Creates a file upload field. If you are using file uploads then you will also need to set the multipart option for the form tag:

<%= form_tag { :action => "post" }, { :multipart => true } %>
  <label for="file">File to Upload</label> <%= file_field_tag "file" %>
  <%= submit_tag %>
<%= end_form_tag %>

The specified URL will then be passed a File object containing the selected file, or if the field was left blank, a StringIO object.

Options

• Creates standard HTML attributes for the tag.
• :disabled - If set to true, the user will not be able to use this input.

Examples

file_field_tag 'attachment'
# => <input name="attachment" type="file" />

file_field_tag 'avatar', :class => 'profile-input'
# => <input name="avatar" type="file" />

file_field_tag 'picture', :disabled => true
# => <input name="picture" type="file" disabled="disabled" />

file_field_tag 'resume', :value => '~/resume.doc'
# => <input name="resume" type="file" value="~/resume.doc" />

file_field_tag 'user_pic', :accept => 'image/png,image/gif,image/jpeg'
# => <input name="user_pic" accept="image/png,image/gif,image/jpeg" type="file" />

file_field_tag 'file', :accept => 'text/html', :class => 'upload', :value => 'index.html'
# => <input name="file" accept="text/html" type="file" value="index.html" />

Source Code

# File action_view/helpers/form_tag_helper.rb, line 188
def file_field_tag(name, options = {})
  text_field_tag(name, nil, options.update("type" => "file"))
end