def create

    params[:book][:authors].map!{|id| Author.find(id)} if params[:book][:authors]

    if params[:author_text] and params[:author_text].strip != ''
      authors = params[:author_text].strip.split(/[\r\n]+/)
      params[:book][:authors] = Array.new if !params[:book][:authors]
      authors.each do |string|
        _, part1, part2 = string.match(/(.*)\s([^\s]+)$/).to_a
        params[:book][:authors] << Author.find_or_create_by_first_name_and_last_name(part1, part2)
      end
    end


    @book = Book.new(params[:book])

    respond_to do |format|
      if @book.save
        flash[:notice] = 'Book was successfully created.'
        format.html { redirect_to(@book) }
        format.xml  { render :xml => @book, :status => :created, :location => @book }
      else
        @books = Book.all
        format.html { render :action => "index" }
        format.xml  { render :xml => @book.errors, :status => :unprocessable_entity }
      end
    end
  end