In Rails while using the `where` method, how to match only the year and month? -

In Rails while using the `where` method, how to match only the year and month? -

normally, select records same date utilize :

bronze.where(regdate: date.new(2014,03,03))

how can utilize select year , month?

for month be:

date = # set date here bronze.where(regdate: date.beginning_of_month...date.beginning_of_month + 1.month)

analogically year.

ruby-on-rails ruby-on-rails-4