Module: Sortabl::ActionViewExtensions::SortablHelper

Defined in:
lib/sortabl/sortabl_helper.rb

Instance Method Summary collapse

Instance Method Details

#render_th(name, attribute, *args) ⇒ Object

Renders table head Uses fontawesome as default icons <th ‘data-sortable’: ‘attribute_direction’>Name <i class=‘fa fa-…’></th>



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# File 'lib/sortabl/sortabl_helper.rb', line 9

def render_th name, attribute, *args

  # To provide full path with all given params
  # make a copy of incoming params and override sort_param only
  sort_params = params.except(:sort)

  # Set default sort path
  sort_params[:sort] = "#{attribute}_asc"

  # if there is already a sort param set, invert or remove sort direction
  if params[:sort].present?

    # if sort param match current attribute, change direction
    if attribute.to_s == params[:sort].gsub(/(_asc$|_desc$)/, '')

      sort_direction = params[:sort].gsub(/^((?!desc$|asc$).)*/, '')

      sort_params[:sort] = "#{attribute}_desc"   if sort_direction == 'asc'
      sort_params[:sort] = nil                   if sort_direction == 'desc'

    end
  end

  # Generate HTML Code
  html = "    <th id=\"\#{args[0][:id] if args.present?}\" class=\"\#{args[0][:class] if args.present?}\" \#{args[0].map{ |k,v| \"\#{k}='\#{v}'\" unless (k.to_s =~ /^data-(.*)$/).nil? }.join(' ') if args.present?}>\n      <a href='\#{url_for(sort_params)}'>\#{name}<i class='fa fa-sort\#{sort_direction.present? ? \"-\#{sort_direction}\" : \"\"}'></i></a>\n    </td>\n   HTML\n\n   html.html_safe\nend\n"