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# File 'lib/sortable_table/helpers/action_view_extension.rb', line 3
def sort_by(column, options = {})
current_column = options[:current_column] || SortableTable::SortColumn.new(nil, nil)
title = options[:title] || column.titleize
prefix = options[:prefix]
is_current_column = column == current_column.column
css_class = is_current_column ? "current #{current_column.direction}" : nil
direction = is_current_column && current_column.direction == 'asc' ? 'desc' : 'asc'
link_to title, params.merge("#{prefix}sort" => column,
"#{prefix}direction" => direction,
"#{prefix}page" => nil),
class: css_class
end
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