title: Django: using ForeignKeyRawIdWidget outside of admin forms
body: <p>I'm trying to find some documentation of how to use the ForeignKeyRawIdWidget in my own forms. Currently I keep getting the error, "<strong>init</strong>() takes at least 2 non-keyword arguments (1 given)" which tells me nothing.</p>
  
  <p>Any help would be most appreciated. Googling this turns up little but dev conversations and no examples that I can find of how to implement it.</p>
  
  <p><strong>Update</strong>: This is solved; see solution below.</p>