Creates a start form tag.

options

• action: when use with form_for this will be set as a pluralized version of the label passed to it

• controller: this will be appended to the beginning of the action

• multipart: if set to true then the enctype is set to multipart and method set to post

• urlencoded: if set to true then the enctype is set to x-www-form-urlencoded and method set to post

• plain_text: if set to true then the enctype is set to text/plain and method set to post

• method: regular method attribute in a form defaults to post

• enctype: regular enctype attribute but defaults to application/x-www-form-urlencoded

    form_tag("/myaction")
  
     => 
  
    <form action='/myaction' method='post' enctype='application/x-www-form-urlencoded' >