Routing problems with STI - ruby-on-rails

Question

I've declared an STI on Works
class Work < ActiveRecord::Base
validates :title, presence: true
validates :visibility, presence: true
belongs_to :category
end
class Story<Work
end
class Poem<Work
end
Code for form:
<div class="panel panel-blue margin-bottom-40">
<div class="panel-heading">
<h3 class="panel-title"><i class="icon-tasks"></i> Item Details</h3>
</div>
<div class="panel-body">
<%= form_for(#work, :html =>{:class =>"margin-bottom-40 new_item ",:multipart => true}) do |f| %>
<% if #work.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(#work.errors.count, "error") %> found </h2>
<ul>
<% #work.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="form-group">
<%= f.label "Title",:class=>"control-label" %>
<div class="controls">
<%= f.text_field :title,:class=>"form-control",:placeholder=>"Title of the story/poem" %>
<div class="description">
<div class="">
<strong>Enter a suitable title for your story/poem
</strong>
</div>
</div>
</div>
</div>
<div class="form-group">
<%= f.label :type,:class=>"control-label" %>
<div class="controls">
<%= f.select :type,{"Story"=>"Story","Poem"=>"Poem"},{},:class=>"form-control",:placeholder=>"Story/Poem" %>
<div class="description">
<div class="">
<strong>Is it a story or a poem?
</strong>
</div>
</div>
</div>
</div>
<%
visibilities=["Me Only","Anyone with link","Logged In Users","Everyone"]
%>
<div class="form-group">
<%= f.label :visibility,:class=>"control-label" %>
<div class="controls">
<% [ 3,2, 1, 0 ].each do |option| %>
<br><%= radio_button_tag :visiblity, option, #visibility == option %>
<%= label_tag "visibility_#{option}", visibilities[option].humanize %>
<% end %>
<div class="description">
<div class="">
<strong>
</strong>
</div>
</div>
</div>
</div>
<div class="form-group">
<%= f.label :category_id,:class=>"control-label" %>
<div class="controls">
<%= f.collection_select :category_id,Category.all,:id,:name,{},:class=>"form-control" %>
<div class="description">
<div class="">
<strong>
Type your story/Poem here
</strong>
</div>
</div>
</div>
</div>
<div class="form-group">
<%= f.label :content,:class=>"control-label" %>
<div class="controls">
<%= f.text_area :content,:class=>"form-control" %>
<div class="description">
<div class="">
<strong>
</strong>
</div>
</div>
</div>
</div>
<div class="actions">
<%= f.submit :class=>"btn btn-primary" %>
<%= link_to 'Back', works_path,:class=>"btn" %>
</div>
<% end %>
I have scaffolding for work with the parameter Type which accepts Story and Poem. When I submitted the form initially, I would get a stories_path not found error so I mapped stories and poems paths as follows:
resources :stories, :controller => 'works'
resources :poems, :controller => 'works'
So when I submit the first time, the form shows validation errors. When I submit it again after correcting validation, I get an exception
ActionController::ParameterMissing in WorksController#create
in this line:
params.require(:work).permit(:title, :type, :visibility, :category_id, :content)
I assume this is because its now renaming all the fields to story[] instead of work[]
How do I fix this and in the greater picture, how do I make STI work on the same controller. I just want to be able to use Poem.all and Story.all for fetching records.
Submisson currently works through the same interface
I am allowing the user to select the type of work in the form.