNlcm5hbWU6cGFzc3dvcmQ=
I had also intended to add a #to_s method to the response, but it wasn’t obvious how to accomplish that, and I found my bug before I needed it. So, if anyone feels ambitious…
For those pesky times when whole numbers just won’t cut it, but you only want some precision.
7.7.round(0.5) #=> 7.5
7.95.round(0.5) #=> 8
8.2.round(1.5) #=> 7.5
8.3.round(1.5) #=> 9
The magic, courtesy of Daniel Morrison:
class Float
def round(round_to = 1.0)
mod = self % round_to
rounded = self - mod + (mod >= round_to/2.0 ? round_to : 0)
rounded % 1 == 0 ? rounded.to_i : rounded
end
end
Note that do to some quirks with Ruby’s handling of floats, you won’t get what you expect in some situations:
3.5.round(0.2) #=> 3.4, instead of 3.6
