title: ActiveRecord date field with non-english text
body: <p>I have a form submitting to a controller action with a field that is in the <code>"%B %d, %Y"</code> date format.  Our site has recently added multi-language support and now this is breaking when we translate the text in the field to non-english.</p>
  
  <p>Example in ENGLISH: (This works as expected and populates the field with a date)</p>
  
  <p><code>@model.datetime_field = "May 01, 2016"</code></p>
  
  <p>Example in GERMAN. (This will not assign the field with a date)</p>
  
  <p><code>@model.datetime_field = "Mai 01, 2016"</code></p>
  
  <p>I've looked into the ActiveRecord source code and also at a few gems (like Alchemy) and I haven't found this problem to be solved.  Please don't suggest that I change the form value, because due to the nature of the application/business requirements it needs to stay as is. Also to note, I need the solution to work for mass-assignment, e.g. <code>@model.save(params[:model])</code> and <code>@model.update(params[:model])</code></p>
  
  <p>Does anyone know if there is something in Rails/rails-18n/3rd-party gem that solves this problem or do I have to write my own custom parser?</p>
  
  <p>Thanks in advance for your suggestions.</p>