How to set an attr_accessor date via Rails date_select and have Rails handle the multi-attributes automatically.

attr_accessor_dates.md

Your Class:

class YourClass < ActiveRecord::Base
  attr_accessor :some_date
  columns_hash["some_date"] = ActiveRecord::ConnectionAdapters::Column.new("some_date", nil, "date")
end

Your View:

<%= form_for :your_class do |f| %>
  <%= f.date_select :some_date %>
  <%= f.submit %>
<% end %>

Your Controller:

@your_class.attributes = params[:your_class]

I had change the last parameter to Column.new to ActiveRecord::Type::Date.new to get this working in Rails 4.2.

columns_hash["some_date"] = ActiveRecord::ConnectionAdapters::Column.new("some_date", nil, ActiveRecord::Type::Date.new)

aaron thx