gistfile1.txt

form:
<div id="newRetetarModal" class="modal hide fade">
  <button type="button" class="close" data-dismiss="modal">x</button>
  <div class="page-header">
    <h2> Retetar nou</h2>
  </div>
  <% @retetar = Retetar.new %>
  <input id="nimic" type="hidden" value="<%= params[:modal] = true%>" />
  <%= render :partial => '/retetars/form' %>
</div>

_form:
 <div class="field">
    <%= f.label :nr_ultima_reteta %>
    <%= f.text_field :nr_ultima_reteta %>
  </div>
  <div class="actions">
    <%= f.submit %>
  </div>
  <input id="nimic" type="hidden" value="<%= params[:modal] %>" />
  <%= debug params %>
<% end %>
controller:
 def new
    @retetar = Retetar.new

    respond_to do |format|
      format.html # new.html.erb
      format.json { render json: @retetar }
    end
  end

def create
    @retetar = Retetar.new(params[:retetar])

    respond_to do |format|
      if @retetar.save
        format.js {render}
        puts params
        if params.has_key?(:modal)
          format.html{notice:'Bravo ai adaugat un retetar'}
          puts 'plm'
        else
          format.html { redirect_to @retetar, notice: 'Retetar was successfully created.' }
          puts 'gresit'
        end
        format.json { render json: @retetar, status: :created, location: @retetar }
      else
        format.html { render action: "new" }
        format.json { render json: @retetar.errors, status: :unprocessable_entity }
      end
    end
  end