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 = <<-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?}>
    	<a href='#{url_for(sort_params)}'>#{name}<i class='fa fa-sort#{sort_direction.present? ? "-#{sort_direction}" : ""}'></i></a>
    </td>
   HTML

   html.html_safe
end