class ArticleGrid << Gitter::Grid

  ### First define the source for your data
  # helpers are accessible by #h
  scope do
    Article.where(:owner => h.current_user)
  end

  ### Then you may define filters

  # filter by attribute
  filter :name

  # filter by multiple columns: filters by :name OR :description
  filter :search, :columns => [:name, :description]

  # filter by named scope
  filter :topsellers, :scope => :topsellers

  # customized filter
  filter :on_stock do |scope|
    scope.where('stock > 0')
  end

  filter :out_of_stock do |scope|
    scope.where(:stock => 0)
  end

  # select from given filters
  filter :availability, :select => [:on_stock, :out_of_stock]

  # add to facets
  filter :category, :facet => true

  # select among named scopes
  filter :price_range, :scopes => [:niceprice, :regular]

  # you can provide 'search' like attributes
  filter :search, :ignore_case => true, :exact => false

  # The former can be abbreviated by
  search :search

  ### Define your data grid

  # show an attribute
  column :article_no

  # provide a hardcoded header (i18n support also available)
  column :description, :header => 'Details'

  # make the column sortable
  column :name, :sort => true

  # Customize your data cell
  # Access your model through variable 'model'
  column :price, :sort => true do
    "#{model.price/100.floor},#{model.price%100} USD"
  end

  # helpers are accessible via #h
  column :details, :header => false do
    h.link_to 'details', h.edit_article_path(self)
  end

end

def index
  @grid = ArticleGrid.new(self)
end