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Contents
module Trestle
module SortHelper
def sort_link(text, field, options={})
sort_link = SortLink.new(field, persistent_params, options)
link_to text, sort_link.params, class: sort_link.classes
end
class SortLink
attr_reader :field
def initialize(field, params, options)
@field, @params, @options = field, params, options
end
def active?
@params[:sort] == field.to_s ||
(@options[:default] && !@params.key?(:sort))
end
def params
@params.merge(sort: field, order: order)
end
def order
if active?
reverse_order(current_order)
else
default_order
end
end
def current_order
@params[:order] || default_order
end
def default_order
@options.fetch(:default_order, "asc").to_s
end
def classes
classes = ["sort"]
if active?
classes << "sort-#{current_order}"
classes << "active"
end
classes
end
def reverse_order(order)
order == "asc" ? "desc" : "asc"
end
end
end
end
Version data entries
25 entries across 25 versions & 1 rubygems