how to convert a hash value returned from a date_select in rails to a Date object?

Question

I have a date_select in my view inside a form, however on submit the value returned is in a hash form like so:

{\"(1i)\"=>\"2010\", \"(2i)\"=>\"8\", \"         


        

Answer 1

This particular code (the one that does conversion) can be tracked from lib/active_record/connection_adapters/abstract/schema_definitions.rb, line no 67 onwards, i.e. the method type_cast.

These two methods are used to generate a date from string:

def fast_string_to_date(string)
  if string =~ Format::ISO_DATE
    new_date $1.to_i, $2.to_i, $3.to_i
  end
end

# Doesn't handle time zones.
def fast_string_to_time(string)
  if string =~ Format::ISO_DATETIME
    microsec = ($7.to_f * 1_000_000).to_i
    new_time $1.to_i, $2.to_i, $3.to_i, $4.to_i, $5.to_i, $6.to_i, microsec
  end
end

# Note that ISO_DATE is:
ISO_DATE = /\A(\d{4})-(\d\d)-(\d\d)\z/