A little DSL (almost) to create HTML tables

gistfile1.rb

class Deepthought::DSL::Table
  def initialize(array, &block)
    return self if array.empty?

    @field_names = []
    @array = array
    @block = block

    return table
  end

  def table
    tbody # needs to be called to realize the headers for thead
    "<table class=\"genTable\">\n" + thead + tbody + "</table>\n"
  end

  def field(name, inside = nil)
    @field_names << name unless @field_names.include?(name)
    @tr << "\t\t\t<td>#{inside or @record[name.to_sym]}</td>\n"
  end

  def to_s
    table.to_s
  end

  def tbody
    return @tbody if @tbody

    @tbody = "\t<tbody>\n" +
    @array.map do |record|
      class_name = record.class.to_s.underscore
      @tr = "\t\t<tr id=\"#{class_name}-#{record.id}\" class=\"#{class_name}\">\n"
      @record = record
      @block.call(self, record)
      @tr + "\t\t</tr>\n"
    end.join
  end

  def thead
    "\t<thead>\n"+
    "\t\t<tr>\n" +
    @field_names.map do |attr|
      "\t\t\t<th>#{attr.to_s.titleize}</th>\n"
    end.join +
    "\t\t</tr>\n\t</thead>\n"
  end
end